-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathCourseApi_UI_tutorial.html
More file actions
714 lines (703 loc) · 114 KB
/
CourseApi_UI_tutorial.html
File metadata and controls
714 lines (703 loc) · 114 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
<meta name="generator" content="pandoc">
<meta name="description" content="">
<title>CourseApi_UI_tutorial</title>
<!-- Bootstrap core CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" integrity="sha384-1q8mTJOASx8j1Au+a5WDVnPi2lkFfwwEAa8hDDdjZlpLegxhjVME1fgjWPGmkzs7" crossorigin="anonymous">
<!-- IE10 viewport hack for Surface/desktop Windows 8 bug -->
<link href="https://maxcdn.bootstrapcdn.com/css/ie10-viewport-bug-workaround.css" rel="stylesheet">
<!-- Custom styles for this template -->
<link href="https://mushiyo.github.io/pandoc-toc-sidebar/css/dashboard.css" rel="stylesheet">
<!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script>
<script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
<![endif]-->
<style type="text/css">code{white-space: pre;}</style>
<style type="text/css">.sidebar ul{padding-left: 10px;} .sidebar{background-color: #dadada;}</style>
<style type="text/css">
pre > code.sourceCode { white-space: pre; position: relative; }
pre > code.sourceCode > span { display: inline-block; line-height: 1.25; }
pre > code.sourceCode > span:empty { height: 1.2em; }
.sourceCode { overflow: visible; }
code.sourceCode > span { color: inherit; text-decoration: inherit; }
div.sourceCode { margin: 1em 0; }
pre.sourceCode { margin: 0; }
@media screen {
div.sourceCode { overflow: auto; }
}
@media print {
pre > code.sourceCode { white-space: pre-wrap; }
pre > code.sourceCode > span { text-indent: -5em; padding-left: 5em; }
}
pre.numberSource code
{ counter-reset: source-line 0; }
pre.numberSource code > span
{ position: relative; left: -4em; counter-increment: source-line; }
pre.numberSource code > span > a:first-child::before
{ content: counter(source-line);
position: relative; left: -1em; text-align: right; vertical-align: baseline;
border: none; display: inline-block;
-webkit-touch-callout: none; -webkit-user-select: none;
-khtml-user-select: none; -moz-user-select: none;
-ms-user-select: none; user-select: none;
padding: 0 4px; width: 4em;
color: #aaaaaa;
}
pre.numberSource { margin-left: 3em; border-left: 1px solid #aaaaaa; padding-left: 4px; }
div.sourceCode
{ }
@media screen {
pre > code.sourceCode > span > a:first-child::before { text-decoration: underline; }
}
code span.al { color: #ff0000; font-weight: bold; } /* Alert */
code span.an { color: #60a0b0; font-weight: bold; font-style: italic; } /* Annotation */
code span.at { color: #7d9029; } /* Attribute */
code span.bn { color: #40a070; } /* BaseN */
code span.bu { } /* BuiltIn */
code span.cf { color: #007020; font-weight: bold; } /* ControlFlow */
code span.ch { color: #4070a0; } /* Char */
code span.cn { color: #880000; } /* Constant */
code span.co { color: #60a0b0; font-style: italic; } /* Comment */
code span.cv { color: #60a0b0; font-weight: bold; font-style: italic; } /* CommentVar */
code span.do { color: #ba2121; font-style: italic; } /* Documentation */
code span.dt { color: #902000; } /* DataType */
code span.dv { color: #40a070; } /* DecVal */
code span.er { color: #ff0000; font-weight: bold; } /* Error */
code span.ex { } /* Extension */
code span.fl { color: #40a070; } /* Float */
code span.fu { color: #06287e; } /* Function */
code span.im { } /* Import */
code span.in { color: #60a0b0; font-weight: bold; font-style: italic; } /* Information */
code span.kw { color: #007020; font-weight: bold; } /* Keyword */
code span.op { color: #666666; } /* Operator */
code span.ot { color: #007020; } /* Other */
code span.pp { color: #bc7a00; } /* Preprocessor */
code span.sc { color: #4070a0; } /* SpecialChar */
code span.ss { color: #bb6688; } /* SpecialString */
code span.st { color: #4070a0; } /* String */
code span.va { color: #19177c; } /* Variable */
code span.vs { color: #4070a0; } /* VerbatimString */
code span.wa { color: #60a0b0; font-weight: bold; font-style: italic; } /* Warning */
</style>
</head>
<body>
<div class="container-fluid">
<div class="row">
<div id="sidebar" class="col-sm-3 col-md-2 sidebar">
<!--<ul class="nav nav-sidebar">
<li class="active"><a href="#">Overview <span class="sr-only">(current)</span></a></li>
</ul>-->
<ul>
<li><a href="#courseapi-frontend-stepbystep-tutorial"
id="toc-courseapi-frontend-stepbystep-tutorial">CourseApi
Frontend StepByStep Tutorial</a>
<ul>
<li><a href="#setup" id="toc-setup">Setup</a>
<ul>
<li><a href="#backend-cors-config"
id="toc-backend-cors-config">Backend Cors Config</a></li>
<li><a href="#setting-up-environments"
id="toc-setting-up-environments">Setting up
Environments</a></li>
<li><a href="#routing-module" id="toc-routing-module">Routing
Module</a></li>
</ul></li>
<li><a href="#services" id="toc-services">Services</a></li>
<li><a href="#models" id="toc-models">Models</a></li>
<li><a href="#components" id="toc-components">Components</a>
<ul>
<li><a href="#navbar---footer" id="toc-navbar---footer">Navbar
- Footer</a></li>
<li><a href="#topic-comp--get-all-topics"
id="toc-topic-comp--get-all-topics">Topic Comp- GET all
Topics</a></li>
<li><a href="#modal-addition-in-topic"
id="toc-modal-addition-in-topic">Modal Addition in
Topic</a></li>
<li><a href="#add-modal-for-topic"
id="toc-add-modal-for-topic">ADD Modal for Topic</a></li>
<li><a href="#update-modal-for-topic"
id="toc-update-modal-for-topic">UPDATE Modal for
Topic</a></li>
<li><a href="#delete-modal-for-topic"
id="toc-delete-modal-for-topic">DELETE Modal for
Topic</a></li>
</ul></li>
</ul></li>
</ul>
</div>
<div class="col-sm-9 col-sm-offset-3 col-md-10 col-md-offset-2 main">
<h1 id="courseapi-frontend-stepbystep-tutorial">CourseApi Frontend
StepByStep Tutorial</h1>
<p>This project was generated with <a
href="https://github.com/angular/angular-cli">Angular CLI</a> version
13.3.5.</p>
<h2 id="setup">Setup</h2>
<div class="sourceCode" id="cb1"><pre class="sourceCode sh"><code class="sourceCode bash"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="ex">$</span> ng new TodoList</span>
<span id="cb1-2"><a href="#cb1-2" aria-hidden="true" tabindex="-1"></a><span class="ex">$</span> cd Todolist</span>
<span id="cb1-3"><a href="#cb1-3" aria-hidden="true" tabindex="-1"></a><span class="ex">$</span> npm install bootstrap</span>
<span id="cb1-4"><a href="#cb1-4" aria-hidden="true" tabindex="-1"></a><span class="ex">$</span> npm install jquery</span>
<span id="cb1-5"><a href="#cb1-5" aria-hidden="true" tabindex="-1"></a><span class="ex">--</span> Downloaded versions: <span class="st">"bootstrap"</span>: <span class="st">"^4.6.1"</span>, <span class="st">"jquery"</span>: <span class="st">"^3.6.0"</span>,</span>
<span id="cb1-6"><a href="#cb1-6" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb1-7"><a href="#cb1-7" aria-hidden="true" tabindex="-1"></a><span class="ex">We</span> will use </span></code></pre></div>
<p>We will use <a
href="https://www.bootdey.com/snippets/view/bs4-contact-cards">Bootdey -
bs4 contact cards</a> to design our frontend.</p>
<p>Configure <code>angular.json</code> to activate bootstrap and
jquery</p>
<div class="sourceCode" id="cb2"><pre
class="sourceCode json"><code class="sourceCode json"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a><span class="er">"architect":</span> <span class="fu">{</span></span>
<span id="cb2-2"><a href="#cb2-2" aria-hidden="true" tabindex="-1"></a> <span class="dt">"build"</span><span class="fu">:</span> <span class="fu">{</span></span>
<span id="cb2-3"><a href="#cb2-3" aria-hidden="true" tabindex="-1"></a> <span class="dt">"builder"</span><span class="fu">:</span> <span class="st">"@angular-devkit/build-angular:browser"</span><span class="fu">,</span></span>
<span id="cb2-4"><a href="#cb2-4" aria-hidden="true" tabindex="-1"></a> <span class="dt">"options"</span><span class="fu">:</span> <span class="fu">{</span></span>
<span id="cb2-5"><a href="#cb2-5" aria-hidden="true" tabindex="-1"></a> <span class="dt">"outputPath"</span><span class="fu">:</span> <span class="st">"dist/course-api-ui"</span><span class="fu">,</span></span>
<span id="cb2-6"><a href="#cb2-6" aria-hidden="true" tabindex="-1"></a> <span class="dt">"index"</span><span class="fu">:</span> <span class="st">"src/index.html"</span><span class="fu">,</span></span>
<span id="cb2-7"><a href="#cb2-7" aria-hidden="true" tabindex="-1"></a> <span class="dt">"main"</span><span class="fu">:</span> <span class="st">"src/main.ts"</span><span class="fu">,</span></span>
<span id="cb2-8"><a href="#cb2-8" aria-hidden="true" tabindex="-1"></a> <span class="dt">"polyfills"</span><span class="fu">:</span> <span class="st">"src/polyfills.ts"</span><span class="fu">,</span></span>
<span id="cb2-9"><a href="#cb2-9" aria-hidden="true" tabindex="-1"></a> <span class="dt">"tsConfig"</span><span class="fu">:</span> <span class="st">"tsconfig.app.json"</span><span class="fu">,</span></span>
<span id="cb2-10"><a href="#cb2-10" aria-hidden="true" tabindex="-1"></a> <span class="dt">"assets"</span><span class="fu">:</span> <span class="ot">[</span></span>
<span id="cb2-11"><a href="#cb2-11" aria-hidden="true" tabindex="-1"></a> <span class="st">"src/favicon.ico"</span><span class="ot">,</span></span>
<span id="cb2-12"><a href="#cb2-12" aria-hidden="true" tabindex="-1"></a> <span class="st">"src/assets"</span></span>
<span id="cb2-13"><a href="#cb2-13" aria-hidden="true" tabindex="-1"></a> <span class="ot">]</span><span class="fu">,</span></span>
<span id="cb2-14"><a href="#cb2-14" aria-hidden="true" tabindex="-1"></a> <span class="dt">"styles"</span><span class="fu">:</span> <span class="ot">[</span></span>
<span id="cb2-15"><a href="#cb2-15" aria-hidden="true" tabindex="-1"></a> <span class="st">"src/styles.css"</span><span class="ot">,</span></span>
<span id="cb2-16"><a href="#cb2-16" aria-hidden="true" tabindex="-1"></a> <span class="st">"./node_modules/bootstrap/dist/css/bootstrap.min.css"</span></span>
<span id="cb2-17"><a href="#cb2-17" aria-hidden="true" tabindex="-1"></a> <span class="ot">]</span><span class="fu">,</span></span>
<span id="cb2-18"><a href="#cb2-18" aria-hidden="true" tabindex="-1"></a> <span class="dt">"scripts"</span><span class="fu">:</span> <span class="ot">[</span></span>
<span id="cb2-19"><a href="#cb2-19" aria-hidden="true" tabindex="-1"></a> <span class="st">"./node_modules/jquery/dist/jquery.min.js"</span><span class="ot">,</span></span>
<span id="cb2-20"><a href="#cb2-20" aria-hidden="true" tabindex="-1"></a> <span class="st">"./node_modules/bootstrap/dist/js/bootstrap.js"</span></span>
<span id="cb2-21"><a href="#cb2-21" aria-hidden="true" tabindex="-1"></a> <span class="ot">]</span></span>
<span id="cb2-22"><a href="#cb2-22" aria-hidden="true" tabindex="-1"></a> <span class="fu">},</span></span></code></pre></div>
<h3 id="backend-cors-config">Backend Cors Config</h3>
<p><strong><em>application.properties</em></strong></p>
<pre class="proper"><code>frontendURL=http://localhost:4200
# frontendURL=</code></pre>
<p><strong><code>CourseAPI-Spring-Starter\src\main\java\com\swarna\courseapi\config\CorsConfig.java</code></strong></p>
<div class="sourceCode" id="cb4"><pre
class="sourceCode java"><code class="sourceCode java"><span id="cb4-1"><a href="#cb4-1" aria-hidden="true" tabindex="-1"></a><span class="kw">package</span><span class="im"> com</span><span class="op">.</span><span class="im">swarna</span><span class="op">.</span><span class="im">courseapi</span><span class="op">.</span><span class="im">config</span><span class="op">;</span></span>
<span id="cb4-2"><a href="#cb4-2" aria-hidden="true" tabindex="-1"></a><span class="kw">import</span> <span class="im">org</span><span class="op">.</span><span class="im">springframework</span><span class="op">.</span><span class="im">beans</span><span class="op">.</span><span class="im">factory</span><span class="op">.</span><span class="im">annotation</span><span class="op">.</span><span class="im">Value</span><span class="op">;</span></span>
<span id="cb4-3"><a href="#cb4-3" aria-hidden="true" tabindex="-1"></a><span class="kw">import</span> <span class="im">org</span><span class="op">.</span><span class="im">springframework</span><span class="op">.</span><span class="im">context</span><span class="op">.</span><span class="im">annotation</span><span class="op">.</span><span class="im">Configuration</span><span class="op">;</span></span>
<span id="cb4-4"><a href="#cb4-4" aria-hidden="true" tabindex="-1"></a><span class="kw">import</span> <span class="im">org</span><span class="op">.</span><span class="im">springframework</span><span class="op">.</span><span class="im">web</span><span class="op">.</span><span class="im">servlet</span><span class="op">.</span><span class="im">config</span><span class="op">.</span><span class="im">annotation</span><span class="op">.</span><span class="im">CorsRegistry</span><span class="op">;</span></span>
