Laravel : how to create unique tag in tags model

问题

I want create tag for posts . I don't want tags repetitions to be saved,But it is stored repeated

public function store(Request $request)
{
    $data = $request->all();
    $post = Post::create($data);
    if ($post && $post instanceof Post) {
        $tags = $request->input('tags');
        foreach ($tags as $tag){
                $newTag = Tag::create(['name'=>$tag]);
                $tags[] = $newTag->id;
        }
            $post->tags()->sync($tags);
        return redirect()->back();
    }
}

How can it be done?

回答1:

updateOrCreate method will help check It will create data if it not exists and update in case it already in db

Tag::updateOrCreate(['name'=>$tag]);

来源：https://stackoverflow.com/questions/63661078/laravel-how-to-create-unique-tag-in-tags-model

标签

laravel