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| getting_started_with_laravel [03.12.2020 15:38] – [Tricks] Pascal Suter | getting_started_with_laravel [03.12.2020 16:10] – [Form validation] Pascal Suter |
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| <code php> | <code php> |
| public function store(Request $request){ | public function store(Request $request){ |
| $validateData = $request->validate([ | $validData = $request->validate([ |
| 'name' => ['required', 'string', 'max:255'], | 'name' => ['required', 'string', 'max:255'], |
| 'email' => ['required', 'string', 'email', 'max:255', 'unique:users'], | 'email' => ['required', 'string', 'email', 'max:255', 'unique:users'], |
| } | } |
| </code> | </code> |
| | there are many [[https://laravel.com/docs/8.x/validation#available-validation-rules|validation rules]] available already in Laravel and custom rules can be added if needed. |
| | |
| | also note, that the ''$validData'' variable now contains an array with the validated data in a format that is compatible with the ''create'' methods for the laravel models. So if you set up your model's ''$fillable'' property correctly and your form field names correspond to your database field names, you can pass this array straight to the ''create()'' method of your model and create a new database entry like that! |
| |
| now here are a few cool things about the validator: | now here are a few cool things about the validator: |
| * in addition to bringing the user back to the form, laravel will provide an ''$error'' variable which can be used in the balde | * in addition to bringing the user back to the form, laravel will provide an ''$error'' variable which can be used in the balde |
| * even better, there is a ''@error(fieldname)'' blade syntax which will do whatever follows after it if the specified field is invalid | * even better, there is a ''@error(fieldname)'' blade syntax which will do whatever follows after it if the specified field is invalid |
| | * you also get a ''old(fieldname)'' function which you can use to populate your input fields with the original inputs, so the user won't have to enter eveything again.. see the eample below. |
| here's an example part of a blade with a form that will show some info if the validation fails: | here's an example part of a (bootstrap based) blade with a form that will show some info if the validation fails: |
| |
| <code html> | <code html> |
| <div class="form-group col-12"> | <div class="form-group col-12"> |
| <label for="inputName">Name</label> | <label for="inputName">Name</label> |
| <input type="text" class="form-control @error('name') is-invalid @enderror" id="inputName" name="name"> | <input type="text" class="form-control @error('name') is-invalid @enderror" id="inputName" name="name" value="{{ old('name') }}"> |
| <div class="invalid-feedback">Please enter your name here</div> | <div class="invalid-feedback">Please enter your name here</div> |
| </div> | </div> |
| @extends('layouts.mylaout', [ 'title' => "Details for ".$section->name, 'image' => 'section_details.jpg' ]) | @extends('layouts.mylaout', [ 'title' => "Details for ".$section->name, 'image' => 'section_details.jpg' ]) |
| </code> | </code> |
| and in the layout you would then simply use ''{{ $title }}'' to echo the title you passed along. | and in the layout you would then simply use <code>{{ $title }}</code> to echo the title you passed along. |
| |
| === 2.) create a mini-section === | === 2.) create a mini-section === |