Fixed command set and added $this context when setting disable position

Author: pionl

src/Commands/RecalculatePositionCommand.php

@@ -65,7 +65,7 @@ public function handle()
             /** @var PositionTrait|Model $model */
             foreach ($collection as $model) {
                 // Prevent the move action and force the position we set
-                $model->disablePositionUpdate = true;
+                $model->setDisablePositionUpdateAttribute(true);
 
                 // Builds the group key to get position
                 $groupKey = $this->buildGroupKeyForPosition($model, $groups);

src/Traits/BasePositionTrait.php

@@ -128,20 +128,26 @@ protected function resetPositionOptionCache()
      * Enables setting disablePositionUpdate option in runtime
      *
      * @param boolean $value
+     *
+     * @return $this
      */
     public function setDisablePositionUpdateAttribute($value)
     {
         $this->optionCache['disablePositionUpdate'] = $value;
+        return $this;
     }
 
     /**
      * Enables setting positionColumn option in runtime
      *
      * @param string $value
+     *
+     * @return $this
      */
     public function setPositionColumnAttribute($value)
     {
         $this->optionCache['positionColumn'] = $value;
+        return $this;
     }
     //endregion
 }