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

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">
<h6><b>{{($book->getName())}}</b></h6>
</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');

Answer 1

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

Answer 2

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;
}