OptionsTrait new method for add new options.

Author: pokurek

Datatable/OptionsTrait.php

@@ -76,6 +76,27 @@ public function set(array $options)
         return $this;
     }
 
+    /**
+     * Add options. Dont rewrite existing.
+     * 
+     * @param array $options
+     * 
+     * @return $this
+     */
+    public function add(array $options)
+    {
+        $resolver = new OptionsResolver();
+        $this->configureOptions($resolver);
+
+        $add = $resolver->resolve($options);
+        $add = array_intersect_key($add, $options);
+        
+        $this->options = array_merge($this->options, $add);
+        $this->callingSettersWithOptions($add);
+
+        return $this;
+    }
+
     /**
      * Option to JSON.
      */