From aafa33776811610f8c63f63ed6ee35e5dbd110e3 Mon Sep 17 00:00:00 2001
From: Andrey Kutejko <andy128k@gmail.com>
Date: Fri, 10 May 2013 13:10:27 +0300
Subject: [PATCH] explicit abstract Form class

---
 ipf/form.php | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/ipf/form.php b/ipf/form.php
index 3d4e93d..3df7f72 100644
--- a/ipf/form.php
+++ b/ipf/form.php
@@ -1,6 +1,6 @@
 <?php
 
-class IPF_Form implements Iterator
+abstract class IPF_Form implements Iterator
 {
     public $fields = array();
     public $field_groups = array();
@@ -30,10 +30,7 @@ class IPF_Form implements Iterator
         $this->f = new IPF_Form_FieldProxy($this);
     }
 
-    function initFields($extra=array())
-    {
-        throw new IPF_Exception('Definition of the fields not implemented.');
-    }
+    abstract protected function initFields($extra=array());
 
     function addPrefix($field_name)
     {
-- 
2.49.0