This is the best I can do. There's probably an easier way to do it,
but this is my hack:
Here is my 'POST' controller action when the cropping info is passed:
def update_crop
@user = User.find(current_user.id)
@user.crop(params[:x].to_i, params[:y].to_i, params[:h].to_i,
params[:w].to_i)
redirect_to(profile_path, :notice => 'Your profile and avatar
was successfully updated.')
end
Here is the method to add to the User model that contains an "avatar"
image uploader:
def crop(x, y, h, w)
image = Magick::ImageList.new(avatar.current_path)
cropped_image = image.crop(x, y, h, w)
cropped_image.write(avatar.current_path)
avatar.recreate_versions!
end
Basically this just hi-jacks the current one, overwrites it, and then
tells Carrierwave to create the thumbnail again with the new cropped
version. Seems to work.
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