modify: 1. add permission tree 2. can be used as menu

migrations/2015_01_26_115212_create_permissions_table.php

@@ -18,6 +18,8 @@ public function up()
             $table->string('slug')->unique();
             $table->string('description')->nullable();
             $table->string('model')->nullable();
+            $table->enum('is_show', [1, 0])->default(0)->comment('determine this permission is show when it is used as menu');
+            $table->integer('parent_id')->default(0)->change();
             $table->timestamps();
         });
     }

src/Models/Permission.php

@@ -16,7 +16,7 @@ class Permission extends Model implements PermissionHasRelationsContract
      *
      * @var array
      */
-    protected $fillable = ['name', 'slug', 'description', 'model'];
+    protected $fillable = ['name', 'slug', 'description', 'model', 'parent_id', 'is_show'];
 
     /**
      * Create a new model instance.

src/Traits/HasRoleAndPermission.php

@@ -282,6 +282,8 @@ public function hasAllPermissions($permission)
     public function checkPermission($permission)
     {
         return $this->getPermissions()->contains(function ($value) use ($permission) {
+            // it always true when 0 compare string (Str::is function)
+            $permission = is_numeric($permission) ? (string)$permission : $permission;
             return $permission == $value->id || Str::is($permission, $value->slug);
         });
     }