discourse/db/migrate/20120507144132_create_expre...

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# frozen_string_literal: true
class CreateExpressions < ActiveRecord::Migration[4.2]
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def change
create_table :expressions, id: false, force: true do |t|
t.integer :parent_id, null: false
t.string :parent_type, null: false, limit: 50
t.integer :expression_type_id, null: false
t.integer :user_id, null: false
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t.timestamps null: false
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end
add_index :expressions, [:parent_id, :parent_type, :expression_type_id, :user_id], unique: true, name: "expressions_pk"
end
end