Laravel validation "Present" does not work - laravel

I have created a FormRequest for updating a BlogPost as UpdateBlogRequest.
I set thumbnail as a "present" for validation. but when this input is empty I get "The thumbnail field must be present."
Also I added input file with thumbnail name in HTML form.
UpdateBlogRequest:
<?php
namespace App\Http\Requests\Blog;
use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Validation\Rule;
class UpdateBlogRequest 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<string, mixed>
*/
public function rules()
{
return [
'name' => [
'required',
Rule::unique('blogs', 'name')->ignore($this->blog),
],
'body' => ['required'],
'excerpt' => ['present'],
'thumbnail' => ['present'],
];
}
}
I expected does not show error message for thumbnail when is empty

Related

Validating Nest JSON with Parameters

I am trying to validate a nested JSON object in Laravel. I have created a custom rule to do this however I have an issue currently, I want to be able to pass the object at the current array index to my custom validator:
<?php
namespace App\Http\Requests\App;
use App\Rules\CheckoutDepatureCheck;
use App\Rules\SeatIsAvailable;
use Illuminate\Foundation\Http\FormRequest;
class CheckoutRequest 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 [
"company" => "required",
"seats" => "required|array",
"seats.*.seat_no" => ['required', new SeatIsAvailable()], // would like to pass seat.* to the constructor of my custom validator here
"seats.*.schedule_id" => "required|numeric",
"seats.*.date" => "required|date"
];
}
}
The point for this is my custom validator needs schedule_id and data as well as the seat_no to successfully validate the request.
How do I do this in Laravel?
You can dynamically add rules depending on the length of the seats' array input
<?php
namespace App\Http\Requests\App;
use App\Rules\CheckoutDepatureCheck;
use App\Rules\SeatIsAvailable;
use Illuminate\Foundation\Http\FormRequest;
class CheckoutRequest 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()
{
$rules = [
'company' => 'required',
'seats' => 'required|array',
];
return array_merge($rules, $this->seatsRules());
}
private function seatsRules(): array
{
$rules = [];
foreach ((array) $this->request->get('seats') as $key => $seat) {
$rules["seats.$key.seat_no"] = ['required', new SeatIsAvailable($seat)];
$rules["seats.$key.schedule_id"] = 'required|numeric';
$rules["seats.$key.date"] = 'required|date';
}
return $rules;
}
}

