Validate form from another model

I have a project model which is related to a question model and a answer model. In project/view/ I added a form to insert a new question, and it works fine. But if I send the form with an error, it validates inside /question/add. I want those validation errors to show at the project/view/ page. How can I do that?

Thanks!

CODE:

    function add() {
    if (!empty($this->data)) {
        $this->Question->create();
        if ($this->Question->save($this->data)) {
            $this->Session->setFlash(__('The question has been saved', true));
            $this->redirect(array('action' => 'index'));
        } else {
            $this->Session->setFlash(__('The question could not be saved. Please, try again.', true));
        }
    }
}
开发者_运维技巧

THE FORM:

<?php echo $this->Form->create('Question', array('action' => 'add'));?>
<fieldset>
    <legend><?php __('Add Question'); ?></legend>
<?php
    echo $this->Form->input('text');
    echo $this->Form->hidden('Project', array('value' => $project['Project']['id']));
?>
</fieldset>
<?php echo $this->Form->end(__('Submit', true));?>

Both of them are similar, since they were baked by Cake.

As far as i understood you want to show validation errors on view page instead of add view.

    if ($this->Question->save($this->data)) {
        $this->Session->setFlash(__('The question has been saved', true));
        $this->redirect(array('action' => 'index'));
    } else {
        $this->Session->setFlash(__('The question could not be saved. Please, try again.', true));
        $this->Session->write('errors', $this->Question->validationErrors); //or you could use $this->Question->invalidFields()
        $this->redirect(array('controller' => 'projects', 'action' => 'view', $this->data['Project']['id']));
    }

Now in view echo($this->Session->read('errors'));

Edit: ok, to ensure proper model separation: because you want to show the validation errors on projects/view page, you still need to post the data to projects/view/$id (otherwise you'll have to deal with redirecting to referrer). You can write a method addQuestionForProject($data) in Question model, move the saving code there, and call that method in projects/view controller code.

<?php echo $this->Form->create('Question', array('controller'=>'projects','action' => 'view',{your project id here}));?>

projects controller

function view($id=null) {
if(!$id)$this->redirect(array('action' => 'index'));
if (!empty($this->data)) {
    if ($this->Project->Question->addQuestionForProject($this->data)) {
        $this->Session->setFlash(__('The question has been saved', true));
    } else {
        $this->Session->setFlash(__('The question could not be saved. Please, try again.', true));
    }
}
// read your project record here
}

I'm not sure if cake can detect the validation errors automatically in this case (it probably can); but if not, you can pass the errors back from addQuestionForProject and display it yourself.

Another way is using ajax call, so you can send the request directly to questions/add and return the errors array (in xml, json, or just plain html), but you'll have to display the errors yourself.

I just did what Ehtesham suggested and it worked!

In questions_controllers.php:

function add() {
    if (!empty($this->data)) {
        $this->Question->create();
        if ($this->Question->save($this->data)) {
            $this->Session->setFlash(__('The question has been saved', true));
            $this->redirect($this->referer());
        } else {
            $this->Session->setFlash(__('The question could not be saved. Please, try again.', true));
            $this->Session->write('question_error', $this->Question->invalidFields());
            $this->redirect($this->referer());
        }
    }
}

projects_controller.php:

function beforeFilter () {
    if ($this->Session->check('question_error')) {
        $this->Project->Question->validationErrors = $this->Session->read('question_error');
        $this->Session->delete('question_error');
    }
    }