fix #4

src/studienplaner/view/DetailsTable.java

@@ -358,7 +358,7 @@ public class DetailsTable extends JScrollPane
                     if(NameValue.getText().isEmpty())
                         JOptionPane.showMessageDialog(controller.gui,"Ein Kompetenzbereichsname muss muss mind. ein Zeichen lang sein.",
                                                       "Ungültiger Name",JOptionPane.ERROR_MESSAGE);
-                    else if(((ObserverScopesList)controller.gui.getComponent("ScopesList")).containsScope(NameValue.getText()))
+                    else if(((ObserverScopesList)controller.gui.getComponent("ScopesList")).containsScopeExcept(NameValue.getText(), scope))
                         JOptionPane.showMessageDialog(controller.gui,"Mehrere gleichnamige Kompetenzbereiche sind nicht erlaubt.",
                                                       "Gleiche Kompetenzbereichsnamen",JOptionPane.ERROR_MESSAGE);
                     else
@@ -475,7 +475,7 @@ public class DetailsTable extends JScrollPane
                     if(NameValue.getText().isEmpty())
                         JOptionPane.showMessageDialog(controller.gui,"Ein Modulname muss muss mind. ein Zeichen lang sein.",
                                                                      "Ungültiger Name",JOptionPane.ERROR_MESSAGE);
-                    else if(((ObserverModulesList)controller.gui.getComponent("ModulesList")).containsModule(NameValue.getText()))
+                    else if(((ObserverModulesList)controller.gui.getComponent("ModulesList")).containsModuleExcept(NameValue.getText(), module))
                         JOptionPane.showMessageDialog(controller.gui,"Mehrere gleichnamige Module sind nicht erlaubt.",
                                                                      "Gleiche Modulnamen",JOptionPane.ERROR_MESSAGE);
                     else

src/studienplaner/view/ObserverModulesList.java

@@ -102,6 +102,19 @@ public class ObserverModulesList extends JList implements Observer
         return false;
     }
     
+    /** Whether list contains module named <i>name</i> that is not the same object as <i>except</i>
+     * 
+     * @param name Name of module
+     * @param except Module object that should not be looked for
+     */
+    public boolean containsModuleExcept(String name, Module except)
+    {
+        for(Module m : currentModules)
+            if(m != except && m.getName().equals(name))
+                return true;
+        return false;
+    }
+    
     public int length()
     {
         return currentModules.length;

src/studienplaner/view/ObserverScopesList.java

@@ -103,6 +103,19 @@ public class ObserverScopesList extends JList implements Observer
         return false;
     }
     
+    /** Whether list contains scope named <i>name</i> that is not the same object as <i>except</i>
+     * 
+     * @param name Name of scope
+     * @param except Scope object that should not be looked for
+     */
+    public boolean containsScopeExcept(String name, Scope except)
+    {
+        for(Scope s : currentScopes)
+            if(s != except && s.getName().equals(name))
+                return true;
+        return false;
+    }
+    
     public int length()
     {
         return currentScopes.length;