Active Storage Remove Attachments

README.md

ActiveStorageRemove

Do you need remove files in the active_storage rails?

Use this files :)

active_storage_remove.rb

# frozen_string_literal: true

module ActiveStorageRemove
  extend ActiveSupport::Concern

  class_methods do
    # In the controller set permit params
    # params.require(:model).permit(:remove_avatar)
    #
    # In the model
    # class Diarist < ApplicationRecord
    #   include ActiveStorageRemove
    #
    #   has_one_attached :avatar
    #   storage_remove %i(avatar)
    # end
    #
    def storage_remove(keys)
      instance_eval do    
        keys.each do |key|
          attr_accessor :"remove_#{key.to_s}"

          after_save :"purge_#{key}", if: -> { send(:"remove_#{key}").__send__(:to_i) == 1 }
          define_method(:"purge_#{key}") { send(key.to_sym).__send__(:purge_later) }
        end
      end
    end
  end
end

diarist.rb

# frozen_string_literal: true

class Diarist < ApplicationRecord
  include ActiveStorageRemove
  
  storage_remove %i(avatar).freeze
  
  has_one_attached :avatar
end

diarists_controller.rb

# frozen_string_literal: true

class DiaristsController < ApplicationController
  ....

  def resource_params
    params.require(:diarist).permit(:remove_avatar, :avatar)
  end
end