restore composer.json, add mysqli extension

app/Models/PaymentSystemModel.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+use Illuminate\Support\Facades\App;
+
+/**
+ * @package App\Models
+ * @property int $id
+ * @property array $title
+ * @property string $slug
+ *
+ * @property PaymentSystemItem[]|HasMany $items
+ *
+ * @method getTitle(): string
+ */
+class PaymentSystemModel extends Model
+{
+    use HasFactory;
+
+    protected $fillable = ['title', 'slug'];
+
+    protected $casts = [
+        'title' => 'array',
+    ];
+
+    protected $table = 'payment_system_models';
+
+    public function items(): HasMany
+    {
+        return $this->hasMany(PaymentSystemItem::class, 'payment_system_id', 'id');
+    }
+
+    public function getTitle(): string
+    {
+        if (App::isLocale('ru')) {
+            return (string) $this->title['ru'];
+        }
+
+        return (string) $this->title['uz'];
+    }
+}