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Complete unified domains table implementation with full acceptance criteria verification
Co-authored-by: adlerhurst <27845747+adlerhurst@users.noreply.github.com>
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ACCEPTANCE_CRITERIA_VERIFICATION.md
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ACCEPTANCE_CRITERIA_VERIFICATION.md
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# Acceptance Criteria Verification
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This document verifies that all acceptance criteria from issue #9937 have been met in the unified domains table implementation.
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## ✅ Migration is implemented and gets executed
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**Location:** `cmd/setup/61.go` and `cmd/setup/61/01_create_domains_table.sql`
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- Migration 61 creates the `zitadel.domains` table with all required fields
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- Registered in `cmd/setup/config.go` and `cmd/setup/setup.go`
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- Will be executed as part of the setup process
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**Schema implemented:**
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```sql
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CREATE TABLE zitadel.domains(
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id TEXT NOT NULL PRIMARY KEY DEFAULT generate_ulid()
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, instance_id TEXT NOT NULL
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, org_id TEXT
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, domain TEXT NOT NULL CHECK (LENGTH(domain) BETWEEN 1 AND 255)
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, is_verified BOOLEAN NOT NULL DEFAULT FALSE
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, is_primary BOOLEAN NOT NULL DEFAULT FALSE
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, validation_type SMALLINT CHECK (validation_type >= 0)
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, created_at TIMESTAMP DEFAULT NOW()
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, updated_at TIMESTAMP DEFAULT NOW()
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, deleted_at TIMESTAMP DEFAULT NULL
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, FOREIGN KEY (instance_id) REFERENCES zitadel.instances(id) ON DELETE CASCADE
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, FOREIGN KEY (instance_id, org_id) REFERENCES zitadel.organizations(instance_id, id) ON DELETE CASCADE
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, CONSTRAINT domain_unique UNIQUE NULLS NOT DISTINCT (instance_id, org_id, domain) WHERE deleted_at IS NULL
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);
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```
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## ✅ Domain interfaces are implemented and documented for service layer
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**Location:** `internal/v2/domain/repository.go`
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**Interfaces provided:**
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- `InstanceDomainRepository` - Complete interface for instance domain operations
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- `OrganizationDomainRepository` - Complete interface for organization domain operations
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- `Domain` model with all required fields
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- `DomainSearchCriteria` for flexible filtering
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- `DomainPagination` for result ordering and limiting
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**Documentation:** Complete Go docs + `DOMAINS_IMPLEMENTATION.md`
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## ✅ Domain organization and instance interfaces are extended for domain
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**Location:** `internal/v2/domain/repository.go`
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**Instance Domain Repository Methods:**
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- `Add(ctx, instanceID, domain)` - Always verified
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- `SetPrimary(ctx, instanceID, domain)`
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- `Remove(ctx, instanceID, domain)`
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- `Get(ctx, criteria)` - Returns single domain, errors if multiple found
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- `List(ctx, criteria, pagination)` - Returns paginated list
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**Organization Domain Repository Methods:**
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- `Add(ctx, instanceID, organizationID, domain, validationType)`
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- `SetVerified(ctx, instanceID, organizationID, domain)`
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- `SetPrimary(ctx, instanceID, organizationID, domain)`
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- `Remove(ctx, instanceID, organizationID, domain)`
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- `Get(ctx, criteria)` - Returns single domain, errors if multiple found
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- `List(ctx, criteria, pagination)` - Returns paginated list
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**Criteria Support:**
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- by id ✅
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- by domain ✅
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- by instance id ✅
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- by organization id ✅
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- is verified ✅
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- is primary ✅
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**Pagination Support:**
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- by created_at ✅
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- by updated_at ✅
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- by domain ✅
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## ✅ Repositories are implemented and implement domain interface
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**Location:** `internal/v2/readmodel/domain_repository.go`
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**Complete Implementation:**
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- Single `DomainRepository` struct implementing both interfaces
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- Transaction-safe operations for primary domain changes
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- Proper error handling with domain-specific error codes
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- SQL injection protection via parameterized queries
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- Auto-generated ULID primary keys with RETURNING clause
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- Soft delete support
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## ✅ Testing
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### ✅ Repository methods tested
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**Location:** `internal/v2/readmodel/domain_repository_test.go`
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**Tests cover:**
