How to insert this array of mySbjects in a database? - laravel

Question

I've been trying to insert this into the database and I don't have any idea how to store this information into the database... The relationship between user and grade is many-to-many and between grade and mySubject is One-to-many.
<div class="row">
#foreach($grades as $grade)
<div class="card shadow mx-2 my-4">
<div class="card-header py-3">
<h6 class="m-0 font-weight-bold">
<div class="custom-control custom-checkbox">
<input class="custom-control-input #error('grade') is-invalid #enderror" type="checkbox" id="{{$grade->id}}" name="grade[]" value="{{ $grade->id }}"/>
<label class="custom-control-label pt-1" for="{{$grade->id}}">{{$grade->name}}</label>
</div>
</h6>
</div>
<div class="card-body">
#foreach($grade->subjects as $subject)
<div class="custom-control custom-checkbox mb-2">
<input class="custom-control-input" type="checkbox" id="{{$grade->id}}{{$subject->id}}" name="mySubjects[{{$grade->id}}][]" value="{{ $subject->name }}"/>
<label class="custom-control-label" for="{{$grade->id}}{{$subject->id}}">
{{$subject->name}}
</label>
</div>
#endforeach
</div>
</div>
#endforeach
</div>
The store function
public function store(Request $request)
{
$user->grades()->sync($request->grade);
if($request->mySubjects){
//. . . .
}
}
}

Answer 1

Try below code:
public function store(Request $request)
{
$user->grades()->sync($request->grade);
if($request->mySubjects){
$mySubjects = $request-> mySubjects;
$data = [];
foreach($mySubjects as $subject){
array_push($data,
'your database field name'=> $subject,
'created_at' => now()->toDateTimeString(),
'updated_at' => now()->toDateTimeString(),
}
YourModelName::insert($data);
}
}
}