Update preview with file upload

app/controllers/admin/announcements_controller.rb

@@ -62,34 +62,84 @@ class Admin::AnnouncementsController < OrbitAdminController
 
   def delete
     if params[:ids]
-      bulletins = Bulletin.any_in(:uid => params[:ids]).destroy_all
+      Bulletin.any_in(:uid => params[:ids]).destroy_all
     end
     redirect_to "/admin/announcements"
   end
 
   def preview
-    bulletin_data = bulletin_params
-
-    unless bulletin_data['bulletin_files_attributes'].nil?
-      bulletin_data['bulletin_files_attributes'].each do |key, value|
-        bulletin_data['bulletin_files_attributes'][key].delete('id')
-      end      
-    end
-
-    unless bulletin_data['bulletin_links_attributes'].nil?
-      bulletin_data['bulletin_links_attributes'].each do |key, value|
-        bulletin_data['bulletin_links_attributes'][key].delete('id')
+    if params['preview_type'].eql?('edit')
+      bulletin_data = bulletin_params
+      org_bulletin = Bulletin.find(params['bulletin_id'])
+      bulletin = org_bulletin.clone
+      bulletin.generate_uid
+      bulletin.bulletin_files = []
+      bulletin.bulletin_links = []
+      if bulletin_data['image'].blank?
+        bulletin.image = org_bulletin.image
       end
+
+      if !bulletin_data['bulletin_files_attributes'].blank?
+        bulletin_data['bulletin_files_attributes'].each do |key, bulletin_file|
+          next if !bulletin_file['_destroy'].blank?
+          file = nil
+          if bulletin_file['id'].blank?
+            file = BulletinFile.new(bulletin_file)
+            file.bulletin_id = bulletin.id
+            file.save
+          else
+            file = BulletinFile.find(bulletin_file['id']).clone
+            file.bulletin_id = bulletin.id
+            bulletin_file.delete('id')
+            bulletin_file.delete('_destroy')
+            file.update_attributes(bulletin_file)
+          end
+
+          file.save
+          bulletin.bulletin_files << file
+        end
+      end
+
+      if !bulletin_data['bulletin_links_attributes'].blank?
+        bulletin_data['bulletin_links_attributes'].each do |key, bulletin_link|
+          next if !bulletin_link['_destroy'].blank?
+
+          if bulletin_link['id'].blank?
+            link = BulletinLink.new(bulletin_link)
+            link.bulletin_id = bulletin.id
+          else
+            link = BulletinLink.find(bulletin_link['id']).clone
+            link.bulletin_id = bulletin.id
+            bulletin_link.delete('id')
+            bulletin_link.delete('_destroy')
+            link.update_attributes(bulletin_link)
+          end
+
+          link.save
+          bulletin.bulletin_links << link
+        end
+      end
+
+      bulletin_data.delete('bulletin_files_attributes')
+      bulletin_data.delete('bulletin_links_attributes')
+      bulletin.update_attributes(bulletin_data)
+    else
+      bulletin = Bulletin.new(bulletin_params)
     end
     
-    bulletin = Bulletin.new(bulletin_data)
     bulletin.is_preview = true
-    bulletin.create_user_id = current_user.id
-    bulletin.update_user_id = current_user.id
     bulletin.save
     render :text=>page_for_bulletin(bulletin)
   end
 
+  def destroy_preview
+    bulletin = Bulletin.find_by(:uid=>params['uid'])
+    if bulletin.is_preview
+      bulletin.destroy
+    end
+    render :json=>{'destroy'=>bulletin.id.to_s}
+  end
+
   def build_email(bulletin)
     if bulletin.email_sent and !bulletin.email_addresses.blank?
       if bulletin.email.nil?

app/models/bulletin.rb

@@ -4,6 +4,7 @@ class Bulletin
 
   include OrbitModel::Status
   include OrbitModel::Impression
+  # encoding: utf-8
   include OrbitTag::Taggable
   include OrbitCategory::Categorizable
   include Slug

app/models/bulletin_file.rb

@@ -1,3 +1,4 @@
+# encoding: utf-8
 class BulletinFile
 
   include Mongoid::Document

app/models/bulletin_link.rb

@@ -1,3 +1,4 @@
+# encoding: utf-8
 require 'uri'
 
 class BulletinLink

app/views/admin/announcements/_form.html.erb

@@ -298,7 +298,7 @@
       <h3><%= t(:preview) %></h3>
     </div>
     <div class="modal-body">
-      <iframe src=""></iframe>
+      <iframe id="preview-iframe" src=""></iframe>
     </div>
     <div class="modal-footer">
       <a href="#" class="btn" data-dismiss="modal"><%= t(:close) %></a>
@@ -354,22 +354,33 @@
       $('#button_for_preview').click(function(){
         var method = $('.main-forms input[name="_method"]').val();
         $('.main-forms input[name="_method"]').val("post");
-
+        
         for ( instance in CKEDITOR.instances )
           CKEDITOR.instances[instance].updateElement();
-        
+
+        var formData = new FormData( $('.main-forms')[0] );
+        formData.append("preview_type", ( (method==undefined) ? "new" : "edit" ));
+        formData.append("bulletin_id", '<%= @bulletin.id.to_s %>');
+
         $.ajax({
           type: "post",
           url: '<%= admin_announcement_preview_path %>',
-          data : $('.main-forms').serialize()
+          data : formData,
+          processData: false,
+          contentType: false
         }).done(function(data){
           $('.modal-body iframe').attr('src',data);
           $('#show_preview .modal').modal();
           $('#show_preview .modal').height(function() {
             return $(window).height() * 0.7;
           });
+
+          var slug = data.split('/')[(data.split('/').length-1)];
+          $('#preview-iframe').on('load', function(){
+            $.get('/admin/announcement/destroy_preview/'+slug,function(data){
+            });
+          });
         });
-        
         $('.main-forms input[name="_method"]').val(method);
         return false;
       });

config/routes.rb

@@ -5,6 +5,7 @@ Rails.application.routes.draw do
   scope "(:locale)", locale: Regexp.new(locales.join("|")) do
    namespace :admin do
       post 'announcement/preview', to: 'announcements#preview'
+      get 'announcement/destroy_preview/:slug_title-:uid', to: 'announcements#destroy_preview'
       resources :announcements
    end