Using Shrine with Solidus

README.md

1. First, configure Shrine. I'll leave this exercise to the reader as it's very dependent on how you'll be storing your files (on a server, on S3, etc.)

2. Define an alternate attachment module (instead of the ActiveStorage or Paperclip one):

   module ShrineImageAttachment
     extend ActiveSupport::Concern
   
     included do
       # FIXME: Use whatever store you have defined that you want to use for product images. To avoid caching issues, I recommend using some kind of public store.
       include Shrine::Attachment(:attachment, store: :public_images)
     end
   
     class_methods do
       def attachment_definitions
         # FIXME: This is required by (if I remember correctly) the API templates. It should be updated to actually reflect the available styles.
         {attachment: {styles: {}}}
       end
     end
   
     def url(style = default_style)
       # FIXME: Currently this just returns the same URL for the attachment every time, regardless of what "style" (like "thumbnail") is requested.
       attachment_url || "noimage/#{style}.png"
     end
   end

3. Configure Solidus to use the attachment module. In your initializer where you configure Solidus, add config.image_attachment_module = "ShrineImageAttachment". You may also want to set config.taxon_attachment_module.