Method: Paperclip::Attachment#assign

Defined in:
lib/paperclip/attachment.rb

#assign(uploaded_file) ⇒ Object

What gets called when you call instance.attachment = File. It clears errors, assigns attributes, and processes the file. It also queues up the previous file for deletion, to be flushed away on #save of its host. In addition to form uploads, you can also assign another Paperclip attachment:

new_user.avatar = old_user.avatar


99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
 
# File 'lib/paperclip/attachment.rb', line 99

def assign(uploaded_file)
  @file = Paperclip.io_adapters.for(uploaded_file,
                                    @options[:adapter_options])
  ensure_required_accessors!
  ensure_required_validations!

  if @file.assignment?
    clear(*only_process)

    if @file.nil?
      nil
    else
      assign_attributes
      post_process_file
      reset_file_if_original_reprocessed
    end
  else
    nil
  end
end