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PORails 3 Custom Class Question
 

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  1. PORails 3 Custom Class Question
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    <p>I am trying to create a separate model class for image uploading, which was previously in the object's controller. I also want to make it agnostic, so I can upload images using one class from multiple objects.</p> <p>In my original object's model class, I have the following now:</p> <pre><code>class Object &lt; ActiveRecord::Base after_save :photo_store delegate :has_photo?, :photo, :photo_path, :store_photo, :photo_filename, :to =&gt; :photo_store def photo_store PhotoStore.new(self) end end </code></pre> <p>Then, the PhotoStore class looks like this:</p> <pre><code>class PhotoStore attr_reader :object def initialize(object) @object = object end def photo=(file_data) unless file_data.blank? @file_data = file_data self.extension = file_data.original_filename.split('.').last.downcase end end PHOTO_STORE = File.join RAILS_ROOT, 'public', 'photo_store' def photo_filename File.join PHOTO_STORE, "#{id}.#{extension}" end def photo_path "/photo_store/#{id}.#{extension}" end def has_photo? File.exists? photo_filename end private def store_photo if @file_data FileUtils.mkdir_p PHOTO_STORE File.open(photo_filename, 'wb') do |f| f.write(@file_data.read) end end end end </code></pre> <p>However, this throws the error below when I try and use the has_photo? method in the object's view.</p> <blockquote> <p>undefined local variable or method `id' for #</p> </blockquote> <p>Do I need to put some other type of relationship in place between the Object and PhotoStore?</p> <p>And a separate question: What's the best way to make this agnostic? Since it uses just the ID of the object, I could just include the Object's name in the filename, but is that the best way to do it?</p> <p>Thanks!</p>
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    1. USJonathon Reinhart
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