/**
  * Run the database seeds.
  *
  * @return void
  */
 public function run()
 {
     /* $shuffle = function($tags, $num)
             {
                 $s=[];
                 while($num>0)
                 {
                     $s[] = $tags[$num];
                     $num--;
                 }
     
                 return $s;
             };
     
             $max = $this->tag->count();
             $tags = $this->tag->lists('id');
     
             factory(App\Product::class, 15)->create()->each(function ($product) use ($max, $tags, $shuffle)
             {
                $product->tags()->attach($shuffle($tags, rand(1, $max - 1)));
     
             }); */
     factory(App\Product::class, 15)->create()->each(function ($product) {
         $nrb_insert = rand(1, 4);
         $tab_result = array();
         $nbr_tags = App\Tag::count();
         $tab_result = array();
         while ($nrb_insert != 0) {
             $candidat = rand(1, $nbr_tags);
             $test = array_search($candidat, $tab_result);
             if (!is_int($test)) {
                 array_push($tab_result, $candidat);
             }
             $nrb_insert--;
         }
         foreach ($tab_result as $value) {
             $product->tags()->attach($value);
         }
     });
 }