feat(migration): add auto-migration generation from models#2102
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feat(migration): add auto-migration generation from models#2102
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Adds AutoMigrator.cfc that compares model property definitions against current database schema and generates migration CFCs automatically. Supports diff(), diffAll(), generateMigrationCFC(), and writeMigration(). Handles type mapping, skips calculated properties and primary keys. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
…ision Sanitize migration name before using it as a filename to prevent filesystem errors with special characters. Add millisecond precision to the timestamp prefix to reduce collision risk on rapid successive writeMigration() calls. Includes 8 tests for the sanitizer. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Summary
AutoMigrator.cfc— a schema diff engine that compares model properties against current DB columnsdiff(modelName)returns{addColumns, removeColumns, changeColumns}for a single modeldiffAll()iterates all registered models and returns combined diff resultsgenerateMigrationCFC()produces a complete migration CFC withup()anddown()methods using the Wheels migration DSLwriteMigration()writes the generated CFC toapp/migrator/migrations/with proper timestamp prefixCloses the auto-migration gap (vs Django's
makemigrations) identified indocs/wheels-vs-frameworks.md.Test plan
bash tools/test-local.sh— all existing tests passvendor/wheels/tests/specs/migrator/autoMigratorSpec.cfcpassdiff()against known model with schema mismatch🤖 Generated with Claude Code