<span id="cb4-5"><a href="#cb4-5" aria-hidden="true" tabindex="-1"></a><span class="kw">import</span> <span class="im">org</span><span class="op">.</span><span class="im">springframework</span><span class="op">.</span><span class="im">web</span><span class="op">.</span><span class="im">servlet</span><span class="op">.</span><span class="im">config</span><span class="op">.</span><span class="im">annotation</span><span class="op">.</span><span class="im">WebMvcConfigurer</span><span class="op">;</span></span>
<span id="cb4-6"><a href="#cb4-6" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb4-7"><a href="#cb4-7" aria-hidden="true" tabindex="-1"></a><span class="at">@Configuration</span></span>
<span id="cb4-8"><a href="#cb4-8" aria-hidden="true" tabindex="-1"></a><span class="kw">public</span> <span class="kw">class</span> CorsConfig <span class="kw">implements</span> WebMvcConfigurer<span class="op">{</span></span>
<span id="cb4-9"><a href="#cb4-9" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb4-10"><a href="#cb4-10" aria-hidden="true" tabindex="-1"></a> <span class="co">// @Value("${frontendURL}")</span></span>
<span id="cb4-11"><a href="#cb4-11" aria-hidden="true" tabindex="-1"></a> <span class="co">// private String frontendURL;</span></span>
<span id="cb4-12"><a href="#cb4-12" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb4-13"><a href="#cb4-13" aria-hidden="true" tabindex="-1"></a> <span class="at">@Override</span></span>
<span id="cb4-14"><a href="#cb4-14" aria-hidden="true" tabindex="-1"></a> <span class="kw">public</span> <span class="dt">void</span> <span class="fu">addCorsMappings</span><span class="op">(</span>CorsRegistry registry<span class="op">)</span> <span class="op">{</span></span>
<span id="cb4-15"><a href="#cb4-15" aria-hidden="true" tabindex="-1"></a> <span class="co">// WebMvcConfigurer.super.addCorsMappings(registry);</span></span>
<span id="cb4-16"><a href="#cb4-16" aria-hidden="true" tabindex="-1"></a> <span class="co">// registry.addMapping("/**").allowedOrigins(frontendURL)</span></span>
<span id="cb4-17"><a href="#cb4-17" aria-hidden="true" tabindex="-1"></a> registry<span class="op">.</span><span class="fu">addMapping</span><span class="op">(</span><span class="st">"/**"</span><span class="op">).</span><span class="fu">allowedOrigins</span><span class="op">(</span><span class="st">"*"</span><span class="op">)</span></span>
<span id="cb4-18"><a href="#cb4-18" aria-hidden="true" tabindex="-1"></a> <span class="op">.</span><span class="fu">allowedMethods</span><span class="op">(</span><span class="st">"GET"</span><span class="op">,</span> <span class="st">"POST"</span><span class="op">,</span> <span class="st">"PUT"</span><span class="op">,</span> <span class="st">"DELETE"</span><span class="op">,</span> <span class="st">"OPTIONS"</span><span class="op">);</span></span>
<span id="cb4-19"><a href="#cb4-19" aria-hidden="true" tabindex="-1"></a> <span class="op">}</span></span>
<span id="cb4-20"><a href="#cb4-20" aria-hidden="true" tabindex="-1"></a><span class="op">}</span></span></code></pre></div>
<h3 id="setting-up-environments">Setting up Environments</h3>
<p><strong><em>environment.ts</em></strong></p>
<div class="sourceCode" id="cb5"><pre
class="sourceCode typescript"><code class="sourceCode typescript"><span id="cb5-1"><a href="#cb5-1" aria-hidden="true" tabindex="-1"></a><span class="im">export</span> <span class="kw">const</span> environment <span class="op">=</span> {</span>
<span id="cb5-2"><a href="#cb5-2" aria-hidden="true" tabindex="-1"></a> production<span class="op">:</span> <span class="kw">false</span><span class="op">,</span></span>
<span id="cb5-3"><a href="#cb5-3" aria-hidden="true" tabindex="-1"></a> apiServerUrl <span class="op">:</span> <span class="st">'http://localhost:8080'</span> <span class="co">// baseUrl is the URL for backend</span></span>
<span id="cb5-4"><a href="#cb5-4" aria-hidden="true" tabindex="-1"></a>}<span class="op">;</span></span></code></pre></div>
<p><strong><em>environment.prod.ts</em></strong></p>
<div class="sourceCode" id="cb6"><pre
class="sourceCode typescript"><code class="sourceCode typescript"><span id="cb6-1"><a href="#cb6-1" aria-hidden="true" tabindex="-1"></a><span class="im">export</span> <span class="kw">const</span> environment <span class="op">=</span> {</span>
<span id="cb6-2"><a href="#cb6-2" aria-hidden="true" tabindex="-1"></a> production<span class="op">:</span> <span class="kw">false</span><span class="op">,</span></span>
<span id="cb6-3"><a href="#cb6-3" aria-hidden="true" tabindex="-1"></a> apiServerUrl <span class="op">:</span> <span class="st">'https://courseapi-spring-boot.herokuapp.com'</span> <span class="co">// apiServerUrl is the URL for backend</span></span>
<span id="cb6-4"><a href="#cb6-4" aria-hidden="true" tabindex="-1"></a>}<span class="op">;</span></span></code></pre></div>
<p>Adding <code>HttpClientModule</code> to
<strong><em>app.module.ts</em></strong>, so that it can fetch data from
backend.</p>
<div class="sourceCode" id="cb7"><pre
class="sourceCode typescript"><code class="sourceCode typescript"><span id="cb7-1"><a href="#cb7-1" aria-hidden="true" tabindex="-1"></a><span class="im">import</span> { HttpClientModule } <span class="im">from</span> <span class="st">'@angular/common/http'</span></span>
<span id="cb7-2"><a href="#cb7-2" aria-hidden="true" tabindex="-1"></a><span class="op">...</span></span>
<span id="cb7-3"><a href="#cb7-3" aria-hidden="true" tabindex="-1"></a> imports<span class="op">:</span> [</span>
<span id="cb7-4"><a href="#cb7-4" aria-hidden="true" tabindex="-1"></a> BrowserModule<span class="op">,</span></span>
<span id="cb7-5"><a href="#cb7-5" aria-hidden="true" tabindex="-1"></a> AppRoutingModule<span class="op">,</span></span>
<span id="cb7-6"><a href="#cb7-6" aria-hidden="true" tabindex="-1"></a> HttpClientModule<span class="op">,</span></span>
<span id="cb7-7"><a href="#cb7-7" aria-hidden="true" tabindex="-1"></a> ]<span class="op">,</span></span>
<span id="cb7-8"><a href="#cb7-8" aria-hidden="true" tabindex="-1"></a><span class="op">...</span></span></code></pre></div>
<h3 id="routing-module">Routing Module</h3>
<p><strong><em>app-routing.module.ts</em></strong> - Used to fetch data
from <code>TopicService</code> and send the data to HTML.</p>
<div class="sourceCode" id="cb8"><pre
class="sourceCode typescript"><code class="sourceCode typescript"><span id="cb8-1"><a href="#cb8-1" aria-hidden="true" tabindex="-1"></a><span class="im">import</span> { NgModule } <span class="im">from</span> <span class="st">'@angular/core'</span><span class="op">;</span></span>
<span id="cb8-2"><a href="#cb8-2" aria-hidden="true" tabindex="-1"></a><span class="im">import</span> { RouterModule<span class="op">,</span> Routes } <span class="im">from</span> <span class="st">'@angular/router'</span><span class="op">;</span></span>
<span id="cb8-3"><a href="#cb8-3" aria-hidden="true" tabindex="-1"></a><span class="im">import</span> { TopicComponent } <span class="im">from</span> <span class="st">'./components/topic/topic.component'</span><span class="op">;</span></span>
<span id="cb8-4"><a href="#cb8-4" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb8-5"><a href="#cb8-5" aria-hidden="true" tabindex="-1"></a><span class="kw">const</span> routes<span class="op">:</span> Routes <span class="op">=</span> [</span>
<span id="cb8-6"><a href="#cb8-6" aria-hidden="true" tabindex="-1"></a> { path<span class="op">:</span> <span class="st">'topics'</span><span class="op">,</span> component<span class="op">:</span> TopicComponent }<span class="op">,</span></span>
<span id="cb8-7"><a href="#cb8-7" aria-hidden="true" tabindex="-1"></a>]<span class="op">;</span></span>
<span id="cb8-8"><a href="#cb8-8" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb8-9"><a href="#cb8-9" aria-hidden="true" tabindex="-1"></a>@<span class="fu">NgModule</span>({</span>
<span id="cb8-10"><a href="#cb8-10" aria-hidden="true" tabindex="-1"></a> imports<span class="op">:</span> [RouterModule<span class="op">.</span><span class="fu">forRoot</span>(routes)]<span class="op">,</span></span>
<span id="cb8-11"><a href="#cb8-11" aria-hidden="true" tabindex="-1"></a> exports<span class="op">:</span> [RouterModule]</span>
<span id="cb8-12"><a href="#cb8-12" aria-hidden="true" tabindex="-1"></a>})</span>
<span id="cb8-13"><a href="#cb8-13" aria-hidden="true" tabindex="-1"></a><span class="im">export</span> <span class="kw">class</span> AppRoutingModule { }</span></code></pre></div>
<h2 id="services">Services</h2>
<ul>
<li>Generate command : <code>ng g s services/Topic</code></li>
</ul>
<p><strong><em>topic.service.ts</em></strong> - To Extract
<strong>Topics</strong> data from backend</p>
<div class="sourceCode" id="cb9"><pre
class="sourceCode typescript"><code class="sourceCode typescript"><span id="cb9-1"><a href="#cb9-1" aria-hidden="true" tabindex="-1"></a><span class="im">import</span> { HttpClient } <span class="im">from</span> <span class="st">'@angular/common/http'</span><span class="op">;</span></span>
<span id="cb9-2"><a href="#cb9-2" aria-hidden="true" tabindex="-1"></a><span class="im">import</span> { Injectable } <span class="im">from</span> <span class="st">'@angular/core'</span><span class="op">;</span></span>
<span id="cb9-3"><a href="#cb9-3" aria-hidden="true" tabindex="-1"></a><span class="im">import</span> { Observable } <span class="im">from</span> <span class="st">'rxjs'</span><span class="op">;</span></span>
<span id="cb9-4"><a href="#cb9-4" aria-hidden="true" tabindex="-1"></a><span class="im">import</span> { environment } <span class="im">from</span> <span class="st">'src/environments/environment'</span><span class="op">;</span></span>
<span id="cb9-5"><a href="#cb9-5" aria-hidden="true" tabindex="-1"></a><span class="im">import</span> { Topic } <span class="im">from</span> <span class="st">'../models/Topic'</span><span class="op">;</span></span>
<span id="cb9-6"><a href="#cb9-6" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb9-7"><a href="#cb9-7" aria-hidden="true" tabindex="-1"></a>@<span class="fu">Injectable</span>({</span>
<span id="cb9-8"><a href="#cb9-8" aria-hidden="true" tabindex="-1"></a> providedIn<span class="op">:</span> <span class="st">'root'</span><span class="op">,</span></span>
<span id="cb9-9"><a href="#cb9-9" aria-hidden="true" tabindex="-1"></a>})</span>
<span id="cb9-10"><a href="#cb9-10" aria-hidden="true" tabindex="-1"></a><span class="im">export</span> <span class="kw">class</span> TopicService {</span>
<span id="cb9-11"><a href="#cb9-11" aria-hidden="true" tabindex="-1"></a> <span class="kw">constructor</span>(<span class="kw">private</span> http<span class="op">:</span> HttpClient) {}</span>
<span id="cb9-12"><a href="#cb9-12" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb9-13"><a href="#cb9-13" aria-hidden="true" tabindex="-1"></a> <span class="kw">public</span> <span class="fu">getAllTopics</span>()<span class="op">:</span> Observable<span class="op"><</span>Topic[]<span class="op">></span> {</span>
<span id="cb9-14"><a href="#cb9-14" aria-hidden="true" tabindex="-1"></a> <span class="cf">return</span> <span class="kw">this</span><span class="op">.</span><span class="at">http</span><span class="op">.</span><span class="fu">get</span><span class="op"><</span>Topic[]<span class="op">></span>(<span class="vs">`</span><span class="sc">${</span>environment<span class="op">.</span><span class="at">apiServerUrl</span><span class="sc">}</span><span class="vs">/topics`</span>)<span class="op">;</span></span>
<span id="cb9-15"><a href="#cb9-15" aria-hidden="true" tabindex="-1"></a> }</span>
<span id="cb9-16"><a href="#cb9-16" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb9-17"><a href="#cb9-17" aria-hidden="true" tabindex="-1"></a> <span class="kw">public</span> <span class="fu">addTopic</span>(topic<span class="op">:</span> Topic)<span class="op">:</span> Observable<span class="op"><</span>Topic<span class="op">></span> {</span>
<span id="cb9-18"><a href="#cb9-18" aria-hidden="true" tabindex="-1"></a> <span class="cf">return</span> <span class="kw">this</span><span class="op">.</span><span class="at">http</span><span class="op">.</span><span class="fu">post</span><span class="op"><</span>Topic<span class="op">></span>(<span class="vs">`</span><span class="sc">${</span>environment<span class="op">.</span><span class="at">apiServerUrl</span><span class="sc">}</span><span class="vs">/topics`</span><span class="op">,</span> topic)<span class="op">;</span></span>
<span id="cb9-19"><a href="#cb9-19" aria-hidden="true" tabindex="-1"></a> }</span>
<span id="cb9-20"><a href="#cb9-20" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb9-21"><a href="#cb9-21" aria-hidden="true" tabindex="-1"></a> <span class="kw">public</span> <span class="fu">updateTopic</span>(topic<span class="op">:</span> Topic<span class="op">,</span> topicId<span class="op">:</span> <span class="dt">string</span>)<span class="op">:</span> Observable<span class="op"><</span>Topic<span class="op">></span> {</span>