Merge Form Request Validation for store and update

I am using Request validation to validate the user's input.
This is UpdateUser:
<?php
namespace App\Http\Requests;
use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Support\Arr;
use Illuminate\Support\Facades\Gate;
class UpdateUser extends FormRequest
{
/**
* Determine if the user is authorized to make this request.
*
* #return bool
*/
public function authorize()
{
return Gate::allows('update-user');
}
/**
* Get the validation rules that apply to the request.
*
* #return array
*/
public function rules()
{
$user_id = Arr::get($this->request->get('user'), 'id');
return [
'user.firstname' => 'required|string|max:255',
'user.lastname' => 'required|string|max:255',
'user.email' => "required|string|email|max:255|unique:users,email,{$user_id}",
'user.password' => 'sometimes|nullable|string|min:4|confirmed',
];
}
}
As you can see, there is some update-specific stuff happening:
The authorize() method checks whether the user is allowed to update-user and inside the rules I am excluding the row of the current user from being unique:
'user.email' => "required|string|email|max:255|unique:users,email,{$user_id}",
As I would like to merge UpdateUser and StoreUser, what would be the most efficient and readable way to determine, whether I am updating or saving?
This is my current approach:
<?php
namespace App\Http\Requests;
use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Support\Arr;
use Illuminate\Support\Facades\Gate;
class UpdateUser extends FormRequest
{
/**
* Determine if the user is authorized to make this request.
*
* #return bool
*/
public function authorize()
{
if($this->isUpdating())
{
return Gate::allows('update-user');
}
return Gate::allows('create-user');
}
/**
* Get the validation rules that apply to the request.
*
* #return array
*/
public function rules()
{
if($this->isUpdating()){
$user_id = Arr::get($this->request->get('user'), 'id');
return [
...
];
}
return [];
}
/**
* #return bool
*/
protected function isUpdating(){
return $this->isMethod('put') || $this->isMethod('patch');
}
}
I am wondering if I may extend the FormRequest class and provide isUpdating() by default.
Your update and store method are not the same request type, you have PUT and PATCH method on your request instance, so you can check the request type as like :
switch ($request->method()) {
case 'PATCH':
// do anything in 'patch request';
break;
case 'PUT':
// do anything in 'put request';
break;
default:
// invalid request
break;
}
I learnt about a new approach to validation some time ago using separate validator class and I kinda like it a lot. Let me show you
Create a directory Validators and a class inside UserValidator
class UserValidator
{
public function rules(User $user)
{
return [
'user.firstname' => [
'required',
'string',
'max:255',
],
'user.lastname' => [
'required',
'string',
'max:255',
],
'user.email' => [
$user->exists ? 'sometimes' : null,
'required',
'string',
'email',
'max:255',
Rule::unique('users', 'email')->ignore($user->exists ? $user->id : null)
],
'user.password' => [
$user->exists ? 'sometimes' : null,
'required',
'string',
'min:8'
],
];
}
public function validate(array $data, User $user)
{
return validator($data, $this->rules($user))
//->after(function ($validator) use ($data, $user) {
// Custom validation here if need be
//})
->validate();
}
}
Then authorization can be done in Controller
class UserController
{
use AuthorizesRequests;
/**
* #param Request $request
*/
public function store(Request $request)
{
$this->authorize('create_user', User::class);
$data = (new UserValidator())->validate(
$request->all(),
$user = new User()
);
$user->fill($data)->save();
}
/**
* #param Request $request
* #param \App\user $user
*/
public function update(Request $request, User $user)
{
$this->authorize('update_user', $user);
$data = (new UserValidator())->validate(
$request->all(),
$user
);
$user->fill($data)->save();
}
}
This was proposed and explained by (twitter handle) #themsaid

Laravel: Using policy on FormRequest always returns false

I'm trying to authorize whether a user is allowed to invite other users.
InvitedUserController
public function store(InvitedUserRequest $request)
{
$data = $request->all();
$data['user_id'] = auth()->user()->id;
$data['account_id'] = $request->session()->get('account_id');
InvitedUser::create($data);
}
I created a FormRequest class to handle validation:
class InvitedUser extends FormRequest
{
/**
* Determine if the user is authorized to make this request.
*
* #return bool
*/
public function authorize(Request $request)
{
$account = Account::find($request->session()->get('account_id'));
return $this->user()->can('manageUsers', $account);
}
/**
* Validation error message
*/
public function messages() {
return [
'max' => 'You may only enter up to :max characters'
];
}
public function invalid() {
}
/**
* Get the validation rules that apply to the request.
*
* #return array
*/
public function rules()
{
return [
'email' => 'required|max:255|email',
'role_id' => 'required|exists:roles,id',
];
}
}
Then my policy to handle authorization:
class InvitedUserPolicy
{
use HandlesAuthorization;
/**
* Determine whether the user can view any models.
*
* #param \App\User $user
* #return mixed
*/
public function manageUsers(User $user, Account $account)
{
dd('test');
$role = $user->roles()->wherePivot('account_id', $account->id)->first();
return $role->manage_users;
}
}
I registered the policy:
protected $policies = [
// 'App\Model' => 'App\Policies\ModelPolicy',
'App\InvitedUser' => 'App\Policies\InvitedUserPolicy'
];
For some reason, that dd() call doesn't even occur. So it's not reaching my policy and all requests are returning unauthorized.
even if i changed my policy to return true
public function manageUsers(User $user, Account $account)
{
return true;
}
I would still get unauthorized
How Can I call my policy from a FormRequest? Why is this not working?
So, while this is confusing to me, I've figured out the issue.
I needed to change my registered policies to the following:
protected $policies = [
// 'App\Model' => 'App\Policies\ModelPolicy',
'App\Account' => 'App\Policies\InvitedUserPolicy'
];
It's using the Account model instead of InvitedUser model. I think because that's what I'm passing in as a model?

