50 lines
1.9 KiB
Python
50 lines
1.9 KiB
Python
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"""add_card_links_table
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Revision ID: bf430156bcf2
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Revises: a9709e7ed22d
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Create Date: 2026-04-30 19:37:25.884514
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"""
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from alembic import op
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import sqlalchemy as sa
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# revision identifiers, used by Alembic.
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revision = 'bf430156bcf2'
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down_revision = 'a9709e7ed22d'
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branch_labels = None
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depends_on = None
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def upgrade():
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# ### commands auto generated by Alembic - please adjust! ###
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op.create_table('card_links',
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sa.Column('id', sa.Integer(), nullable=False),
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sa.Column('parent_card_id', sa.Integer(), nullable=False),
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sa.Column('child_card_id', sa.Integer(), nullable=False),
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sa.Column('created_by', sa.Integer(), nullable=True),
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sa.Column('created_at', sa.DateTime(), nullable=True),
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sa.ForeignKeyConstraint(['child_card_id'], ['cards.id'], ondelete='CASCADE'),
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sa.ForeignKeyConstraint(['created_by'], ['users.id'], ),
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sa.ForeignKeyConstraint(['parent_card_id'], ['cards.id'], ondelete='CASCADE'),
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sa.PrimaryKeyConstraint('id'),
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sa.UniqueConstraint('parent_card_id', 'child_card_id', name='unique_card_link')
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)
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with op.batch_alter_table('card_links', schema=None) as batch_op:
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batch_op.create_index(batch_op.f('ix_card_links_child_card_id'), ['child_card_id'], unique=False)
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batch_op.create_index(batch_op.f('ix_card_links_created_by'), ['created_by'], unique=False)
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batch_op.create_index(batch_op.f('ix_card_links_parent_card_id'), ['parent_card_id'], unique=False)
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# ### end Alembic commands ###
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def downgrade():
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# ### commands auto generated by Alembic - please adjust! ###
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with op.batch_alter_table('card_links', schema=None) as batch_op:
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batch_op.drop_index(batch_op.f('ix_card_links_parent_card_id'))
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batch_op.drop_index(batch_op.f('ix_card_links_created_by'))
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batch_op.drop_index(batch_op.f('ix_card_links_child_card_id'))
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op.drop_table('card_links')
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# ### end Alembic commands ###
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