Generate callback files

lib/paloma/callback_generator.rb

@@ -1,16 +1,61 @@
 module Paloma
+  #
+  # Usage: 
+  #   rails g paloma:add <controller_name>
+  #     - Generates the following:
+  #         - a folder under app/assets/javascripts/callbacks named as <controller_name>
+  #         - callbacks.js inside the folder just made
+  #     - Updates index.js under the callbacks folder
+  #         - adds a line in order to require the callbacks to be made under the recently made folder
+  #
+  #
+  #   rails g paloma:add <controller_name>/<action_name>
+  #     - Generates the following:
+  #         - <action_name>.js file inside the <controller_name> folder
+  #
+  #
+  # Generated Files:
+  #  index.js
+  #    - contains code for requiring all callbacks of all folders
+  #    - always updated when new folders and callback.js files are created
+  #
+  #  <controller_name>/callbacks.js
+  #    - contains code for requiring all callbacks under the same folder <controller_name> 
+  #
+  #  <controller_name>/<action_name>.js
+  #    - actual code to be executed when callback is called
+  #
 
-  class CallbackGenerator < ::Rails::Generators::NamedBase
+  class AddGenerator < ::Rails::Generators::NamedBase
     source_root File.expand_path('../templates', __FILE__)
     
-    def copy_initializer_file
-      copy_file "initializer.rb", "app/assets/javascripts/callbacks/#{file_name}.rb"
-    end
+    CALLBACKS = "app/assets/javascripts/callbacks/"
+    INDEX = CALLBACKS + 'index.js'
     
-    #desc "This generator creates an initializer file at config/initializers"
-    #def create_initializer_file
-    #  create_file "config/initializers/initializer.rb", "# Add initialization content here"
-    #end
+    def create_callback_file
+      file = file_path.split('/')
+      folder = file[0]
+      action = file[1]
+      
+      #index.js on callbacks folder
+      has_index = File.exists? INDEX
+      copy_file 'index.js', INDEX unless has_index
+      
+      #callbacks.js per folder(controller) in callbacks
+      has_callbacks = File.exists? CALLBACKS + "#{folder}/callbacks.js"
+      unless has_callbacks
+        copy_file 'callbacks.js', CALLBACKS + "#{folder}/callbacks.js"
+        File.open(INDEX, 'a+'){|f| f << "\n//= require ./" + folder + '/callbacks' }
+      end
+      
+      #<action>.js on folder(controller) - code for callback
+      has_action = File.exists? CALLBACKS + "#{folder}/#{action}.js"
+      unless (action.nil? || has_action)
+        create_file CALLBACKS + "#{folder}/#{action}.js"
+        File.open(CALLBACKS + "#{folder}/#{action}.js", 'w+') do |f|
+          f.write("Paloma.callbacks['#{folder}/#{action}'] = function(params){\n\n};")
+        end
+      end
+    end    
   end
-
 end

lib/paloma/templates/callbacks.js

@@ -0,0 +1 @@
+//= require_tree .

lib/paloma/templates/index.js

@@ -0,0 +1 @@
+window.Paloma = {callbacks:{}};

lib/templates/initializer.rb

@@ -1,3 +0,0 @@
-# Add initialization content here
-
-INITIALIZER.RB