updates for qr handling

app/controllers/user_controller.rb

@@ -12,14 +12,29 @@ class UserController < ApplicationController
   def create_list
     @table = Table.find(params[:table_id])
     if @table.occupied?
-      redirect_to root_path, alert: t('table.is_occupied')
+      respond_to do |format|
+        format.html { redirect_to root_path, alert: t('table.is_occupied') }
+        format.json { render json: js_alert(t('messages.table_is_occupied'))}
+      end
     else
       @list = List.new(table: @table, supplier_id: @table.supplier_id)
       @list.add_user current_user
       #@list.add_user(current_user)
       @list.save
       session[:active_list_id] = @list.id
-      redirect_to user_list_products_path
+      respond_to do |format|
+        format.html { redirect_to user_list_products_path }
+        format.json { render json: js_notice('table_created')}
+      end
+    end
+  end
+
+  def table_info
+    @table = Table.find(params[:table_id])
+    respond_to do |format|
+      format.json do
+        render json: {occupied: @table.occupied?}
+      end
     end
   end
 
@@ -81,8 +96,13 @@ class UserController < ApplicationController
   def list_info
     respond_to do |format|
       format.json do
-        render json: {list_active: false} and return unless list.present?
-        render json: list.as_json.merge(list_active: true)
+        if !list.try(:active?)
+          session[:active_list_id] = nil
+          render json: {list_active: false}
+          return
+        else 
+          render json: list.as_json.merge(list_active: list.active? )
+        end
       end
     end
   end
@@ -94,7 +114,7 @@ class UserController < ApplicationController
         render json: {list_active: false} and return unless list.present?
         list.needs_help = true
         list.save
-        render json: list.as_json.merge(list_active: true)
+        render json: list.as_json.merge(list_active: list.active?)
       end
     end
   end
@@ -106,7 +126,7 @@ class UserController < ApplicationController
         render json: {list_active: false} and return unless list.present?
         list.needs_payment = true
         list.save
-        render json: list.as_json.merge(list_active: true)
+        render json: list.as_json.merge(list_active: list.active?)
       end
     end
   end
@@ -134,20 +154,17 @@ class UserController < ApplicationController
 
 
   def order_selected_products
+    @list = list
     respond_to do |format|
       format.html do
-        redirect_to(root_path, alert: t('messages.cannot_order_without_list_id')) and return if params[:list_id].blank?
-        @list = List.find(params[:list_id])
         redirect_to(root_path, alert: t('messages.cannot_order_on_non_active_list')) and return unless @list.active?
         @list.place_order current_user, params[:products]
         redirect_to root_path, notice: t('messages.order_is_placed')
       end
       format.js do
-        render js: js_alert(t('messages.cannot_order_without_list_id')) and return if params[:list_id].blank?
-        @list = List.find(params[:list_id])
         render js: js_alert(t('messages.cannot_order_on_non_active_list')) and return unless @list.active?
         @list.place_order current_user, params[:products]
-        render js:  js_notice( t('messages.order_is_placed') )
+        render js:  js_notice( t('messages.order_is_placed'), location: user_active_list_path )
       end
     end
   end