mirror of
https://codeberg.org/rimu/pyfedi
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75 lines
3.1 KiB
Python
75 lines
3.1 KiB
Python
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"""unique instance domain
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Revision ID: d88b49617de0
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Revises: c3cc707ab5e9
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Create Date: 2024-11-24 16:22:16.733285
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"""
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from alembic import op
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import sqlalchemy as sa
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from sqlalchemy import text
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# revision identifiers, used by Alembic.
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revision = 'd88b49617de0'
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down_revision = 'c3cc707ab5e9'
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branch_labels = None
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depends_on = None
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def upgrade():
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# Find duplicate communities by ap_profile_id
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dupes_query = text('''
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SELECT domain FROM "instance"
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GROUP BY domain
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HAVING COUNT(*) > 1
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''')
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conn = op.get_bind()
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duplicate_instances = conn.execute(dupes_query).scalars()
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print('Cleaning up duplicate instances...')
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for domain in duplicate_instances:
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if domain is None:
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continue
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# Get all communities with the same ap_profile_id, ordered by ID
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users_query = text('''
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SELECT id FROM "instance"
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WHERE domain = :domain
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ORDER BY id
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''')
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instances = conn.execute(users_query, {"domain": domain}).fetchall()
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# Set the lowest ID as the new_id, and collect other IDs to update/delete
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new_id = instances[0].id
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old_ids = [instance.id for instance in instances[1:]]
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print(domain)
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if old_ids:
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# Update tables with batch IN clause
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conn.execute(text('UPDATE "community" SET instance_id = :new_id WHERE instance_id IN :old_ids'), {"new_id": new_id, "old_ids": tuple(old_ids)})
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conn.execute(text('UPDATE "user" SET instance_id = :new_id WHERE instance_id IN :old_ids'), {"new_id": new_id, "old_ids": tuple(old_ids)})
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conn.execute(text('UPDATE "post" SET instance_id = :new_id WHERE instance_id IN :old_ids'), {"new_id": new_id, "old_ids": tuple(old_ids)})
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conn.execute(text('UPDATE "post_reply" SET instance_id = :new_id WHERE instance_id IN :old_ids'), {"new_id": new_id, "old_ids": tuple(old_ids)})
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conn.execute(text('UPDATE "report" SET source_instance_id = :new_id WHERE source_instance_id IN :old_ids'), {"new_id": new_id, "old_ids": tuple(old_ids)})
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conn.execute(text('DELETE FROM "instance_role" WHERE instance_id IN :old_ids'), {"old_ids": tuple(old_ids)})
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conn.execute(text('DELETE FROM "instance_block" WHERE instance_id IN :old_ids'), {"old_ids": tuple(old_ids)})
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# Delete the duplicate instances
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conn.execute(text('DELETE FROM "instance" WHERE id IN :old_ids'), {"old_ids": tuple(old_ids)})
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# ### commands auto generated by Alembic - please adjust! ###
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with op.batch_alter_table('instance', schema=None) as batch_op:
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batch_op.drop_index('ix_instance_domain')
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batch_op.create_index(batch_op.f('ix_instance_domain'), ['domain'], unique=True)
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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('instance', schema=None) as batch_op:
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batch_op.drop_index(batch_op.f('ix_instance_domain'))
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batch_op.create_index('ix_instance_domain', ['domain'], unique=False)
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# ### end Alembic commands ###
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