Laravel - Save multiple fields as array instead of row - php

Question

I have one to many relation tables. I want to insert child table data in array instead of rows.
Mobile.php
protected $fillable = ['mobile_id', 'mobile_name'];
public function models() {
return $this->hasMany(Model::class, 'mobile_id');
}
Model.php
protected $fillable = ['model_name', 'mobile_id'
];
public function model()
{
return $this->belongsTo(Mobile::class, 'mobile_id');
}
View
Mobile Name: <input type="text" name="mobile_name">
Models:
<input type="text" name="model_name[]">
<button class="add_model">Add Model</button>
Controller
public function create(Request $request, Mobile $mob){
$mob= new Mobile;
$mob->mobile_name = request('mobile_name');
for($i=0; $i < count(request('model_name')); $i++){
$models = new Model;
$models->model_name = request('model_name')[$i];
$mob->models()->save($models);
}
$mob->save();
}
It's creates a new row for each mobile models inserted. But I want those models inserted in a single column model_name in an array line.
I tried
for($i=0; $i < count(request('model_name')); $i++){
Size::create([
'model_name' => request('model_name')[$i],
'mobile_id' => $mob->id
]);
But it is also not working.

Answer 1

I think the problem is your schema table, because you need to achieve this first :
// Migrations
$table->json('model_name');
That way you can persist many model_name in one row using one array.

Answer 2

You should serialize the data before saving it in the database.Create the model instance outside the for loop.Here is the working code.
public function create(Request $request, Mobile $mob){
$mob= new Mobile;
$mob->mobile_name = $request('mobile_name');
$models = new Model;
$arr=[];
for($i=0; $i < count($request('model_name')); $i++){
array_push($arr, $request('model_name')[$i]);
}
serialize($arr);
$models->model_name =$arr;
$mob->models()->save($models);
$mob->save();
}
In the model.php, add the below code
protected $casts = [
'model_name ' => 'array',
]

Answer 3

Try this 100% working i have deployed .
foreach($request->model_name as $item => $value)
$data[$value]=array(
'mobile_name'=>$request->mobile_name,
'model_name'=>$value,
);
Mobile::insert($data); // Eloquent approach