add custom field feature and fix some error

app/controllers/admin/asks_controller.rb

@@ -1,9 +1,12 @@
 # encoding: utf-8
 class Admin::AsksController < OrbitAdminController
-  include Admin::AsksHelper
+  helper Admin::AsksHelper
   before_action ->(module_app = @app_title) { set_variables module_app }
   before_action :set_askquestion, only: [:edit, :destroy, :update]
-
+  layout :compute_layout
+  def compute_layout
+    'back_end_with_jquery_first'
+  end
   def initialize
     super
     @app_title = "ask"
@@ -26,7 +29,24 @@ class Admin::AsksController < OrbitAdminController
         params[:filters][:identity].blank? ? [] : params[:filters][:identity] rescue []
     end
   end
-
+  def setting_save
+    ask_setting = AskSetting.first
+    p1 = ask_setting_params
+    ask_setting.update_attributes(p1)
+    redirect_to '/admin/asks'
+  end
+  def setting
+    @ask_setting = AskSetting.first
+    @ask_setting = AskSetting.create() if @ask_setting.nil?
+    @url = setting_save_admin_asks_path
+  end
+  def get_new_setting_index
+    ask_setting_index = AskSettingIndex.first
+    ask_setting_index = AskSettingIndex.create() if ask_setting_index.nil?
+    ask_setting_index.key = ask_setting_index.key + 1
+    ask_setting_index.save
+    render :json => {key: ask_setting_index.key.to_i}
+  end
   def index
     @tags = @module_app.tags
     @categories = @module_app.categories
@@ -74,7 +94,8 @@ class Admin::AsksController < OrbitAdminController
   end
 
   def update
-    @ask_question.update_attributes(params.require(:ask_question).permit!)
+    ask_question_param = params.require(:ask_question).permit!
+    @ask_question.update_attributes(ask_question_param)
     if @ask_question.send_email?
       build_email(@ask_question)
     end
@@ -149,4 +170,24 @@ class Admin::AsksController < OrbitAdminController
   def set_askquestion
     @ask_question = AskQuestion.find(params[:id])
   end
+  private
+    def ask_setting_params
+      param = params.require('ask_setting').permit!
+      param_clone = param.clone
+      param_clone['default_setting'].each { |k, v| param_clone['default_setting'][k] = (v == 'true'? true : false) } 
+      param_clone.delete('custom_fields')
+      ask_setting = AskSetting.first
+      custom_fields = ask_setting['custom_fields'].clone
+      params_custom_fields = (params.require('ask_setting').require('custom_fields') rescue {})
+      params_custom_fields.each do |k,v|
+        custom_fields[k] = v
+      end
+      field_to_delete = params['delete_field'].to_s.split(',').select{|v| !v.empty?}
+      field_to_delete.each do |k|
+        if custom_fields.keys.include? k
+          custom_fields[k]['delete'] = true
+        end
+      end
+      param_clone.merge({custom_fields: custom_fields})
+    end
 end