Rails 4.2中的枚举验证不起作用

Question

My User model looks similar to this:

class User < ActiveRecord::Base
  enum type: [:admin, :reviewer, :super_admin ]
  validates :type, presence: true
  validates :type, inclusion: { in: User.types.keys }
end

When I submit anything outside the enum values, the validation doesn't stop the code from running, and I get a 500 error as a response with the following error:

'something submitted' is not a valid type

If I submit a blank field, the validation works:

"type": [
    "can't be blank",
    "is not included in the list"
]

What am I doing wrong? My code looks identical to this answer

Answer 1

Rails enum doesn't have in-built validation.

The current focus of AR enums is to map a set of states (labels) to an integer for performance reasons. Currently assigning a wrong state is considered an application level error and not a user input error. That's why you get an ArgumentError.

You still can set nil or an empty string to the enum attribute without raising an error.