Sample Usage

Note: Cropping and Rotating are done in different views.

user.rb

after_update :reprocess_avatar, :if => :cropping?

has_attached_file :avatar, :styles => { :thumb => {:geometry => "100x100#", :processors => [:croppertator]}, :large => {:geometry => "500x500>"} }

attr_accessor :rotation_degrees, :rotate

def rotate!(degrees = 90) self.rotation += degrees self.rotation -= 360 if self.rotation >= 360 self.rotation += 360 if self.rotation <= -360

self.rotate = true self.avatar.reprocess! self.save end

def rotating? !self.rotation.nil? and self.rotate end

def cropping? !crop_x.blank? && !crop_y.blank? && !crop_w.blank? && !crop_h.blank? end

def avatar_geometry(style = :original)
@geometry ||= {}
@geometry[style] ||= Paperclip::Geometry.from_file(avatar.path(style))
end

def ratio avatar_geometry(:original).width/avatar_geometry(:large).width end

private

def reprocess_avatar avatar.reprocess!
end