fix journal paper new errors

app/controllers/admin/journal_papers_controller.rb

@@ -45,8 +45,8 @@ class Admin::JournalPapersController < OrbitMemberController
         format.html { redirect_to admin_journal_papers_path }
         format.xml  { render :xml => @journal_paper, :status => :created, :location => @journal_paper }
       else
-        format.html { render action: "new" }
-        format.xml  { render :xml => @journal_paper.errors, :status => :unprocessable_entity }
+        format.html { render action: 'new' }
+        format.json { render json: @extension.errors, status: :unprocessable_entity }
       end
      end
   end
@@ -61,7 +61,7 @@ class Admin::JournalPapersController < OrbitMemberController
         format.xml  { head :ok }
       else
         format.html { render action: "edit" }
-        format.xml  { render :xml => @journal_paper.errors, :status => :unprocessable_entity }
+        format.json { render json: @extension.errors, status: :unprocessable_entity }
       end
     end
   end

app/models/journal_paper.rb

@@ -47,7 +47,7 @@ class JournalPaper
     title = []
 
     title << self.member_profile.name if self.member_profile_id.present?
-    title << (!self.journal_levels.blank? ? "#{self.journal_paper_authors.collect{|j| j.name}.join(', ')}" : nil)
+    title << (!self.journal_paper_authors.blank? ? "#{self.journal_paper_authors.collect{|j| j.name}.join(', ')}" : nil)
     if !self.publication_date.nil?
       pd = self.publication_date.strftime("%Y-%m-%d").split('-')
       title << pd[0]
@@ -64,7 +64,7 @@ class JournalPaper
   def authors
     authors = []
     authors << self.member_profile.name if self.member_profile_id.present?
-    authors << (!self.journal_levels.blank? ? "#{self.journal_paper_authors.collect{|j| j.name}.join(', ')}" : nil)
+    authors << (!self.journal_paper_authors.blank? ? "#{self.journal_paper_authors.collect{|j| j.name}.join(', ')}" : nil)
     authors.join(', ')
   end
 

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

@@ -13,7 +13,9 @@
   <%= javascript_include_tag "lib/datetimepicker/date.time.picker.js" %>
   <%= javascript_include_tag "lib/datetimepicker/datetimepicker" %>
 <% end %>
-
+<div class="form-group has-error">
+  <center><%= @journal_paper.errors.full_messages.first if @journal_paper.errors.any? %></center>
+</div>
 <!-- Input Area -->
 <div class="input-area">