<span id="cb9-22"><a href="#cb9-22" aria-hidden="true" tabindex="-1"></a> <span class="cf">return</span> <span class="kw">this</span><span class="op">.</span><span class="at">http</span><span class="op">.</span><span class="fu">put</span><span class="op"><</span>Topic<span class="op">></span>(<span class="vs">`</span><span class="sc">${</span>environment<span class="op">.</span><span class="at">apiServerUrl</span><span class="sc">}</span><span class="vs">/topics/</span><span class="sc">${</span>topicId<span class="sc">}</span><span class="vs">`</span><span class="op">,</span> topic)<span class="op">;</span></span>
<span id="cb9-23"><a href="#cb9-23" aria-hidden="true" tabindex="-1"></a> }</span>
<span id="cb9-24"><a href="#cb9-24" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb9-25"><a href="#cb9-25" aria-hidden="true" tabindex="-1"></a> <span class="kw">public</span> <span class="fu">deleteTopic</span>(topicId<span class="op">:</span> <span class="dt">string</span>)<span class="op">:</span> Observable<span class="op"><</span><span class="dt">void</span><span class="op">></span> {</span>
<span id="cb9-26"><a href="#cb9-26" aria-hidden="true" tabindex="-1"></a> <span class="cf">return</span> <span class="kw">this</span><span class="op">.</span><span class="at">http</span><span class="op">.</span><span class="fu">delete</span><span class="op"><</span><span class="dt">void</span><span class="op">></span>(<span class="vs">`</span><span class="sc">${</span>environment<span class="op">.</span><span class="at">apiServerUrl</span><span class="sc">}</span><span class="vs">/topics/</span><span class="sc">${</span>topicId<span class="sc">}</span><span class="vs">`</span>)<span class="op">;</span></span>
<span id="cb9-27"><a href="#cb9-27" aria-hidden="true" tabindex="-1"></a> }</span>
<span id="cb9-28"><a href="#cb9-28" aria-hidden="true" tabindex="-1"></a>}</span></code></pre></div>
<h2 id="models">Models</h2>
<p><strong><em>Topic.ts</em></strong> - Topic Interface</p>
<div class="sourceCode" id="cb10"><pre
class="sourceCode typescript"><code class="sourceCode typescript"><span id="cb10-1"><a href="#cb10-1" aria-hidden="true" tabindex="-1"></a><span class="im">export</span> <span class="kw">interface</span> Topic{</span>
<span id="cb10-2"><a href="#cb10-2" aria-hidden="true" tabindex="-1"></a> id<span class="op">:</span> <span class="dt">string</span><span class="op">;</span></span>
<span id="cb10-3"><a href="#cb10-3" aria-hidden="true" tabindex="-1"></a> name<span class="op">:</span> <span class="dt">string</span><span class="op">;</span></span>
<span id="cb10-4"><a href="#cb10-4" aria-hidden="true" tabindex="-1"></a> description<span class="op">:</span> <span class="dt">string</span><span class="op">;</span></span>
<span id="cb10-5"><a href="#cb10-5" aria-hidden="true" tabindex="-1"></a>}</span></code></pre></div>
<h2 id="components">Components</h2>
<h3 id="navbar---footer">Navbar - Footer</h3>
<p><strong><em>app.component.html</em></strong></p>
<div class="sourceCode" id="cb11"><pre
class="sourceCode html"><code class="sourceCode html"><span id="cb11-1"><a href="#cb11-1" aria-hidden="true" tabindex="-1"></a><span class="kw"><nav</span> <span class="er">class</span><span class="ot">=</span><span class="st">"navbar navbar-expand-lg navbar-dark bg-dark"</span><span class="kw">></span></span>
<span id="cb11-2"><a href="#cb11-2" aria-hidden="true" tabindex="-1"></a> <span class="kw"><a</span> <span class="er">class</span><span class="ot">=</span><span class="st">"navbar-brand"</span> <span class="er">routerLink</span><span class="ot">=</span><span class="st">"/"</span><span class="kw">><i</span> <span class="er">class</span><span class="ot">=</span><span class="st">"fa fa-book"</span><span class="kw">></i></span> CourseAPI Fullstack<span class="kw"></a></span></span>
<span id="cb11-3"><a href="#cb11-3" aria-hidden="true" tabindex="-1"></a> <span class="kw"><button</span> <span class="er">class</span><span class="ot">=</span><span class="st">"navbar-toggler"</span> <span class="er">type</span><span class="ot">=</span><span class="st">"button"</span> <span class="er">data-toggle</span><span class="ot">=</span><span class="st">"collapse"</span> <span class="er">data-target</span><span class="ot">=</span><span class="st">"#navbarSupportedContent"</span> <span class="er">aria-controls</span><span class="ot">=</span><span class="st">"navbarSupportedContent"</span> <span class="er">aria-expanded</span><span class="ot">=</span><span class="st">"false"</span> <span class="er">aria-label</span><span class="ot">=</span><span class="st">"Toggle navigation"</span><span class="kw">></span></span>
<span id="cb11-4"><a href="#cb11-4" aria-hidden="true" tabindex="-1"></a> <span class="kw"><span</span> <span class="er">class</span><span class="ot">=</span><span class="st">"navbar-toggler-icon"</span><span class="kw">></span></span></span>
<span id="cb11-5"><a href="#cb11-5" aria-hidden="true" tabindex="-1"></a> <span class="kw"></button></span></span>
<span id="cb11-6"><a href="#cb11-6" aria-hidden="true" tabindex="-1"></a> </span>
<span id="cb11-7"><a href="#cb11-7" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"collapse navbar-collapse"</span> <span class="er">id</span><span class="ot">=</span><span class="st">"navbarSupportedContent"</span><span class="kw">></span></span>
<span id="cb11-8"><a href="#cb11-8" aria-hidden="true" tabindex="-1"></a> <span class="kw"><ul</span> <span class="er">class</span><span class="ot">=</span><span class="st">"navbar-nav mr-auto"</span><span class="kw">></span></span>
<span id="cb11-9"><a href="#cb11-9" aria-hidden="true" tabindex="-1"></a> <span class="kw"><li</span> <span class="er">class</span><span class="ot">=</span><span class="st">"nav-item active"</span><span class="kw">></span></span>
<span id="cb11-10"><a href="#cb11-10" aria-hidden="true" tabindex="-1"></a> <span class="kw"><a</span> <span class="er">class</span><span class="ot">=</span><span class="st">"nav-link"</span> <span class="er">routerLink</span><span class="ot">=</span><span class="st">"/topics"</span><span class="kw">></span>All Topics <span class="kw"><span</span> <span class="er">class</span><span class="ot">=</span><span class="st">"sr-only"</span><span class="kw">></span>(current)<span class="kw"></span></a></span></span>
<span id="cb11-11"><a href="#cb11-11" aria-hidden="true" tabindex="-1"></a> <span class="kw"></li></span></span>
<span id="cb11-12"><a href="#cb11-12" aria-hidden="true" tabindex="-1"></a> <span class="kw"></ul></span></span>
<span id="cb11-13"><a href="#cb11-13" aria-hidden="true" tabindex="-1"></a> <span class="kw"><form</span> <span class="er">class</span><span class="ot">=</span><span class="st">"form-inline my-2 my-lg-0"</span><span class="kw">></span></span>
<span id="cb11-14"><a href="#cb11-14" aria-hidden="true" tabindex="-1"></a> <span class="kw"><input</span> <span class="er">class</span><span class="ot">=</span><span class="st">"form-control mr-sm-2"</span> <span class="er">type</span><span class="ot">=</span><span class="st">"search"</span> <span class="er">placeholder</span><span class="ot">=</span><span class="st">"Search Item..."</span> <span class="er">aria-label</span><span class="ot">=</span><span class="st">"Search"</span><span class="kw">></span></span>
<span id="cb11-15"><a href="#cb11-15" aria-hidden="true" tabindex="-1"></a> <span class="kw"></form></span></span>
<span id="cb11-16"><a href="#cb11-16" aria-hidden="true" tabindex="-1"></a> <span class="kw"></div></span></span>
<span id="cb11-17"><a href="#cb11-17" aria-hidden="true" tabindex="-1"></a><span class="kw"></nav></span></span>
<span id="cb11-18"><a href="#cb11-18" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb11-19"><a href="#cb11-19" aria-hidden="true" tabindex="-1"></a><span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"my-3"</span><span class="kw">></span></span>
<span id="cb11-20"><a href="#cb11-20" aria-hidden="true" tabindex="-1"></a> <span class="kw"><router-outlet></router-outlet></span></span>
<span id="cb11-21"><a href="#cb11-21" aria-hidden="true" tabindex="-1"></a><span class="kw"></div></span></span>
<span id="cb11-22"><a href="#cb11-22" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb11-23"><a href="#cb11-23" aria-hidden="true" tabindex="-1"></a><span class="kw"><footer</span> <span class="er">class</span><span class="ot">=</span><span class="st">"footer text-light"</span><span class="kw">></span></span>
<span id="cb11-24"><a href="#cb11-24" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"footer-container align-middle text-center"</span><span class="kw">></span></span>
<span id="cb11-25"><a href="#cb11-25" aria-hidden="true" tabindex="-1"></a> <span class="kw"><i></span>Made with <span class="kw"><i</span> <span class="er">class</span><span class="ot">=</span><span class="st">"fa fa-heart"</span><span class="kw">></i></span> by <span class="kw"><a</span> <span class="er">class</span><span class="ot">=</span><span class="st">"text-light"</span> <span class="er">href</span><span class="ot">=</span><span class="st">"https://swarnadeepghosh.github.io/"</span><span class="kw">></span>Swarnadeep<span class="kw"></a></i></span></span>
<span id="cb11-26"><a href="#cb11-26" aria-hidden="true" tabindex="-1"></a> <span class="kw"></div></span></span>
<span id="cb11-27"><a href="#cb11-27" aria-hidden="true" tabindex="-1"></a><span class="kw"></footer></span></span></code></pre></div>
<p><strong><em>app.component.css</em></strong></p>
<div class="sourceCode" id="cb12"><pre
class="sourceCode css"><code class="sourceCode css"><span id="cb12-1"><a href="#cb12-1" aria-hidden="true" tabindex="-1"></a><span class="fu">.footer</span>{</span>
<span id="cb12-2"><a href="#cb12-2" aria-hidden="true" tabindex="-1"></a> <span class="kw">position</span>: <span class="dv">fixed</span><span class="op">;</span></span>
<span id="cb12-3"><a href="#cb12-3" aria-hidden="true" tabindex="-1"></a> <span class="kw">bottom</span>: <span class="dv">0</span><span class="op">;</span></span>
<span id="cb12-4"><a href="#cb12-4" aria-hidden="true" tabindex="-1"></a> <span class="kw">width</span>: <span class="dv">100</span><span class="dt">%</span><span class="op">;</span></span>
<span id="cb12-5"><a href="#cb12-5" aria-hidden="true" tabindex="-1"></a> <span class="kw">height</span>: <span class="dv">40</span><span class="dt">px</span><span class="op">;</span></span>
<span id="cb12-6"><a href="#cb12-6" aria-hidden="true" tabindex="-1"></a> <span class="kw">background-color</span>: <span class="cn">#000000</span><span class="op">;</span></span>
<span id="cb12-7"><a href="#cb12-7" aria-hidden="true" tabindex="-1"></a>}</span>
<span id="cb12-8"><a href="#cb12-8" aria-hidden="true" tabindex="-1"></a><span class="fu">.footer-container</span>{</span>
<span id="cb12-9"><a href="#cb12-9" aria-hidden="true" tabindex="-1"></a> <span class="kw">padding</span>: <span class="dv">8</span><span class="dt">px</span><span class="op">;</span></span>
<span id="cb12-10"><a href="#cb12-10" aria-hidden="true" tabindex="-1"></a>}</span></code></pre></div>
<h3 id="topic-comp--get-all-topics">Topic Comp- GET all Topics</h3>
<ul>
<li><p>Generate command : <code>ng g c components/Topic</code></p></li>
<li><p>Open <a
href="https://www.bootdey.com/snippets/view/bs4-contact-cards">Bootdey -
bs4 contact cards</a> and copy HTML and CSS in appropriate
place.</p></li>
<li><p>app-<strong><em>routing.module.ts</em></strong></p>
<div class="sourceCode" id="cb13"><pre
class="sourceCode typescript"><code class="sourceCode typescript"><span id="cb13-1"><a href="#cb13-1" aria-hidden="true" tabindex="-1"></a><span class="kw">const</span> routes<span class="op">:</span> Routes <span class="op">=</span> [</span>
<span id="cb13-2"><a href="#cb13-2" aria-hidden="true" tabindex="-1"></a> { path<span class="op">:</span> <span class="st">''</span><span class="op">,</span> redirectTo<span class="op">:</span> <span class="st">'/topics'</span><span class="op">,</span> pathMatch<span class="op">:</span> <span class="st">'full'</span> }<span class="op">,</span></span>
<span id="cb13-3"><a href="#cb13-3" aria-hidden="true" tabindex="-1"></a> { path<span class="op">:</span> <span class="st">'topics'</span><span class="op">,</span> component<span class="op">:</span> TopicComponent }<span class="op">,</span></span>
<span id="cb13-4"><a href="#cb13-4" aria-hidden="true" tabindex="-1"></a> { path<span class="op">:</span> <span class="st">'**'</span><span class="op">,</span> component<span class="op">:</span> ErrorComponent }<span class="op">,</span></span>
<span id="cb13-5"><a href="#cb13-5" aria-hidden="true" tabindex="-1"></a>]<span class="op">;</span></span></code></pre></div></li>
<li><p><strong><em>topic.component.html</em></strong> - Copy HTML from
Bootdey to here, and added for loop, so that</p>
<div class="sourceCode" id="cb14"><pre
class="sourceCode html"><code class="sourceCode html"><span id="cb14-1"><a href="#cb14-1" aria-hidden="true" tabindex="-1"></a><span class="co"><!-- <link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css" rel="stylesheet"> --></span></span>
<span id="cb14-2"><a href="#cb14-2" aria-hidden="true" tabindex="-1"></a><span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"container"</span><span class="kw">></span></span>
