from django.db import migrations class Migration(migrations.Migration): dependencies = [ ('zerver', '0266_userpresence_realm'), ] operations = [ migrations.RunSQL( """ UPDATE zerver_userpresence SET realm_id = zerver_userprofile.realm_id FROM zerver_userprofile WHERE zerver_userprofile.id = zerver_userpresence.user_profile_id; """, reverse_sql='UPDATE zerver_userpresence SET realm_id = NULL', elidable=True), ]