discourse/db/migrate/20120812235417_retire_expre...

21 lines
482 B
Ruby

class RetireExpressions < ActiveRecord::Migration
def up
execute 'insert into post_actions (post_action_type_id, user_id, post_id, created_at, updated_at)
select
case
when expression_index=1 then 3
when expression_index=2 then 4
when expression_index=3 then 2
end
, user_id, post_id, created_at, updated_at from expressions'
drop_table 'expressions'
drop_table 'expression_types'
end
def down
raise ActiveRecord::IrriversableMigration
end
end