<span id="cb14-3"><a href="#cb14-3" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb14-4"><a href="#cb14-4" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"row"</span><span class="kw">></span></span>
<span id="cb14-5"><a href="#cb14-5" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"col-md-8 my-3 text-center"</span><span class="kw">></span></span>
<span id="cb14-6"><a href="#cb14-6" aria-hidden="true" tabindex="-1"></a> <span class="kw"><h2></span>All Topics<span class="kw"></h2></span></span>
<span id="cb14-7"><a href="#cb14-7" aria-hidden="true" tabindex="-1"></a> <span class="kw"></div></span></span>
<span id="cb14-8"><a href="#cb14-8" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"col-md-4 my-3 text-center"</span><span class="kw">></span></span>
<span id="cb14-9"><a href="#cb14-9" aria-hidden="true" tabindex="-1"></a> <span class="kw"><a</span> <span class="er">class</span><span class="ot">=</span><span class="st">"btn mx-2 btn-primary"</span> <span class="er">data-placement</span><span class="ot">=</span><span class="st">"top"</span> <span class="er">data-original-title</span><span class="ot">=</span><span class="st">"Add"</span><span class="kw">></span> Add Topic <span class="kw"><i</span> <span class="er">class</span><span class="ot">=</span><span class="st">"fa fa-plus"</span><span class="kw">></i></span> <span class="kw"></a></span></span>
<span id="cb14-10"><a href="#cb14-10" aria-hidden="true" tabindex="-1"></a> <span class="kw"></div></span></span>
<span id="cb14-11"><a href="#cb14-11" aria-hidden="true" tabindex="-1"></a> <span class="kw"></div></span></span>
<span id="cb14-12"><a href="#cb14-12" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb14-13"><a href="#cb14-13" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"row"</span><span class="kw">></span></span>
<span id="cb14-14"><a href="#cb14-14" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">*ngFor</span><span class="ot">=</span><span class="st">"let topic of topics"</span> <span class="er">class</span><span class="ot">=</span><span class="st">"col-md-6 col-xl-3"</span><span class="kw">></span></span>
<span id="cb14-15"><a href="#cb14-15" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"card m-b-30"</span><span class="kw">></span></span>
<span id="cb14-16"><a href="#cb14-16" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"card-body row"</span><span class="kw">></span></span>
<span id="cb14-17"><a href="#cb14-17" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"col-6"</span><span class="kw">></span></span>
<span id="cb14-18"><a href="#cb14-18" aria-hidden="true" tabindex="-1"></a> <span class="kw"><a</span> <span class="er">href</span><span class="ot">=</span><span class="st">""</span><span class="kw">><img</span> <span class="er">src</span><span class="ot">=</span><span class="st">"https://springframework.guru/wp-content/uploads/2015/02/spring-framework-project-logo.png"</span> <span class="er">alt</span><span class="ot">=</span><span class="st">""</span> <span class="er">class</span><span class="ot">=</span><span class="st">"img-fluid rounded-circle w-60"</span><span class="kw">></a></span></span>
<span id="cb14-19"><a href="#cb14-19" aria-hidden="true" tabindex="-1"></a> <span class="kw"></div></span></span>
<span id="cb14-20"><a href="#cb14-20" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"col-6 card-title align-self-center mb-0"</span><span class="kw">></span></span>
<span id="cb14-21"><a href="#cb14-21" aria-hidden="true" tabindex="-1"></a> <span class="kw"><h5></span>{{topic.name}}<span class="kw"></h5></span></span>
<span id="cb14-22"><a href="#cb14-22" aria-hidden="true" tabindex="-1"></a> <span class="co"><!-- <p class="m-0">ID : {{topic.id}}</p> --></span></span>
<span id="cb14-23"><a href="#cb14-23" aria-hidden="true" tabindex="-1"></a> <span class="kw"></div></span></span>
<span id="cb14-24"><a href="#cb14-24" aria-hidden="true" tabindex="-1"></a> <span class="kw"></div></span></span>
<span id="cb14-25"><a href="#cb14-25" aria-hidden="true" tabindex="-1"></a> <span class="kw"><ul</span> <span class="er">class</span><span class="ot">=</span><span class="st">"list-group list-group-flush"</span><span class="kw">></span></span>
<span id="cb14-26"><a href="#cb14-26" aria-hidden="true" tabindex="-1"></a> <span class="co"><!-- <li class="list-group-item"><i class="fa fa-envelope float-right"></i>Email : <a href="#">PaulGoyette@gmail.com</a></li> --></span></span>
<span id="cb14-27"><a href="#cb14-27" aria-hidden="true" tabindex="-1"></a> <span class="kw"><li</span> <span class="er">class</span><span class="ot">=</span><span class="st">"list-group-item"</span><span class="kw">><i</span> <span class="er">class</span><span class="ot">=</span><span class="st">"fa fa-user float-right"</span><span class="kw">></i></span>ID : <span class="kw"><strong></span>{{topic.id}}<span class="kw"></strong></li></span></span>
<span id="cb14-28"><a href="#cb14-28" aria-hidden="true" tabindex="-1"></a> <span class="kw"><li</span> <span class="er">class</span><span class="ot">=</span><span class="st">"list-group-item"</span><span class="kw">><i</span> <span class="er">class</span><span class="ot">=</span><span class="st">"fa fa-code float-right"</span><span class="kw">></i></span>{{topic.description}}<span class="kw"></li></span></span>
<span id="cb14-29"><a href="#cb14-29" aria-hidden="true" tabindex="-1"></a> <span class="kw"></ul></span></span>
<span id="cb14-30"><a href="#cb14-30" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"card-body"</span><span class="kw">></span></span>
<span id="cb14-31"><a href="#cb14-31" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"float-right btn-group btn-group-sm"</span><span class="kw">></span></span>
<span id="cb14-32"><a href="#cb14-32" aria-hidden="true" tabindex="-1"></a> <span class="kw"><a</span> <span class="er">href</span><span class="ot">=</span><span class="st">"#"</span> <span class="er">class</span><span class="ot">=</span><span class="st">"btn mx-2 btn-primary tooltips"</span> <span class="er">data-placement</span><span class="ot">=</span><span class="st">"top"</span> <span class="er">data-toggle</span><span class="ot">=</span><span class="st">"tooltip"</span> <span class="er">data-original-title</span><span class="ot">=</span><span class="st">"Edit"</span><span class="kw">><i</span> <span class="er">class</span><span class="ot">=</span><span class="st">"fa fa-pencil"</span><span class="kw">></i></span> <span class="kw"></a></span></span>
<span id="cb14-33"><a href="#cb14-33" aria-hidden="true" tabindex="-1"></a> <span class="kw"><a</span> <span class="er">href</span><span class="ot">=</span><span class="st">"#"</span> <span class="er">class</span><span class="ot">=</span><span class="st">"btn btn-danger tooltips"</span> <span class="er">data-placement</span><span class="ot">=</span><span class="st">"top"</span> <span class="er">data-toggle</span><span class="ot">=</span><span class="st">"tooltip"</span> <span class="er">data-original-title</span><span class="ot">=</span><span class="st">"Delete"</span><span class="kw">><i</span> <span class="er">class</span><span class="ot">=</span><span class="st">"fa fa-times"</span><span class="kw">></i></a></span></span>
<span id="cb14-34"><a href="#cb14-34" aria-hidden="true" tabindex="-1"></a> <span class="kw"></div></span></span>
<span id="cb14-35"><a href="#cb14-35" aria-hidden="true" tabindex="-1"></a> <span class="kw"><ul</span> <span class="er">class</span><span class="ot">=</span><span class="st">"social-links list-inline mb-0"</span><span class="kw">></span></span>
<span id="cb14-36"><a href="#cb14-36" aria-hidden="true" tabindex="-1"></a> <span class="kw"><button</span> <span class="er">type</span><span class="ot">=</span><span class="st">"button"</span> <span class="er">class</span><span class="ot">=</span><span class="st">"btn btn-outline-success list-inline-item"</span><span class="kw">></span>Courses <span class="kw"><i</span> <span class="er">class</span><span class="ot">=</span><span class="st">"fa fa-hand-o-right"</span><span class="kw">></i></button></span></span>
<span id="cb14-37"><a href="#cb14-37" aria-hidden="true" tabindex="-1"></a> <span class="co"><!-- <li class="list-inline-item"><a title="" data-placement="top" data-toggle="tooltip" class="tooltips" href="" data-original-title="Facebook"><i class="fa fa-facebook-f"></i></a></li></span></span>
<span id="cb14-38"><a href="#cb14-38" aria-hidden="true" tabindex="-1"></a><span class="co"> </ul></span></span>
<span id="cb14-39"><a href="#cb14-39" aria-hidden="true" tabindex="-1"></a><span class="co"> </div></span></span>
<span id="cb14-40"><a href="#cb14-40" aria-hidden="true" tabindex="-1"></a><span class="co"> </div></span></span>
<span id="cb14-41"><a href="#cb14-41" aria-hidden="true" tabindex="-1"></a><span class="co"> </div></span></span>
<span id="cb14-42"><a href="#cb14-42" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb14-43"><a href="#cb14-43" aria-hidden="true" tabindex="-1"></a><span class="co"> </div></span></span>
<span id="cb14-44"><a href="#cb14-44" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb14-45"><a href="#cb14-45" aria-hidden="true" tabindex="-1"></a><span class="co"> <!</span><span class="er">--</span><span class="co"> Notification for NO item --></span></span>
<span id="cb14-46"><a href="#cb14-46" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">*ngIf</span><span class="ot">=</span><span class="st">"topics?.length == 0"</span> <span class="er">class</span><span class="ot">=</span><span class="st">"col-lg-12 col-md-12 col-xl-12"</span><span class="kw">></span></span>
<span id="cb14-47"><a href="#cb14-47" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"alert alert-info"</span> <span class="er">role</span><span class="ot">=</span><span class="st">"alert"</span><span class="kw">></span></span>
<span id="cb14-48"><a href="#cb14-48" aria-hidden="true" tabindex="-1"></a> <span class="kw"><h4</span> <span class="er">class</span><span class="ot">=</span><span class="st">"alert-heading"</span><span class="kw">></span>NO TOPICS !!<span class="kw"></h4></span></span>
<span id="cb14-49"><a href="#cb14-49" aria-hidden="true" tabindex="-1"></a> <span class="kw"><p></span>No Topics were found.<span class="kw"></p></span></span>
<span id="cb14-50"><a href="#cb14-50" aria-hidden="true" tabindex="-1"></a> <span class="kw"></div></span></span>
<span id="cb14-51"><a href="#cb14-51" aria-hidden="true" tabindex="-1"></a> <span class="kw"></div></span></span>
<span id="cb14-52"><a href="#cb14-52" aria-hidden="true" tabindex="-1"></a><span class="kw"></div></span></span></code></pre></div></li>
<li><p><strong><em>styles.css</em></strong> - Copy CSS from Bootdey to
here.</p>
<div class="sourceCode" id="cb15"><pre
class="sourceCode css"><code class="sourceCode css"><span id="cb15-1"><a href="#cb15-1" aria-hidden="true" tabindex="-1"></a><span class="co">/* You can add global styles to this file, and also import other style files */</span></span>
<span id="cb15-2"><a href="#cb15-2" aria-hidden="true" tabindex="-1"></a><span class="co">/* @import url('https://cdn.jsdelivr.net/npm/bootstrap@4.6.1/dist/css/bootstrap.min.css'); */</span></span>
<span id="cb15-3"><a href="#cb15-3" aria-hidden="true" tabindex="-1"></a><span class="im">@import</span> <span class="fu">url(</span><span class="st">'https://maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css'</span><span class="fu">)</span><span class="op">;</span></span>
<span id="cb15-4"><a href="#cb15-4" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb15-5"><a href="#cb15-5" aria-hidden="true" tabindex="-1"></a>body{</span>
<span id="cb15-6"><a href="#cb15-6" aria-hidden="true" tabindex="-1"></a> <span class="kw">margin-top</span>:<span class="dv">20</span><span class="dt">px</span><span class="op">;</span></span>
<span id="cb15-7"><a href="#cb15-7" aria-hidden="true" tabindex="-1"></a> <span class="kw">background</span>: <span class="cn">#ebebeb</span><span class="op">;</span></span>
<span id="cb15-8"><a href="#cb15-8" aria-hidden="true" tabindex="-1"></a> <span class="kw">background-color</span>: <span class="cn">#d1d1d1</span><span class="op">;</span></span>
<span id="cb15-9"><a href="#cb15-9" aria-hidden="true" tabindex="-1"></a>}</span>
<span id="cb15-10"><a href="#cb15-10" aria-hidden="true" tabindex="-1"></a><span class="fu">.card</span> {</span>
<span id="cb15-11"><a href="#cb15-11" aria-hidden="true" tabindex="-1"></a> <span class="kw">border</span>: <span class="dv">none</span><span class="op">;</span></span>
<span id="cb15-12"><a href="#cb15-12" aria-hidden="true" tabindex="-1"></a> <span class="kw">-webkit-box-shadow</span>: <span class="dv">0</span> <span class="dv">1</span><span class="dt">px</span> <span class="dv">2</span><span class="dt">px</span> <span class="dv">0</span> <span class="fu">rgba(</span><span class="dv">0</span><span class="op">,</span><span class="dv">0</span><span class="op">,</span><span class="dv">0</span><span class="op">,</span><span class="dv">.05</span><span class="fu">)</span><span class="op">;</span></span>
