Laravel 8 – Model instance error - too few arguments to function __construct() - php

Question

I’m kind of new to Laravel and the whole API architecture, so my question may seem dumb at first.
My basic setup:
Laravel 8;
PHP 8;
routes\api.php
Route::post('/categories/',[ApiCategoriesInsertController::class, 'insertCategories'], function($insertCategoriesResults) {
return response()->json($insertCategoriesResults);
})->name('api.categories.insert');
\app\Http\Controllers\ApiCategoriesInsertController.php (created with php artisan make:controller)
<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Route;
// Custom models.
use App\Models\CategoriesInsert;
class ApiCategoriesInsertController extends Controller
{
private mixed $ciAPI;
public function __construct(Request $req)
{
}
public function insertCategories(Request $req): array
{
$this->ciAPI = new CategoriesInsert(['testing'=>'debug']);
return [‘status’ => ‘OK’];
}
}
\app\Models\CategoriesInsert.php (created with php artisan make:model)
<?php
namespace App\Models;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
class CategoriesInsert extends Model
{
use HasFactory;
public function __construct(array $objParameters)
{
}
}
When I make a post to http://localhost:8000/api/categories, Laravel logs the following error:
local.ERROR: Too few arguments to function App\Models\CategoriesInsert::__construct(), 0 passed in … Too few arguments to function App\\Models\\CategoriesInsert::__construct(), 0 passed in …
Anyone knows what’s wrong or missing in my architecture?
Thanks!

Answer 1

Make your model's constructor compatible with parent.
<?php
namespace App\Models;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
class CategoriesInsert extends Model
{
use HasFactory;
public function __construct(array $attributes = [])
{
parent::__construct($attributes);
}
}
Also, notice, that when you call new CategoriesInsert(['testing'=>'debug']), you do not save the data in your database. Use:
$insert = new CategoriesInsert(['testing'=>'debug']);
$insert->save();
Or:
CategoriesInsert::create(['testing'=>'debug']);

Answer 2

you don't need to pass data to model
change your code to bellow code:
public function insertCategories(Request $req): array
{
CategoriesInsert::create(['testing' => 'debug']);
return [‘status’ => ‘OK’];
}
key of passed array is your filed name in database, and value stored data
also you should define fillable parameter in model
protected $fillable = [
'title',
'slug',
'priority',
];