YII2.0后台如何手动添加用户功能？又是用哪种类来实现的？

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后台添加管理员用户使用SignupForm类实现

步骤一、复制一份前台frontend/models/SignupForm.php 到后台模型文件夹中 backend/models/SignupForm.php

步骤二、明确需要修改的文件为：新的SignupForm类，AdminuserController类中的actionCreate方法，create视图文件

步骤三、

修改SignupForm类 的namespace为backend/models

修改后台添加用户的视图文件

修改SignupForm类中的规则和需求字段

修改signup()方法，创建后台账户并将SignupForm类中的属性传递给Adminuser类成员，并保存进Adminuser数据表，实现代码如下

SignupForm类

<?php
namespace backend\models;use yii\base\Model;
use common\models\Adminuser;use yii\helpers\VarDumper;
/**
 * Signup form 
 */
 class SignupForm extends Model
{    public $username;    
public $email;    
public $password;    
public $password_repeat;    
public $nickname;    public $phone;    
  /**
   * {@inheritdoc}     
  */
    public function rules()
    {        return [
            [&#39;username&#39;, &#39;trim&#39;],
            [&#39;username&#39;, &#39;required&#39;],
            [&#39;username&#39;, &#39;unique&#39;, &#39;targetClass&#39; => &#39;\common\models\Adminuser&#39;, &#39;message&#39; => &#39;用户名已存在！&#39;],
            [&#39;username&#39;, &#39;string&#39;, &#39;min&#39; => 2, &#39;max&#39; => 255],

            [&#39;email&#39;, &#39;trim&#39;],
            [&#39;email&#39;, &#39;required&#39;],
            [&#39;email&#39;, &#39;email&#39;],
            [&#39;email&#39;, &#39;string&#39;, &#39;max&#39; => 255],
            [&#39;email&#39;, &#39;unique&#39;, &#39;targetClass&#39; => &#39;\common\models\Adminuser&#39;, &#39;message&#39; => &#39;邮箱已存在！&#39;],

            [&#39;password&#39;, &#39;required&#39;],
            [&#39;password&#39;, &#39;string&#39;, &#39;min&#39; => 6],
            [&#39;password_repeat&#39;, &#39;required&#39;],
            [&#39;password_repeat&#39;, &#39;compare&#39;,&#39;compareAttribute&#39;=>&#39;password&#39;,&#39;message&#39;=>&#39;两次输入的密码不一致&#39;],

            [&#39;nickname&#39;, &#39;required&#39;],
            [&#39;email&#39;, &#39;string&#39;, &#39;max&#39; => 128],

            [&#39;phone&#39;, &#39;required&#39;],
            [[&#39;phone&#39;], &#39;unique&#39;,&#39;targetClass&#39; => &#39;\common\models\Adminuser&#39;,&#39;message&#39;=>&#39;{attribute}已经被占用了&#39;],
            [&#39;phone&#39;,&#39;match&#39;,&#39;pattern&#39;=>&#39;/^1[0-9]{10}$/&#39;,&#39;message&#39;=>&#39;{attribute}必须为1开头的11位纯数字&#39;],
        ];
    }    public function attributeLabels()
    {        return [            &#39;id&#39; => &#39;ID&#39;,
            &#39;username&#39; => &#39;用户名&#39;,
            &#39;password&#39; => &#39;密码&#39;,
            &#39;password_repeat&#39; => &#39;再次输入密码&#39;,
            &#39;email&#39; => &#39;邮箱&#39;,
            &#39;nickname&#39; => &#39;昵称&#39;, 
            &#39;phone&#39; => &#39;手机号&#39;, 
        ];
    }    
    /**
     * Signs user up.
     *
     * @return User|null the saved model or null if saving fails     
     */
    public function signup()
    {        if (!$this->validate()) {            
    return null;
        }        
        $user = new Adminuser();        
        $user->username = $this->username;        
        $user->nickname = $this->nickname;        
        $user->phone = $this->phone;        
        $user->email = $this->email;        
        $user->setPassword($this->password);        
        $user->generateAuthKey();        
        $user->created_at = time();        
        $user->updated_at = time();        
        /*
        //保存调试
        $user->save();
        VarDumper::dump($user->errors);
        exit(0);        */
        return $user->save() ? $user : null;
    }
}

create视图文件

<?php
use yii\helpers\Html;
use yii\widgets\ActiveForm;
/* @var $this yii\web\View */
/* @var $model common\models\Adminuser */
$this->title = &#39;Create Adminuser&#39;;
$this->params[&#39;breadcrumbs&#39;][] = [&#39;label&#39; => &#39;Adminusers&#39;, &#39;url&#39; => [&#39;index&#39;]];
$this->params[&#39;breadcrumbs&#39;][] = $this->title;
?>
<p class="adminuser-create">

    <h1><?= Html::encode($this->title) ?></h1>

   <?php $form = ActiveForm::begin(); ?>

    <?= $form->field($model, &#39;username&#39;)->textInput([&#39;maxlength&#39; => true]) ?>

    <?= $form->field($model, &#39;password&#39;)->passwordInput([&#39;maxlength&#39; => true]) ?>
    <?= $form->field($model, &#39;password_repeat&#39;)->passwordInput([&#39;maxlength&#39; => true]) ?>
    <?= $form->field($model, &#39;email&#39;)->textInput([&#39;maxlength&#39; => true]) ?>

    <?= $form->field($model, &#39;nickname&#39;)->textInput([&#39;maxlength&#39; => true]) ?> 
    <?= $form->field($model, &#39;phone&#39;)->textInput([&#39;maxlength&#39; => true]) ?> 
    <p class="form-group">
        <?= Html::submitButton(&#39;Save&#39;, [&#39;class&#39; => &#39;btn btn-success&#39;]) ?>
    </p>

    <?php ActiveForm::end(); ?>


</p>

AdminuserController类中actionCtreate方法修改

<?php   
public function actionCreate()
    {        $model = new SignupForm();        
    if ($model->load(Yii::$app->request->post())) {            
    if($user = $model->signup()){                
    return $this->redirect([&#39;view&#39;, &#39;id&#39; => $model->id]); 
            }
            
        }        return $this->render(&#39;create&#39;, [            
        &#39;model&#39; => $model,
        ]);
    }

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