<span id="cb15-13"><a href="#cb15-13" aria-hidden="true" tabindex="-1"></a> <span class="kw">box-shadow</span>: <span class="dv">0</span> <span class="dv">1</span><span class="dt">px</span> <span class="dv">2</span><span class="dt">px</span> <span class="dv">0</span> <span class="fu">rgba(</span><span class="dv">0</span><span class="op">,</span><span class="dv">0</span><span class="op">,</span><span class="dv">0</span><span class="op">,</span><span class="dv">.05</span><span class="fu">)</span><span class="op">;</span></span>
<span id="cb15-14"><a href="#cb15-14" aria-hidden="true" tabindex="-1"></a> <span class="kw">margin-bottom</span>: <span class="dv">30</span><span class="dt">px</span><span class="op">;</span></span>
<span id="cb15-15"><a href="#cb15-15" aria-hidden="true" tabindex="-1"></a>}</span>
<span id="cb15-16"><a href="#cb15-16" aria-hidden="true" tabindex="-1"></a><span class="fu">.w-60</span> {</span>
<span id="cb15-17"><a href="#cb15-17" aria-hidden="true" tabindex="-1"></a> <span class="kw">width</span>: <span class="dv">60</span><span class="dt">px</span><span class="op">;</span></span>
<span id="cb15-18"><a href="#cb15-18" aria-hidden="true" tabindex="-1"></a>}</span>
<span id="cb15-19"><a href="#cb15-19" aria-hidden="true" tabindex="-1"></a>h1<span class="op">,</span> h2<span class="op">,</span> h3<span class="op">,</span> h4<span class="op">,</span> h5<span class="op">,</span> h6 {</span>
<span id="cb15-20"><a href="#cb15-20" aria-hidden="true" tabindex="-1"></a> <span class="kw">margin</span>: <span class="dv">0</span> <span class="dv">0</span> <span class="dv">10</span><span class="dt">px</span><span class="op">;</span></span>
<span id="cb15-21"><a href="#cb15-21" aria-hidden="true" tabindex="-1"></a> <span class="kw">font-weight</span>: <span class="dv">600</span><span class="op">;</span></span>
<span id="cb15-22"><a href="#cb15-22" aria-hidden="true" tabindex="-1"></a>}</span>
<span id="cb15-23"><a href="#cb15-23" aria-hidden="true" tabindex="-1"></a><span class="fu">.social-links</span> li a {</span>
<span id="cb15-24"><a href="#cb15-24" aria-hidden="true" tabindex="-1"></a> <span class="kw">-webkit-border-radius</span>: <span class="dv">50</span><span class="dt">%</span><span class="op">;</span></span>
<span id="cb15-25"><a href="#cb15-25" aria-hidden="true" tabindex="-1"></a> <span class="kw">background-color</span>: <span class="fu">rgba(</span><span class="dv">89</span><span class="op">,</span><span class="dv">206</span><span class="op">,</span><span class="dv">181</span><span class="op">,</span><span class="dv">.85</span><span class="fu">)</span><span class="op">;</span></span>
<span id="cb15-26"><a href="#cb15-26" aria-hidden="true" tabindex="-1"></a> <span class="kw">border-radius</span>: <span class="dv">50</span><span class="dt">%</span><span class="op">;</span></span>
<span id="cb15-27"><a href="#cb15-27" aria-hidden="true" tabindex="-1"></a> <span class="kw">color</span>: <span class="cn">#fff</span><span class="op">;</span></span>
<span id="cb15-28"><a href="#cb15-28" aria-hidden="true" tabindex="-1"></a> <span class="kw">display</span>: <span class="dv">inline-block</span><span class="op">;</span></span>
<span id="cb15-29"><a href="#cb15-29" aria-hidden="true" tabindex="-1"></a> <span class="kw">height</span>: <span class="dv">30</span><span class="dt">px</span><span class="op">;</span></span>
<span id="cb15-30"><a href="#cb15-30" aria-hidden="true" tabindex="-1"></a> <span class="kw">line-height</span>: <span class="dv">30</span><span class="dt">px</span><span class="op">;</span></span>
<span id="cb15-31"><a href="#cb15-31" aria-hidden="true" tabindex="-1"></a> <span class="kw">text-align</span>: <span class="dv">center</span><span class="op">;</span></span>
<span id="cb15-32"><a href="#cb15-32" aria-hidden="true" tabindex="-1"></a> <span class="kw">width</span>: <span class="dv">30</span><span class="dt">px</span><span class="op">;</span></span>
<span id="cb15-33"><a href="#cb15-33" aria-hidden="true" tabindex="-1"></a> <span class="kw">font-size</span>: <span class="dv">12</span><span class="dt">px</span><span class="op">;</span></span>
<span id="cb15-34"><a href="#cb15-34" aria-hidden="true" tabindex="-1"></a>}</span>
<span id="cb15-35"><a href="#cb15-35" aria-hidden="true" tabindex="-1"></a>a {</span>
<span id="cb15-36"><a href="#cb15-36" aria-hidden="true" tabindex="-1"></a> <span class="kw">color</span>: <span class="cn">#707070</span><span class="op">;</span></span>
<span id="cb15-37"><a href="#cb15-37" aria-hidden="true" tabindex="-1"></a>}</span></code></pre></div></li>
<li><p><strong><em>topic.component.ts</em></strong> - Used to fetch data
from <code>TopicService</code> and send the data to HTML.</p>
<div class="sourceCode" id="cb16"><pre
class="sourceCode typescript"><code class="sourceCode typescript"><span id="cb16-1"><a href="#cb16-1" aria-hidden="true" tabindex="-1"></a><span class="im">import</span> { HttpErrorResponse } <span class="im">from</span> <span class="st">'@angular/common/http'</span><span class="op">;</span></span>
<span id="cb16-2"><a href="#cb16-2" aria-hidden="true" tabindex="-1"></a><span class="im">import</span> { Topic } <span class="im">from</span> <span class="st">'src/app/models/Topic'</span><span class="op">;</span></span>
<span id="cb16-3"><a href="#cb16-3" aria-hidden="true" tabindex="-1"></a><span class="im">import</span> { TopicService } <span class="im">from</span> <span class="st">'src/app/services/topic.service'</span><span class="op">;</span></span>
<span id="cb16-4"><a href="#cb16-4" aria-hidden="true" tabindex="-1"></a><span class="op">...</span></span>
<span id="cb16-5"><a href="#cb16-5" aria-hidden="true" tabindex="-1"></a><span class="im">export</span> <span class="kw">class</span> TopicComponent <span class="kw">implements</span> OnInit {</span>
<span id="cb16-6"><a href="#cb16-6" aria-hidden="true" tabindex="-1"></a> <span class="kw">public</span> topics<span class="op">:</span> Topic[] <span class="op">=</span> []<span class="op">;</span></span>
<span id="cb16-7"><a href="#cb16-7" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb16-8"><a href="#cb16-8" aria-hidden="true" tabindex="-1"></a> <span class="kw">constructor</span>(<span class="kw">private</span> topicService<span class="op">:</span> TopicService) {}</span>
<span id="cb16-9"><a href="#cb16-9" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb16-10"><a href="#cb16-10" aria-hidden="true" tabindex="-1"></a> <span class="fu">ngOnInit</span>()<span class="op">:</span> <span class="dt">void</span> {</span>
<span id="cb16-11"><a href="#cb16-11" aria-hidden="true" tabindex="-1"></a> <span class="kw">this</span><span class="op">.</span><span class="fu">getTopics</span>()<span class="op">;</span></span>
<span id="cb16-12"><a href="#cb16-12" aria-hidden="true" tabindex="-1"></a> }</span>
<span id="cb16-13"><a href="#cb16-13" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb16-14"><a href="#cb16-14" aria-hidden="true" tabindex="-1"></a> <span class="kw">public</span> <span class="fu">getTopics</span>()<span class="op">:</span> <span class="dt">void</span> {</span>
<span id="cb16-15"><a href="#cb16-15" aria-hidden="true" tabindex="-1"></a> <span class="kw">this</span><span class="op">.</span><span class="at">topicService</span><span class="op">.</span><span class="fu">getAllTopics</span>()<span class="op">.</span><span class="fu">subscribe</span>(</span>
<span id="cb16-16"><a href="#cb16-16" aria-hidden="true" tabindex="-1"></a> (response<span class="op">:</span> Topic[]) <span class="kw">=></span> { <span class="kw">this</span><span class="op">.</span><span class="at">topics</span> <span class="op">=</span> response<span class="op">;</span> }<span class="op">,</span> </span>
<span id="cb16-17"><a href="#cb16-17" aria-hidden="true" tabindex="-1"></a> (error<span class="op">:</span> HttpErrorResponse) <span class="kw">=></span> { <span class="bu">console</span><span class="op">.</span><span class="fu">log</span>(error<span class="op">.</span><span class="at">message</span>)<span class="op">;</span> }</span>
<span id="cb16-18"><a href="#cb16-18" aria-hidden="true" tabindex="-1"></a> )<span class="op">;</span></span>
<span id="cb16-19"><a href="#cb16-19" aria-hidden="true" tabindex="-1"></a> }</span>
<span id="cb16-20"><a href="#cb16-20" aria-hidden="true" tabindex="-1"></a>}</span></code></pre></div></li>
</ul>
<p><strong>Snapshot after adding Header, Footer and Get all
Topics</strong></p>
<p><img src="images/snapshot-1.png" style="zoom:67%;" /></p>
<h3 id="modal-addition-in-topic">Modal Addition in Topic</h3>
<ul>
<li><p><strong>index.html</strong> - Popper js will be required for
Modals</p>
<div class="sourceCode" id="cb17"><pre
class="sourceCode html"><code class="sourceCode html"><span id="cb17-1"><a href="#cb17-1" aria-hidden="true" tabindex="-1"></a> <span class="kw"><script</span> <span class="er">src</span><span class="ot">=</span><span class="st">"https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js"</span><span class="kw">></script></span></span></code></pre></div></li>
<li><p><strong><em>topic.component.ts</em></strong> -
<code>onOpenModal()</code> will be called for each Add/ Update/ Delete
operation and this will decide which Modal to choose as per
<code>data-target</code>.</p>
<div class="sourceCode" id="cb18"><pre
class="sourceCode typescript"><code class="sourceCode typescript"><span id="cb18-1"><a href="#cb18-1" aria-hidden="true" tabindex="-1"></a><span class="kw">public</span> updateTopic<span class="op">:</span> Topic<span class="op">;</span></span>
<span id="cb18-2"><a href="#cb18-2" aria-hidden="true" tabindex="-1"></a><span class="kw">public</span> deleteTopic<span class="op">:</span> Topic<span class="op">;</span></span>
<span id="cb18-3"><a href="#cb18-3" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb18-4"><a href="#cb18-4" aria-hidden="true" tabindex="-1"></a><span class="kw">public</span> <span class="fu">onOpenModal</span>(topic<span class="op">:</span> Topic<span class="op">,</span> mode<span class="op">:</span> <span class="dt">string</span>)<span class="op">:</span> <span class="dt">void</span> {</span>
<span id="cb18-5"><a href="#cb18-5" aria-hidden="true" tabindex="-1"></a> <span class="kw">const</span> container <span class="op">=</span> <span class="bu">document</span><span class="op">.</span><span class="fu">getElementById</span>(<span class="st">'main-container'</span>)<span class="op">;</span></span>
<span id="cb18-6"><a href="#cb18-6" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb18-7"><a href="#cb18-7" aria-hidden="true" tabindex="-1"></a><span class="co">// Basically we will create below button through JavaScript</span></span>
<span id="cb18-8"><a href="#cb18-8" aria-hidden="true" tabindex="-1"></a><span class="co">//<button type="button" class="btn btn-primary" data-toggle="modal" data-target="#exampleModal">Launch modal</button></span></span>
<span id="cb18-9"><a href="#cb18-9" aria-hidden="true" tabindex="-1"></a><span class="kw">const</span> button <span class="op">=</span> <span class="bu">document</span><span class="op">.</span><span class="fu">createElement</span>(<span class="st">'button'</span>)<span class="op">;</span></span>
<span id="cb18-10"><a href="#cb18-10" aria-hidden="true" tabindex="-1"></a>button<span class="op">.</span><span class="at">type</span> <span class="op">=</span> <span class="st">'button'</span><span class="op">;</span> <span class="co">// To change default button type from Submit.</span></span>
<span id="cb18-11"><a href="#cb18-11" aria-hidden="true" tabindex="-1"></a>button<span class="op">.</span><span class="at">style</span><span class="op">.</span><span class="at">display</span> <span class="op">=</span> <span class="st">'none'</span><span class="op">;</span> <span class="co">// Hide the button in UI, we will use already created button for Add / delete / update</span></span>
<span id="cb18-12"><a href="#cb18-12" aria-hidden="true" tabindex="-1"></a>button<span class="op">.</span><span class="fu">setAttribute</span>(<span class="st">'data-toggle'</span><span class="op">,</span> <span class="st">'modal'</span>)<span class="op">;</span></span>
<span id="cb18-13"><a href="#cb18-13" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb18-14"><a href="#cb18-14" aria-hidden="true" tabindex="-1"></a><span class="co">// Setting data Target as per mode</span></span>
<span id="cb18-15"><a href="#cb18-15" aria-hidden="true" tabindex="-1"></a><span class="cf">if</span> (mode <span class="op">===</span> <span class="st">'add'</span>) {</span>
<span id="cb18-16"><a href="#cb18-16" aria-hidden="true" tabindex="-1"></a> button<span class="op">.</span><span class="fu">setAttribute</span>(<span class="st">'data-target'</span><span class="op">,</span> <span class="st">'#addTopicModal'</span>)<span class="op">;</span></span>
<span id="cb18-17"><a href="#cb18-17" aria-hidden="true" tabindex="-1"></a> <span class="bu">console</span><span class="op">.</span><span class="fu">log</span>(<span class="st">'Add called'</span>)<span class="op">;</span></span>
<span id="cb18-18"><a href="#cb18-18" aria-hidden="true" tabindex="-1"></a>}</span>
