CODEWITHSUNDEEP
ruby-on-railsfile-uploadruby-on-rails-4paperclip
Xeen
Xeen

Reputation: 7003

Paperclip undefined method `title_file_name' error in Rails 4.0.1

I installed it by following the manual on paperclip github page and I get the given error. What am I doing wrong?

I have 4 input fields: title (text_field), description (text_area), price (text_field) and image (file_field). Why am I even getting this error with the prefix title in it? What has the title field got to do with it, are there any conflicts maybe? I did create and run the migrations so this is realy kind of weird I think.

Any help appreciated. Thanks.

EDIT:

The migration is as follows:

class AddImageColumnsToProducts < ActiveRecord::Migration
  def change
    add_attachment :products, :image
  end
end

It results like so:

image_file_name varchar(255)
image_content_type varchar(255) 
image_file_size int(11)
image_updated_at datetime

enter image description here

Model:

class Product < ActiveRecord::Base
    has_attached_file   :image, :styles => { :medium => "600x600>", :thumb => "258x258>" }, 
                        :default_url => "images/:style/:slug.png"
    validates :title, :content, :image, :attachment_presence => true
    validates_with AttachmentPresenceValidator, :attributes => :image
end

Controller:

  def create
    @product = Product.new(product_params)
    @product.image = params[:product][:image]

    respond_to do |format|
      if @product.save
        format.html { redirect_to @product, notice: 'Product was successfully created.' }
        format.json { render action: 'show', status: :created, location: @product }
      else
        format.html { render action: 'new' }
        format.json { render json: @product.errors, status: :unprocessable_entity }
      end
    end
  end

Upvotes: 0

Views: 160

Answers (1)

Satya Kalluri
Satya Kalluri

Reputation: 5214

The issue is with your validation. The line which says 

validates :title, :content, :image, :attachment_presence => true

assumes title, content & image as 3 image-based attributes. But, I understand that only 'image' is the image-based field. So, your code should rather be:

validates :title, :content, :presence=>true
validates :image, :attachment_presence => true

Also, I don't see the 'content' field in the request-log. I guess, you mean 'description'. Make sure you have the same attribute-names in the model-validations, database-schema & view files.

Upvotes: 1

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