I am trying to write a CRUD for an API. However, when the validation fail, instead of redirecting the user to the home page, I want to return json
based response with the errors.
I am able to do that using the following code
public function store(Request $request)
{
try {
$validator = $this->getValidator($request);
if ($validator->fails()) {
return $this->errorResponse($validator->errors()->all());
}
$asset = Asset::create($request->all());
return $this->successResponse(
'Asset was successfully added!',
$this->transform($asset)
);
} catch (Exception $exception) {
return $this->errorResponse('Unexpected error occurred while trying to process your request!');
}
}
/**
* Gets a new validator instance with the defined rules.
*
* @param Illuminate\Http\Request $request
*
* @return Illuminate\Support\Facades\Validator
*/
protected function getValidator(Request $request)
{
$rules = [
'name' => 'required|string|min:1|max:255',
'category_id' => 'required',
'cost' => 'required|numeric|min:-9999999.999|max:9999999.999',
'purchased_at' => 'nullable|string|min:0|max:255',
'notes' => 'nullable|string|min:0|max:1000',
];
return Validator::make($request->all(), $rules);
}
Now, I like to extract some of my code into a form-request
to clean up my controller little more. I like to change my code to something like the code below.
public function store(AssetsFormRequest $request)
{
try {
if ($request->fails()) {
return $this->errorResponse($request->errors()->all());
}
$asset = Asset::create($request->all());
return $this->successResponse(
'Asset was successfully added!',
$this->transform($asset)
);
} catch (Exception $exception) {
return $this->errorResponse('Unexpected error occurred while trying to process your request!');
}
}
As you can probably tell that $request->fails()
and $request->errors()->all()
is not going to work. How can I check if the request failed and then how can I get the errors out of the form-request?
For your reference, here is how my AssetsFormRequest
class look like
<?php
namespace App\Http\Requests;
use Illuminate\Foundation\Http\FormRequest;
class AssetsFormRequest extends FormRequest
{
/**
* Determine if the user is authorized to make this request.
*
* @return bool
*/
public function authorize()
{
return true;
}
/**
* Get the validation rules that apply to the request.
*
* @return array
*/
public function rules()
{
return [
'name' => 'required|string|min:1|max:255',
'category_id' => 'required',
'cost' => 'required|numeric|min:-9999999.999|max:9999999.999',
'purchased_at' => 'nullable|string|min:0|max:255',
'notes' => 'nullable|string|min:0|max:1000',
];
}
}
In your AssetFormRequest class, you can override failedValidation method to the following-
public $validator = null;
protected function failedValidation(\Illuminate\Contracts\Validation\Validator $validator)
{
$this->validator = $validator;
}
Then your controller method, do anything you want with your $validator object. May be something like the following-
if (isset($request->validator) && $request->validator->fails()) {
return response()->json($request->validator->messages(), 400);
}
You can see this link too for further details. Hope it helps :)
Add this function to your Request:
public function withValidator($validator)
{
if ($validator->fails()) {
Session::flash('error', 'Flash error!');
} else {
}
}
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