CakePHP validation not working - validation

Question

Iam new in cakephp ,I need to validate a form.
This is the code:
Controller:
<?php
class TasksController extends AppController {
var $name = 'Tasks';
var $helpers = array('Html','Form','Session');
public function index(){
}
function add_task()
{
if(!empty($this->data)) {
//print_r($this->data);
$this->Task->set($this->data);
if ($this->Task->validates()) {
// it validated logic
//echo "ttt";
} else {
// didn't validate logic
echo $errors = $this->Task->validationErrors;
}
}
}
}
?>
Model:
<?php
class Task extends AppModel
{
public var $name = 'Task';
var $useDbConfig = 'travanco_erp';
public var $useTable = 'tbl_tasks'; // This model uses a database table 'exmp'
public var $validate = array(
'task_title_mm' => array(
'rule' => 'notEmpty',
'required' => true,
'message' => 'The title field is required'
),
'task_description_mm' => array(
'rule' => 'notEmpty',
'required' => true,
'message' => 'The description field is required'
),
'task_from_mm' => array(
'rule' => 'notEmpty',
'required' => true,
'message' => 'The from date field is required'
),
'task_to_mm' => array(
'rule' => 'notEmpty',
'required' => true,
'message' => 'The to date field is required'
)
);
}
?>
This is the view:
<div class="employeeForm" style="width:64%; padding:10px 30%;">
<?php echo $this->Form->create('test', array('class'=>'form'));?>
<fieldset style="width:36em; padding:0px 0px;">
<div style="width:475px; font-family:Arial, Helvetica, sans-serif; font-size:16px; color:#333333; font-weight:bold; margin-left:20px; margin-top:10px;">Add Task</div>
<br/>
<?php
/*echo $this->Form->input('task_ids_mm', array( 'div'=>'frm_filed_new',
'error' => array( 'wrap' => 'div',
'class' => 'formerror'
),
'label' => 'Task ID',
));*/
echo $this->Form->input('task_title_mm', array( 'div'=>'frm_filed_new',
'error' => array( 'wrap' => 'div',
'class' => 'formerror'
),
'label' => 'Title',
));
echo $this->Form->input('task_description_mm', array( 'type' => 'textarea',
'cols'=>60,
'rows' => 5,
'div'=>'frm_filed_new',
'error' => array( 'wrap' => 'div',
'class' => 'formerror'
),
'label' => 'Description',
));
echo $this->Form->input('task_from_mm', array( 'div'=>'frm_filed_new','id'=>'task_from_mm','value'=>'',
'error' => array( 'wrap' => 'div',
'class' => 'formerror'
),
'label' => 'From',
));
echo $this->Form->input('task_to_mm', array( 'div'=>'frm_filed_new','id'=>'task_to_mm','value'=>'',
'error' => array( 'wrap' => 'div',
'class' => 'formerror'
),
'label' => 'To',
));
?>
<br/>
<?php echo $this->Form->button('Submit', array('type'=>'submit','escape'=>true)); ?>
</fieldset>
<?php echo $this->Form->end(); ?>
</div>
The validation not working.
What is the error in my code?
How can i solve this?
EDIT:
It is the mistake of misconfiguration of databse.php file.Now its corrected .And the print_r($errors) displays the errors.But that not displayed in the view page , i mean near the textboxes.
This is that error array:
Array ( [task_title_mm] => Array ( [0] => The title field is required ) [task_description_mm] => Array ( [0] => The description field is required ) [task_from_mm] => Array ( [0] => The from date field is required ) [task_to_mm] => Array ( [0] => The to date field is required ) )
How can i put it in near the text box?

Answer 1

CakePHP is designed to automatically validate model and display validation errors. Auto validation runs on model save. In your case:
$this->Task->save($this->request->data);
above will trigger validation. There is no need to run: $this->Task->validates() - If you do so, you also have to take care of displaying validation error by your own. So I think you simply should try:
<?php
class TasksController extends AppController {
var $name = 'Tasks';
var $helpers = array('Html','Form','Session');
function add_task()
{
if ($this->request->is('post')) {
// If the form data can be validated and saved...
if ($this->Task->save($this->request->data)) {
//saved and validated
}
}
}
}
?>

Answer 2

one thing i noticed in your code that you are writing in your model
public var $validate=array();
instead try
public $validate= array() or var $validate=array();
Validation should work after words.
Thanks :)

Answer 3

Try this:
if ($this->Task->validates()) {
// it validated logic
//echo "ttt";
} else {
$this->validateErrors($this->Task);
$this->render();
}