Validate uniquiness before save, with condition

Asked Jul 31 '18 at 16:52

Active Jul 31 '18 at 17:30

Viewed 46 times

I have a class called JobOffer that belongs to a Source. Like this:

 class JobOffer < ApplicationRecord
    include SoftDeletable
    belongs_to :source
    validates :email, uniqueness: true
    validates :title, presence: true, if: :unique_from_source?

    #for each kind of source, we will have uniquiness validation
    def unique_from_source?

      if self.source.is_a? WeWorkRemotelySource
          we_work_remotely_uniquiness
      end
    end

    def we_work_remotely_uniquiness

    end
end

I want to, depending on the type of the Source make some validations before save, to avoid duplicate fields. In this specific case, I want that, if:

self.source.is_a? WeWorkRemotelySource

Validates if the title AND the email are the same. If the title and email are the same we will NOT SAVE this entity. This is the rule of uniquiness for this specific case.

How can I do this?

edited Jul 31 '18 at 17:30

asked Jul 31 '18 at 16:52

Fernando Maymone

1

Have you looked into the [:scope](https://guides.rubyonrails.org/active_record_validations.html) option? – jvillian Jul 31 '18 at 16:56
1

Check if this can help: https://stackoverflow.com/questions/42495133/rails-validation-if-one-condition-is-true – iGian Jul 31 '18 at 16:58
Thanks Gian. It can help. In my case, I will need for each type of source, a different validation. – Fernando Maymone Jul 31 '18 at 17:02
1

@FernandoMaymone then maybe look into [`with_options`](https://api.rubyonrails.org/?q=with_options) too – engineersmnky Jul 31 '18 at 20:58

Validate uniquiness before save, with condition

0 Answers0