CODEWITHSUNDEEP
ruby-on-railsruby-on-rails-3.2paperclip
Allen Liu
Allen Liu

Reputation: 4038

Dynamic options for Paperclip based on the content type

I am planning to use single table inheritance using the Paperclip gem that would be dynamic based on the content type.

class Document < ActiveRecord::Base
    has_attached_file :file, photo_options #if content type is an image
    has_attached_file :file, pdf_options #if content type is a pdf file
end

class Photo < Document
    # photo specific code
end

class Pdf < Document
    # pdf specific code
end

Is it possible to have the has_attached_file be dynamic based on the content type? One use case would be for when trying to create a new instance of Document from a file form upload:

@document = Document.new params[:document]

I hope my question makes sense. Thanks.

Upvotes: 0

Views: 159

Answers (1)

fedebns
fedebns

Reputation: 494

You can do it like:

class Document < ActiveRecord::Base
end

class Photo < Document
  has_attached_file :file, photo_options #if content type is an image
  # photo specific code
end

class Pdf < Document
  has_attached_file :file, pdf_options #if content type is a pdf file
  # pdf specific code
end

class DocumentsController < ApplicationController
  #Assuming is the new method.
  def new
     @document = params[:document_type].classify.safe_constantize.new
  end
end

And use @document in your form.

Upvotes: 1

Related Questions