exists() public method

A flag indicating whether or not this record exists.
public exists ( ) : boolean
return boolean `True` if the record was `read` from the data-source, or has been `create`d and `save`d. Otherwise `false`.
Entity Class Documentation
Beispiel #1
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 public function testPropertyAccess()
 {
     $entity = new Entity(array('model' => 'lithium\\tests\\mocks\\data\\MockPost', 'exists' => false));
     $this->assertEqual('lithium\\tests\\mocks\\data\\MockPost', $entity->model());
     $this->assertFalse($entity->exists());
     $entity = new Entity(array('exists' => true));
     $this->assertTrue($entity->exists());
     $expected = array('exists' => true, 'data' => array(), 'update' => array(), 'increment' => array());
     $this->assertEqual($expected, $entity->export());
 }
Beispiel #2
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 /**
  * Creates an HTML form, and optionally binds it to a data object which contains information on
  * how to render form fields, any data to pre-populate the form with, and any validation errors.
  * Typically, a data object will be a `Record` object returned from a `Model`, but you can
  * define your own custom objects as well. For more information on custom data objects, see
  * `lithium\template\helper\Form::$_binding`.
  *
  * @see lithium\template\helper\Form::$_binding
  * @see lithium\data\Entity
  * @param object $binding
  * @param array $options
  * @return string Returns a `<form />` open tag with the `action` attribute defined by either
  *         the `'action'` or `'url'` options (defaulting to the current page if none is
  *         specified), the HTTP method is defined by the `'method'` option, and any HTML
  *         attributes passed in `$options`.
  */
 public function create(\lithium\data\Entity $binding = null, array $options = array())
 {
     $defaults = array('url' => $this->_context->request()->params, 'type' => null, 'action' => null, 'method' => $binding ? $binding->exists() ? 'put' : 'post' : 'post');
     list(, $options, $template) = $this->_defaults(__FUNCTION__, null, $options);
     list($scope, $options) = $this->_options($defaults, $options);
     $_binding =& $this->_binding;
     $method = __METHOD__;
     $params = compact('scope', 'options', 'binding');
     $filter = function ($self, $params, $chain) use($method, $template, $defaults, &$_binding) {
         $scope = $params['scope'];
         $options = $params['options'];
         $_binding = $params['binding'];
         $append = null;
         if ($scope['type'] == 'file') {
             if (strtolower($scope['method']) == 'get') {
                 $scope['method'] = 'post';
             }
             $options['enctype'] = 'multipart/form-data';
         }
         if (!in_array(strtolower($scope['method']), array('get', 'post'))) {
             $append = $self->hidden('_method', array('value' => strtoupper($scope['method'])));
             $scope['method'] = 'post';
         }
         $url = $scope['action'] ? array('action' => $scope['action']) : $scope['url'];
         $options['method'] = strtolower($scope['method']);
         return $self->invokeMethod('_render', array($method, $template, compact('url', 'options', 'append')));
     };
     return $this->_filter($method, $params, $filter);
 }