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 id FROM "user" 
            WHERE ap_profile_id IN (
                SELECT ap_profile_id FROM "user" 
                GROUP BY ap_profile_id 
                HAVING COUNT(*) > 1
            )
        ''')

    conn = op.get_bind()
    dupes = conn.execute(dupes_query).scalars()
    print('Cleaning up duplicate users, this may take a while...')
    for d in dupes:
        user_query = text('SELECT id, ap_profile_id FROM "user" WHERE id = :id')
        user = conn.execute(user_query, {"id": d}).first()

        if not user:
            continue

        # Find users with the same ap_profile_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": user.ap_profile_id}).fetchall()

        first = True
        new_id = None

        for u in users:
            if first:
                first = False
                new_id = u.id
                continue

            if new_id:
                old_id = u.id

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

                # Delete the duplicate user
                conn.execute(text('DELETE FROM "user" WHERE id = :old_id'), {"old_id": old_id})

    # ### commands auto generated by Alembic - please adjust! ###
    with op.batch_alter_table('user', schema=None) as batch_op:
        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 ###