Merge pull request #88 from kevinmtrowbridge/delayed_paperclip_defaults

Delayed paperclip defaults

Author: Scott Carleton

README.textile

@@ -142,6 +142,26 @@ styles as arguments anymore.  It will delegate to DelayedPaperclip and reprocess
   @user.avatar.reprocess_without_delay!(:medium)
 </code></pre>
 
+h2. Defaults
+
+Global defaults for all delayed_paperclip instances in your app can be defined by changing the
+DelayedPaperclip.options Hash, this can be useful for setting a default 'processing image,' so you
+won't have to define it in every process_in_background definition.
+
+If you're using Rails you can define a Hash with default options in config/application.rb or in any
+of the config/environments/*.rb files on config.delayed_paperclip_defaults, these will get merged into
+DelayedPaperclip.options as your Rails app boots. An example:
+
+module YourApp
+  class Application < Rails::Application
+    # Other code...
+
+    config.delayed_paperclip_defaults = {
+        :url_with_processing => true,
+        :processing_image_url => 'custom_processing.png'
+    }
+  end
+end
 
 h2. What if I'm not using images?
 

lib/delayed_paperclip.rb

@@ -57,7 +57,7 @@ def process_in_background(name, options = {})
         :priority => 0,
         :only_process => only_process_default,
         :url_with_processing => DelayedPaperclip.options[:url_with_processing],
-        :processing_image_url => options[:processing_image_url],
+        :processing_image_url => DelayedPaperclip.options[:processing_image_url],
         :queue => nil
       }.each do |option, default|
 

lib/delayed_paperclip/railtie.rb

@@ -7,10 +7,14 @@ module DelayedPaperclip
 
     # On initialzation, include DelayedPaperclip
     class Railtie < Rails::Railtie
-      initializer 'delayed_paperclip.insert_into_active_record' do
+      initializer 'delayed_paperclip.insert_into_active_record' do |app|
         ActiveSupport.on_load :active_record do
           DelayedPaperclip::Railtie.insert
         end
+
+        if app.config.respond_to?(:delayed_paperclip_defaults)
+          DelayedPaperclip.options.merge!(app.config.delayed_paperclip_defaults)
+        end
       end
     end
   end