Laravel 5 Validation in controller - php

Question

I have 2 methods in my Controller and I need to validate it but I don't know how.
1st method which should allow all image extensions:
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:
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!');
}

Answer 1

First write new Request for your data
php artisan make:request ImageRequest
Than write in ImageRequest:
public function authorize()
{
return true;
}
public function rules()
{
return [
'img' => 'file|image',
]
}
If you want to customize error messages:
public function messages()
{
return [
'img.image' => 'Some custom message ...',
];
}
Last inject request to your method (don`t forget about use App\Http\Requests):
public function testing(Requests\ImageRequest $request) {
//for retrieving validation errors use:
$imgErrors = $errors->first('img');
}
More information about Form Request Validation
Or you can use Validator facade (don`t forget about use Validator):
$validator = Validator::make(
$image, [
'img' => 'file|image',
]
);
More information about A Note On Optional Fields