PHP

laravel form validation

use IlluminateSupportFacadesValidator;

// .... 
  
// On your Store function 
 public function store(Request $request, $id)
// Validation 
        $validator = Validator::make($request, [
            'name' => 'required',
            'username' => 'required|unique:users,username,NULL,id,deleted_at,NULL',
            'email' => 'nullable|email|unique:users,email,NULL,id,deleted_at,NULL',
            'password' => 'required',
        ]);


// Return the message
        if($validator->fails()){
            return response()->json([
                'error' => true,
                'message' => $validator->errors()
            ]);
        }
  // ....
}


// On your Update function 
public function update(Request $request, $id)
    {
		// Validation
        $validator = Validator::make($input, [
            'name' => 'required',
            'username' => 'required|unique:users,username,' . $id. ',id,deleted_at,NULL',
            'email' => 'nullable|email|unique:users,email,' . $id. ',id,deleted_at,NULL',
            'roles' => 'required'
        ]);

        // Return the message
        if($validator->fails()){
            return response()->json([
                'error' => true,
                'msg' => $validator->errors()
            ]);
        }
  // ....
}

field not required validation laravel

$this->validate($request, [
	"field_nullable" => "nullable"
]

validation in laravel

use IlluminateSupportFacadesValidator;
 
class PostController extends Controller
{
    /**
     * Store a new blog post.
     *
     * @param  Request  $request
     * @return Response
     */
    public function store(Request $request)
    {
        $validator = Validator::make($request->all(), [
            'title' => 'required|unique:posts|max:255',
            'body' => 'required',
        ]);
 
        if ($validator->fails()) {
            return redirect('post/create')
                        ->withErrors($validator)
                        ->withInput();
        }
 
        // Retrieve the validated input...
        $validated = $validator->validated();
 
        // Retrieve a portion of the validated input...
        $validated = $validator->safe()->only(['name', 'email']);
        $validated = $validator->safe()->except(['name', 'email']);
 
        // Store the blog post...
    }
}

laravel validation

$this->validate([ // 1st array is field rules
  'userid' =>'required|min:3|max:100',
  'username' =>'required|min:3',
  'password' =>'required|max:15|confirmed',
], [ // 2nd array is the rules custom message
  'required' => 'The :attribute field is mandatory.'
], [ // 3rd array is the fields custom name
  'userid' => 'User ID'
]);

laravel validation

use IlluminateSupportFacadesValidator;


$customMessage = [
  'title.max' => "title is too large",
];
$rules = [
  'id' => 'integer|exists:master_advert_bundles',
  'title' => ['required', 'unique:posts', 'max:255'],
  'body' => ['required']
];
$validate = validation($request->all(), $rules);
$validate = Validator::make($request->all(), $rules, $customMessage);
if ($validate->fails()) {
  return  $validate->messages();
}

Laravel Validation

    $validated = $request->validate([
        'title' => 'required|unique:posts|max:255',
        'body' => 'required',
    ]);

validation laravel

/**
 * Store a new blog post.
 *
 * @param  IlluminateHttpRequest  $request
 * @return IlluminateHttpResponse
 */
public function store(Request $request)
{
    $validated = $request->validate([
        'title' => 'required|unique:posts|max:255',
        'body' => 'required',
    ]);
 
    // The blog post is valid...
}

laravel validation required if

use IlluminateSupportFacadesValidator;
use IlluminateValidationRule;
 
Validator::make($request->all(), [
    'role_id' => Rule::requiredIf($request->user()->is_admin),
]);
 
Validator::make($request->all(), [
    'role_id' => Rule::requiredIf(fn () => $request->user()->is_admin),
]);

Laravel validation

public function store(Request $request)
    {
        $validator = Validator::make($request->all(), [
            'title' => 'required|unique:posts|max:255',
            'body' => 'required',
        ]);
 
        if ($validator->fails()) {
            return redirect('post/create')
                        ->withErrors($validator)
                        ->withInput();
        }
 
        // Retrieve the validated input...
        $validated = $validator->validated();
 
        // Retrieve a portion of the validated input...
        $validated = $validator->safe()->only(['name', 'email']);
        $validated = $validator->safe()->except(['name', 'email']);
 
        // Store the blog post...
    }

laravel validation

use IlluminateValidationRule;

Validator::make($data, [
    'email' => [
        'required',
        Rule::unique('users')->ignore($user->id),
    ],
]);

laravel validation

/**
 * Bootstrap any application services.
 *
 * @return void
 */
public function boot()
{
    Validator::extend(...);

    Validator::replacer('foo', function ($message, $attribute, $rule, $parameters) {
        return str_replace(...);
    });
}

laravel validation

'foo.*.id' => 'distinct'

laravel form validation

php artisan make:controller ValidationController --plain

laravel validation

Validator::extendImplicit('foo', function ($attribute, $value, $parameters, $validator) {
    return $value == 'foo';
});

laravel validation

Rule::unique('users')->ignore($user->id, 'user_id')

laravel validation

Validator::extend('foo', 'FooValidator@validate');

validation.required laravel

9

If it has worked for you before then you should check if you have messages defined in the applangenvalidation.php or by chance you have changed the locale of the app and have not defined the messages for it. There are many possibilities.

laravel validation

Rule::unique('users')->ignore($user)

laravel validation

"foo" => "Your input was invalid!",

"accepted" => "The :attribute must be accepted.",

// The rest of the validation error messages...

laravel validation

$rules = ['name' => 'unique:users,name'];

$input = ['name' => ''];

Validator::make($input, $rules)->passes(); // true