<span id="cb18-19"><a href="#cb18-19" aria-hidden="true" tabindex="-1"></a><span class="cf">if</span> (mode <span class="op">===</span> <span class="st">'update'</span>) {</span>
<span id="cb18-20"><a href="#cb18-20" aria-hidden="true" tabindex="-1"></a> <span class="kw">this</span><span class="op">.</span><span class="at">updateTopic</span> <span class="op">=</span> topic<span class="op">;</span></span>
<span id="cb18-21"><a href="#cb18-21" aria-hidden="true" tabindex="-1"></a> button<span class="op">.</span><span class="fu">setAttribute</span>(<span class="st">'data-target'</span><span class="op">,</span> <span class="st">'#updateTopicModal'</span>)<span class="op">;</span></span>
<span id="cb18-22"><a href="#cb18-22" aria-hidden="true" tabindex="-1"></a> <span class="bu">console</span><span class="op">.</span><span class="fu">log</span>(<span class="st">'Update called'</span>)<span class="op">;</span></span>
<span id="cb18-23"><a href="#cb18-23" aria-hidden="true" tabindex="-1"></a>}</span>
<span id="cb18-24"><a href="#cb18-24" aria-hidden="true" tabindex="-1"></a><span class="cf">if</span> (mode <span class="op">===</span> <span class="st">'delete'</span>) {</span>
<span id="cb18-25"><a href="#cb18-25" aria-hidden="true" tabindex="-1"></a> <span class="kw">this</span><span class="op">.</span><span class="at">deleteTopic</span> <span class="op">=</span> topic<span class="op">;</span></span>
<span id="cb18-26"><a href="#cb18-26" aria-hidden="true" tabindex="-1"></a> button<span class="op">.</span><span class="fu">setAttribute</span>(<span class="st">'data-target'</span><span class="op">,</span> <span class="st">'#deleteTopicModal'</span>)<span class="op">;</span></span>
<span id="cb18-27"><a href="#cb18-27" aria-hidden="true" tabindex="-1"></a> <span class="bu">console</span><span class="op">.</span><span class="fu">log</span>(<span class="st">'delete called'</span>)<span class="op">;</span></span>
<span id="cb18-28"><a href="#cb18-28" aria-hidden="true" tabindex="-1"></a>}</span>
<span id="cb18-29"><a href="#cb18-29" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb18-30"><a href="#cb18-30" aria-hidden="true" tabindex="-1"></a>container<span class="op">?.</span><span class="fu">appendChild</span>(button)<span class="op">;</span> <span class="co">// Adding the button to the view, so that it can do its job</span></span>
<span id="cb18-31"><a href="#cb18-31" aria-hidden="true" tabindex="-1"></a>button<span class="op">.</span><span class="fu">click</span>()<span class="op">;</span></span>
<span id="cb18-32"><a href="#cb18-32" aria-hidden="true" tabindex="-1"></a>}</span></code></pre></div></li>
<li><p><strong><em>topic.component.html</em></strong> - calling
<code>onOpenModal()</code>, which will decide which Modal to choose as
per <code>data-target</code>.</p>
<div class="sourceCode" id="cb19"><pre
class="sourceCode html"><code class="sourceCode html"><span id="cb19-1"><a href="#cb19-1" aria-hidden="true" tabindex="-1"></a><span class="co"><!-- Buttons from where onOpenModal() will be called--></span></span>
<span id="cb19-2"><a href="#cb19-2" aria-hidden="true" tabindex="-1"></a><span class="kw"><a</span> <span class="er">(click)</span><span class="ot">=</span><span class="st">"onOpenModal(null, 'add')"</span> <span class="er">class</span><span class="ot">=</span><span class="st">"btn mx-2 btn-primary"</span> <span class="er">data-placement</span><span class="ot">=</span><span class="st">"top"</span> <span class="er">data-original-title</span><span class="ot">=</span><span class="st">"Add"</span><span class="kw">></span> Add Topic <span class="kw"><i</span> <span class="er">class</span><span class="ot">=</span><span class="st">"fa fa-plus"</span><span class="kw">></i></span> <span class="kw"></a></span> ... </span>
<span id="cb19-3"><a href="#cb19-3" aria-hidden="true" tabindex="-1"></a><span class="kw"><a</span> <span class="er">(click)</span><span class="ot">=</span><span class="st">"onOpenModal(topic, 'update')"</span> <span class="er">class</span><span class="ot">=</span><span class="st">"btn mx-2 btn-primary tooltips"</span> <span class="er">data-placement</span><span class="ot">=</span><span class="st">"top"</span> <span class="er">data-original-title</span><span class="ot">=</span><span class="st">"Edit"</span><span class="kw">><i</span> <span class="er">class</span><span class="ot">=</span><span class="st">"fa fa-pencil"</span><span class="kw">></i></span> <span class="kw"></a></span> ...</span>
<span id="cb19-4"><a href="#cb19-4" aria-hidden="true" tabindex="-1"></a><span class="kw"><a</span> <span class="er">(click)</span><span class="ot">=</span><span class="st">"onOpenModal(topic, 'delete')"</span> <span class="er">class</span><span class="ot">=</span><span class="st">"btn btn-danger tooltips"</span> <span class="er">data-placement</span><span class="ot">=</span><span class="st">"top"</span> <span class="er">data-original-title</span><span class="ot">=</span><span class="st">"Delete"</span><span class="kw">><i</span> <span class="er">class</span><span class="ot">=</span><span class="st">"fa fa-times"</span><span class="kw">></i></a></span> ...</span>
<span id="cb19-5"><a href="#cb19-5" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb19-6"><a href="#cb19-6" aria-hidden="true" tabindex="-1"></a><span class="co"><!-- Modals --></span></span>
<span id="cb19-7"><a href="#cb19-7" aria-hidden="true" tabindex="-1"></a><span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"modal fade"</span> <span class="er">id</span><span class="ot">=</span><span class="st">"addTopicModal"</span> <span class="er">tabindex</span><span class="ot">=</span><span class="st">"-1"</span> <span class="er">role</span><span class="ot">=</span><span class="st">"dialog"</span> <span class="er">aria-labelledby</span><span class="ot">=</span><span class="st">"addModalLabel"</span> <span class="er">aria-hidden</span><span class="ot">=</span><span class="st">"true"</span><span class="kw">></span> ... <span class="kw"></div></span></span>
<span id="cb19-8"><a href="#cb19-8" aria-hidden="true" tabindex="-1"></a><span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"modal fade"</span> <span class="er">id</span><span class="ot">=</span><span class="st">"updateTopicModal"</span> <span class="er">tabindex</span><span class="ot">=</span><span class="st">"-1"</span> <span class="er">role</span><span class="ot">=</span><span class="st">"dialog"</span> <span class="er">aria-labelledby</span><span class="ot">=</span><span class="st">"updateModalLabel"</span> <span class="er">aria-hidden</span><span class="ot">=</span><span class="st">"true"</span><span class="kw">></span> ... <span class="kw"></div></span></span>
<span id="cb19-9"><a href="#cb19-9" aria-hidden="true" tabindex="-1"></a><span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"modal fade"</span> <span class="er">id</span><span class="ot">=</span><span class="st">"deleteTopicModal"</span> <span class="er">tabindex</span><span class="ot">=</span><span class="st">"-1"</span> <span class="er">role</span><span class="ot">=</span><span class="st">"dialog"</span> <span class="er">aria-labelledby</span><span class="ot">=</span><span class="st">"deleteModalLabel"</span> <span class="er">aria-hidden</span><span class="ot">=</span><span class="st">"true"</span><span class="kw">></span> ... <span class="kw"></div></span></span></code></pre></div></li>
<li><p><strong>app.module.ts</strong> - Adding <code>FormsModule</code>
for Modals</p>
<div class="sourceCode" id="cb20"><pre
class="sourceCode typescript"><code class="sourceCode typescript"><span id="cb20-1"><a href="#cb20-1" aria-hidden="true" tabindex="-1"></a><span class="im">import</span> { FormsModule } <span class="im">from</span> <span class="st">'@angular/forms'</span><span class="op">;</span></span>
<span id="cb20-2"><a href="#cb20-2" aria-hidden="true" tabindex="-1"></a>imports<span class="op">:</span> [</span>
<span id="cb20-3"><a href="#cb20-3" aria-hidden="true" tabindex="-1"></a> <span class="op">...</span></span>
<span id="cb20-4"><a href="#cb20-4" aria-hidden="true" tabindex="-1"></a> FormsModule</span>
<span id="cb20-5"><a href="#cb20-5" aria-hidden="true" tabindex="-1"></a>]<span class="op">,</span></span></code></pre></div></li>
</ul>
<h3 id="add-modal-for-topic">ADD Modal for Topic</h3>
<p><strong><em>topic.component.ts</em></strong></p>
<div class="sourceCode" id="cb21"><pre
class="sourceCode typescript"><code class="sourceCode typescript"><span id="cb21-1"><a href="#cb21-1" aria-hidden="true" tabindex="-1"></a> <span class="kw">public</span> <span class="fu">onAddTopic</span>(addForm<span class="op">:</span> NgForm)<span class="op">:</span> <span class="dt">void</span> {</span>
<span id="cb21-2"><a href="#cb21-2" aria-hidden="true" tabindex="-1"></a> <span class="bu">document</span><span class="op">.</span><span class="fu">getElementById</span>(<span class="st">'add-topic-form'</span>)<span class="op">.</span><span class="fu">click</span>()<span class="op">;</span> <span class="co">// This will close add modal after submit</span></span>
<span id="cb21-3"><a href="#cb21-3" aria-hidden="true" tabindex="-1"></a> <span class="kw">this</span><span class="op">.</span><span class="at">topicService</span><span class="op">.</span><span class="fu">addTopic</span>(addForm<span class="op">.</span><span class="at">value</span>)<span class="op">.</span><span class="fu">subscribe</span>(</span>
<span id="cb21-4"><a href="#cb21-4" aria-hidden="true" tabindex="-1"></a> (response<span class="op">:</span> Topic) <span class="kw">=></span> {</span>
<span id="cb21-5"><a href="#cb21-5" aria-hidden="true" tabindex="-1"></a> <span class="bu">console</span><span class="op">.</span><span class="fu">log</span>(response)<span class="op">;</span></span>
<span id="cb21-6"><a href="#cb21-6" aria-hidden="true" tabindex="-1"></a> <span class="kw">this</span><span class="op">.</span><span class="fu">getTopics</span>()<span class="op">;</span></span>
<span id="cb21-7"><a href="#cb21-7" aria-hidden="true" tabindex="-1"></a> addForm<span class="op">.</span><span class="fu">reset</span>()<span class="op">;</span></span>
<span id="cb21-8"><a href="#cb21-8" aria-hidden="true" tabindex="-1"></a> }<span class="op">,</span></span>
<span id="cb21-9"><a href="#cb21-9" aria-hidden="true" tabindex="-1"></a> (error<span class="op">:</span> HttpErrorResponse) <span class="kw">=></span> {</span>
<span id="cb21-10"><a href="#cb21-10" aria-hidden="true" tabindex="-1"></a> <span class="fu">alert</span>(error<span class="op">.</span><span class="at">message</span>)<span class="op">;</span></span>
<span id="cb21-11"><a href="#cb21-11" aria-hidden="true" tabindex="-1"></a> addForm<span class="op">.</span><span class="fu">reset</span>()<span class="op">;</span></span>
<span id="cb21-12"><a href="#cb21-12" aria-hidden="true" tabindex="-1"></a> }</span>
<span id="cb21-13"><a href="#cb21-13" aria-hidden="true" tabindex="-1"></a> )<span class="op">;</span></span>
<span id="cb21-14"><a href="#cb21-14" aria-hidden="true" tabindex="-1"></a> }</span></code></pre></div>
<p><strong><em>topic.component.html</em></strong></p>
<div class="sourceCode" id="cb22"><pre
class="sourceCode html"><code class="sourceCode html"><span id="cb22-1"><a href="#cb22-1" aria-hidden="true" tabindex="-1"></a><span class="co"><!-- ADD Item Modal--></span></span>
<span id="cb22-2"><a href="#cb22-2" aria-hidden="true" tabindex="-1"></a><span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"modal fade"</span> <span class="er">id</span><span class="ot">=</span><span class="st">"addTopicModal"</span> <span class="er">tabindex</span><span class="ot">=</span><span class="st">"-1"</span> <span class="er">role</span><span class="ot">=</span><span class="st">"dialog"</span> <span class="er">aria-labelledby</span><span class="ot">=</span><span class="st">"addModalLabel"</span><span class="er">aria-hidden</span><span class="ot">=</span><span class="st">"true"</span><span class="kw">></span></span>
<span id="cb22-3"><a href="#cb22-3" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"modal-dialog"</span> <span class="er">role</span><span class="ot">=</span><span class="st">"document"</span><span class="kw">></span></span>
<span id="cb22-4"><a href="#cb22-4" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"modal-content"</span><span class="kw">></span></span>
<span id="cb22-5"><a href="#cb22-5" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"modal-header"</span><span class="kw">></span></span>
<span id="cb22-6"><a href="#cb22-6" aria-hidden="true" tabindex="-1"></a> <span class="kw"><h5</span> <span class="er">class</span><span class="ot">=</span><span class="st">"modal-title"</span> <span class="er">id</span><span class="ot">=</span><span class="st">"addModalLabel"</span><span class="kw">></span>Add New Topic<span class="kw"></h5></span></span>
<span id="cb22-7"><a href="#cb22-7" aria-hidden="true" tabindex="-1"></a> <span class="kw"><button</span> <span class="er">type</span><span class="ot">=</span><span class="st">"button"</span> <span class="er">class</span><span class="ot">=</span><span class="st">"close"</span> <span class="er">data-dismiss</span><span class="ot">=</span><span class="st">"modal"</span> <span class="er">aria-label</span><span class="ot">=</span><span class="st">"Close"</span><span class="kw">></span></span>
