CODEWITHSUNDEEP
ruby-on-railsrubyvalidation
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Reputation: 7622

Rails Validation Inclusion dynamically

class A
  include ActiveModel::Validations
  attr_reader :operator
  def initialize(operator)
    @operator = operator
    validates_inclusion_of :operator, in => operators
  end

  def operators
    ....
  end
end

Here I want to validate the operator for inclusion_of dynamically. the method operators returns an array of operators which is dynamic.

The above code is not working. How can I implement the validation dynamically? r

Upvotes: 4

Views: 5759

Answers (1)

Michał Kwiatkowski
Michał Kwiatkowski

Reputation: 9764

You may try:

def initialize(operator)
  self.class.class_eval do
    validates_inclusion_of :operator, :in => operators
  end
end

although I don't understand why can't you just define it at the class level. Note that argument to :in can be a lambda, for details refer to: http://apidock.com/rails/ActiveModel/Validations/HelperMethods/validates_inclusion_of

Upvotes: 5

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