public function testSerialize()
{
$record = $this->users('mike');
$options = array('include' => array('Comments' => array('only' => 'body')), 'only' => 'name');
$serializer = new Mad_Model_Serializer_Json($record, $options);
$expected = '{"name":"Mike Naberezny",' . '"Comments":[{"body":"Comment A"},{"body":"Comment B"}]}';
try {
$this->assertEquals($expected, $serializer->serialize());
} catch (Mad_Model_Exception $e) {
if (function_exists('json_encode')) {
throw $e;
} else {
$this->assertRegExp('/json_encode/', $e->getMessage());
}
}
}
/**
* Returns a JSON string representing the model. Some configuration is
* available through <code>$options</code>.
*
* Without any <code>$options</code>, the returned JSON string will include all
* the model's attributes. For example:
*
* $konata = User::find(1);
* $konata->toJson();
* # => {"id": 1, "name": "Konata Izumi", "age": 16,
* "created_at": "2006/08/01", "awesome": true}
*
* The <code>only</code> and <code>except</code> options can be used to limit
* the attributes included, and work similar to the <code>attributes</code>
* method. For example:
*
* $konata->toJson(array('only' => array('id', 'name')));
* # => {"id": 1, "name": "Konata Izumi"}
*
* $konata->toJson(array('except' => array('id', 'created_at', 'age')));
* # => {"name": "Konata Izumi", "awesome": true}
*
* To include any methods on the model, use <code>:methods</code>.
*
* $konata->toJson(array('methods' => 'permalink'));
* # => {"id": 1, "name": "Konata Izumi", "age": 16,
* "created_at": "2006/08/01", "awesome": true,
* "permalink": "1-konata-izumi"}
*
* To include associations, use <code>:include</code>.
*
* $konata->toJson(array('include' => 'Posts'));
* # => {"id": 1, "name": "Konata Izumi", "age": 16,
* "created_at": "2006/08/01", "awesome": true,
* "posts": [{"id": 1, "author_id": 1, "title": "Welcome to the weblog"},
* {"id": 2, author_id: 1, "title": "So I was thinking"}]}
*
* 2nd level and higher order associations work as well:
*
* $konata->toJson(array('include' => array('Posts' => array(
* 'include' => array('Comments' => array(
* 'only' => 'body')),
* 'only' => 'title'))));
* # => {"id": 1, "name": "Konata Izumi", "age": 16,
* "created_at": "2006/08/01", "awesome": true,
* "posts": [{"comments": [{"body": "1st post!"}, {"body": "Second!"}],
* "title": "Welcome to the weblog"},
* {"comments": [{"body": "Don't think too hard"}],
* "title": "So I was thinking"}]}
*
* @param array $options
* @return string
*/
public function toJson($options = array())
{
$serializer = new Mad_Model_Serializer_Json($this, $options);
$serialized = $serializer->serialize();
if (self::$includeRootInJson) {
$jsonName = $this->getJsonClassName();
return "{ {$jsonName}: {$serialized} }";
} else {
return $serialized;
}
}