我正在使用 cakePHP 编写一个客户管理系统（我尝试使用此框架构建的第一件事），并且我正在努力弄清楚如何在添加新客户时验证某些字段。每个客户都有一个我需要手动添加的 ID，以及一个必须唯一但可以为空的用户名。这是我想要发生的事情：
- 添加新客户时：
- 检查 id 是否已经存在，如果存在则提醒用户（而不是添加用户）
- 检查用户名是否已经存在，如果存在则提醒用户（而不是添加用户）
- 更新客户资料时（此时无法修改 id）：
- 如果用户名被修改，检查是否已经存在并提醒用户。
就目前而言，每当我尝试添加具有现有 id 的用户时，cakePHP 只会用新信息覆盖现有 id 的信息。
我尝试了几个验证选项，但似乎没有任何效果。
这是第一个：
public $validate = array(
'id' => array(
'idRule-1' => array(
'on' => 'create',
'rule' => 'uniqueID',
'message' => 'This Oracle ID already exists.',
'last' => false
),
'idRule-2' => array(
'rule' => 'numeric',
'message' => 'Oracle ID can only contain numbers.',
'last' => false
),
),
'username' => array(
'userRule-1' => array(
'on' => 'create',
'rule' => 'uniqueUser',
'message' => 'This username already exists',
'last' => false,
),
'userRule-2' => array(
'on' => 'update',
'rule' => 'oneUser',
'message' => 'The eBay username you are trying to modify already belongs to another seller',
'last' => false,
),
)
);
public function uniqueID() {
return ($this->find('count', array('conditions' =>array('Seller.id' => $this->data['Seller']['id']))) == 0);
}
public function uniqueUser() {
return ($this->find('count', array('conditions' =>array('Seller.username' => $this->data['Seller']['username']))) == 0);
}
public function oneUser() {
return ($this->find('count', array('conditions' =>array('Seller.username' => $this->data['Seller']['username']))) == 1);
}
第二个（仅用于 id）：
public $validate = array(
'id' => array(
'unique' => array(
'rule' => 'isUnique',
'on' => 'create',
'message' => 'This Oracle ID already exists.',
)
)
);
下面是控制器的 add() 和 edit() 方法：
public function add() {
if ($this->request->is('post')) {
$this->Seller->create();
if ($this->Seller->save($this->request->data)) {
$this->Session->setFlash(__('The seller has been saved'));
$this->redirect(array('action' => 'index'));
} else {
$this->Session->setFlash(__('The seller could not be saved. Please, try again.'));
}
}
$accountManagers = $this->Seller->AccountManager->find('list');
$primaries = $this->Seller->Primary->find('list');
$thirdParties = $this->Seller->ThirdParty->find('list');
$sites = $this->Seller->Site->find('list');
$meetings = $this->Seller->Meeting->find('list');
$this->set(compact('accountManagers', 'primaries', 'thirdParties', 'sites', 'meetings'));
}
/**
* edit method
*
* @throws NotFoundException
* @param string $id
* @return void
*/
public function edit($id = null) {
if (!$this->Seller->exists($id)) {
throw new NotFoundException(__('Invalid seller'));
}
if ($this->request->is('post') || $this->request->is('put')) {
$this->Seller->id = $id;
if ($this->Seller->save($this->request->data)) {
$this->Session->setFlash(__('The seller has been saved'));
$this->redirect(array('action' => 'index'));
} else {
$this->Session->setFlash(__('The seller could not be saved. Please, try again.'));
}
debug($this->Seller->validationErrors);
} else {
$options = array('conditions' => array('Seller.' . $this->Seller->primaryKey => $id));
$this->request->data = $this->Seller->find('first', $options);
}
$accountManagers = $this->Seller->AccountManager->find('list');
$primaries = $this->Seller->Primary->find('list');
$thirdParties = $this->Seller->ThirdParty->find('list');
$sites = $this->Seller->Site->find('list');
$meetings = $this->Seller->Meeting->find('list');
$this->set(compact('accountManagers', 'primaries', 'thirdParties', 'sites', 'meetings'));
}
任何和所有提示将不胜感激！