我在使用RedBean时遇到了一些问题。我收到连接错误,无法弄清楚是什么意思,我已经看过谷歌,找不到任何有效的解决方案,我在这里尝试了类似的问题,但答案并没有真正帮助这个案例
我有两个类,User和DAL。
DAL班级:
namespace Models;
use Config\Helpers as Helpers;
use Lib\RedBean\R as R;
use Lib\RedBean\Plugin\ModelValidation as ModelValidation;
class DAL extends R
{
function __construct()
{
R::setup( 'mysql:host=localhost;dbname=angularjs', 'user', 'pass' );
R::ext('validate', function($bean)
{
return ModelValidation::validate($bean);
});
}
public function createBean($tableName)
public function create($bean)
public function read($tableName, $id = 0)
function __destruct()
{
R::close();
}
}
用户类:
namespace Models;
use Models\DAL as DAL;
use Lib\JWT\JWT as JWT;
use Config\Helpers as Helpers;
use Lib\RedBean\SimpleModel as SimpleModel;
class Usuario extends SimpleModel
{
public static $rules = [
'login' => [
'label' => 'Login',
'filter' => 'trim|sanitize_string',
'validation' => 'required|alpha_numeric',
],
'senha' => [
'label' => 'Senha',
'validation' => 'required|alpha_numeric|min_len,6',
'message' => 'I don not like this password. This is an example of a bad message.'
],
];
public function login()
public function logout()
public function criaUsuario()
{
$DAL = new DAL();
//user creation code
}
public function criaToken($usuarioId = 0)
{
$DAL = new DAL();
//Token creation code
}
}
这就是错误:
Fatal error: Uncaught exception 'Lib\RedBean\RedException' with message 'A database has already been specified for this key.' in D:\Projetos\Market Media\backend\Lib\RedBean\Facade.php:288
Stack trace:
#0 D:\Projetos\Market Media\backend\Lib\RedBean\Facade.php(206): Lib\RedBean\Facade::addDatabase('default', 'mysql:host=loca...', 'angularjs', 'root', false)
#1 D:\Projetos\Market Media\backend\Models\DAL.php(13): Lib\RedBean\Facade::setup('mysql:host=loca...', 'angularjs', 'root')
#2 D:\Projetos\Market Media\backend\Models\Usuario.php(67): Models\DAL->__construct()
#3 D:\Projetos\Market Media\backend\Models\Usuario.php(56): Models\Usuario->criaToken('27')
#4 D:\Projetos\Market Media\backend\API\UsuarioAPI.php(42): Models\Usuario->criaUsuario()
#5 D:\Projetos\Market Media\backend\API\BaseAPI.php(82): API\UsuarioAPI->criaUsuario(Array)
#6 D:\Projetos\Market Media\backend\Controllers\UsuarioController.php(13): API\BaseAPI->processAPI()
#7 D:\Projetos\Market Media\backend\index.php(26): Controllers\UsuarioController->start()
# in D:\Projetos\Market Media\backend\Lib\RedBean\Facade.php on line 288
答案 0 :(得分:6)
如果你在构造方法中使用 R :: setup()函数,你最常使用这种语法:
public __construct (){
if(!R::testConnection()){
R::setup($DSN, $USER, $PASSWORD);
}
}
答案 1 :(得分:0)
每次创建DAL rb的新实例时,请尝试在"默认"上设置数据库。键,尝试将R :: setup放在课堂上,一次在应用程序中
答案 2 :(得分:0)
此错误的另一个原因是您的连接详细信息可能不正确。例如数据库名称,用户名或密码。首先检查您的连接详细信息,然后尝试其他解决方案。