CODEWITHSUNDEEP
ruby-on-railspaperclip
Jason
Jason

Reputation: 23395

How to write a script (in Ruby / Rails) that will regenerate all of the thumbnails for my new paperclip styles?

I have an Image model with the following two styles:

:original => ['500x400!'],
:thumb    => ['75x54!',:jpg]

The last style, :thumb, I have just modified the dimensions of to make thubnails larger.

This works great for new images uploaded by users but I'm not sure how to have paperclip loop through all my existing thumbnail images and resize them.

Hoping someone can give some advice about how this to this.

Thanks!

Upvotes: 4

Views: 877

Answers (2)

Julian Maicher
Julian Maicher

Reputation: 1793

There is a rake task for that:

rake paperclip:refresh:thumbnails CLASS=YourModel

To be more in control you could also manually reprocess thumbnails for specific instances:

some_model_instances.each do |instance|
  instance.photo.reprocess!
end

Upvotes: 7

dnch
dnch

Reputation: 9605

Paperclip comes with a rake task that does exactly this:

rake paperclip:refresh RAILS_ENV=production CLASS=Photo

In this example, the above will re-generate all attachments belonging to the Photo class.

Upvotes: 4

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