How do you perform Form validation without a model in Cakephp?

Question

I need to perform some validation. I don\'t have the model in the application.

Does anyone know how to do the validation without a model? Can you show me using a small s

Answer 1

@ThinkingMedia's answer got me going in the right direction, but $model->save($this->data) was returning false for me unfortunately, even when the form was valid. I'm using CakePHP 2.3.9 for reference.

It turned out that even with 'table' => false parameter set, the returned$success of save() was based on a $count > 0 of the rows that were created/updated/modified. In my table-less case, this meant a $count of 0 and $success was false. I ended up blending the referenced answer with this similar question's solution to have validation work properly without a model file:

function edit()
{
   $model = ClassRegistry::init(array('class'=>'YourFormName','table'=>false,'type'=>'Model'));
   if($this->request-is('post'))
   {
       $model->validate = array(
           'some_field'=>array(
               'rule'=>'notEmpty',
               'required'=>true
           ),
           'another_field'=>array(
               'rule'=>'notEmpty',
               'required'=>true
           )
       );
       $model->set($this->request->data)
       if($model->validates($this->request->data) && empty($model->validationErrors))
       {
           // validation was successful, but no data was actually saved
       }
   }
}