I've been using paperclip to upload and auto-resize photos in my Rails app, and I love it. Only problem is about every other month my crazy manager decides he wants a new size to display the photos in. So I add a new style in my Photo model and all is good for new photos, but the pre-existing photos are now a problem. Now that I'm starting to have more than a few photos to deal with I need a programmatic way to resize existing photos. Perhaps there is some paperclip trick for such a thing? I'd really rather not have to figure out RMagick and write a script myself if I don't have to.
You want the reprocess!
method of Paperclip::Attachment. See the docs.
class User < ActiveRecord::Base
has_attached_file :avatar, :styles => { :medium => "300x300>", :thumb => "100x100>" }
end
# Console...
>> User.find_each { |u| u.avatar.reprocess! }
Also, according to the comments before the reprocess!
method, there's a paperclip:refresh Rake task, which might be easier.
try this rake task provided by paperclip
rake paperclip:refresh:missing_styles
Ref: https://github.com/thoughtbot/paperclip#post-processing
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