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PORails paperclip URL upload problem & How to make it DRY
 

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  1. PORails paperclip URL upload problem & How to make it DRY
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    <p>I am trying to create URL upload with paperclip. </p> <p>I have followed this guide: <a href="http://trevorturk.com/2008/12/11/easy-upload-via-url-with-paperclip/" rel="nofollow">http://trevorturk.com/2008/12/11/easy-upload-via-url-with-paperclip/</a></p> <p>The problem is that nothing gets uploaded when I use the image_url fields. I know my code isnt very dry therefor it would be nice if someone had, some tips to rewrite the code.</p> <p>I have 2 attached images and therefor 2 image URLs.</p> <p>My konkurrancers table: </p> <pre><code>photo_file_name varchar(255) photo_content_type varchar(255) photo_file_size int(11) photo_updated_at datetime photo2_file_name varchar(255) photo2_content_type varchar(255) photo2_file_size int(11) photo2_updated_at datetime image_remote_url varchar(255) image_remote_url_2 varchar(255) </code></pre> <p>My konkurrancer model:</p> <pre><code>class Konkurrancer &lt; ActiveRecord::Base has_attached_file :photo, :url =&gt; "/public/images/billeder/photo/:id/:basename.:extension", :path =&gt; ":rails_root/public/images/billeder/photo/:id/:basename.:extension" has_attached_file :photo2, :url =&gt; "/public/images/billeder/photo2/:id/:basename.:extension", :path =&gt; ":rails_root/public/images/billeder/photo2/:id/:basename.:extension" before_validation :download_remote_image, :if =&gt; :image_url_provided? before_validation :download_remote_image_2, :if =&gt; :image_url_2_provided? validates_presence_of :image_remote_url, :if =&gt; :image_url_provided?, :message =&gt; 'is invalid or inaccessible' validates_presence_of :image_remote_url_2, :if =&gt; :image_url_2_provided?, :message =&gt; 'is invalid or inaccessible' private def image_url_provided? !self.image_url.blank? end def image_url_2_provided? !self.image_url_2.blank? end def download_remote_image self.photo = do_download_remote_image self.image_remote_url = image_url end def download_remote_image_2 self.photo2 = do_download_remote_image_2 self.image_remote_url_2 = image_url_2 end def do_download_remote_image io = open(URI.parse(image_url)) def io.original_filename; base_uri.path.split('/').last; end io.original_filename.blank? ? nil : io rescue # catch url errors with validations instead of exceptions (Errno::ENOENT, OpenURI::HTTPError, etc...) end def do_download_remote_image_2 io = open(URI.parse(image_url_2)) def io.original_filename; base_uri.path.split('/').last; end io.original_filename.blank? ? nil : io rescue # catch url errors with validations instead of exceptions (Errno::ENOENT, OpenURI::HTTPError, etc...) end end </code></pre> <p>My controller create action:</p> <pre><code> def create @konkurrancer = Konkurrancer.new(params[:konkurrancer]) respond_to do |format| if @konkurrancer.save format.html { redirect_to(:admin_konkurrancers, :notice =&gt; 'Konkurrancer was successfully created.') } format.xml { render :xml =&gt; :admin_konkurrancers, :status =&gt; :created, :location =&gt; @konkurrancer } else format.html { render :action =&gt; "new" } format.xml { render :xml =&gt; @konkurrancer.errors, :status =&gt; :unprocessable_entity } end end end </code></pre> <p>My form: </p> <pre><code>&lt;%= simple_form_for [:admin, @konkurrancer], :html =&gt; { :multipart =&gt; true } do |f| %&gt; &lt;%= f.label :upload_125x125 %&gt; &lt;%= f.file_field :photo, :label =&gt; '125x125', :style =&gt; 'width:250;' %&gt; &lt;%= f.input :image_url_2, :label =&gt; 'URL 125x125', :style =&gt; 'width:250;' %&gt; &lt;%= f.label :upload_460x60 %&gt; &lt;%= f.file_field :photo2, :label =&gt; '460x58', :style =&gt; 'width:250;' %&gt; &lt;%= f.button :submit, :value =&gt; 'Create konkurrence' %&gt; &lt;% end %&gt; </code></pre>
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