CakePHP "Agree TOS" Checkbox Validation - validation

Question

I am trying to have a Checkbox "Agree TOS".
If the Checkbox is not checked, I want to put out a Flash Message.
How do I do this?
My View:
<?php
echo $form->create('Item', array('url' => array_merge(array('action' => 'find'), $this->params['pass'])));
echo $form->input('Search', array('div' => false));
echo $form->submit(__('Search', true), array('div' => false));
echo $form->checkbox('tos', array('label' => false, 'value'=>1)).' Agree TOS';
echo $form->error('tos');
echo $form->end();
?>
My Model:
var $check = array(
'tos' => array(
'rule' => array('comparison', 'equal to', 1),
'required' => true,
'allowEmpty' => false,
'on' => 'index',
'message' => 'You have to agree TOS'
));

Answer 1

This seems working for me. Hope it will help.
In model:
'tos' => array(
'notEmpty' => array(
'rule' => array('comparison', '!=', 0),
'required' => true,
'message' => 'Please check this box if you want to proceed.'
)
In view:
<?php echo $this->Form->input('tos', array('type'=>'checkbox', 'label'=>__('I confirm I have read the privacy statement.', true), 'hiddenField' => false, 'value' => '0')); ?>

Answer 2

Model
'agreed' => array(
'notempty' => array(
'rule' => array('comparison', '!=', 0),//'checkAgree',
'message' => ''You have to agree TOS'',
'allowEmpty' => false,
'required' => true,
'last' => true, // Stop validation after this rule
'on' => 'signup', // Limit validation to 'create' or 'update' operations
),
),
View
<?php echo $this->Form->input('agreed',array('value'=>'0'),array('type'=>'checkbox', 'label'=>'Agree to TOS')); ?>

Answer 3

basically, you add the rule "notEmpty" for this field to the public $validate array of the model.
this way an error will get triggered on Model->validates() if the checkbox has not been checked.
maybe some overhead in your case, but if you happen to use it more often try a DRY (dont repeat yourself) approach. you can also use a behavior for this to use this clean and without tempering too much with the model/controller:
// view form
echo $this->Form->input('confirmation', array('type'=>'checkbox', 'label'=>__('Yes, I actually read it', true)));
and in the controller action
// if posted
$this->Model->Behaviors->attach(array('Tools.Confirmable'=>array('field'=>'confirmation', 'message'=>'My custom message')));
$this->Model->set($this->data);
if ($this->Model->validates()) {
// OK
} else {
// Error flash message here
}
1.x:
https://github.com/dereuromark/tools/blob/1.3/models/behaviors/confirmable.php
for 2.x:
https://github.com/dereuromark/cakephp-tools/blob/2.x/Model/Behavior/ConfirmableBehavior.php
3.x: https://github.com/dereuromark/cakephp-tools/blob/master/src/Model/Behavior/ConfirmableBehavior.php
details:
http://www.dereuromark.de/2011/07/05/introducing-two-cakephp-behaviors/

Answer 4

I believe you need try save it into your model to catch your tos rules. I should do something like =
if(!$mymodel->save()){
// catch error tos.
}

Answer 5

$this->ModelName->invalidFields() returns an array of fields that failed validation.
You could try and search this for the tos field, and output a message if the key exists.
~untested (I'm not sure off the top of my head the exact structure of the invalidFields return array.
$failed_fields = $this->ModelName->invalidFields();
if(array_key_exists('tos', $failed_fields)) {
$this->Session->setFlash('Please accept the terms and conditions');
}

Answer 6

you don't even have to have validation rule for tos, just check that at the controller before saving the data.
if($this->data['Model']['tos']==1){
// save data
}else{
//set flash
}