- class SetTopicAuthorsAsWatchers < ActiveRecord::Migration
- def self.up
- # Sets active users who created/replied a topic as watchers of the topic
- # so that the new watch functionality at topic level doesn't affect notifications behaviour
- Message.connection.execute("INSERT INTO #{Watcher.table_name} (watchable_type, watchable_id, user_id)" +
- " SELECT DISTINCT 'Message', COALESCE(m.parent_id, m.id), m.author_id" +
- " FROM #{Message.table_name} m, #{User.table_name} u" +
- " WHERE m.author_id = u.id AND u.status = 1")
- end
-
- def self.down
- # Removes all message watchers
- Watcher.delete_all("watchable_type = 'Message'")
- end
- end
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