pyfedi/migrations/versions/26138ecda7c3_unique_user_ap_profile_id.py

"""unique user ap profile id

Revision ID: 26138ecda7c3
Revises: a4debcf5ac6f
Create Date: 2024-11-14 19:28:59.596757

"""
from alembic import op
import sqlalchemy as sa
from sqlalchemy import text


# revision identifiers, used by Alembic.
revision = '26138ecda7c3'
down_revision = 'a4debcf5ac6f'
branch_labels = None
depends_on = None


def upgrade():
    # Find duplicate users by ap_profile_id
    dupes_query = text('''
        SELECT ap_profile_id FROM "user" 
        GROUP BY ap_profile_id 
        HAVING COUNT(*) > 1
    ''')

    conn = op.get_bind()
    duplicate_profiles = conn.execute(dupes_query).scalars()
    print('Cleaning up duplicate users, this may take a while...')

    for profile_id in duplicate_profiles:
        if profile_id is None:
            continue
        # Get all users with the same ap_profile_id, ordered by ID
        users_query = text('''
            SELECT id FROM "user" 
            WHERE ap_profile_id = :ap_profile_id 
            ORDER BY id
        ''')
        users = conn.execute(users_query, {"ap_profile_id": profile_id}).fetchall()

        # Set the lowest ID as the new_id, and collect other IDs to update/delete
        new_id = users[0].id
        old_ids = [user.id for user in users[1:]]

        print(profile_id)

        if old_ids:
            # Update tables with batch IN clause
            conn.execute(text('UPDATE "post" SET user_id = :new_id WHERE user_id IN :old_ids'), {"new_id": new_id, "old_ids": tuple(old_ids)})
            conn.execute(text('DELETE FROM "post_vote" WHERE user_id IN :old_ids'), {"old_ids": tuple(old_ids)})
            conn.execute(text('DELETE FROM "post_vote" WHERE author_id IN :old_ids'), {"old_ids": tuple(old_ids)})
            conn.execute(text('UPDATE "post_reply" SET user_id = :new_id WHERE user_id IN :old_ids'), {"new_id": new_id, "old_ids": tuple(old_ids)})
            conn.execute(text('DELETE FROM "post_reply_vote" WHERE user_id IN :old_ids'), {"old_ids": tuple(old_ids)})
            conn.execute(text('DELETE FROM "post_reply_vote" WHERE author_id IN :old_ids'), {"old_ids": tuple(old_ids)})
            conn.execute(text('UPDATE "notification" SET user_id = :new_id WHERE user_id IN :old_ids'), {"new_id": new_id, "old_ids": tuple(old_ids)})
            conn.execute(text('UPDATE "notification" SET author_id = :new_id WHERE author_id IN :old_ids'), {"new_id": new_id, "old_ids": tuple(old_ids)})
            conn.execute(text('UPDATE "notification_subscription" SET user_id = :new_id WHERE user_id IN :old_ids'), {"new_id": new_id, "old_ids": tuple(old_ids)})
            conn.execute(text('DELETE FROM "community_member" WHERE user_id IN :old_ids'), {"old_ids": tuple(old_ids)})
            conn.execute(text('DELETE FROM "instance_role" WHERE user_id IN :old_ids'), {"old_ids": tuple(old_ids)})
            conn.execute(text('DELETE FROM "mod_log" WHERE user_id IN :old_ids'), {"old_ids": tuple(old_ids)})
            conn.execute(text('UPDATE "chat_message" SET sender_id = :new_id WHERE sender_id IN :old_ids'), {"new_id": new_id, "old_ids": tuple(old_ids)})
            conn.execute(text('UPDATE "conversation" SET user_id = :new_id WHERE user_id IN :old_ids'), {"new_id": new_id, "old_ids": tuple(old_ids)})
            conn.execute(text('UPDATE "chat_message" SET recipient_id = :new_id WHERE recipient_id IN :old_ids'), {"new_id": new_id, "old_ids": tuple(old_ids)})
            conn.execute(text('DELETE FROM "conversation_member" WHERE user_id IN :old_ids'), {"old_ids": tuple(old_ids)})
            conn.execute(text('UPDATE "community" SET user_id = :new_id WHERE user_id IN :old_ids'), {"new_id": new_id, "old_ids": tuple(old_ids)})
            conn.execute(text('UPDATE "domain_block" SET user_id = :new_id WHERE user_id IN :old_ids'), {"new_id": new_id, "old_ids": tuple(old_ids)})
            conn.execute(text('UPDATE "community_block" SET user_id = :new_id WHERE user_id IN :old_ids'), {"new_id": new_id, "old_ids": tuple(old_ids)})
            conn.execute(text('UPDATE "user_follower" SET local_user_id = :new_id WHERE local_user_id IN :old_ids'), {"new_id": new_id, "old_ids": tuple(old_ids)})
            conn.execute(text('UPDATE "user_follower" SET remote_user_id = :new_id WHERE remote_user_id IN :old_ids'), {"new_id": new_id, "old_ids": tuple(old_ids)})
            conn.execute(text('UPDATE "community_ban" SET user_id = :new_id WHERE user_id IN :old_ids'), {"new_id": new_id, "old_ids": tuple(old_ids)})
            conn.execute(text('UPDATE "user_note" SET target_id = :new_id WHERE target_id IN :old_ids'), {"new_id": new_id, "old_ids": tuple(old_ids)})
            conn.execute(text('UPDATE "user_block" SET blocked_id = :new_id WHERE blocked_id IN :old_ids'), {"new_id": new_id, "old_ids": tuple(old_ids)})
            conn.execute(text('UPDATE "community_join_request" SET user_id = :new_id WHERE user_id IN :old_ids'), {"new_id": new_id, "old_ids": tuple(old_ids)})
            conn.execute(text('UPDATE "filter" SET user_id = :new_id WHERE user_id IN :old_ids'), {"new_id": new_id, "old_ids": tuple(old_ids)})
            conn.execute(text('UPDATE "report" SET reporter_id = :new_id WHERE reporter_id IN :old_ids'), {"new_id": new_id, "old_ids": tuple(old_ids)})
            conn.execute(text('UPDATE "report" SET suspect_user_id = :new_id WHERE suspect_user_id IN :old_ids'), {"new_id": new_id, "old_ids": tuple(old_ids)})
            conn.execute(text('UPDATE "user_follow_request" SET follow_id = :new_id WHERE follow_id IN :old_ids'), {"new_id": new_id, "old_ids": tuple(old_ids)})

            # Delete the duplicate users
            conn.execute(text('DELETE FROM "user" WHERE id IN :old_ids'), {"old_ids": tuple(old_ids)})

    # Finalize by dropping and recreating the unique index on ap_profile_id
    with op.batch_alter_table('user', schema=None) as batch_op:
        print('Adding unique index...')
        batch_op.drop_index('ix_user_ap_profile_id')
        batch_op.create_index(batch_op.f('ix_user_ap_profile_id'), ['ap_profile_id'], unique=True)

    # ### end Alembic commands ###


def downgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    with op.batch_alter_table('user', schema=None) as batch_op:
        batch_op.drop_index(batch_op.f('ix_user_ap_profile_id'))
        batch_op.create_index('ix_user_ap_profile_id', ['ap_profile_id'], unique=False)

    # ### end Alembic commands ###