如何使用select 2（插件）手动和从数据库动态保存标签

Question

i can store tags from database, but when i try to input tags manually, i can't do that because the new tag not store in database.

here is what can i do so far

my controller to store data

 $data = $this->handleRequest($request);//for handle image request
 $newPost = $request->user()->posts()->create($data);
 $newPost->tags()->sync($request->tags, false);

my form

{!!Form::select('Tags',$tags->pluck('name','id')->all(),null,array(
                'multiple' => 'multiple',
                'class'    => 'form-control select2-multi',
                'name'     => 'tags[]'))
            !!}

and script

$('.select2-multi').select2({
tags: true,
tokenSeparators: [","]
}).
    val({!! json_encode($post->tags()->pluck('id')->toArray())!!}).trigger('change');