Creating a item with multiple relations in 1 call - laravel

Question

So I have a project table:
Schema::create('projects', function (Blueprint $table) {
$table->increments('id');
$table->integer('user_id');
$table->string('name');
$table->string('reference')->nullable();
$table->date('started')->nullable();
$table->date('ended')->nullable();
$table->string('industry')->nullable();
$table->string('operatives')->nullable();
$table->timestamps();
$table->softDeletes();
});
And I have an hours table:
Schema::create('hours', function (Blueprint $table) {
$table->increments('id');
$table->string('hours');
$table->date('date')->nullable();
$table->text('notes')->nullable();
$table->integer('project_id');
$table->integer('user_id');
$table->softDeletes();
$table->timestamps();
});
Now, is there anyway to create an association with both the project_id and user_id in one call?
I know I can do the following (adding the user_id to the hours):
$hours = [
'hours' => $request->hours,
'date' => $request->date,
'operatives' => $request->operatives,
'notes' => $request->notes,
'user_id' => auth()->user()->id,
];
$create = $project->hours()->save(new $this->hour($hours));
But I am trying to do something like so:
$hours = [
'hours' => $request->hours,
'date' => $request->date,
'operatives' => $request->operatives,
'notes' => $request->notes,
];
$create = $project->hours()->save(auth()->user()->save($hours));
Both user and project have the same hours relation in their classes:
/**
* #return \Illuminate\Database\Eloquent\Relations\HasMany
*/
public function hours(): HasMany
{
return $this->hasMany(Hour::class);
}
Is this possible, if so, how would I go about doing it?

Answer 1

I think the best way to handle this would be to separate the saving of Hours as an independent instance of the model and then sync it with both like so:
$hour = Hour::create($hours);
$project->hours()->syncWithoutDetaching([$hour->id]);
$user->hours()->syncWithoutDetaching([$hour->id]);