yii场景使用

最新推荐文章于 2022-06-24 11:32:31 发布

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最新推荐文章于 2022-06-24 11:32:31 发布

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CC 4.0 BY-SA版权

原文链接：https://segmentfault.com/a/1190000017795782

本文详细解析了在Yii框架中如何使用模型进行数据验证，包括不同场景下的验证规则设置，如创建和更新操作，以及默认场景的应用。通过具体示例展示了如何在控制器中指定场景并调用模型保存方法，从而实现对特定字段的验证。

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································场景1································
控制器：

$model->scenario='update';//指定场景
$model -> save();

模型中：

public function rules() {
    return [
        ['name','required','message'=>'用户名不能为空'],
        ['age','required','message'=>'年龄不能为空','on'=>'create'],
        ['pwd','required','message'=>'密码不能为空','on'=>'update']
    ];
}

结果：

验证name和pwd

································场景2································
控制器：

$model->scenario='update';
$model -> save();

模型中：

public function rules(){
    return [
        ['name','required','message'=>'用户名不能为空'],
        ['age','required','message'=>'年龄不能为空','on'=>'create'],
        ['pwd','required','message'=>'密码不能为空','on'=>'update'],
        ['level','required','message'=>'等级不能为空','on'=>'update'],
    ];
}
public function scenarios(){
       return [
            'update'=>['pwd'],
        ]
}

结果：

验证pwd

································场景3································
控制器：

$model -> save();

模型中：

public function rules(){
    return [
        ['name','required','message'=>'用户名不能为空'],
        ['age','required','message'=>'年龄不能为空','on'=>'create'],
    ];
}

public function scenarios(){
    return [
        'update'=>['pwd'],
    ];
}

结果：

  报错，缺少场景

································场景4································
控制器：

$model -> save();

模型中：

public function rules(){
    return [
        ['name','required','message'=>'用户名不能为空'],
        ['level','required','message'=>'等级不能为空'],
        ['age','required','message'=>'年龄不能为空','on'=>'create'],
    ];
}
public function scenarios(){
    return [
        'update'=>['pwd'],
        'default'=>['name']
    ];
}

结果：

验证name

································场景5································
控制器：

$model -> save();

模型中：

public function rules(){
    return [
        ['name','required','message'=>'用户名不能为空'],
        ['age','required','message'=>'年龄不能为空','on'=>'create'],
    ];
}

结果：

验证name