Updating a one to many relationship without the use of implode laravel - php

Question

I am trying to update my data into my database where the relationship is that I have many schools, so when I try to save inside my database, I want to get something like this:
[![enter image description here][1]][1]
But I only know how to use implode function to do it, and I can only make it like this:
I tried doing this but it doesn't work:
public function update1(Request $request, $user_id){
$rows = qualification::where('user_id', $user_id)->get();
foreach ($rows as $row){
switch ($row['meta_key']){
case 'school_name':
$row['meta_value'] = $request->input('School');
break;
case 'start_date':
$row['meta_value'] = $request->input('SDate');
break;
case 'end_date':
$row['meta_value'] = $request->input('EDate');
break;
case 'qualification_list':
$row['meta_value'] = $request->input('qualification');
break;
}
$row->save();
}
return redirect('/home');
}
When I try using that code it will give me this error, Array to string conversion
PersonalInfo model:
class PersonalInfo extends Eloquent
{
use SoftDeletes;
protected $table = 'personal_infos';
protected $primaryKey = 'id';
protected $dates = ['deleted_at'];
public function userQualifications()
{
return $this->hasMany('App\Qualification','user_id');
}
Qualification model:
class Qualification extends Model
{
protected $table = "qualifications";
public function PersonalInfos() {
return $this->belongsTo('App\PersonalInfo');
}
}
No error message:

Answer 1

Assuming you have your relationship setup properly in your User model, you could try something like this (not tested):
public function update1(Request $request, $user_id){
// get the user
$user = PersonalInfo::find($user_id);
// create the new array of meta data
$data = array();
// loop through the inputs array count
for($i=0; $i < count($request->input('School')); $i++) {
$data[] = [
'meta_key' => 'school_name',
'meta_value' => $request->input('School')[$i]
];
$data[] = [
'meta_key' => 'start_date',
'meta_value' => $request->input('SDate')[$i]
];
$data[] = [
'meta_key' => 'end_date',
'meta_value' => $request->input('EDate')[$i]
];
$data[] = [
'meta_key' => 'qualification_list',
'meta_value' => $request->input('qualification')[$i]
];
}
// create the relationships
$user->userQualifications()->createMany($data);
return redirect('/home');
}