使用自定义表单/没有formhelper的Cakephp验证

Question

Can I use Cakephp validation without formhelper?

for example, I was created model, controller, and view like this

model:

class KnowledgeBase extends AppModel {
   public $useTable = 'corp_kb';

 public $validate = array(
        'kb_title' => array(
            'rule' => array('minLength', '2'), 
            'required' => true,
            'message' => 'min 2 char'
        ),
);
}

controller:

class KnowledgeBaseController extends AppController 
{
var $name = 'KnowledgeBase';
var $ext = '.php';
public $helpers = array ('Html', 'Form', 'Js');

function kb_fill()
    {
    $this->layout = 'ajax';
    }

function kb_input()
    {
    $this->autoRender = false;
    $this->KnowledgeBase->set($this->data);
    if(!empty($this->data))
    {
        if($this->KnowledgeBase->validates())
        {
        debug($this->data);
        }
        else
        {

        }
    }
    else 
    {
    echo "data empty";
    }
    }

view "kb_fill":

<form id="kb_frm" method="get" action="" >
<input type="text" name="data[Knowledgebase][kb_title]"/>
<button id="postbutton">Post !</button>
</form>

for some reason I used ajax to load post into kb_input via button id, and cannot use usual method. the cakephp validation not working, or not showing the message error how can I use it without formhelper?

Answer 1

You are halfway there. The method $this->KnowledgeBase->validates() in your Controller will only return true or false. To manually work on the validation errors, you'll need this:

if ($this->KnowledgeBase->validates()) {
    // it validated logic
} else {
    // didn't validate logic
    $errors = $this->KnowledgeBase->validationErrors;
}

Took the code sample from Validating Data from the Controller, I would recommend you to take a look at it, as you may find further information about how to validate your data via Controller.