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root / db / migrate / 098_set_topic_authors_as_watchers.rb @ 441:cbce1fd3b1b7
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class SetTopicAuthorsAsWatchers < ActiveRecord::Migration |
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def self.up |
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# Sets active users who created/replied a topic as watchers of the topic
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# so that the new watch functionality at topic level doesn't affect notifications behaviour
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Message.connection.execute("INSERT INTO #{Watcher.table_name} (watchable_type, watchable_id, user_id)" + |
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" SELECT DISTINCT 'Message', COALESCE(m.parent_id, m.id), m.author_id" +
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" FROM #{Message.table_name} m, #{User.table_name} u" +
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" WHERE m.author_id = u.id AND u.status = 1")
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end
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def self.down |
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# Removes all message watchers
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Watcher.delete_all("watchable_type = 'Message'") |
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end
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end
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