Laravel验证与多选择

我正在做一个多选择表单元素更新学校和专业数据透视表school_specialty。问题是，当我只改变多选择其他输入或textareas时，我不能听模型事件，所以我不能同步school_specialty表。但是，当我填写任何其他输入时，它是完美的。下面是从刀片我多选：Laravel验证与多选择

{{Form::select('specialties[]', $specialties_data, $school->specialties, array('multiple' => 'true', 'id' => 'multi-select'))}}

这是从学校控制器我的更新方法：

public function update($id) 
{ 
    $data = Input::only('name', 'type_id', 'description', 'info_specialties', 'contacts', 'specialties', 'financing_id', 'district_id', 'city_id'); 

    $school = School::find($id); 
    $school->name = $data['name']; 
    $school->type_id = $data['type_id']; 
    $school->description = $data['description']; 
    $school->info_specialties = $data['info_specialties']; 
    $school->contacts = $data['contacts']; 
    $school->cover_photo = Input::file('cover_photo'); 
    $school->set_specialties = $data['specialties']; 
    $school->financing_id = $data['financing_id']; 
    $school->set_district_id = $data['district_id']; 
    $school->city_id = $data['city_id']; 

    try { 
     $school->save(); 
    } catch (ValidationException $errors) { 
     return Redirect::route('admin.schools.edit', array($id)) 
      ->withErrors($errors->getErrors()) 
      ->withInput(); 
    } 

    return Redirect::route('admin.schools.edit', array($id)) 
     ->withErrors(array('mainSuccess' => 'School was created.')); 
}

这是我的例子办学模式：

<?php 

class School extends Eloquent { 
    protected $table = 'schools'; 

    protected $fillable = array('name', 'type_id', 'description', 'city'); 
    protected $guarded = array('id'); 
    protected $appends = array('specialties'); 

    public $set_specialties; 
    public $set_district_id; 

    protected static function boot() 
    { 
     parent::boot(); 

     static::updating(function($model) 
     { 
      $data = array(
       'name' => $model->name, 
       'type_id' => $model->type_id, 
       'description' => $model->description, 
       'specialties' => $model->set_specialties, 
       'city_id' => $model->city_id 
      ); 

      $rules = array(
       'name' => 'required|min:3|max:50', 
       'type_id' => 'required|min:1|max:300000', 
       'description' => 'required|min:10', 
       'specialties' => 'required|array', 
       'city_id' => 'required|min:1|max:300000' 
      ); 

      $validator = Validator::make($data, $rules); 

      if ($validator->fails()) { 
       throw new ValidationException(null, null, null, $validator->messages()); 
      } else { 
       return true; 
      } 
     }); 

     static::updated(function($model) 
     { 
      if ($model->set_specialties != null) 
      { 
       $model->specialty()->sync($model->set_specialties); 
      } 
     }); 
    } 

    public function specialty() 
    { 
     return $this->belongsToMany('Specialty', 'school_specialty'); 
    } 
} 
?>

来源

2015-02-09 mertindervish

当更新唯一一所学校特色的学校模型事件不会被触发，因为学校模型保持不变。

我认为最简单最优雅的解决方案是触摸学校模型实例。这将修改School对象的updated_at字段，从而触发模型事件。要做到这一点的try/catch块前添加以下行：

if ($school->set_specialties !== null) { 
    $school->touch(); 
}

此外，验证不应该在模型中观察处理。请点击此处查看表单申请：https://laravel.com/docs/5.6/validation#form-request-validation。

来源

2018-03-11 04:00:24

Laravel验证与多选择

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