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26 lines
675 B
Ruby
26 lines
675 B
Ruby
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class CreateTopicRevisions < ActiveRecord::Migration
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def up
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create_table :topic_revisions do |t|
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t.belongs_to :user
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t.belongs_to :topic
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t.text :modifications
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t.integer :number
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t.timestamps
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end
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execute "INSERT INTO topic_revisions (user_id, topic_id, modifications, number, created_at, updated_at)
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SELECT user_id, versioned_id, modifications, number, created_at, updated_at
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FROM versions
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WHERE versioned_type = 'Topic'"
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change_table :topic_revisions do |t|
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t.index :topic_id
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t.index [:topic_id, :number]
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end
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end
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def down
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drop_table :topic_revisions
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end
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end
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