46 lines
2 KiB
Python
46 lines
2 KiB
Python
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"""add_workstream_dependencies
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Revision ID: 0b547c153153
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Revises: 0001
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Create Date: 2026-02-25 17:26:54.017622
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"""
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from typing import Sequence, Union
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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: str = '0b547c153153'
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down_revision: Union[str, None] = '0001'
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branch_labels: Union[str, Sequence[str], None] = None
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depends_on: Union[str, Sequence[str], None] = None
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def upgrade() -> None:
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# ### commands auto generated by Alembic - please adjust! ###
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op.create_table('workstream_dependencies',
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sa.Column('id', sa.UUID(), nullable=False),
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sa.Column('from_workstream_id', sa.UUID(), nullable=False),
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sa.Column('to_workstream_id', sa.UUID(), nullable=False),
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sa.Column('description', sa.Text(), nullable=True),
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sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
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sa.Column('updated_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
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sa.ForeignKeyConstraint(['from_workstream_id'], ['workstreams.id'], ondelete='CASCADE'),
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sa.ForeignKeyConstraint(['to_workstream_id'], ['workstreams.id'], ondelete='CASCADE'),
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sa.PrimaryKeyConstraint('id'),
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sa.UniqueConstraint('from_workstream_id', 'to_workstream_id', name='uq_ws_dep_pair')
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)
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op.create_index(op.f('ix_workstream_dependencies_from_workstream_id'), 'workstream_dependencies', ['from_workstream_id'], unique=False)
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op.create_index(op.f('ix_workstream_dependencies_to_workstream_id'), 'workstream_dependencies', ['to_workstream_id'], unique=False)
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# ### end Alembic commands ###
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def downgrade() -> None:
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# ### commands auto generated by Alembic - please adjust! ###
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op.drop_index(op.f('ix_workstream_dependencies_to_workstream_id'), table_name='workstream_dependencies')
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op.drop_index(op.f('ix_workstream_dependencies_from_workstream_id'), table_name='workstream_dependencies')
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op.drop_table('workstream_dependencies')
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# ### end Alembic commands ###
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