控制器中的 Laravel 5 验证
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Laravel 5 Validation in controller
提问by Przemek
I have 2 methods in my Controller and I need to validate it but I don't know how.
我的控制器中有 2 个方法，我需要验证它，但我不知道如何进行。
1st method which should allow all image extensions:
第一种方法应该允许所有图像扩展：
public function testing(Request $request) {
if($request->hasFile('img')) {
$image = Input::file('img');
$filename = time() . '.' . $image->getClientOriginalExtension();
$path = public_path('images/' . $filename);
Image::make($image->getRealPath())->resize(200, 200)->save($path);
$file = $request->file('img');
return ['url' => url('images/' . $filename)];
}
}
2nd method which should only allow 1 word and if there is space, trim it into 1 word:
第二种方法应该只允许 1 个单词，如果有空格，则将其修剪为 1 个单词：
public function postDB(Request $request) {
$newName = $request->input('newName');
$websites = new Website();
$websites->name = $newName;
$websites->save();
return redirect('template')->with('status', 'Website has been saved successfully!');
}
回答by Odin Thunder
First write new Request for your data
首先为您的数据编写新的请求
php artisan make:request ImageRequest
Than write in ImageRequest:
比写在ImageRequest：
public function authorize()
{
return true;
}
public function rules()
{
return [
'img' => 'file|image',
]
}
If you want to customize error messages:
如果要自定义错误消息：
public function messages()
{
return [
'img.image' => 'Some custom message ...',
];
}
Last inject request to your method (don`t forget about use App\Http\Requests):
最后向您的方法注入请求（不要忘记使用 App\Http\Requests）：
public function testing(Requests\ImageRequest $request) {
//for retrieving validation errors use:
$imgErrors = $errors->first('img');
}
More informationabout Form Request Validation
有关表单请求验证的更多信息
Or you can use Validatorfacade (don`t forget about use Validator):
或者你可以使用Validator门面（不要忘记使用 Validator）：
$validator = Validator::make(
$image, [
'img' => 'file|image',
]
);
More informationabout A Note On Optional Fields
更多信息有关的一个注可选字段
