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POPaperclip: Stay put on edit
 

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    <p>When a user edits something in my application, they're forced to re-upload their image via paperclip even if they aren't changing it. Failing to do so will cause an error, since I validate_presence_of :image. This is quite annoying.</p> <p>How can I make it so Paperclip won't update its attributes if a user simply doesn't supply a new image on an edit?</p> <p>The photo controller is fresh out of Rails' scaffold generator. The rest of the source code is provided below.</p> <p><strong>models/accommodation.rb</strong></p> <pre><code>class Accommodation &lt; ActiveRecord::Base attr_accessible :photo validates_presence_of :photo has_one :photo has_many :notifications belongs_to :user accepts_nested_attributes_for :photo, :allow_destroy =&gt; true end </code></pre> <p><strong>controllers/accommodation_controller.rb</strong></p> <pre><code>class AccommodationsController &lt; ApplicationController def index @accommodations = Accommodation.all end def show @accommodation = Accommodation.find(params[:id]) rescue ActiveRecord::RecordNotFound flash[:error] = "Accommodation not found." redirect_to :home end def new @accommodation = current_user.accommodations.build @accommodation.build_photo end def create @accommodation = current_user.accommodations.build(params[:accommodation]) if @accommodation.save flash[:notice] = "Successfully created your accommodation." redirect_to @accommodation else @accommodation.build_photo render :new end end def edit @accommodation = Accommodation.find(params[:id]) @accommodation.build_photo rescue ActiveRecord::RecordNotFound flash[:error] = "Accommodation not found." redirect_to :home end def update @accommodation = Accommodation.find(params[:id]) if @accommodation.update_attributes(params[:accommodation]) flash[:notice] = "Successfully updated accommodation." redirect_to @accommodation else @accommodation.build_photo render :edit end end def destroy @accommodation = Accommodation.find(params[:id]) @accommodation.destroy flash[:notice] = "Successfully destroyed accommodation." redirect_to :inkeep end end </code></pre> <p><strong>models/photo.rb</strong></p> <pre><code>class Photo &lt; ActiveRecord::Base attr_accessible :image, :primary belongs_to :accommodation has_attached_file :image, :styles =&gt; { :thumb=&gt; "100x100#", :small =&gt; "150x150&gt;" } end </code></pre>
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    1. CO"... edits something in my application..." is quite vague. Could you perhaps complement with the code from your edit/update action and the model you attach paperclip to?
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    2. COI'll update my post to include the code. I meant edit a record for the associated model.
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