diff --git a/lib/Database/AbstractDatabase.php b/lib/Database/AbstractDatabase.php
index 3d7b6b1..284c9f4 100644
--- a/lib/Database/AbstractDatabase.php
+++ b/lib/Database/AbstractDatabase.php
@@ -2,6 +2,8 @@
 
 namespace OwntracksRecorder\Database;
 
+use \OwntracksRecorder\RecordType\AbstractRecordType;
+
 class AbstractDatabase
 {
     protected $db;
@@ -34,6 +36,26 @@ class AbstractDatabase
         return (count($result) > 0);
     }
 
+    public function addRecord(AbstractRecordType $obj)
+    {
+        $tablename = $obj->getTableName();
+        $fieldnames = array();
+        $placeholders = array();
+        $values = array();
+        foreach ($obj as $key => $value) {
+            if (is_null($value)) {
+                continue;
+            }
+            $fieldnames[] = $key;
+            $placeholders[] = '?';
+            $values[] = $value;
+        }
+
+        $sql = 'INSERT INTO ' . $this->prefix . $tablename . ' (' . implode(', ', $fieldnames) . ') VALUES (' . implode(', ', $placeholders) . ');';
+        $result = $this->execute($sql, $values);
+        return $result;
+    }
+
     public function addLocation(
         int $accuracy = null,
         int $altitude = null,
diff --git a/lib/RecordType/AbstractRecordType.php b/lib/RecordType/AbstractRecordType.php
new file mode 100755
index 0000000..5ccc01b
--- /dev/null
+++ b/lib/RecordType/AbstractRecordType.php
@@ -0,0 +1,73 @@
+<?php
+
+namespace OwntracksRecorder\RecordType;
+
+class AbstractRecordType implements \Iterator
+{
+    protected $type;
+    protected $table;
+    protected $fields = array();
+    protected $data = array();
+
+    public function __construct()
+    {
+        // init empty record
+        foreach ($this->fields as $key => $extkey) {
+            $this->data[$key] = null;
+        }
+    }
+
+    public function __isset($key)
+    {
+        return !is_null($this->data[$key]);
+    }
+
+    public function __get($key)
+    {
+        return $this->data[$key];
+    }
+
+    public function rewind()
+    {
+        reset($this->data);
+    }
+
+    public function current()
+    {
+        return current($this->data);
+    }
+
+    public function key()
+    {
+        return key($this->data);
+    }
+
+    public function next()
+    {
+        return next($this->data);
+    }
+
+    public function valid()
+    {
+        return $this->current() !== false;
+    }
+
+    public function getTableName()
+    {
+        return $this->table;
+    }
+
+    public function fillFromArray($arr)
+    {
+        foreach ($this->fields as $key => $extinfo) {
+            if (is_null($extinfo)) {
+                continue;
+            }
+            if (array_key_exists($extinfo[0], $arr)) {
+                $val = $arr[$extinfo[0]];
+                settype($val, $extinfo[1]);   // convert to needed type
+                $this->data[$key] = $val;
+            }
+        }
+    }
+}
diff --git a/lib/RecordType/Location.php b/lib/RecordType/Location.php
new file mode 100755
index 0000000..6bacd22
--- /dev/null
+++ b/lib/RecordType/Location.php
@@ -0,0 +1,39 @@
+<?php
+
+namespace OwntracksRecorder\RecordType;
+
+use \OwntracksRecorder\RecordType\AbstractRecordType;
+
+class Location extends AbstractRecordType
+{
+    protected $table = 'locations';
+
+    // https://owntracks.org/booklet/tech/json/
+    protected $type = 'location';
+
+    // Mapping of database fields => JSON field, type
+    protected $fields = array(
+        'lid'          => null,
+        'dt'           => null,
+        'accuracy'     => array('acc', 'int'),
+        'altitude'     => array('alt', 'int'),
+        'battery_level' => array('batt', 'int'),
+        'heading'      => array('cog', 'int'),
+        'description'  => array('desc', 'string'),
+        'event'        => array('event', 'string'),
+        'latitude'     => array('lat', 'float'),
+        'longitude'    => array('lon', 'float'),
+        'radius'       => array('rad', 'int'),
+        'trig'         => array('t', 'string'),
+        'tracker_id'   => array('tid', 'string'),
+        'epoch'        => array('tst', 'int'),
+        'vertical_accuracy' => array('vac', 'int'),
+        'velocity'     => array('vel', 'int'),
+        'pressure'     => array('p', 'float'),
+        'connection'   => array('conn', 'string'),
+        'topic'        => array('topic', 'string'),
+        'place_id'     => null,
+        'osm_id'       => null,
+        'display_name' => null,
+    );
+}
diff --git a/record.php b/record.php
index 2c1c048..8f7eae0 100644
--- a/record.php
+++ b/record.php
@@ -7,6 +7,7 @@ require_once 'vendor/autoload.php';
 
