content: #  Copyright (c) ZenML GmbH 2022. All Rights Reserved.
  #
  #  Licensed under the Apache License, Version 2.0 (the "License");
  #  you may not use this file except in compliance with the License.
  #  You may obtain a copy of the License at:
  #
  #       https://www.apache.org/licenses/LICENSE-2.0
  #
  #  Unless required by applicable law or agreed to in writing, software
  #  distributed under the License is distributed on an "AS IS" BASIS,
  #  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
  #  or implied. See the License for the specific language governing
  #  permissions and limitations under the License.
  """SQLModel implementation of pipeline logs tables."""
  
  from typing import Any, Optional
  from uuid import UUID
  
  from sqlalchemy import TEXT, VARCHAR, Column, UniqueConstraint
  from sqlmodel import Field, Relationship
  
  from zenml.models import (
      LogsResponse,
      LogsResponseBody,
      LogsResponseMetadata,
  )
  from zenml.zen_stores.schemas.base_schemas import BaseSchema
  from zenml.zen_stores.schemas.component_schemas import StackComponentSchema
  from zenml.zen_stores.schemas.pipeline_run_schemas import PipelineRunSchema
  from zenml.zen_stores.schemas.schema_utils import build_foreign_key_field
  from zenml.zen_stores.schemas.step_run_schemas import StepRunSchema
  
  
  class LogsSchema(BaseSchema, table=True):
      """SQL Model for logs."""
  
      __tablename__ = "logs"
      __table_args__ = (
          UniqueConstraint(
              "source",
              "pipeline_run_id",
              "step_run_id",
              name="unique_source_per_run_and_step",
          ),
      )
  
      # Fields
      uri: Optional[str] = Field(sa_column=Column(TEXT, nullable=True))
      source: str = Field(sa_column=Column(VARCHAR(255), nullable=False))
  
      # Foreign Keys
      pipeline_run_id: Optional[UUID] = build_foreign_key_field(
          source=__tablename__,
          target=PipelineRunSchema.__tablename__,
          source_column="pipeline_run_id",
          target_column="id",
          ondelete="CASCADE",
          nullable=True,
      )
      step_run_id: Optional[UUID] = build_foreign_key_field(
          source=__tablename__,
          target=StepRunSchema.__tablename__,
          source_column="step_run_id",
          target_column="id",
          ondelete="CASCADE",
          nullable=True,
      )
      artifact_store_id: Optional[UUID] = build_foreign_key_field(
          source=__tablename__,
          target=StackComponentSchema.__tablename__,
          source_column="artifact_store_id",
          target_column="id",
          ondelete="CASCADE",
          nullable=True,
      )
      log_store_id: Optional[UUID] = build_foreign_key_field(
          source=__tablename__,
          target=StackComponentSchema.__tablename__,
          source_column="log_store_id",
          target_column="id",
          ondelete="CASCADE",
          nullable=True,
      )
  
      # Relationships
      pipeline_run: Optional["PipelineRunSchema"] = Relationship(
          back_populates="logs"
      )
      step_run: Optional["StepRunSchema"] = Relationship(back_populates="logs")
  
      def to_model(
          self,
          include_metadata: bool = False,
          include_resources: bool = False,
          **kwargs: Any,
      ) -> "LogsResponse":
          """Convert a `LogsSchema` to a `LogsResponse`.
  
          Args:
              include_metadata: Whether the metadata will be filled.
              include_resources: Whether the resources will be filled.
              **kwargs: Keyword arguments to allow schema specific logic
  
          Returns:
              The created `LogsResponse`.
          """
          body = LogsResponseBody(
              uri=self.uri,
              source=self.source,
              created=self.created,
              updated=self.updated,
          )
          metadata = None
          if include_metadata:
              metadata = LogsResponseMetadata(
                  step_run_id=self.step_run_id,
                  pipeline_run_id=self.pipeline_run_id,
                  artifact_store_id=self.artifact_store_id,
                  log_store_id=self.log_store_id,
              )
          return LogsResponse(
              id=self.id,
              body=body,
              metadata=metadata,
          )
  