我是Laravel的新手，这是我在Laravel的第一个项目。平时，首先我正在开发一个完整的用户身份验证系统。我可以注册一个用户，可以发送用户验证电子邮件，点击后链接我可以激活一个新的用户帐户，可以登录并可以注销。但是，当我尝试注册另一个新用户和点击验证链接后，我面临一个例外，即< / p>
Illuminate \ Database \ QueryException
SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry '' for key 'users_code_unique' (SQL: update `users` set `code` = , `active` = 1, `updated_at` = 2014-07- 25 04:26:06 where `id` = 41)
现在这是我的route.php，
<?php
Route::get('/',array(
'as' =>'home',
'uses' =>'HomeController@index'
));
Route::get('/signin',array(
'as' =>'signin',
'uses' =>'AccountController@signinGet'
));
Route::get('/signup',array(
'as' => 'signup',
'uses' => 'AccountController@signupGet'
));
/*
/*
/Authenticated Group
*/
Route::group(array('before' => 'auth'),function(){
/*
/Sign Out(GET)
*/
Route::get('/signout',array
(
'as' => 'signout',
'uses' => 'AccountController@signoutGet'
));
});
/*
/UnAuthenticated Group
*/
Route::group(array('before' => 'guest'),function(){
/* CSRF Protect*/
Route::group(array('before' => 'csrf'),function(){
/*
/ Create Account(POST)
*/
Route::post('/signup',array(
'as'=> 'signup',
'uses'=>'AccountController@signupPost'
));
/*
/ Sign In(POST)
*/
Route::post('/signin',array(
'as' => 'signin-post',
'uses' => 'AccountController@signinPost'
));
});
/*
/ Sign In (GET)
*/
Route::get('/signin',array(
'as' => 'signin',
'uses' => 'AccountController@signinGet'
));
/*
/Create Account(GET)
*/
Route::get('/signup',array(
'as' => 'signup',
'uses'=> 'AccountController@signupGet'
));
Route::get('signup/account/activate/{code}',array(
'as' =>'activate-account',
'uses' =>'AccountController@activatePost'
));
});
?>
这是我的AccountController
<?php
class AccountController extends \BaseController {
public function signinGet()
{
return View::make('account.signin');
}
public function signinPost(){
$validator = Validator::make(Input::all(),array(
'email' => 'required|email',
'password' => 'required'
));
if($validator->fails()){
//redirect to the signin page
return Redirect::route('signin')
->withErrors($validator)
->withInput();
}else{
//Attempt user singin
$auth = Auth::attempt(array
(
'email' => Input::get('email'),
'password' => Input::get('password'),
'active' => 1
));
if($auth){
//Redirect To intented URL
return Redirect::intended('/');
}
else
{
return Redirect::route('signin')
->with('global','The username or password you provided is wrong or account not activated!');
}
}
return Redirect::route('signin')
->with('global','There is a problem Signing You in.');
}
/**
* Show the form for creating a new resource.
