Question

我正在尝试创建一个用户管理系统。在我想要实现“编辑用户”部分之前，一切都很顺利。通过在规则中忽略用户的ID，我成功地避免了使用唯一用户名和电子邮件字段的“问题”。
问题是，当我尝试将用户更新为不存在的用户名或电子邮件时，一切正常。但是当我试图对已经存在的东西做同样的事情时，我得到一个错误：

SQLSTATE [23000]：完整性约束违规：1062重复条目'users_username_unique'的重复条目'existing_username_here'

我已经在我的规则中实现了“独特”字段，因此我不知道这有什么问题。有没有办法可以捕获这个特定的异常并向用户显示？有没有办法解决这个问题？我一直在寻找数小时，我似乎找不到任何有用的东西。

编辑：它似乎尝试插入新原始而不是更新现有的原始数据......！我不知道为什么会这样。有什么想法吗？

AdminController.php

public function update($id)
    {
        if ( ! $this->validator->isValidForAdminEdit()) {
        return Redirect::back()->withErrors($this->validator->errors())->withInput();
    }

    $user = $this->register->getUserById($id);
    $data = [
        'id' => $user->id,
        'first_name' => Input::get('first_name'),
        'email' => Input::get('email'),
        'username' => Input::get('username'),
        'password' => Input::get('password'),
        'activated' => Input::get('activated'),
        'assign_role' => Input::get('assign_role')
    ];

    $updatedUser = $this->adminRegister->update($data); 

    return Redirect::to('admin/users')
    ->with(['flash_message' => "The user $updatedUser->username has been edited.",
            'flash_type' => 'success']);

}

DbAdminRepository.php

public function update(array $data)
    {

    $user = Register::find($data['id']);
    $user->first_name = $data['first_name'];
    $user->username = $data['username'];
    $user->email = $data['email'];
    if (isset($data['password']) && ($data['password'] != "")) {
        $user->password = Hash::make($data['password']);
    }
    $user->activated = (! isset($data['activated']) ? (int)0 : (int)1);
    $role = $data['assign_role'];

    $user->save();   // THE PROBLEM SEEMS TO BE HERE
    $user->roles()->detach();
    $user->roles()->attach($role);

    return $user;
}

Validator.php

public function isValidForAdminEdit(array $rules = array())
    {
    // if there are no rules return true.
    if(!isset(static::$rules)) return true;

    $rules = self::processRules($rules ? $rules : static::$admin_edit_rules);
    $validator = V::make($this->attributes, $rules);

    if ($validator->fails()) {
        $this->errors = $validator->messages();
        return false;
    }
    return true;
}

protected function processRules(array $rules)
{
    // get the model's ID.
    // If the ID is null, it's a new Model, so let's strip out the id completely.
    $id = $this->attributes['id'];
    $replacement = $id == null ? "" : "," . $this->attributes['id'];
    array_walk($rules, function(&$item) use ($replacement)
    {
    // Replace placeholders
        $item = stripos($item, ',:id:') !== false ? str_ireplace(',:id:', $replacement, $item) : $item;
    });
    return $rules;
}

public function errors()
{
    return $this->errors;
}

UserValidator.php

static $admin_edit_rules = [
    'username' => 'Required|Min:3|Max:32|Unique:registers,username,:id:',

    'email'  => 'Required|Between:3,64|Email|Unique:registers,email,:id:',

    'first_name' => 'Required|Min:3|Max:80|Alpha',

    'password'  =>'AlphaNum|Between:4,20|Confirmed',

    'password_confirmation'=>'AlphaNum|Between:4,20',

];

Laravel 4 - 完整性约束违规：1062重复输入

0 个答案: