35 lines
1.1 KiB
Python
35 lines
1.1 KiB
Python
"""improve relations for threads and comments
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Revision ID: e3b140752719
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Revises: 794d44c2bef8
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Create Date: 2019-08-24 19:09:46.981771
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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 = 'e3b140752719'
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down_revision = '794d44c2bef8'
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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.add_column('thread', sa.Column('top_comment_id', sa.Integer(), nullable=True))
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op.drop_constraint('thread_top_comment_fkey', 'thread', type_='foreignkey')
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op.create_foreign_key(None, 'thread', 'comment', ['top_comment_id'], ['id'])
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op.drop_column('thread', 'top_comment')
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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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op.add_column('thread', sa.Column('top_comment', sa.INTEGER(), autoincrement=False, nullable=True))
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op.drop_constraint(None, 'thread', type_='foreignkey')
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op.create_foreign_key('thread_top_comment_fkey', 'thread', 'comment', ['top_comment'], ['id'])
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op.drop_column('thread', 'top_comment_id')
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# ### end Alembic commands ###
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