Paperclip Scopes
A nifty pair of scopes for when you’re working with attachments on Paperclip that are images or other type of content.
# For finding images as in Article.attachments.images
scope :images, where("file_content_type LIKE ?", "image%")
# For finding other files Article.attachments.docs
scope :docs, where("file_content_type NOT LIKE ?", "image%")
