busya
274510fc38
- Replaced @TIER: TRIVIAL with @COMPLEXITY: 1 - Replaced @TIER: STANDARD with @COMPLEXITY: 3 - Replaced @TIER: CRITICAL with @COMPLEXITY: 5 - Manually elevated specific critical/complex components to levels 2 and 4 - Ignored legacy, specs, and node_modules directories - Updated generated semantic map
103 lines
4.0 KiB
Python
103 lines
4.0 KiB
Python
# [DEF:backend.src.models.mapping:Module]
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#
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# @COMPLEXITY: 3
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# @SEMANTICS: database, mapping, environment, migration, sqlalchemy, sqlite
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# @PURPOSE: Defines the database schema for environment metadata and database mappings using SQLAlchemy.
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# @LAYER: Domain
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# @RELATION: DEPENDS_ON -> sqlalchemy
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#
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# @INVARIANT: All primary keys are UUID strings.
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# @CONSTRAINT: source_env_id and target_env_id must be valid environment IDs.
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# [SECTION: IMPORTS]
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from sqlalchemy import Column, String, Boolean, DateTime, ForeignKey, Enum as SQLEnum
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from sqlalchemy.ext.declarative import declarative_base
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from sqlalchemy.sql import func
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import uuid
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import enum
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# [/SECTION]
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Base = declarative_base()
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# [DEF:ResourceType:Class]
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# @COMPLEXITY: 1
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# @PURPOSE: Enumeration of possible Superset resource types for ID mapping.
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class ResourceType(str, enum.Enum):
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CHART = "chart"
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DATASET = "dataset"
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DASHBOARD = "dashboard"
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# [/DEF:ResourceType:Class]
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# [DEF:MigrationStatus:Class]
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# @COMPLEXITY: 1
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# @PURPOSE: Enumeration of possible migration job statuses.
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class MigrationStatus(enum.Enum):
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PENDING = "PENDING"
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RUNNING = "RUNNING"
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COMPLETED = "COMPLETED"
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FAILED = "FAILED"
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AWAITING_MAPPING = "AWAITING_MAPPING"
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# [/DEF:MigrationStatus:Class]
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# [DEF:Environment:Class]
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# @COMPLEXITY: 3
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# @PURPOSE: Represents a Superset instance environment.
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class Environment(Base):
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__tablename__ = "environments"
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id = Column(String, primary_key=True, default=lambda: str(uuid.uuid4()))
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name = Column(String, nullable=False)
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url = Column(String, nullable=False)
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credentials_id = Column(String, nullable=False)
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# [/DEF:Environment:Class]
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# [DEF:DatabaseMapping:Class]
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# @COMPLEXITY: 3
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# @PURPOSE: Represents a mapping between source and target databases.
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class DatabaseMapping(Base):
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__tablename__ = "database_mappings"
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id = Column(String, primary_key=True, default=lambda: str(uuid.uuid4()))
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source_env_id = Column(String, ForeignKey("environments.id"), nullable=False)
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target_env_id = Column(String, ForeignKey("environments.id"), nullable=False)
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source_db_uuid = Column(String, nullable=False)
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target_db_uuid = Column(String, nullable=False)
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source_db_name = Column(String, nullable=False)
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target_db_name = Column(String, nullable=False)
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engine = Column(String, nullable=True)
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# [/DEF:DatabaseMapping:Class]
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# [DEF:MigrationJob:Class]
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# @COMPLEXITY: 2
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# @PURPOSE: Represents a single migration execution job.
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class MigrationJob(Base):
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__tablename__ = "migration_jobs"
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id = Column(String, primary_key=True, default=lambda: str(uuid.uuid4()))
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source_env_id = Column(String, ForeignKey("environments.id"), nullable=False)
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target_env_id = Column(String, ForeignKey("environments.id"), nullable=False)
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status = Column(SQLEnum(MigrationStatus), default=MigrationStatus.PENDING)
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replace_db = Column(Boolean, default=False)
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created_at = Column(DateTime(timezone=True), server_default=func.now())
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# [/DEF:MigrationJob:Class]
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# [DEF:ResourceMapping:Class]
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# @COMPLEXITY: 3
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# @PURPOSE: Maps a universal UUID for a resource to its actual ID on a specific environment.
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# @TEST_DATA: resource_mapping_record -> {'environment_id': 'prod-env-1', 'resource_type': 'chart', 'uuid': '123e4567-e89b-12d3-a456-426614174000', 'remote_integer_id': '42'}
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class ResourceMapping(Base):
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__tablename__ = "resource_mappings"
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id = Column(String, primary_key=True, default=lambda: str(uuid.uuid4()))
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environment_id = Column(String, ForeignKey("environments.id"), nullable=False)
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resource_type = Column(SQLEnum(ResourceType), nullable=False)
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uuid = Column(String, nullable=False)
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remote_integer_id = Column(String, nullable=False) # Stored as string to handle potentially large or composite IDs safely, though Superset usually uses integers.
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resource_name = Column(String, nullable=True) # Used for UI display
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last_synced_at = Column(DateTime(timezone=True), server_default=func.now(), onupdate=func.now())
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# [/DEF:ResourceMapping:Class]
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# [/DEF:backend.src.models.mapping:Module]
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