我的回形针的crop_x值未在我通过回形针保存的模型中更新

Question

I am saving my avatar via paperclip after cropping my image via JCrop. The parameters crop_x , crop_y , crop_w , crop_h has is coming properly but on doing :

status = @user.update_attributes(params[:user])

the crop values are not getting updated. The values are still remaining nil.

I have :after_update

if avatar_processed.blank?
  self.avatar_processed = true
  avatar.reprocess!
end

Answer 1

Firstly, in your User model you should have :

attr_accessor :crop_x, :crop_y, :crop_w, :crop_h

Secondly, if you're using a recent version of Paperclip, calling "avatar.reprocess!" in a "after_update" can create an infinite loop. You should use instead something like this:

if avatar_processed.blank?
  self.avatar_processed = true
  avatar.assign(avatar)
  avatar.save
end

Hope it will help.