wehub-resource-sync
34 lines
1.6 KiB
Markdown
34 lines
1.6 KiB
Markdown
---
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allowed-tools: Read, Write, Edit, Bash
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argument-hint: [migration-name] | --create-table | --add-column | --alter-table
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description: Create and manage database migrations with proper versioning and rollback support
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---
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# Create Database Migrations
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Create and manage database migrations: **$ARGUMENTS**
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## Current Database State
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- ORM detection: @package.json or @requirements.txt (detect Sequelize, Prisma, Alembic, etc.)
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- Migration files: !`find . -name "*migration*" -type f | head -5`
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- Database config: @config/database.* or @prisma/schema.prisma
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- Current schema: !`ls migrations/ 2>/dev/null | wc -l` migrations found
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## Task
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Create comprehensive database migrations with proper versioning and rollback capabilities:
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**Migration Types**: Use $ARGUMENTS to specify table creation, column addition, table alteration, or data migration
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**Migration Framework**:
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1. **Migration Planning** - Analyze schema changes, dependencies, and data impact
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2. **Migration Generation** - Create timestamped migration files with up/down methods
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3. **Schema Updates** - Table creation, column modifications, index management
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4. **Data Migrations** - Safe data transformations and backfills
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5. **Rollback Strategy** - Implement reliable rollback procedures for each change
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6. **Testing** - Validate migrations in development and staging environments
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**Best Practices**: Follow database-specific conventions, maintain referential integrity, handle large datasets efficiently, and ensure zero-downtime deployments.
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**Output**: Production-ready migration files with comprehensive rollback support, proper indexing, and data safety measures. |