 use \OwntracksRecorder\Database\MySql;
 use \OwntracksRecorder\Database\SQLite;
+use \OwntracksRecorder\RecordType\Location;
 
 function _log($msg)
 {
@@ -30,65 +31,13 @@ header('Content-type: application/json');
 
 $response_msg = null;
 if ($data['_type'] == 'location' || in_array('debug', $_REQUEST)) {
-    $accuracy = null;
-    $altitude = null;
-    $battery_level = null;
-    $heading = null;
-    $description = null;
-    $event = null;
-    $latitude = null;
-    $longitude = null;
-    $radius = null;
-    $trig = null;
-    $tracker_id = null;
-    $epoch = null;
-    $vertical_accuracy = null;
-    $velocity = null;
-    $pressure = null;
-    $connection = null;
-    $topic = null;
 
-    //http://owntracks.org/booklet/tech/json/
-    if (array_key_exists('acc', $data)) $accuracy = intval($data['acc']);
-    if (array_key_exists('alt', $data)) $altitude = intval($data['alt']);
-    if (array_key_exists('batt', $data)) $battery_level = intval($data['batt']);
-    if (array_key_exists('cog', $data)) $heading = intval($data['cog']);
-    if (array_key_exists('desc', $data)) $description = strval($data['desc']);
-    if (array_key_exists('event', $data)) $event = strval($data['event']);
-    if (array_key_exists('lat', $data)) $latitude = floatval($data['lat']);
-    if (array_key_exists('lon', $data)) $longitude = floatval($data['lon']);
-    if (array_key_exists('rad', $data)) $radius = intval($data['rad']);
-    if (array_key_exists('t', $data)) $trig = strval($data['t']);
-    if (array_key_exists('tid', $data)) $tracker_id = strval($data['tid']);
-    if (array_key_exists('tst', $data)) $epoch = intval($data['tst']);
-    if (array_key_exists('vac', $data)) $vertical_accuracy = intval($data['vac']);
-    if (array_key_exists('vel', $data)) $velocity = intval($data['vel']);
-    if (array_key_exists('p', $data)) $pressure = floatval($data['p']);
-    if (array_key_exists('conn', $data)) $connection = strval($data['conn']);
-    if (array_key_exists('topic', $data)) $topic = strval($data['topic']);
+    $loc = new Location();
+    $loc->fillFromArray($data);
 
-    //record only if same data found at same epoch / tracker_id
-    if (!$sql->isEpochExisting($tracker_id, $epoch)) {
-
-        $result = $sql->addLocation(
-            $accuracy,
-            $altitude,
-            $battery_level,
-            $heading,
-            $description,
-            $event,
-            $latitude,
-            $longitude,
-            $radius,
-            $trig,
-            $tracker_id,
-            $epoch,
-            $vertical_accuracy,
-            $velocity,
-            $pressure,
-            $connection,
-            $topic
-        );
+    // record only if same data found at same epoch / tracker_id
+    if (!$sql->isEpochExisting($loc->tracker_id, $loc->epoch)) {
+        $result = $sql->addRecord($loc);
 
         if ($result) {
             http_response_code(200);
@@ -96,10 +45,10 @@ if ($data['_type'] == 'location' || in_array('debug', $_REQUEST)) {
         } else {
             http_response_code(500);
             $response_msg = 'Can\'t write to database';
-            _log('Insert KO - Can\'t write to database.');
+            _log('ERROR during Insert: Can\'t write to database.');
         }
     } else {
-        _log('Duplicate location found for epoc ' . $epoch . ' / tid ' . $tracker_id . ' - no insert');
+        _log('Duplicate location found for epoc ' . $loc->epoch . ' / tid ' . $loc->tracker_id . ' - no insert');
         $response_msg = 'Duplicate location found for epoch. Ignoring.';
     }
 } else {