Laravel Simultaneously input one to many in database - laravel

Question

I have a card, this card has tags. So a Card has many tags and a Tag belongsTo a Card.
A user fills a form. He gives both the information for the card aswell as the tags.
Now I need to give each tag the information 'card_id' so it can be connected.
Now is my problem that I don't know this 'card_id' yet because the database did not yet assign a id as they are both being created simultaneously.
My situation:
public function create(Request $request)
{
$this->validate($request,[
'function' => 'max:255',
'description' => 'max:255',
'rate' => 'max:255',
'location' => 'max:255'
]);
$card = new Card;
$card->user_id = Auth::id();;
$card->function = $request->function;
$card->description = $request->description;
$card->rate = $request->rate;
$card->location = $request->location;
// I also tried this: $card->tag()->saveMany($tagsArray); (Did not work)
$card->save();
$tagsArray = explode(',', $request->tagsarray);
foreach($tagsArray as $tagInput) {
$tag = new Tag;
$tag->card_id = 'Cant know this yet :(';
$tag->tag = $tagInput;
$tag->save();
}
return redirect('/page');
}
Does someone know how to go about this?

Answer 1

You may try something like this:
$card = new Card([
'card_name' => request()->get('card_name'),
'something_else' => request()->get('something_else')
]);
if($card->save()) {
$tags = [];
// Get the tag information from request
$tagsFromRequest[
['tag_title' => 'A Tag', 'tag_slug' => 'a_tag'],
['tag_title' => 'Another Tag', 'tag_slug' => 'another_tag']
];
foreach($tagsFromRequest as $tag) {
$tags[] = new Tag($tag);
}
$card->tags()->saveMany($tags);
}
Now, prepare your tags from request where each tag item should be an array as given above and I can't be more specific because you gave nothing that you've tried and which might help me to understand your scenario. Check the documentation.