<span id="cb22-8"><a href="#cb22-8" aria-hidden="true" tabindex="-1"></a> <span class="kw"><span</span> <span class="er">aria-hidden</span><span class="ot">=</span><span class="st">"true"</span><span class="kw">></span><span class="dv">&times;</span><span class="kw"></span></span></span>
<span id="cb22-9"><a href="#cb22-9" aria-hidden="true" tabindex="-1"></a> <span class="kw"></button></span></span>
<span id="cb22-10"><a href="#cb22-10" aria-hidden="true" tabindex="-1"></a> <span class="kw"></div></span></span>
<span id="cb22-11"><a href="#cb22-11" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"modal-body"</span><span class="kw">></span></span>
<span id="cb22-12"><a href="#cb22-12" aria-hidden="true" tabindex="-1"></a> <span class="kw"><form</span> <span class="er">#addForm</span><span class="ot">=</span><span class="st">"ngForm"</span> <span class="er">(ngSubmit)</span><span class="ot">=</span><span class="st">"onAddTopic(addForm)"</span><span class="kw">></span></span>
<span id="cb22-13"><a href="#cb22-13" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"form-group"</span><span class="kw">></span></span>
<span id="cb22-14"><a href="#cb22-14" aria-hidden="true" tabindex="-1"></a> <span class="kw"><label</span> <span class="er">for</span><span class="ot">=</span><span class="st">"id"</span><span class="kw">></span>Topic ID<span class="kw"></label></span></span>
<span id="cb22-15"><a href="#cb22-15" aria-hidden="true" tabindex="-1"></a> <span class="kw"><input</span> <span class="er">type</span><span class="ot">=</span><span class="st">"text"</span> <span class="er">ngModel</span> <span class="er">name</span><span class="ot">=</span><span class="st">"id"</span> <span class="er">class</span><span class="ot">=</span><span class="st">"form-control"</span> <span class="er">id</span><span class="ot">=</span><span class="st">"id"</span> <span class="er">placeholder</span><span class="ot">=</span><span class="st">"Enter Topic ID..."</span> <span class="er">required</span><span class="kw">></span></span>
<span id="cb22-16"><a href="#cb22-16" aria-hidden="true" tabindex="-1"></a> <span class="kw"></div></span></span>
<span id="cb22-17"><a href="#cb22-17" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"form-group"</span><span class="kw">></span></span>
<span id="cb22-18"><a href="#cb22-18" aria-hidden="true" tabindex="-1"></a> <span class="kw"><label</span> <span class="er">for</span><span class="ot">=</span><span class="st">"name"</span><span class="kw">></span>Topic Name<span class="kw"></label></span></span>
<span id="cb22-19"><a href="#cb22-19" aria-hidden="true" tabindex="-1"></a> <span class="kw"><input</span> <span class="er">type</span><span class="ot">=</span><span class="st">"text"</span> <span class="er">ngModel</span> <span class="er">name</span><span class="ot">=</span><span class="st">"name"</span> <span class="er">class</span><span class="ot">=</span><span class="st">"form-control"</span> <span class="er">id</span><span class="ot">=</span><span class="st">"name"</span> <span class="er">placeholder</span><span class="ot">=</span><span class="st">"Enter Topic name..."</span> <span class="er">required</span><span class="kw">></span></span>
<span id="cb22-20"><a href="#cb22-20" aria-hidden="true" tabindex="-1"></a> <span class="kw"></div></span></span>
<span id="cb22-21"><a href="#cb22-21" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"form-group"</span><span class="kw">></span></span>
<span id="cb22-22"><a href="#cb22-22" aria-hidden="true" tabindex="-1"></a> <span class="kw"><label</span> <span class="er">for</span><span class="ot">=</span><span class="st">"description"</span><span class="kw">></span>Topic Description<span class="kw"></label></span></span>
<span id="cb22-23"><a href="#cb22-23" aria-hidden="true" tabindex="-1"></a> <span class="kw"><input</span> <span class="er">type</span><span class="ot">=</span><span class="st">"text"</span> <span class="er">ngModel</span> <span class="er">name</span><span class="ot">=</span><span class="st">"description"</span> <span class="er">class</span><span class="ot">=</span><span class="st">"form-control"</span> <span class="er">id</span><span class="ot">=</span><span class="st">"description"</span> <span class="er">placeholder</span><span class="ot">=</span><span class="st">"Enter Topic description..."</span> <span class="er">required</span><span class="kw">></span></span>
<span id="cb22-24"><a href="#cb22-24" aria-hidden="true" tabindex="-1"></a> <span class="kw"></div></span></span>
<span id="cb22-25"><a href="#cb22-25" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"modal-footer"</span><span class="kw">></span></span>
<span id="cb22-26"><a href="#cb22-26" aria-hidden="true" tabindex="-1"></a> <span class="kw"><button</span> <span class="er">type</span><span class="ot">=</span><span class="st">"button"</span> <span class="er">id</span><span class="ot">=</span><span class="st">"add-topic-form"</span> <span class="er">class</span><span class="ot">=</span><span class="st">"btn btn-secondary"</span> <span class="er">data-dismiss</span><span class="ot">=</span><span class="st">"modal"</span><span class="kw">></span>Close<span class="kw"></button></span></span>
<span id="cb22-27"><a href="#cb22-27" aria-hidden="true" tabindex="-1"></a> <span class="kw"><button</span> <span class="er">[disabled]</span><span class="ot">=</span><span class="st">"addForm.invalid"</span> <span class="er">type</span><span class="ot">=</span><span class="st">"submit"</span> <span class="er">class</span><span class="ot">=</span><span class="st">"btn btn-primary"</span><span class="kw">></span>Save changes<span class="kw"></button></span></span>
<span id="cb22-28"><a href="#cb22-28" aria-hidden="true" tabindex="-1"></a> <span class="kw"></div></span></span>
<span id="cb22-29"><a href="#cb22-29" aria-hidden="true" tabindex="-1"></a> <span class="kw"></form></span></span>
<span id="cb22-30"><a href="#cb22-30" aria-hidden="true" tabindex="-1"></a> <span class="kw"></div></span></span>
<span id="cb22-31"><a href="#cb22-31" aria-hidden="true" tabindex="-1"></a> <span class="kw"></div></span></span>
<span id="cb22-32"><a href="#cb22-32" aria-hidden="true" tabindex="-1"></a> <span class="kw"></div></span></span>
<span id="cb22-33"><a href="#cb22-33" aria-hidden="true" tabindex="-1"></a><span class="kw"></div></span></span></code></pre></div>
<p><strong>Snapshot of Add Topic Modal</strong></p>
<p><img src="images/addTopic.png" alt="addTopic" style="zoom:67%;" /></p>
<p><img src="images/afterAddTopic.png" alt="afterAddTopic" style="zoom:67%;" /></p>
<h3 id="update-modal-for-topic">UPDATE Modal for Topic</h3>
<p><strong><em>topic.component.ts</em></strong></p>
<div class="sourceCode" id="cb23"><pre
class="sourceCode typescript"><code class="sourceCode typescript"><span id="cb23-1"><a href="#cb23-1" aria-hidden="true" tabindex="-1"></a><span class="kw">public</span> <span class="fu">onupdateTopic</span>(topic<span class="op">:</span> Topic)<span class="op">:</span> <span class="dt">void</span> {</span>
<span id="cb23-2"><a href="#cb23-2" aria-hidden="true" tabindex="-1"></a> <span class="co">// document.getElementById('update-topic-form').click();</span></span>
<span id="cb23-3"><a href="#cb23-3" aria-hidden="true" tabindex="-1"></a> <span class="kw">this</span><span class="op">.</span><span class="at">topicService</span><span class="op">.</span><span class="fu">updateTopic</span>(topic<span class="op">,</span> topic<span class="op">.</span><span class="at">id</span>)<span class="op">.</span><span class="fu">subscribe</span>(</span>
<span id="cb23-4"><a href="#cb23-4" aria-hidden="true" tabindex="-1"></a> (response<span class="op">:</span> Topic) <span class="kw">=></span> {</span>
<span id="cb23-5"><a href="#cb23-5" aria-hidden="true" tabindex="-1"></a> <span class="bu">console</span><span class="op">.</span><span class="fu">log</span>(response)<span class="op">;</span></span>
<span id="cb23-6"><a href="#cb23-6" aria-hidden="true" tabindex="-1"></a> <span class="kw">this</span><span class="op">.</span><span class="fu">getTopics</span>()<span class="op">;</span></span>
<span id="cb23-7"><a href="#cb23-7" aria-hidden="true" tabindex="-1"></a> }<span class="op">,</span></span>
<span id="cb23-8"><a href="#cb23-8" aria-hidden="true" tabindex="-1"></a> (error<span class="op">:</span> HttpErrorResponse) <span class="kw">=></span> {</span>
<span id="cb23-9"><a href="#cb23-9" aria-hidden="true" tabindex="-1"></a> <span class="fu">alert</span>(error<span class="op">.</span><span class="at">message</span>)<span class="op">;</span></span>
<span id="cb23-10"><a href="#cb23-10" aria-hidden="true" tabindex="-1"></a> }</span>
<span id="cb23-11"><a href="#cb23-11" aria-hidden="true" tabindex="-1"></a> )<span class="op">;</span></span>
<span id="cb23-12"><a href="#cb23-12" aria-hidden="true" tabindex="-1"></a>}</span></code></pre></div>
<p><strong><em>topic.component.html</em></strong></p>
<div class="sourceCode" id="cb24"><pre
class="sourceCode html"><code class="sourceCode html"><span id="cb24-1"><a href="#cb24-1" aria-hidden="true" tabindex="-1"></a><span class="co"><!-- UPDATE Item Modal--></span></span>
<span id="cb24-2"><a href="#cb24-2" aria-hidden="true" tabindex="-1"></a><span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"modal fade"</span> <span class="er">id</span><span class="ot">=</span><span class="st">"updateTopicModal"</span> <span class="er">tabindex</span><span class="ot">=</span><span class="st">"-1"</span> <span class="er">role</span><span class="ot">=</span><span class="st">"dialog"</span> <span class="er">aria-labelledby</span><span class="ot">=</span><span class="st">"updateModalLabel"</span> <span class="er">aria-hidden</span><span class="ot">=</span><span class="st">"true"</span><span class="kw">></span></span>
<span id="cb24-3"><a href="#cb24-3" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"modal-dialog"</span> <span class="er">role</span><span class="ot">=</span><span class="st">"document"</span><span class="kw">></span></span>
<span id="cb24-4"><a href="#cb24-4" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"modal-content"</span><span class="kw">></span></span>
<span id="cb24-5"><a href="#cb24-5" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"modal-header"</span><span class="kw">></span></span>
<span id="cb24-6"><a href="#cb24-6" aria-hidden="true" tabindex="-1"></a> <span class="kw"><h5</span> <span class="er">class</span><span class="ot">=</span><span class="st">"modal-title"</span> <span class="er">id</span><span class="ot">=</span><span class="st">"updateModalLabel"</span><span class="kw">></span>Update Topic<span class="kw"></h5></span></span>
<span id="cb24-7"><a href="#cb24-7" aria-hidden="true" tabindex="-1"></a> <span class="kw"><button</span> <span class="er">type</span><span class="ot">=</span><span class="st">"button"</span> <span class="er">class</span><span class="ot">=</span><span class="st">"close"</span> <span class="er">data-dismiss</span><span class="ot">=</span><span class="st">"modal"</span> <span class="er">aria-label</span><span class="ot">=</span><span class="st">"Close"</span><span class="kw">></span></span>
<span id="cb24-8"><a href="#cb24-8" aria-hidden="true" tabindex="-1"></a> <span class="kw"><span</span> <span class="er">aria-hidden</span><span class="ot">=</span><span class="st">"true"</span><span class="kw">></span><span class="dv">&times;</span><span class="kw"></span></span></span>
<span id="cb24-9"><a href="#cb24-9" aria-hidden="true" tabindex="-1"></a> <span class="kw"></button></span></span>
<span id="cb24-10"><a href="#cb24-10" aria-hidden="true" tabindex="-1"></a> <span class="kw"></div></span></span>
<span id="cb24-11"><a href="#cb24-11" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"modal-body"</span><span class="kw">></span></span>
<span id="cb24-12"><a href="#cb24-12" aria-hidden="true" tabindex="-1"></a> <span class="kw"><form</span> <span class="er">#updateForm</span><span class="ot">=</span><span class="st">"ngForm"</span><span class="kw">></span></span>
<span id="cb24-13"><a href="#cb24-13" aria-hidden="true" tabindex="-1"></a> <span class="co"><!-- Making Id hidden, so that users not able to update the id --></span></span>
<span id="cb24-14"><a href="#cb24-14" aria-hidden="true" tabindex="-1"></a> <span class="kw"><input</span> <span class="er">type</span><span class="ot">=</span><span class="st">"hidden"</span> <span class="er">ngModel</span><span class="ot">=</span><span class="st">"{{updateTopic?.id}}"</span> <span class="er">name</span><span class="ot">=</span><span class="st">"id"</span> <span class="er">class</span><span class="ot">=</span><span class="st">"form-control"</span> <span class="er">id</span><span class="ot">=</span><span class="st">"id"</span> <span class="er">placeholder</span><span class="ot">=</span><span class="st">"Enter Topic ID..."</span> <span class="er">required</span><span class="kw">></span></span>
