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copied!<p>As I said above, I had a similar problem with Mongoid, <strong>Carrierwave</strong> and GridFS.<br> My solution is super hacky but it worked for me.<br> I had an Image class which is where my image was mounted </p> <pre><code>class Image include Mongoid::Document include Mongoid::Timestamps field :title field :image field :order mount_uploader :image, ImageUploader embedded_in :article end class Article include Mongoid::Document ... embeds_one :image ... end </code></pre> <p>My carrierwave uploader wanted the attributes sent to it with the key of the mount uploader (image). </p> <pre><code>Image.create( :image => image_attributes) </code></pre> <p>But the article's new/edit form created something that looked like:</p> <pre><code>:article => { :image => #ActionDispatch... } </code></pre> <p>instead of</p> <pre><code>:article => { :image => { :image => #ActionDispatch... } } </code></pre> <p>so my solution was to change the name of the field in the form to</p> <pre><code>file_field :article, :photo </code></pre> <p>and then add a photo setter to the article class that created an image</p> <pre><code>model Article include Mongoid::Document ... def photo=(attrs) create_image(:image => attrs) end end </code></pre> <p>I tried this with image= but it infinitely recursed and did evil things.<br> I also tried this</p> <pre><code>file_field "article[image]", :image </code></pre> <p>without the setter and it didn't raise an exception but it also didn't save my image.</p> <p>as far as i know, paperclip is pretty similar in these regards. Maybe this will work for someone or someone can clean up my mess </p>

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