diff --git a/application/config/config.php b/application/config/config.php
index 68b85b62f..96b966b37 100755
--- a/application/config/config.php
+++ b/application/config/config.php
@@ -207,7 +207,7 @@ $config['directory_trigger'] = 'd';
 | your log files will fill up very fast.
 |
 */
-$config['log_threshold'] = 0;
+$config['log_threshold'] = 4;
 
 /*
 |--------------------------------------------------------------------------
diff --git a/application/controllers/api/v1/person/Kontakt.php b/application/controllers/api/v1/person/Kontakt.php
index 759f69120..5a59507dc 100644
--- a/application/controllers/api/v1/person/Kontakt.php
+++ b/application/controllers/api/v1/person/Kontakt.php
@@ -41,13 +41,13 @@ class Kontakt extends APIv1_Controller
 		}
 		else
 		{
-			$this->response();
+                    $this->response();
 		}
     }
     
     public function postKontakt()
     {
-		$post = $this->post();
+                $post = $this->_parseData($this->post());
 		
 		if(is_array($post))
 		{
@@ -67,4 +67,19 @@ class Kontakt extends APIv1_Controller
 			$this->response();
 		}
     }
+    
+    private function _parseData($person)
+    {
+        if(is_array($person))
+        {
+            foreach($person as $key=>$value)
+            {
+                if($value === "")
+                {
+                    $person[$key] = null;
+                }
+            }
+            return $person;
+        }
+    }
 }
\ No newline at end of file
diff --git a/application/controllers/api/v1/person/Person.php b/application/controllers/api/v1/person/Person.php
index c3ea2e7ab..e44410847 100644
--- a/application/controllers/api/v1/person/Person.php
+++ b/application/controllers/api/v1/person/Person.php
@@ -60,8 +60,7 @@ class Person extends APIv1_Controller
 		}
 		else
 		{
-                        $fields = $this->PersonModel->getFields();
-			$this->response($fields, REST_Controller::HTTP_OK);
+			$this->response();
 		}
 	}
 
@@ -70,15 +69,17 @@ class Person extends APIv1_Controller
 	 */
 	public function postPerson()
 	{
+                $person = $this->_parseData($this->post());
+            
 		if($this->_validate($this->post()))
 		{
-			if(isset($this->post()['person_id']))
+			if(isset($person['person_id']) && !(is_null($person["person_id"])) && ($person["person_id"] != ""))
 			{
-				$result = $this->PersonModel->update($this->post()['person_id'], $this->post());
+				$result = $this->PersonModel->update($person['person_id'], $person);
 			}
 			else
 			{
-				$result = $this->PersonModel->insert($this->post());
+				$result = $this->PersonModel->insert($person);
 			}
 			
 			$this->response($result, REST_Controller::HTTP_OK);
@@ -108,6 +109,21 @@ class Person extends APIv1_Controller
 			$this->response();
 		}
 	}
+        
+        private function _parseData($person)
+        {
+            if(is_array($person))
+            {
+                foreach($person as $key=>$value)
+                {
+                    if($value === "")
+                    {
+                        $person[$key] = null;
+                    }
+                }
+                return $person;
+            }
+        }
 
 	private function _validate($person = NULL)
 	{
@@ -115,7 +131,10 @@ class Person extends APIv1_Controller
 		{
 			return false;
 		}
-		
+                
+                //TODO
+                return true;
+                
 		$person['nachname'] = trim($person['nachname']);
 		$person['vorname'] = trim($person['vorname']);
 		$person['vornamen'] = trim($person['vornamen']);
diff --git a/application/models/person/Person_model.php b/application/models/person/Person_model.php
index 613a3cb76..171f3a47e 100644
--- a/application/models/person/Person_model.php
+++ b/application/models/person/Person_model.php
@@ -11,46 +11,6 @@ class Person_model extends DB_Model
 		$this->dbTable = 'public.tbl_person';
 		$this->pk = 'person_id';
 	}
-        
-         public function getFields()
-        {
-            $fields =  array(
-                   //Tabellenspalten
-                "person_id" => NULL,
-                "sprache" => NULL,
-                "anrede" => NULL,
-                "titelpost" => NULL,
-                "titelpre" => NULL,
-                "nachname" => NULL,
-                "vorname" => NULL,
-                "vornamen" => NULL,
-                "gebdatum" => NULL,
-                "gebort" => NULL,
-                "gebzeit" => NULL,
-                "foto" => NULL,
-                "anmerkungen" => NULL,
-                "homepage" => NULL,
-                "svnr" => NULL,
-                "ersatzkennzeichen" => NULL,
-                "familienstand" => NULL,
-                "anzahlkinder" => NULL,
-                "aktiv"=>TRUE,
-                "insertamum" => NULL,
-                "insertvon" => NULL,
-                "updateamum" => NULL,
-                "updatevon" => NULL,
-                "geschlecht" => "u",
-                "staatsbuergerschaft" => NULL,
-                "geburtsnation"	=> NULL,
-                "ext_id" => NULL,
-                "kurzbeschreibung"> NULL,
-                "zugangscode" => NULL,
-                "foto_sperre" => FALSE,
-                "matr_nr"=> NULL
-            );
-            
-            return $this->_success($fields);
-        }
 
 	/**
 	 *