canvas-lms/db/migrate/20110830152834_conversation...

20 lines
494 B
Ruby

class ConversationsCountFix < ActiveRecord::Migration
def self.up
execute "UPDATE conversation_participants SET workflow_state = 'read' WHERE workflow_state = 'unread' AND last_message_at IS NULL"
execute <<-SQL
UPDATE users
SET unread_conversations_count = (
SELECT COUNT(*)
FROM conversation_participants
WHERE workflow_state = 'unread'
AND last_message_at IS NOT NULL
AND user_id = users.id
)
SQL
end
def self.down
end
end