<span id="cb24-15"><a href="#cb24-15" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"form-group"</span><span class="kw">></span></span>
<span id="cb24-16"><a href="#cb24-16" aria-hidden="true" tabindex="-1"></a> <span class="kw"><label</span> <span class="er">for</span><span class="ot">=</span><span class="st">"name"</span><span class="kw">></span>Topic Name<span class="kw"></label></span></span>
<span id="cb24-17"><a href="#cb24-17" aria-hidden="true" tabindex="-1"></a> <span class="kw"><input</span> <span class="er">type</span><span class="ot">=</span><span class="st">"text"</span> <span class="er">ngModel</span><span class="ot">=</span><span class="st">"{{updateTopic?.name}}"</span> <span class="er">name</span><span class="ot">=</span><span class="st">"name"</span> <span class="er">class</span><span class="ot">=</span><span class="st">"form-control"</span> <span class="er">id</span><span class="ot">=</span><span class="st">"name"</span> <span class="er">placeholder</span><span class="ot">=</span><span class="st">"Enter Topic name..."</span> <span class="er">required</span><span class="kw">></span></span>
<span id="cb24-18"><a href="#cb24-18" aria-hidden="true" tabindex="-1"></a> <span class="kw"></div></span></span>
<span id="cb24-19"><a href="#cb24-19" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"form-group"</span><span class="kw">></span></span>
<span id="cb24-20"><a href="#cb24-20" aria-hidden="true" tabindex="-1"></a> <span class="kw"><label</span> <span class="er">for</span><span class="ot">=</span><span class="st">"description"</span><span class="kw">></span>Topic Description<span class="kw"></label></span></span>
<span id="cb24-21"><a href="#cb24-21" aria-hidden="true" tabindex="-1"></a> <span class="kw"><input</span> <span class="er">type</span><span class="ot">=</span><span class="st">"text"</span> <span class="er">ngModel</span><span class="ot">=</span><span class="st">"{{updateTopic?.description}}"</span> <span class="er">name</span><span class="ot">=</span><span class="st">"description"</span> <span class="er">class</span><span class="ot">=</span><span class="st">"form-control"</span> <span class="er">id</span><span class="ot">=</span><span class="st">"description"</span> <span class="er">placeholder</span><span class="ot">=</span><span class="st">"Enter Topic description..."</span> <span class="er">required</span><span class="kw">></span></span>
<span id="cb24-22"><a href="#cb24-22" aria-hidden="true" tabindex="-1"></a> <span class="kw"></div></span></span>
<span id="cb24-23"><a href="#cb24-23" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"modal-footer"</span><span class="kw">></span></span>
<span id="cb24-24"><a href="#cb24-24" aria-hidden="true" tabindex="-1"></a> <span class="kw"><button</span> <span class="er">type</span><span class="ot">=</span><span class="st">"button"</span> <span class="er">id</span><span class="ot">=</span><span class="st">"update-topic-form"</span> <span class="er">class</span><span class="ot">=</span><span class="st">"btn btn-secondary"</span> <span class="er">data-dismiss</span><span class="ot">=</span><span class="st">"modal"</span><span class="kw">></span>Close<span class="kw"></button></span></span>
<span id="cb24-25"><a href="#cb24-25" aria-hidden="true" tabindex="-1"></a> <span class="kw"><button</span> <span class="er">(click)</span><span class="ot">=</span><span class="st">"onupdateTopic(updateForm.value)"</span> <span class="er">data-dismiss</span><span class="ot">=</span><span class="st">"modal"</span> <span class="er">class</span><span class="ot">=</span><span class="st">"btn btn-primary"</span> <span class="kw">></span>Save changes<span class="kw"></button></span></span>
<span id="cb24-26"><a href="#cb24-26" aria-hidden="true" tabindex="-1"></a> <span class="kw"></div></span></span>
<span id="cb24-27"><a href="#cb24-27" aria-hidden="true" tabindex="-1"></a> <span class="kw"></form></span></span>
<span id="cb24-28"><a href="#cb24-28" aria-hidden="true" tabindex="-1"></a> <span class="kw"></div></span></span>
<span id="cb24-29"><a href="#cb24-29" aria-hidden="true" tabindex="-1"></a> <span class="kw"></div></span></span>
<span id="cb24-30"><a href="#cb24-30" aria-hidden="true" tabindex="-1"></a> <span class="kw"></div></span></span>
<span id="cb24-31"><a href="#cb24-31" aria-hidden="true" tabindex="-1"></a><span class="kw"></div></span></span></code></pre></div>
<p><strong>Snapshot of Update Topic Modal</strong></p>
<p><img src="images/updateTopic.png" alt="updateTopic" style="zoom:67%;" /></p>
<p><img src="images/afterUpdateTopic.png" alt="afterUpdateTopic" style="zoom:67%;" /></p>
<h3 id="delete-modal-for-topic">DELETE Modal for Topic</h3>
<p><strong><em>topic.component.ts</em></strong></p>
<div class="sourceCode" id="cb25"><pre
class="sourceCode typescript"><code class="sourceCode typescript"><span id="cb25-1"><a href="#cb25-1" aria-hidden="true" tabindex="-1"></a><span class="kw">public</span> <span class="fu">onDeleteTopic</span>(topicId<span class="op">:</span> <span class="dt">string</span>)<span class="op">:</span> <span class="dt">void</span> {</span>
<span id="cb25-2"><a href="#cb25-2" aria-hidden="true" tabindex="-1"></a> <span class="kw">this</span><span class="op">.</span><span class="at">topicService</span><span class="op">.</span><span class="fu">deleteTopic</span>(topicId)<span class="op">.</span><span class="fu">subscribe</span>(</span>
<span id="cb25-3"><a href="#cb25-3" aria-hidden="true" tabindex="-1"></a> (response<span class="op">:</span> <span class="dt">void</span>) <span class="kw">=></span> {</span>
<span id="cb25-4"><a href="#cb25-4" aria-hidden="true" tabindex="-1"></a> <span class="bu">console</span><span class="op">.</span><span class="fu">log</span>(<span class="st">"Topic Deleted : "</span> <span class="op">+</span> topicId)<span class="op">;</span></span>
<span id="cb25-5"><a href="#cb25-5" aria-hidden="true" tabindex="-1"></a> <span class="kw">this</span><span class="op">.</span><span class="fu">getTopics</span>()<span class="op">;</span></span>
<span id="cb25-6"><a href="#cb25-6" aria-hidden="true" tabindex="-1"></a> }<span class="op">,</span></span>
<span id="cb25-7"><a href="#cb25-7" aria-hidden="true" tabindex="-1"></a> (error<span class="op">:</span> HttpErrorResponse) <span class="kw">=></span> { <span class="fu">alert</span>(error<span class="op">.</span><span class="at">message</span>)<span class="op">;</span> }</span>
<span id="cb25-8"><a href="#cb25-8" aria-hidden="true" tabindex="-1"></a> )<span class="op">;</span></span>
<span id="cb25-9"><a href="#cb25-9" aria-hidden="true" tabindex="-1"></a>}</span></code></pre></div>
<p><strong><em>topic.component.html</em></strong></p>
<div class="sourceCode" id="cb26"><pre
class="sourceCode html"><code class="sourceCode html"><span id="cb26-1"><a href="#cb26-1" aria-hidden="true" tabindex="-1"></a><span class="co"><!-- DELETE Item Modal--></span></span>
<span id="cb26-2"><a href="#cb26-2" aria-hidden="true" tabindex="-1"></a><span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"modal fade"</span> <span class="er">id</span><span class="ot">=</span><span class="st">"deleteTopicModal"</span> <span class="er">tabindex</span><span class="ot">=</span><span class="st">"-1"</span> <span class="er">role</span><span class="ot">=</span><span class="st">"dialog"</span> <span class="er">aria-labelledby</span><span class="ot">=</span><span class="st">"deleteModalLabel"</span></span>
<span id="cb26-3"><a href="#cb26-3" aria-hidden="true" tabindex="-1"></a><span class="ot"> aria-hidden=</span><span class="st">"true"</span><span class="kw">></span></span>
<span id="cb26-4"><a href="#cb26-4" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"modal-dialog"</span> <span class="er">role</span><span class="ot">=</span><span class="st">"document"</span><span class="kw">></span></span>
<span id="cb26-5"><a href="#cb26-5" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"modal-content"</span><span class="kw">></span></span>
<span id="cb26-6"><a href="#cb26-6" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"modal-header"</span><span class="kw">></span></span>
<span id="cb26-7"><a href="#cb26-7" aria-hidden="true" tabindex="-1"></a> <span class="kw"><h5</span> <span class="er">class</span><span class="ot">=</span><span class="st">"modal-title"</span> <span class="er">id</span><span class="ot">=</span><span class="st">"deleteModalLabel"</span><span class="kw">></span>Delete Topic<span class="kw"></h5></span></span>
<span id="cb26-8"><a href="#cb26-8" aria-hidden="true" tabindex="-1"></a> <span class="kw"><button</span> <span class="er">type</span><span class="ot">=</span><span class="st">"button"</span> <span class="er">class</span><span class="ot">=</span><span class="st">"close"</span> <span class="er">data-dismiss</span><span class="ot">=</span><span class="st">"modal"</span> <span class="er">aria-label</span><span class="ot">=</span><span class="st">"Close"</span><span class="kw">></span></span>
<span id="cb26-9"><a href="#cb26-9" aria-hidden="true" tabindex="-1"></a> <span class="kw"><span</span> <span class="er">aria-hidden</span><span class="ot">=</span><span class="st">"true"</span><span class="kw">></span><span class="dv">&times;</span><span class="kw"></span></span></span>
<span id="cb26-10"><a href="#cb26-10" aria-hidden="true" tabindex="-1"></a> <span class="kw"></button></span></span>
<span id="cb26-11"><a href="#cb26-11" aria-hidden="true" tabindex="-1"></a> <span class="kw"></div></span></span>
<span id="cb26-12"><a href="#cb26-12" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"modal-body"</span><span class="kw">></span></span>
<span id="cb26-13"><a href="#cb26-13" aria-hidden="true" tabindex="-1"></a> <span class="kw"><p></span>Are you sure you want to delete topic <span class="kw"><strong></span>{{deleteTopic?.name}}<span class="kw"></strong></span>?<span class="kw"></p></span></span>
<span id="cb26-14"><a href="#cb26-14" aria-hidden="true" tabindex="-1"></a> <span class="kw"><div</span> <span class="er">class</span><span class="ot">=</span><span class="st">"modal-footer"</span><span class="kw">></span></span>
<span id="cb26-15"><a href="#cb26-15" aria-hidden="true" tabindex="-1"></a> <span class="kw"><button</span> <span class="er">type</span><span class="ot">=</span><span class="st">"button"</span> <span class="er">class</span><span class="ot">=</span><span class="st">"btn btn-secondary"</span> <span class="er">data-dismiss</span><span class="ot">=</span><span class="st">"modal"</span><span class="kw">></span>No<span class="kw"></button></span></span>
<span id="cb26-16"><a href="#cb26-16" aria-hidden="true" tabindex="-1"></a> <span class="kw"><button</span> <span class="er">(click)</span><span class="ot">=</span><span class="st">"onDeleteTopic(deleteTopic?.id)"</span> <span class="er">class</span><span class="ot">=</span><span class="st">"btn btn-danger"</span> <span class="er">data-dismiss</span><span class="ot">=</span><span class="st">"modal"</span><span class="kw">></span>Yes<span class="kw"></button></span></span>
<span id="cb26-17"><a href="#cb26-17" aria-hidden="true" tabindex="-1"></a> <span class="kw"></div></span></span>
<span id="cb26-18"><a href="#cb26-18" aria-hidden="true" tabindex="-1"></a> <span class="kw"></div></span></span>
<span id="cb26-19"><a href="#cb26-19" aria-hidden="true" tabindex="-1"></a> <span class="kw"></div></span></span>
<span id="cb26-20"><a href="#cb26-20" aria-hidden="true" tabindex="-1"></a> <span class="kw"></div></span></span>
<span id="cb26-21"><a href="#cb26-21" aria-hidden="true" tabindex="-1"></a><span class="kw"></div></span></span></code></pre></div>
<p><strong>Snapshot of Delete Topic Modal</strong></p>
<p><img src="images/deleteTopic.png" alt="deleteTopic" style="zoom:67%;" /></p>
<p><img src="images/afterDeleteTopic.png" alt="afterDeleteTopic" style="zoom:67%;" /></p>
</div>
</div>
</div>
<!-- Bootstrap core JavaScript
================================================== -->
<!-- Placed at the end of the document so the pages load faster -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script>window.jQuery || document.write('<script src="../../assets/js/vendor/jquery.min.js"><\/script>')</script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js" integrity="sha384-0mSbJDEHialfmuBBQP6A4Qrprq5OVfW37PRR3j5ELqxss1yVqOtnepnHVP9aJ7xS" crossorigin="anonymous"></script>
<!-- IE10 viewport hack for Surface/desktop Windows 8 bug -->
<script src="https://maxcdn.bootstrapcdn.com/js/ie10-viewport-bug-workaround.js"></script>
<script>
//document.getElementById('sidebar').getElementsByTagName('ul')[0].className += "nav nav-sidebar";
/* ajust the height when click the toc
the code is from https://github.com/twbs/bootstrap/issues/1768
*/
var shiftWindow = function() { scrollBy(0, -50) };
window.addEventListener("hashchange", shiftWindow);
function load() { if (window.location.hash) shiftWindow(); }
/*add Bootstrap styles to tables*/
var tables = document.getElementsByTagName("table");
for(var i = 0; i < tables.length; ++i){
tables[i].className += "table table-bordered table-hover";
}
</script>
</body>
</html>