I'm using a tip I saw recently somewhere (Teknoid?) to validate HABTM on save:
$this->MainModel->OtherModel->set($this->data);
if (!$this->MainModel->OtherModel->validates())
{
$this->MainModel->OtherModel->invalidate('OtherModel');
}
else if ($this->MainModel->save($this->data))
{
...
OtherModel is named 'Discipline' in this case. That model's $validate:
public $validate = array(
'Discipline' => array(
'rule' => 'checkExists',
'message' => 'Please choose at least one discipline.'
)
);
public function checkExists()
{
return !empty($this->data['Discipline']['Discipline']);
}
So, this appears to be working, except that I can't figure out how to
display a message. All I get is "1" (number one).
I tried both $form->error('Discipline') and
$form->error('Discipline.Discipline') before I thought to dump the
$validationErrors in the view, which look like:
Array
(
[Discipline] => Array
(
[Discipline] => 1
)
)
The submitted data looks like this (empty form submission for testing):
Array
(
[MainModel] => Array
(
// empty fields
)
[Discipline] => Array
(
[Discipline] =>
)
)
The problem appears to be in Discipline->validate, because the rule
isn't on a field. Since Discipline is always a HABTM and only the ID
is passed, I changed it to:
public $validate = array(
'id' => array(
'rule' => 'checkExists',
'message' => 'Please choose at least one discipline.'
)
);
But, now, I don't get any error at all for Discipline. In fact,
checkExists doesn't even get used. I next tried:
public $validate = array(
'Discipline.Discipline' => array(
'rule' => 'checkExists',
'message' => 'Please choose at least one discipline.'
)
);
It still won't run. Cake doesn't seem to want to run the validation
rule unless I have just the single model name, and then won't pass the
error msg.
Ideas?
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