Inserting with empty string in cakePHP - cakephp-2.0

Question

i am new in cakePHP framework with version 2.0 my problem is when i save the data or insert the new record the field is empty or no data to be save how can i fix this. .
My Model
class Post extends AppModel{
public $name = 'posts';
}
My Controller
public function add(){
if($this->request->is('post')){
$this->Post->create();
if($this->Post->save($this->request->data)){
$this->Session->setFlash('The posts was saved');
$this->redirect('index');
}
}
}
My View
echo $this->Form->create('Create Posts');
echo $this->Form->input('title');
echo $this->Form->input('body');
echo $this->Form->end('Save Posts');

Answer 1

You need to put the validation rules in the Post model, Then you can check validate data or not in the controller action before save into model. See the following Model and controller
In Model
class Post extends AppModel{
public $name = 'posts';
public $validate = array(
'title' => array(
'alphaNumeric' => array(
'rule' => 'alphaNumeric',
'required' => true,
'message' => 'This is can'\t blank'
),
),
'body' => array(
'alphaNumeric' => array(
'rule' => 'alphaNumeric',
'required' => true,
'message' => 'This is can'\t blank'
),
),
);
}
In Controller
public function add(){
if($this->request->is('post')){
$this->Post->create();
$this->Post->set($this->request->data);
if ($this->Post->validates()) {
// it validated logic
if($this->Post->save($this->request->data)){
$this->Session->setFlash('The posts was saved');
$this->redirect('index');
}
} else {
// didn't validate logic
$errors = $this->Post->validationErrors;
}
}
}