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我想手动将值设置为我的表中不是主键的字段“ID”。每次我用.ID属性和值分配给它,它就会被分配到主键(abc_id),而不是“ID”Rails:如何将值设置为不是主键的“id”列
table/model: MyModel
primary key: abc_id
another column: id
我尝试以下保存的ID,但他们没有办法似乎工作。
test = MyModel.new
test.id = 555
==> updates abc_id
test.write_attribute(:id, 555)
==> private method not available
test.update_attribute(:id,555)
==> updates abc_id -->ActiveRecord::StatementInvalid: PG::NotNullViolation: ERROR: null value in column "id" violates not-null constraint
test.attributes = {id: 555}
==> no error but doesn't do anything
test.send(:attributes=, id: 555)
==> saves other attributes but not id
=> nil
我怎么能值分配给“ID”,因为我总是得到PG::NotNullViolation: ERROR: null value in column "id" violates not-null constraint
错误,而试图保存记录