Laravel action when form validation generates error

Question

I am working with a form request file like this: ProjectCreateRequest.php

public function rules()
  {
    $project_name = $this->project_name;
    $meta_activity = $this->meta_activity;
    return [
      'project_name' => 'required|max:255|unique:projects',
      'customer_name' => 'required|max:255',
      'otl_project_code' => 'sometimes|max:255|unique:projects,otl_project_code,NULL,id,meta_activity,'.$meta_activity,
      'estimated_start_date' => 'date',
      'estimated_end_date' => 'date',
      'LoE_onshore' => 'numeric',
      'LoE_nearshore' => 'numeric',
      'LoE_offshore' => 'numeric',
      'LoE_contractor' => 'numeric',
      'revenue' => 'numeric',
      'win_ratio' => 'integer'
    ];
  }

There is the otl_project_code that must be unique with the meta_activity.

In case someone enters a pair of otl_project_code and meta_activity that already exists, it goes back to the create page with the error written below.

I would like to get instead that in the controller, I can catch this information, do something on the database then redirect to an update url.

Because I am working with a form validation request file, everything is entered in my controller like this:

public function postFormCreate(ProjectCreateRequest $request)

and I don't know how to catch this specific error in my controller to execute some actions with all the fields I submitted and not go back to the create page. Of course, this needs to happen only when there is the specific error I mentionned above.

user320487 · Accepted Answer · 2017-06-14 22:54:10Z

1

Override the FormRequest response function in your ProjectCreateRequest:

/**
 * Get the proper failed validation response for the request.
 *
 * @param  array  $errors
 * @return \Symfony\Component\HttpFoundation\Response
 */
public function response(array $errors)
{
    if ($this->expectsJson()) {
        return new JsonResponse($errors, 422);
    }

    return $this->redirector->to($this->getRedirectUrl())
                                    ->withInput($this->except($this->dontFlash))
                                    ->withErrors($errors, $this->errorBag);
}

That's the public response on the FormRequest class so you can write your own logic to perform DB queries and redirect where needed.

answered Jun 14, 2017 at 22:54

user320487

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