neuigkeiten rechte

app/models/ability.rb

@@ -67,7 +67,10 @@ class Ability
    if user.has_role?("newsadmin") || user.has_role?("fetadmin") 
       can :addmoderator, Rubrik
    end    
-   can [:show, :index], [Rubrik,Neuigkeit]
+    can [:show,:index], Rubrik, :public=>true
+  
+    can :show, Neuigkeit, :rubrik=>{:public=>true}
+   
    if user.has_role?("newsadmin") || user.has_role?( "fetadmin") || user.has_role?( "fetuser") 
 	  can :manage, Rubrik
 	  can :manage, Neuigkeit

app/models/neuigkeit.rb

@@ -50,7 +50,13 @@ self.title
 end
   def text_first_words
     md = /<p>(?<text>[\w\s,\.!\?]*)/.match self.text
-    md[:text].split(" ")[0..100].join(" ")+ " ..." unless md[:text].split(" ").empty?
+    words=md[:text].split(" ") unless md.nil?
+    if words.nil? || words.empty?
+      "...."
+    else
+      words[0..100].join(" ")+ " ..." unless  words.nil?
+      
+    end
   end
 def has_calentries?
 !self.calentries.nil? && !self.calentries.empty?