Beta UserDetails done. String fields work

@@ -4,6 +4,7 @@ use Tz, Tz\Common, Tz\WordPress\Tools;
 
 const SETTING_NS = 'tz-user-details';
 const CAPABILITY = 'edit_user_details';
+const HTML_NS    = 'tzud-';
 
     call_user_func(function() {
         Tz\import('Tz', 'trunk');
@@ -25,17 +26,9 @@ function register_field($id, $display = null) { //, Common\Callback $fn = null)
     Vars::$fields[$id] = Array(
         'id'       => $id
       , 'label'    => $display
-//      , 'callback' => $fn
     );
 }
 
-/**
- * @returns Array
- */
-function get_registered_fields() {
-//    return assosative array('id' => 'val');
-}
-
 function get_user_id() {
     if (isset($_GET['user_id'])) {
         return $_GET['user_id'];
@@ -58,6 +51,16 @@ class Actions {
     public static function show_user_profile() {
         static::edit_user_profile();
     }
+
+    public static function profile_update() {
+        $uid = get_user_id();
+
+        foreach ($_POST as $key => $val) {
+            if (substr($key, 0, strlen(HTML_NS)) == HTML_NS) {
+                update_user_meta($uid, substr($key, strlen(HTML_NS)), $val);
+            }
+        }
+    }
 }
 
 class Vars {

@@ -8,7 +8,7 @@ namespace Tz\WordPress\Tools\UserDetails;
 <?php foreach (Vars::$fields as $id => $info): ?>
     <tr>
         <th><label for="<?php echo $id; ?>"><?php echo $info['label']; ?></label></th>
-        <td><input type="text" class="regular-text" name="<?php echo $id; ?>" id="<?php echo $id; ?>" value="<?php echo esc_attr(get_user_meta(get_user_id(), $id, true )); ?>" /></td>
+        <td><input type="text" class="regular-text" name="<?php echo HTML_NS . $id; ?>" id="<?php echo $id; ?>" value="<?php echo esc_attr(get_user_meta(get_user_id(), $id, true )); ?>" /></td>
     </tr>
 <?php endforeach; ?>
 </tbody></table>
\ No newline at end of file