Added modelform and model extensions

extensions/select_a_field.php

@@ -0,0 +1,40 @@
+<?php
+
+/**
+*
+* @author  Antonio de la Rosa <webmaster@web-t-sys.com>
+* @file
+* @package Core/ModelExtraMethods
+*
+*
+*/
+
+/**
+* Extension method class used for select a field only of the model in the db
+*
+* This method is useful if you only want load a field of a model.
+*
+* @param Webmodel $class The model used for search in
+* @param string $where A where sql statement.
+* @param string $field The field where search.
+*/
+
+function select_a_field_method_class($class, $where, $field)
+{
+	
+	$arr_field=array();
+	
+	$query=$class->select($where, array($field), $raw_query=1);
+	
+	while(list($field_choose)=webtsys_fetch_row($query))
+	{
+	
+		$arr_field[]=$field_choose;
+	
+	}
+	
+	return $arr_field;
+
+}
+
+?>