*
* @return Response
*/
public function signupGet()
{
return View::make('account.signup');
}
public function signupPost()
{
$validator = Validator::make(Input::all(), array(
'email' => 'required|max:255|email|unique:users',
'username' => 'required|min:3|unique:users',
'password' => 'required|min:6',
'password_again' => 'required|same:password'
)
);
if($validator->fails())
{
return Redirect::route('signup')
->withErrors($validator)
->withInput();
}else
{
$email = Input::get('email');
$username = Input::get('username');
$password = Input::get('password');
//Activation Code
$code = str_random(60);
$user = User::create(array(
'email' => $email,
'username' => $username,
'password' => Hash::make($password),
'code' => $code,
'active' => 0
)
);
if($user){
//User Activation Code Creation
Mail::send('emails.auth.activate', array('link' => URL::route('activate-account',$code), 'username' => $username),function($message) use ($user)
{
$message->to($user->email,$user->username)->subject('Activate Your Account');
});
return Redirect::route('signup')
->with('global','Your Account has been created! We have sent you an email to activate your account.Please Check the both the Inbox and Spam Folder.');
}
}
//return 'This is a Post Result';
}
public function activatePost($code){
$user = User::where('code','=',$code)->where('active','=',0);
if($user->count()){
$user = $user->first();
$user->active = 1;
$user->code = '';
if($user->save()){
return Redirect::route('home')
->with('global','Activated!.You can sign in now!');
}
}
else{
return Redirect::route('signup')
->with('global','Sorry!We could not activate your acount,please try again later.');
}
}
public function signoutGet(){
Auth::logout();
return Redirect::route('home');
}
}
?>
这是我的创建用户迁移文件
<?php
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class CreateUsersTable extends Migration {
public function up()
{
Schema::create('users', function(Blueprint $table)
{
$table->increments('id');
$table->string('username',255)->unique();
$table->string('email',255)->unique();
$table->string('password',60);
$table->string('password_temp',60);
$table->string('code',60)->unique();
$table->integer('active');
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* @return void
*/
public function down()
{
Schema::drop('users');
}
}
?>
这是我的user.php
<?php
use Illuminate\Auth\UserTrait;
use Illuminate\Auth\UserInterface;
use Illuminate\Auth\Reminders\RemindableTrait;
use Illuminate\Auth\Reminders\RemindableInterface;
class User extends Eloquent implements UserInterface, RemindableInterface {
public function getRememberToken()
{
return $this->remember_token;
}
public function setRememberToken($value)
{
$this->remember_token = $value;
}
public function getRememberTokenName()
{
return 'remember_token';
}
protected $fillable = array('email','username','password','password_temp','code','active');
use UserTrait, RemindableTrait;
/**
* The database table used by the model.
*
* @var string
*/
protected $table = 'users';
/**
* The attributes excluded from the model's JSON form.
*
* @var array
*/
protected $hidden = array('password', 'remember_token');
}
?>
现在问题是什么？
答案 0 :(得分：6)
确保您的code字段为nullable，然后将其设置为空字符串，而不是将其设为空：
$code = null;
然后，您将能够将其保存为NULL（MySQL），同时保持唯一。
同样改变这个：
$user = User::where('code','=',$code)->where('active','=',0);
if($user->count()){
$user = $user->first();
要：
$user = User::where('code','=',$code)->where('active','=',0)->first();
if(count($user)){
您不需要两次调用db，只需检查返回的结果是否为空（count即可），这意味着它返回了一个User对象。
答案 1 :(得分：1)
我找到了。您已将代码列设置为唯一，但在用户单击激活链接后将其设置为空字符串。表格中已经有一行代码=＆＃39;＆＃39 ;;所以它抛出一个错误。问题出在这里（activatePost）：
$user->code = '';
因此，要么将其清空，将其设置为其他内容，要么将db colums设置为不唯一。
我会保留代码而不会清空它，另外我会检查用户是否被激活 - 在activatePost中是一个简单的if。也许最好不仅根据代码验证用户，还要在链接中使用散列ID进行验证。
答案 2 :(得分：1)
您的问题可以使用验证器进行检查。只需使用：
use Validator;
use Request;
//...
//unique will pre check the key code weather if unique in tbl_name
public function yourfunc(Request $request) {
// set the rules to check
$rules = ['code'=>'required|unique:tbl_name'];
$validator = Validator::make($request->all(), $rules);
if ($validator->fails()) {
// handler errors
$erros = $validator->errors();
}
//... everything is ok here
}
答案 3 :(得分：0)
您需要做一些改进代码的事情。但是，当您将列设置为唯一并尝试将相同数据重新插入另一行时，通常会发生重复条目。最让人困惑的是当你检查你的桌子并找到空列时。呐喊！当列设置为唯一且为空时，表示没有其他列可以包含空数据。
简单来说，列的形式不能复制，无论是null还是数据。