Question

第一个问题是我的表中有以下验证器和公共函数

UsersTable.php

   $validator
        ->scalar('name')
        ->maxLength('name', 45)
        ->requirePresence('name', 'create')
        ->notEmptyString('name', 'You must enter a name for the user.');

   $validator
       ->add('name', 'custom', array('rule' => 'checkExistingUser', 'message' => 'This user already appears to be in the system.', 'on' => 'create'));

   public function checkExistingUser($value,$context)
{
    return $this->find('all', ['conditions' => ['Users.name' => $context['data']['name'], 'Users.user_type_id' => $context['data']['user_type_id']]])->count() < 1 ;

}

当我保存下面的表单时，我收到消息“方法checkExistingUser不存在”。当在表模型中明确定义该方法时，为什么不识别该方法？我想念什么吗？

add.ctp

<?php echo $this->Form->create($user);?>
    <fieldset>
            <legend><?php echo __('Add User'); ?></legend>
    <?php
            echo $this->Form->control('name', ['type' => 'text']);
        echo $this->Form->control('user_type_id');
    echo $this->Form->control('owner', array('type' => 'text', 'label' => "Owner Name"));
    echo $this->Form->control('owner_contact', array('type' => 'text', 'label' => "Owner Contact (phone, email etc)"));
    echo $this->Form->control('description', ['type' => 'textarea']);
            echo $this->Form->control('ia_exception', array('type' => 'text', 'label' => "IA Exception Number"));
            echo $this->Form->control('is_manual', array('type' => 'checkbox', 'label' => "Password Updated Manually"));
            echo $this->Form->control('Environment', ['type' => 'select', 'multiple' => 'true', 'label' => 'Environment(s)']);
    ?>
    </fieldset>
<div class="buttons">
<?php
echo $this->Form->button('Save', ['type'=> 'submit', 'name' => 'submit']);
echo $this->Form->button('Cancel', ['type' => 'button', 'name'=>'cancel', 'onClick' => 'history.go(-1);return true;']);
echo $this->Form->end();
?>
</div>

UsersController.php

    function add() {

            $user = $this->Users->newEntity();

            if ($this->request->is('post')) {
                    $user = $this->Users->patchEntity($user, $this->request->data);

                    if ($this->Users->save($user)) {
                            $this->Flash->set('The user has been saved');
                            return $this->redirect(array('action' => 'index'));
                    } else {
                            $this->Flash->set('The user could not be saved. Please, try again.');
                    }
            }
            $userTypes = $this->Users->UserTypes->find('list');
            $changeSteps = $this->Users->ChangeSteps->find('list');
            $environments = $this->Users->Environments->find('list');
            $this->set(compact('user','userTypes', 'changeSteps', 'environments'));
    }

第二个问题是当我尝试提交表单以检查验证器对于空的 name 字段是否正常工作时，我没有收到消息“您必须输入用户名”。相反，我收到一条消息，指出“此字段为必填字段”。为什么不显示来自notEmptyString的消息？哪里是“此字段必填”？

Answer 1

对于第一个问题，我必须在验证器中添加一个提供程序。

我改变了

package webproxy

import (
    "fmt"
    "io"
    "net/http"
)

type proxyHandler struct {
    requestHook  RequestHookFunc
    responseHook ResponseHookFunc
}

func getHandler(requestHookIn RequestHookFunc, responseHookIn ResponseHookFunc) http.Handler {
    fmt.Printf("%#v\n", requestHookIn)
    return &proxyHandler{requestHook: requestHookIn, responseHook: responseHookIn}
}

// ServeHttp
func (handler *proxyHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
    fmt.Printf("%#v\n", handler.requestHook)
    if handler.requestHook != nil {
        fmt.Println("Yaha")
        handler.requestHook(r)
    }

    w.Header().Set("Content-Type", "text/plain")
    w.WriteHeader(http.StatusOK)
    io.WriteString(w, "This HTTP response has both headers before this text and trailers at the end.\n")
}

对此

 $validator
   ->add('name', 'custom', array('rule' => 'checkExistingUser', 'message' => 'This user already appears to be in the system.', 'on' => 'create'));

Answer 2

打补丁时要注意自定义的验证方法，因为 Cake 期望返回字符串，否则会渲染默认消息。例如，如果我们在打补丁时使用自定义验证函数

 // in a Controller
 $this->Users->patchEntity($user, $data, ['validate' => 'custom');

同样适用于关闭。

 // in UserTable.php
 public function validationCustom(Validator $validator) {
        $validator = $this->validationDefault($validator);
        $validator           
        ->minLength('password',8,'At least 8 digits');
        $validator->add('password',  
            'strength_light',[
                'rule' => 'passwordCheck',
                'provider' => 'table',               
                'message' => 'At least a number and a capital letter'
            ]
            );
        return $validator;
    }
    public function passwordCheck ($value = "") {            
        return preg_match("/^(?=.*?[A-Z])(?=.*?[a-z])(?=.*?[0-9])(?=.*?[#?!@$%^&*-]).{8,}/",$value);
}

这将返回默认消息而不是自定义消息（“至少..”），因为我们设置了一个可调用的 not-cakephp 函数作为自定义验证的规则，因此该消息应该由被调用的函数返回：

 public function passwordCheck ($value = "") {            
     if (!preg_match("/^(?=.*?[A-Z])(?=.*?[a-z])(?=.*?[0-9])(?=.*?[#?!@$%^&*-]).{8,}/",$value))
         return "At least a number and a capital letter";

    }

Cakephp 3无法识别自定义验证规则方法，并且未显示验证消息

2 个答案: