content: """Artifact Visualizations [9971237fa937].
  
  Revision ID: 9971237fa937
  Revises: fbd7f18ced1e
  Create Date: 2023-04-06 16:40:44.430701
  
  """
  
  import sqlalchemy as sa
  import sqlmodel
  from alembic import op
  
  # revision identifiers, used by Alembic.
  revision = "9971237fa937"
  down_revision = "fbd7f18ced1e"
  branch_labels = None
  depends_on = None
  
  
  def upgrade() -> None:
      """Upgrade database schema and/or data, creating a new revision."""
      # ### commands auto generated by Alembic - please adjust! ###
      op.create_table(
          "artifact_visualization",
          sa.Column("artifact_id", sqlmodel.sql.sqltypes.GUID(), nullable=False),
          sa.Column("id", sqlmodel.sql.sqltypes.GUID(), nullable=False),
          sa.Column("created", sa.DateTime(), nullable=False),
          sa.Column("updated", sa.DateTime(), nullable=False),
          sa.Column("type", sqlmodel.sql.sqltypes.AutoString(), nullable=False),
          sa.Column("uri", sa.TEXT(), nullable=False),
          sa.ForeignKeyConstraint(
              ["artifact_id"],
              ["artifact.id"],
              name="fk_artifact_visualization_artifact_id_artifact",
              ondelete="CASCADE",
          ),
          sa.PrimaryKeyConstraint("id"),
      )
  
      with op.batch_alter_table("artifact", schema=None) as batch_op:
          batch_op.alter_column(
              "uri",
              existing_type=sa.VARCHAR(),
              type_=sa.TEXT(),
              existing_nullable=False,
          )
      # ### end Alembic commands ###
  
  
  def downgrade() -> None:
      """Downgrade database schema and/or data back to the previous revision."""
      # ### commands auto generated by Alembic - please adjust! ###
      op.drop_table("artifact_visualization")
  
      with op.batch_alter_table("artifact", schema=None) as batch_op:
          batch_op.alter_column(
              "uri",
              existing_type=sa.TEXT(),
              type_=sa.VARCHAR(),
              existing_nullable=False,
          )
      # ### end Alembic commands ###
  