sandbox : can define dynamic methods on Class_Entity

library/Class/Entity.php

@@ -21,9 +21,14 @@
 
 
 class Class_Entity {
-  protected $_attribs = [];
+  protected
+    $_attribs = [],
+    $_methods = [];
 
   public function __call($name, $params) {
+    if (array_key_exists($name, $this->_methods))
+      return call_user_func_array($this->_methods[$name], $params);
+
     if (!preg_match('/(get|set)(\w+)/', $name, $matches))
       throw new RuntimeException('Call to unknown method ' . $name);
 
@@ -62,4 +67,10 @@ class Class_Entity {
   public function toArray() {
     return $this->_attribs;
   }
+
+
+  public function whenCalledDo($name, $closure) {
+    $this->_methods[$name] = $closure;
+    return $this;
+  }
 }