How to send variable from blade to controller without changing the url

Question

In blade I have a list of books. I want to choose a specific book to show its information. And to do so I want to send with href the id of the book to my controller passing through route.

For example i have

 <div class="body text-center">
 <a href="{{HERE!}}"><h6><b>{{($book->getName())}}</b></h6></a>
 </div>

In href I want to add $bookId = $book->id and the route name so I can call the route with the specific name which calls a method in a controller which can use the variable $bookId

 Route::get('/infromation','Books\BookController@index')->name('info');

I'm not sure to get what you want. You don't want to change the URL but you want to add the ID. (Perhaps a POST request?). Does the route should return the `index` as well? — Clément Baconnier, Jan 12 '20 at 15:00
url: /books -> where all books are shown I select one of the books and I want the shown url to become: /{book-name}/info or just /info and also i want to send the selected book's id to the controller Bookcontroller. — InFo55, Jan 12 '20 at 15:12
If you want the book name in the URL is recommended you to have a [slug](https://github.com/spatie/laravel-sluggable) Is that acceptable for you? — Clément Baconnier, Jan 12 '20 at 15:14
Also, I don't recommend URL like `/info` without using `id` or `slug` because, in my opinion, it provide a bad user experience when trying to access the resource. — Clément Baconnier, Jan 12 '20 at 15:16

Hitesh Kumar · Answer 1 · 2020-01-12T15:21:29.890

0

You can try like this

    <form action="/BookName/information/<?php echo $book->id; ?>" method="post">
      <div class="body text-center">
       <input type="hidden" name="book_id" value="{{ $book->id }}">
       <a href="/information/<?php echo $book->id; ?>">
          <button type="submit" name="book_information" class="btn btn-primary"> 
            <h6>
              <b>{{($book->getName())}}</b> 
            </h6>
         </button>
     </div>

   </form> 

    // make route like this
    Route::post('/BookName/information/{id}','Books\BookController@index');

    // Access the that id in controller
    public function index(Request $request)
    {
        echo $request->book_id;
    }

edited Jan 12 '20 at 15:21

answered Jan 12 '20 at 14:46

Hitesh Kumar

383
2
6

Okay but I don't want to show the id on the url is it possible to send the id and keeping the url '/information' or sending the id and changing the url to '/bookName/information'? – InFo55 Jan 12 '20 at 15:01
I update my answer as per what you say, so please check – Hitesh Kumar Jan 12 '20 at 15:23

Clément Baconnier · Accepted Answer · 2020-01-13T10:10:49.757

Here's two propositions:

The first one is to use spatie/laravel-sluggable to have the book name in the URL
The second one is to access the book without changing the URL with a POST request

Using spatie/laravel-sluggable

The slug will be generated automatically from name when the book is created.

your-migration.php

 Schema::create('books', function (Blueprint $table) {
    $table->bigIncrements('id');
    $table->string('slug')->unique()->index();
    $table->string('name');
    // ...
    $table->timestamps();
});

web.php

// Change the URIs as you want. `{book}` is mandatory to retrieve the book though.
Route::get('/books','Books\BookController@index')->name('book.index');
Route::get('/books/{book}','Books\BookController@show')->name('book.show');

Book.php

use Spatie\Sluggable\HasSlug;
use Spatie\Sluggable\SlugOptions;

class Book extends Model
{
    use HasSlug;

    protected $guarded = [];

    public function getSlugOptions()
    {
        // Adapt with what you want
        return SlugOptions::create()
            ->generateSlugsFrom('name')
            ->saveSlugsTo('slug')
            ->doNotGenerateSlugsOnUpdate();
    }

    public function getRouteKeyName()
    {
        return 'slug';
    }

}

BookController.php

class BookController extends Controller
{
    public function index()
    {
        return view('book.index');
    }

    public function show(Book $book)
    {
        // $book is retrieving using Model Binding: https://laravel.com/docs/5.8/routing#route-model-binding 
        return view('book.show', compact('book'));
    }
}

index.blade.php

<div class="body text-center">
    <a href="{{ route('book.show', $book) }}">
        <h6><b>{{ $book->getName() }}</b></h6>
    </a>
</div>

Using POST request (URI does not change) and without SLUG

I wouldn't recommend using this for the user experience.

The user cannot bookmark the book or share the link with someone else
When refreshing the page, it will prompt to the user if he want to re-submit the form request

web.php

Route::get('/books','Books\BookController@index')->name('book.index');
Route::post('/books','Books\BookController@show')->name('book.show');

BookController.php

class BookController extends Controller
{
    public function index()
    {
        return view('book.index');
    }

    public function show()
    {
        $book = Book::findOrFail(request('book_id'));
        return view('book.show', compact('book'));
    }
}

index.blade.php

<div class="body text-center">
    <form action="{{ route('book.show') }}" method="POST">
        @csrf
        <input type="hidden" value="{{ $book->id }}" name="book_id">
        <h6>
            <button type="submit"> 
                <b>{{ $book->getName() }}</b>
            </button>
        </h6>
    </form>
</div>

You can remove the default button style to make it looks like a link https://stackoverflow.com/a/45890842/8068675

How to send variable from blade to controller without changing the url

2 Answers2