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我正在嘗試使用ActiveUUID
gem來使我的Survey
表的主鍵成爲UUID。 (MySQL)「MUL」是可接受的「主鍵」嗎?
即使我有:primary_key => true
由於某些原因它仍然將它設置爲MUL
?這是預期的嗎?
遷移:
class CreateSurveys < ActiveRecord::Migration
def change
create_table :surveys, :id => false do |t|
t.references :employee, :null => false
t.uuid :id, :primary_key => true
t.datetime :expired_at
t.timestamps
end
add_index :surveys, :id
end
end
型號:survey.rb
class Survey < ActiveRecord::Base
include ActiveUUID::UUID
belongs_to :employee
validates :employee, :presence => true
end