Update method when adding an additional field

good afternoon,

I am running into an issue, which I can't solve myself. I have an application where I have form with flexible fields. If I create these then it all works fine. Using livewire I can add and remove fields. I already made great progress thanks to MichalOravec as well. But I proceed and in the end, i failed to proceed myself.

Now I run into the following, if I want to edit a field, then I can only edit the existing fields. If I add a field, then only the already existing fields are saved. Which makes sense given the code below. I have already looked if I could solve it with the fill() method but that did not work. Also workarounds with array_diffs or nested foreach, etc did not solve it.

So my question is, how can I make sure that the extra field is saved?

As a starter my ddd(), purely to show what the fields are I have 3 fields, but only Field1 and Field 2 are being saved. (Exists already in de database, corresponding the ID) But field 3 is not saved. Again which makes sense because of my code, but How can I solve this one?

array:7 [▼
  "_token" => "BmSdIF1Xldth6G8IvJnjfs0JkDnbM4ZR9owLyQ4l"
  "_method" => "PUT"
  "id" => "1"
  "name" => "Git Push"
  "description" => "Voor Git"
  "flow_id" => "1"
  "field" => array:3 [▼
    1 => "Field 1"
    16 => "Field 2"
    17 => "Field 3"
  ]
]

```


Controller:

```

    public function update(Request $request, $id)
    {
        $command = Command::findOrFail($id);

        $command->id =  $request->id;
        $command->name =  $request->name;
        $command->description =  $request->description;
        $command->flow_id =  $request->flow_id;


      foreach ($request->field as $id => $value) {
            $test = $command->fields()->where('id', $id)->update(['field' => $value]);
        }

       $command->save();

        return redirect('/admin/commands')->with('success', 'Command is successfully updated');
    }

Form

  <input type="text" name="field[]"
              class="px-4 py-2 border focus:ring-gray-500 focus:border-gray-900 w-full sm:text-sm border-gray-300 		 
 rounded-md focus:outline-none text-gray-600"
      placeholder="Field {{('Describe ' .$field)}}"> </div>

Command model

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;

class Command extends Model
{
    use HasFactory;

    protected $fillable = ['name', 'description', 'flow_id'];

    public function flow()
    {
       return $this->belongsTo(Flow::class);
    }

    public function fields()
    {
        return $this->hasMany(Fields::class);
    }
}

I hope someone can point me into the right direction.

Kr