I have done someting like this. I also submitted a behavior to the
Bakery (has not been published yet), but it's called
ConditionValidation.
I can pass the behavior here. In the same case as yours, I have in my
form a check box "Reset password" ( a dummy field 'Work.rstpass', when
it's checked the password and confirm password must be mandatory. When
I add a user the Work.rstpass is an hidden field set to 1.
The behavior (saved in behaviors/condition_validation.php):
<?php
/*
* conditional behavior, allow to turn on/off validations based on
condition
*/
class ConditionalValidationBehavior extends ModelBehavior
{
/* store the current validation, useful if case of multiple 'save'
in same action
* see setConditionValidation
*/
var $savedValidation = null;
/* initialize the settings */
function setup(&$model, $params = array())
{
$this->settings = $params;
}
/* in case we need to restore the validation */
function afterSave(&$model)
{
if($this->savedValidation)
$model->validate = $this->savedValidation;
}
// set the model $validate array
function setConditionalValidation(&$model, $restore = false)
{
if(empty($this->settings))
return;
if($restore)
$this->savedValidation = $model->validate;
/* the data in condition must be coded as $data['Model']['field']
(do not use $this->data) */
foreach($this->settings as $condition)
{
if(isset($condition['condition']) && !
empty($condition['condition']))
$f = create_function('$data', 'return '.
$condition['condition'].' ? true : false;');
else
$f = create_function('$data', 'return true;');
/* reference to this->data passed to the function to evaluate
the condition,
if 'condition' is not present, the condition will be
assumed as true
*/
if($f(&$model->data))
{
$option = array_merge(array('remove' => array(), 'validate'
=> array()), $condition);
/* remove the fields in $validate */
if(!empty($option['remove']))
{
foreach($option['remove'] as $rmfield)
unset($model->validate[$rmfield]);
}
/* add some fields to validate */
if(!empty($option['validate']))
{
foreach($option['validate'] as $key => $addfield)
$model->validate[$key] = $addfield;
}
}
}
return;
}
}
?>
In order to have it working (because the beforeValidate is not a call
back for behaviors), you have 2 ways to do it :
1) In app_model :
// handle the conditionValidation behavior
function beforeValidate()
{
if(isset($this->actsAs['ConditionalValidation']))
$this->setConditionalValidation();
return parent::beforeValidate();
}
2) In your model (ie : User model for example)
function beforeValidate()
{
$this->setConditionalValidation();
return true;
}
My User model looks like this :
class User extends AppModel {
var $name = 'User';
var $validate = array(
'center_id' => VALID_NOT_EMPTY,
'username' => array(array('required' =>
VALID_NOT_EMPTY,
'rule' =>
array('custom', '/^[0-9a-z]+$/i'),
'message' =>
'alphaonly'),
array('rule' =>
'uniqueUserCheck',
'message' =>
'usernotunique')),
'inipassword' => array('rule' =>
array('checkPassword', 'P'),
'message' =>
'passwordsyntax'),
'confirmpassword' => array('rule' =>
array('checkPassword', 'C'),
'message' =>
'passwordmismatch'),
'email' => array(array('allowEmpty' =>
true, 'rule' => 'email'))
);
var $actsAs = array('ConditionalValidation' =>
array(array('condition' => '$data[\'Work\'][\'rstpass\'] != 1',
'remove' => array('inipassword', 'confirmpassword'),
'validate' => array('name' => VALID_NOT_EMPTY))
)
);
Basically, the condition is evaluated beforeValidate ..if true all the
"remove" are removed from the validate array, and all "validate are
"added" to the validate array.
I use "inipassword" instead of password, because of the Auth component
hashing everything that has "password" as a name. I needed not hashed
because I verify the strength of password ...
Hope this helps.
On Aug 15, 3:44 pm, Charlie <[EMAIL PROTECTED]> wrote:
> Hi all,
>
> I saw this post but couldn't reply on it
> anymore:http://groups.google.com/group/cake-php/browse_thread/thread/c7c1f546...
> and I was wondering if someone has any idea how to do this.
>
> I have my validation rules based on user registration. But if I want
> to have a form with resetting a user password it takes the validation
> rules which is logical. But I want to have a more slightly different
> validation for that password reset form (both are in the same model).
> f.e. While you register you can't leave the field username empty, but
> when you want to reset your password you can.
>
> Has anyone an idea how to solve this?
>
> Thanx!
> - Charlie
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