rails validate in model that value is inside array
first, change the attribute from type to something else, type is a reserved attrubute name use for Single Table Inheritance and such.
class Thing < ActiveRecord::Base validates :mytype, :inclusion=> { :in => @allowed_types }
ActiveModel::Validations provides a helper method for this. An example call would be:
validates_inclusion_of :type, in: @allowed_typesActiveRecord::Base is already a ActiveModel::Validations, so there is no need to include anything.
http://apidock.com/rails/ActiveModel/Validations/HelperMethods/validates_inclusion_of
Also, @RadBrad is correct that you should not use type as a column name as it is reserved for STI.
Just for those lazy people (like me) to copy the latest syntax:
validates :status, inclusion: %w[pending processing succeeded failed]validates_inclusion_ofis out of date since Rails 3.:inclusion=>hash syntax is out of date since Ruby 2.0.- In favor of
%wfor word array as the default Rubocop option.
With variations:
Default types as a constant:
STATUSES = %w[pending processing succeeded failed]validates :status, inclusion: STATUSESOP's original:
validates :mytype, inclusion: @allowed_types