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How to detect if a new file is attached with ActiveStorage and has_many_attached?


How can I rename a database column in a Ruby on Rails migration?ActiveRecord (Rails 2.3.8) - Update existing, add new record when updating nested attributeshow to transfer this code to model?Rails :before_save, either create or update record and return false?paperclip removes existing attachment on updateHow to fetch previous values of associated records?ActiveStorage File Attachment ValidationRuby on Rails before_save is causing an update directly after creating a new recordRails ActiveStorage: DirectUpload callbacksHow to stop create in rails 5 without rolling back changes?






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0















I'm trying to detect if a new file is attached to my record.
It works perfectly when I create a new record but not when I update an already existing record.



This is the my code in my model:



class Accreditation < ApplicationRecord

has_many_attached(:documents)
before_save(:update_state)

private

def update_state
return unless documents.size.positive? && documents.any?(&:new_record?)

documents_uploaded
end
end


How can I detect if a record is created with at least one document AND when the user updates his record adding a document?










share|improve this question




























    0















    I'm trying to detect if a new file is attached to my record.
    It works perfectly when I create a new record but not when I update an already existing record.



    This is the my code in my model:



    class Accreditation < ApplicationRecord

    has_many_attached(:documents)
    before_save(:update_state)

    private

    def update_state
    return unless documents.size.positive? && documents.any?(&:new_record?)

    documents_uploaded
    end
    end


    How can I detect if a record is created with at least one document AND when the user updates his record adding a document?










    share|improve this question
























      0












      0








      0








      I'm trying to detect if a new file is attached to my record.
      It works perfectly when I create a new record but not when I update an already existing record.



      This is the my code in my model:



      class Accreditation < ApplicationRecord

      has_many_attached(:documents)
      before_save(:update_state)

      private

      def update_state
      return unless documents.size.positive? && documents.any?(&:new_record?)

      documents_uploaded
      end
      end


      How can I detect if a record is created with at least one document AND when the user updates his record adding a document?










      share|improve this question














      I'm trying to detect if a new file is attached to my record.
      It works perfectly when I create a new record but not when I update an already existing record.



      This is the my code in my model:



      class Accreditation < ApplicationRecord

      has_many_attached(:documents)
      before_save(:update_state)

      private

      def update_state
      return unless documents.size.positive? && documents.any?(&:new_record?)

      documents_uploaded
      end
      end


      How can I detect if a record is created with at least one document AND when the user updates his record adding a document?







      ruby-on-rails rails-activestorage






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Mar 26 at 15:45









      escanxrescanxr

      4541 silver badge14 bronze badges




      4541 silver badge14 bronze badges






















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