restore composer.json, add mysqli extension

app/Models/Region.php

@@ -0,0 +1,49 @@
+<?php
+
+namespace App\Models;
+
+use App\Traits\LogOptionsTrait;
+use Illuminate\Support\Facades\App;
+use Illuminate\Database\Eloquent\Model;
+use Spatie\Activitylog\Traits\LogsActivity;
+
+class Region extends Model
+{
+    use LogsActivity, LogOptionsTrait;
+
+    protected $guarded = ['id'];
+
+    protected $casts = [
+        'name' => 'array',
+        'cash' => 'boolean'
+    ];
+
+    protected static $logName = 'regions';
+    protected static $logOnlyDirty = true;
+    protected static $logAttributes = ['name', 'cash'];
+    protected static $submitEmptyLogs = false;
+
+    /**
+     * @return \Illuminate\Database\Eloquent\Relations\HasMany
+     */
+    public function cities()
+    {
+        return $this->hasMany(City::class, 'region_id', 'id');
+    }
+
+    public function getName(): string
+    {
+        return (string) $this->name[App::getLocale()] ?? null;
+    }
+
+    public function deliveryPrice()
+    {
+        return $this->hasMany(DeliveryPrice::class, 'region_id', 'id');
+    }
+
+    public function getDeliveryPrice($powerId): ?float
+    {
+        $deliveryPrice = collect($this->deliveryPrice)->where('power_id', $powerId)->first();
+        return $deliveryPrice ? $deliveryPrice['price'] : null;
+    }
+}