How to create a unique slug or unique url in Laravel From title - Laravel Easy Tutorials

Question:

How to create a unique slug or unique url in Laravel From title?

Solution:

Suppose I've a Model Product and tables products. In that table, there is a slug and When I'll insert any product by product title, then I'll make a unique slug by using that title.


At first We know that how to create a slug in laravel. That's

str_slug($title, $separator="-");

If I've requested a title, then from that title I can make a slug by this -

public function store(Request $request)
    {
       $title = $request->title;
       $slug = str_slug($title, "-");
       //Rest of the works...
    }

But,
If we create a slug by this that's never be unique. Unique means -

1. Add another same level title can create another slug. Like first title = 'my-title' and again I've a post titled by 'my-title' , then if I store it needs to store it like my-title-1 or my-title-2

We'll now create a slug that'll be totally unique.

Let's Start:

Create our own function that generate unique slug from any title. Look at the code and that is pretty much clear.

Full ProductController Class

<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;

use App\Product;

class ProductController extends Controller
{

    public function store(Request $request)
    {
        $product = new Product;
        $product->title = $request->title;

        //Make a unique product slug
        $product->slug = $this->createSlug($request->title);

        $product->save();
        return redirect('/');
    }


    //For Generating Unique Slug Our Custom function
    public function createSlug($title, $id = 0)
    {
        // Normalize the title
        $slug = str_slug($title);
        // Get any that could possibly be related.
        // This cuts the queries down by doing it once.
        $allSlugs = $this->getRelatedSlugs($slug, $id);
        // If we haven't used it before then we are all good.
        if (! $allSlugs->contains('slug', $slug)){
            return $slug;
        }
        // Just append numbers like a savage until we find not used.
        for ($i = 1; $i <= 10; $i++) {
            $newSlug = $slug.'-'.$i;
            if (! $allSlugs->contains('slug', $newSlug)) {
                return $newSlug;
            }
        }
        throw new \Exception('Can not create a unique slug');
    }

    protected function getRelatedSlugs($slug, $id = 0)
    {
        return Product::select('slug')->where('slug', 'like', $slug.'%')
        ->where('id', '<>', $id)
        ->get();
    }
}

That's it. We've created an Unique slug in Laravel.
So, If we give

1. first title = 'Our Product' Then slug will be our our-product
2. second title = 'Our Product' Then slug will be our-product-1
3. third title = 'Our Product' Then slug will be our-product-2

So, the URL or Slug now is totally Unique. That's the system to create a unique slug in Laravel.

Tags:

How to create a unique slug or unique url in Laravel From title, Laravel create slug, Laravel create URL, How to create a unique slug in Laravel. Laravel Unique URL