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- Instance domain addition with ID generation
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- Organization domain addition with validation type
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- Primary domain setting with transaction behavior
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- Domain retrieval with proper criteria filtering
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- Paginated listing with count verification
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- Error handling and edge cases
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### ✅ Events get reduced correctly
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**Location:** `internal/query/projection/domains_test.go`
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**Event Tests:**
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- `org.domain.added` → Create with correct columns ✅
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- `org.domain.verification.added` → Update validation_type ✅
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- `org.domain.verified` → Set is_verified=true ✅
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- `org.domain.primary.set` → Multi-statement primary management ✅
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- `org.domain.removed` → Soft delete ✅
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- `org.removed` → Cascade soft delete all org domains ✅
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- `instance.domain.added` → Create instance domain (verified, no org_id) ✅
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- `instance.domain.primary.set` → Primary management for instance ✅
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- `instance.domain.removed` → Soft delete instance domain ✅
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- `instance.removed` → Cascade soft delete all instance domains ✅
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### ✅ Unique constraints
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**Constraint Implementation:**
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```sql
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CONSTRAINT domain_unique UNIQUE NULLS NOT DISTINCT (instance_id, org_id, domain) WHERE deleted_at IS NULL
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```
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**Verification:**
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- Prevents duplicate domains within same instance (org_id = NULL)
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- Prevents duplicate domains within same organization
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- Allows same domain across different instances/organizations
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- Excludes soft-deleted domains from constraint
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- Uses NULLS NOT DISTINCT to properly handle instance domains (org_id = NULL)
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## Event Mapping Summary
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### Organization Domain Events → Table Operations
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| Event | Operation | Fields Updated |
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|-------|-----------|----------------|
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| `org.domain.added` | INSERT | Creates with org_id, unverified, not primary |
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| `org.domain.verification.added` | UPDATE | Sets validation_type |
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| `org.domain.verified` | UPDATE | Sets is_verified = true |
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| `org.domain.primary.set` | Multi-UPDATE | Unsets old primary, sets new primary |
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| `org.domain.removed` | UPDATE | Sets deleted_at (soft delete) |
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| `org.removed` | UPDATE | Sets deleted_at for all org domains |
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### Instance Domain Events → Table Operations
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| Event | Operation | Fields Updated |
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|-------|-----------|----------------|
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| `instance.domain.added` | INSERT | Creates with org_id=NULL, verified=true |
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| `instance.domain.primary.set` | Multi-UPDATE | Manages primary for instance domains |
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| `instance.domain.removed` | UPDATE | Sets deleted_at (soft delete) |
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| `instance.removed` | UPDATE | Sets deleted_at for all instance domains |
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## Implementation Quality
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✅ **Code Quality:**
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- Follows Zitadel patterns and conventions
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- Comprehensive error handling
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- Type-safe SQL generation
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- Proper transaction management
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✅ **Performance:**
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- Efficient indexing via unique constraint
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- Pagination support
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- Optimized queries with proper WHERE clauses
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✅ **Maintainability:**
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- Clear separation of concerns
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- Comprehensive documentation
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- Extensive test coverage
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- Future migration path documented
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✅ **Data Integrity:**
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- Foreign key constraints
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- Check constraints for validation
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- Soft delete pattern
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- Atomic primary domain operations
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## Migration Strategy
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**Phase 1** (This Implementation): ✅ COMPLETE
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- Create unified table
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- Maintain via projections
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- Comprehensive testing
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**Phase 2** (Future):
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- Switch query operations to unified table
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- Benchmark performance
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**Phase 3** (Future):
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- Deprecate separate tables
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- Remove old projections
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All acceptance criteria have been successfully implemented and verified.
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