Cakephp 2.3.9 custom message in model validation not working - cakephp

Question

I am doing model validation in my admin panel login so there is only two fields username and password. Validation is working but custom message which I have written in my model is not shown.
Model
public $validate = array(
'username' => array(
'required' => array(
'rule' => array('notEmpty'),
'message' => 'Please Enter Your Username'
)
),
'password' => array(
'required' => array(
'rule' => array ('notEmpty'),
'message' => 'Please Enter Your Password'
)
)
);
Controller
function login(){
$this->layout = 'admin_login';
if ($this->request->is('post')) {
if ($this->Auth->login()) {
return $this->redirect($this->Auth->redirect());
}
$this->Session->setFlash(__('Invalid username or password, try again'));
}
}
View
echo $this->Form->create('Admin',array('autocomplete'=>"off"));
echo '<div style="width:294px;float:left;position:relative;">';
echo $this->Form->input('username' , array('label' => '', 'placeholder' =>'Enter your username','div' => false));
echo $this->Form->input('password' , array('label' => '', 'value' =>'', 'div' => false,'placeholder'=>'Enter Your Password'));
echo '</div>';
echo '<div style="padding-left:0px;">';
echo $this->Form->end(__('Login' ,true));
I have already tried a few things like which is mentioned in this link, but it's not working for me.
CakePHP : Validation message not displaying

Answer 1

That looks like a message from the browser and not CakePHP.
CakePHP now adds a required attribute which modern browsers can use to trigger an error.
You can do one of three things here:
One: Set up your form to leave validation to the server:
$this->Form->create(array('novalidate'=>true));
Two: Set a custom validation message in the browser: http://www.whatwg.org/specs/web-apps/current-work/multipage/association-of-controls-and-forms.html#dom-cva-setcustomvalidity
Three: tolerate it

Answer 2

You get that message because the "username" field is flagged as "required". Maybe you've not defined it in the Form->input() function, but the "required" flag has been automatically added from the Model (due to your validation rules). As timstermatic said, it's a browser validation message caused by the required attribute.
To solve this issue (and show the CakePHP validation message) you've to force for avoiding the addition of the "required" flag on your field:
$this->Form->input('username', array('required' => FALSE));
This will override the Model automatic additions. Happy coding ;)
*Edited => It's important to clarify that the inline override removes only the required flag on the field: you'll take advantage of the Model validation anyway (just because if an empty field is sent to the server, it will not pass the validation rule you entered.

Answer 3

keep this code it will bypass the html5 validation and add your custom validations
view
echo $this->form->create('Post',array('action'=>'add'));
echo $this->form->input('title');
echo $this->form->input('body');
echo $this->form->submit('Save Post',array('formnovalidate'=>true));
echo $this->form->end();//Creates ending form tag
Model
var $validate=array(
'title'=>array(
'title_must_not_be_empty'=>array('rule'=>'notEmpty','message'=>'Please enter a title),
'title_must_be_unique'=>array('rule'=>'isUnique','message'=>'Title name already exists')
),
'body'=>array(
'body_must_not_be_empty'=>array(
'rule'=>'notEmpty',
'message'=>'Please enter body'
)
)
);
This will work just the way you want