Entity to array conversion improves to support has many associations.

models/entity.php

@@ -94,7 +94,26 @@ public function __toString() {
 	}
 
 	public function toArray() {
-		return Set::reverse($this);
+		$data = Set::reverse($this);
+
+		foreach (array_keys($data[$this->_name_]) as $name) {
+			// has many association
+			if (is_array($data[$this->_name_][$name]) and Set::numeric(array_keys($data[$this->_name_][$name]))) {
+				$list = $data[$this->_name_][$name];
+				unset($data[$this->_name_][$name]);
+
+				$name = Inflector::classify($name);
+				$data[$name] = array();
+				foreach ($list as $sub) {
+					if (is_array($sub)) {
+						$sub = current($sub);
+					}
+					$data[$name][] = $sub;
+				}
+			}
+		}
+
+		return $data;
 	}
 
 	private function magicFetch($key, &$value) {

models/entity_model.php

@@ -172,7 +172,7 @@ public function assignAttribute(Entity $entity, $alias, $value) {
 		$entity->{$name} = $value;
 	}
 
-	protected function getAssociatedModel($alias) {
+	public function getAssociatedModel($alias) {
 		if ($this->schema($alias) or !preg_match('/^[A-Z]/', $alias)) {
 			return null;
 		}

tests/cases/models/entity_model.test.php

@@ -501,24 +501,23 @@ public function testEntityToArray() {
 				'name' => 'Basuke', 
 				'programmer' => 'Programmer', 
 			),
-			'Post' => array(
+			'Comment' => array(
 				array(
 					'id' => '1', 
 					'author_id' => '123', 
-					'title' => 'Hello', 
+					'comment' => 'Hello', 
 				), 
 				array(
 					'id' => '2', 
 					'author_id' => '123', 
-					'title' => 'World', 
+					'comment' => 'World', 
 				), 
 			),
 		);
 
 		$author = $this->Author->entity($data);
 		$reversed = $author->toArray();
-//		$this->assertEqual($reversed, $data);
-
+		$this->assertEqual($reversed, $data);
 	}
 
 	public function testEntityGetModel() {