Create record with unique slug in laravel

• Create post with unique slug in laravel 8

  app\Http\Controllers\HomeController.php

  Import class after the namespace and before the class definition

  use Illuminate\Support\Str;
  use App\Models\Post;
  

  Controller's method

  public function createSlug($title, $table , $id = 0)
  {
      // Normalize the title and create slug
      $slug = Str::slug($title);
      // Get any that could possibly be related.
      // This cuts the queries down by doing it once.
      $allSlugs = $this->getRelatedSlugs($slug, $table, $id);
      // If we haven't used it before then we are all good.
      if (! $allSlugs->contains('slug', $slug)){
          return $slug;
      }
      // Just append numbers like a savage until we find it is not used.
      for ($i = 1; $i <= 10; $i++) {
          $newSlug = $slug.'-'.$i;
          if (! $allSlugs->contains('slug', $newSlug)) {
              return $newSlug;
          }
      }
      throw new \Exception('Can not create a unique slug');
  }
  
  //Function to get all the records which has same slug 
  public function getRelatedSlugs($slug, $table, $id = 0)
  {
      return  DB::table($table)->select('slug')->where('slug', 'like',  $slug.'%')
          ->where('id', '<>', $id)
          ->get();
  }
  
  public function createPost(){
      $title = 'Nisi iure id ut molestiae quae';
      $slug = $this->createSlug($title, 'posts');
      $post = Post::create(
          ['title' => $title, 'slug' => $slug]
      );
      echo $post;
  }
  

  //routes\web.php
  use App\Http\Controllers\HomeController;
  Route::get('/create-post', [HomeController::class, 'createPost']);
  

  Output : 

  {"title":"Nisi iure id ut molestiae quae","slug":"nisi-iure-id-ut-molestiae-quae","updated_at":"2021-09-16T04:43:04.000000Z",
  "created_at":"2021-09-16T04:43:04.000000Z","id":1}

  You have to create a posts table with a title and slug column. Create the post model with fillable attributes and add title and slug to this fillable attribute. You have to pass the post title and table name to createSlug() method to create the unique slug by appending 1, 2, 3, …  if the slug already exists with the same value in the table.

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