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