Phase 1 Implementation Summary

Status: ✅ Complete

Phase 1 migration files have been created and are ready for testing in staging.

Migration Files Created

1. Migration 14: Create Tenants Table

File: supabase/migrations/20251212194252_14_create_tenants_table.sql

• Creates tenants table with:
  • id (uuid, PRIMARY KEY)
  • name (text, NOT NULL, UNIQUE)
  • created_at (timestamptz)
• No RLS policies (will be added in Phase 3)
• No additional indexes needed (PRIMARY KEY and UNIQUE create indexes automatically)

2. Migration 15: Add tenant_id Columns

File: supabase/migrations/20251212194253_15_add_tenant_id_columns.sql

• Adds nullable tenant_id column to 20 tables:

  1. profiles (foundational)
  2. clients (parent table)
  3. products_services (parent table)
  4. inventory (child table)
  5. inventory_history (child table)
  6. employees (child table)
  7. timesheets (child table)
  8. invoices (child table)
  9. invoice_line_items (child table)
  10. quotes (child table)
  11. quote_line_items (child table)
  12. projects (child table)
  13. tasks (child table)
  14. project_employees (child table)
  15. payments (child table)
  16. client_communications (child table)
  17. activity_logs (child table)
  18. api_keys (child table)
  19. webhooks (child table)
  20. webhook_logs (child table)

• Creates 20 indexes: idx_<table_name>_tenant_id

• All columns are nullable (will be made NOT NULL in Phase 5)

• All columns have foreign key constraints to tenants(id)

Validation

Validation queries are available in: docs/migrations/planning/phase1-validation-queries.sql

Run these queries after executing the migrations to verify:

• Tenants table structure is correct
• All 20 tenant_id columns exist and are nullable
• All 20 indexes were created
• All foreign key constraints reference tenants(id)

Testing Requirements

Note: These migrations require manual testing in a staging environment:

1. Migration 14 Testing:

   • Execute migration 14
   • Run validation queries for tenants table
   • Verify no errors in migration logs

2. Migration 15 Testing:

   • Execute migration 15 (after migration 14)
   • Run validation queries for tenant_id columns
   • Verify all 20 tables have tenant_id column
   • Verify all 20 indexes exist
   • Verify application continues to function (columns are nullable)

3. Application Testing:

   • Verify existing queries still work
   • Verify INSERT operations work (tenant_id can be NULL)
   • Verify SELECT operations work
   • Monitor application logs for errors

Next Steps

After Phase 1 is validated in staging:

1. Deploy to production (after backup)
2. Proceed to Phase 2: Data Backfill
   • Create default tenant (Autoch.at)
   • Backfill all tenant_id columns
   • Run tenant consistency validation

Files Created

• ✅ supabase/migrations/20251212194252_14_create_tenants_table.sql
• ✅ supabase/migrations/20251212194253_15_add_tenant_id_columns.sql
• ✅ docs/migrations/planning/phase1-validation-queries.sql
• ✅ docs/migrations/phase1-implementation-summary.md (this file)