Invalid method calls to ORM cause recursion

idiorm.php

@@ -1897,7 +1897,11 @@ public function __call($name, $arguments)
         {
             $method = strtolower(preg_replace('/([a-z])([A-Z])/', '$1_$2', $name));
 
-            return call_user_func_array(array($this, $method), $arguments);
+            if (method_exists($this, $method)) {
+                return call_user_func_array(array($this, $method), $arguments);
+            } else {
+                throw new IdiormMethodMissingException("Method $name() does not exist in class " . get_class($this));
+            }
         }
 
         /**
@@ -2147,7 +2151,11 @@ public function unserialize($serialized) {
          */
         public function __call($method, $params = array()) {
             foreach($this->_results as $model) {
-                call_user_func_array(array($model, $method), $params);
+                if (method_exists($model, $method)) {
+                    call_user_func_array(array($model, $method), $params);
+                } else {
+                    throw new IdiormMethodMissingException("Method $method() does not exist in class " . get_class($this));
+                }
             }
             return $this;
         }
@@ -2157,3 +2165,5 @@ public function __call($method, $params = array()) {
      * A placeholder for exceptions eminating from the IdiormString class
      */
     class IdiormStringException extends Exception {}
+
+    class IdiormMethodMissingException extends Exception {}

test/ORMTest.php

@@ -84,4 +84,19 @@ public function testGetLastPdoStatement() {
         $this->assertInstanceOf('MockPDOStatement', $statement);
     }
 
+    /**
+     * @expectedException IdiormMethodMissingException
+     */
+    public function testInvalidORMFunctionCallShouldCreateException() {
+        $orm = ORM::for_table('test');
+        $orm->invalidFunctionCall();
+    }
+
+    /**
+     * @expectedException IdiormMethodMissingException
+     */
+    public function testInvalidResultsSetFunctionCallShouldCreateException() {
+        $resultSet = ORM::for_table('test')->find_result_set();
+        $resultSet->invalidFunctionCall();
+    }
 }