Laravel 5.7: Custom attributes for form validation not working

I'd like to validate a form using both custom messages and attributes. Instead of name: The name may not be greater than 20 characters. the user should see Name: Please use fewer characters., for example.
I'm using AJAX and both keys and values of the response.data.errors object that Laravel returns. Im using Laravel 5.7.
This is a simplified version of the validator function in my RegisterController.
protected function validator(array $data)
{
// Nice attribute names
$attributes = [
'name' => 'Name',
// ...
];
// Custom messages
$messages = [
'max' => 'Please use fewer characters.'
// ...
];
// Rules
$rules = [
'name'=> 'required|max:20',
// ...
];
// Working for messages, but not for attribute names
$validator = Validator::make($data, $rules, $messages, $attributes);
// Also not working
// $validator->setAttributeNames($attributes);
return $validator;
}
When there's a validation error, the user get's a message like name: Please use fewer characters.. That means the message from my custom array is displayed, but the default attribute name is used. What's wrong here?
Attributes do not replace key names, they are used to change the appearance of a key within a message - i.e The Name field is required - to achieve what you're trying to do in your question you'll need to create a new data array.
protected function validator(array $data)
{
$data = [
'Name' => $data['name'] ?? '',
// ...
];
// ...
Validator::make($data, $rules, $messages);
}
use Laravel Form Request, scroll down to Customizing The Error Messages section. Check out the below sample code.
use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Validation\Rule;
class UserRegistrationForm 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|max:20',
];
}
/**
* Get the error messages for the defined validation rules.
*
* #return array
*/
public function messages()
{
return [
'name.max' => 'Please use less characters'
];
}
}
In controller
public function register(UserRegistrationForm $request)
{
// do saving here
}
That is coming from validation.php located in resources/Lang/xx/
EDIT :
You'll have to use
$messages = [
'name.max' => 'Your sentence here',
];

How to validate images array type using rule object with custom message in Laravel

Actually, I tried to create rule object which is able to validate every image type in array of images and not only enough but also, I must to show custom message in override message function in rule object.
<?php
namespace App\Rules;
use Illuminate\Contracts\Validation\Rule;
class ImagesArray implements Rule
{
/**
* Create a new rule instance.
*
* #return void
*/
public function __construct()
{
//
}
/**
* Determine if the validation rule passes.
*
* #param string $attribute
* #param mixed $value
* #return bool
*/
public function passes($attribute, $value)
{
return [$attribute => 'mimes:jpeg,jpg,png' ];
here i need to validate these file types.
}
/**
* Get the validation error message.
*
* #return string
*/
public function message()
{
return 'The validation error message.';
here, I need to show my custom messgae.
}
}
You should use Request.
For example, create q request class: php artisan make:request MyRequest.
<?php
namespace App\Http\Requests;
use Illuminate\Foundation\Http\FormRequest;
class MyRequest 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 [
'image' => 'mimes:jpeg,jpg,png',
];
}
public function messages()
{
return [
'image.mimes' => 'This image is not supported.',
];
}
}
In your controller import class MyRequest and in the method use MyRequest
e.g:
public function store(MyRequest $request)
{ // your code
}
Let me know if that was helpful. Thanks!
When validating arrays or nested parameters, you should use . in your rules access a specific array index. but if you want to apply a rule to every index on that array, you can use .*.
$validator = Validator::make($request->all(), [
'image.*' => 'mimes:jpeg,jpg,png',
], [
'image.*' => 'Invalid file type.',
]);
Or if you're using Request Forms
public function rules(){
return [
'image.*' => 'mimes:jpeg,jpg,png',
];
}
public function mesages(){
return [
'image.*' => 'Invalid file type.',
];
}
For more info, see Laravel's Documentation on Validation Arrays

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