我有以下代码:
<?php
use Phalcon\Mvc\Controller;
use Phalcon\Mvc\Model\Query;
class SignupController extends Controller
{
public function indexAction()
{
}
public function registerAction()
{
$user = new Users();
// Store and check for errors
$success = $user->save(
$this->request->getPost(),
[
"name",
"email",
]
);
// Instantiate the Query
$query = new Query(
'SELECT email FROM users',
$this->getDI()
);
// Execute the query returning a result if any
$users = $query->execute();
if($user==$users)
{
echo "Email already exists";
}
else if ($success)
{
echo "Thanks for registering!";
} else
{
echo "Sorry, the following problems were generated: ";
$messages = $user->getMessages();
foreach ($messages as $message) {
echo $message->getMessage(), "<br/>";
}
}
$this->view->disable();
}
}
我想做的是检查给定的电子邮件是否已在数据库中注册。
我试图用这段代码来做到这一点
// Instantiate the Query
$query = new Query(
'SELECT email FROM users',
$this->getDI()
);
// Execute the query returning a result if any
$users = $query->execute();
if($user==$users)
{
echo "Email already exists";
}
它似乎不起作用,并且出现以下错误
“ 例外:在准备:选择来自用户的电子邮件时,无法从模型列表:“用户”中获取模型的来源”
我的型号列表代码如下
<?php
use Phalcon\Mvc\Model;
class Users extends Model
{
public $id;
public $name;
public $email;
}
有人可以告诉我我做错了什么,或者应该如何检查给定的电子邮件是否已经添加到数据库中,然后“回显”适当的消息。
提前感谢您的时间
最终生效的代码
<?php
use Phalcon\Mvc\Controller;
class SignupController extends Controller
{
public function indexAction()
{
}
public function getSource()
{
return 'users';
}
public function registerAction()
{
$user = new Users();
$email = $this->request->getPost('email', 'string', '');
$result = users::findFirst(
[
'conditions' => 'email = :email:',
'bind' => [
'email' => $email,
]
]
);
if (false !== $result) {
echo 'The email exists in the database';
} else {
// Store and check for errors
$success = $user->save(
$this->request->getPost(),
[
"name",
"email",
]
);
if ($success) {
echo "Thanks for registering!";
} else {
echo "Sorry, the following problems were generated: ";
$messages = $user->getMessages();
foreach ($messages as $message) {
echo $message->getMessage(), "<br/>";
}
}
$this->view->disable();
}
}
}
答案 0 :(得分:2)
对于您的错误,您需要告诉模型它映射到哪个表:
public function getSource()
{
return 'users';
}
一种更简单的方法是在模型上使用findFirst
,如下所示:
$email = $this->request->getPost('email', 'string', '');
$result = Users::findFirst(
[
'conditions' => 'email = :email:',
'bind' => [
'email' => $email,
]
]
);
if (false !== $result) {
echo 'The email exists in the database';
}
以上代码的作用:
-从发布的数据中获取email
。将其消毒为字符串。如果尚未发布,则返回一个空字符串
-在Users
模型中搜索email
字段的任何记录中存在的电子邮件。
-如果未返回任何内容,请继续,如果找到匹配项,则回显结果。