restore composer.json, add mysqli extension

app/Models/Role.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace App\Models;
+
+use App\Traits\LogOptionsTrait;
+use Illuminate\Database\Eloquent\Model;
+use Spatie\Activitylog\Traits\LogsActivity;
+
+class Role extends Model
+{
+    use LogsActivity, LogOptionsTrait;
+
+    protected $fillable = [
+        'name',
+        'permissions'
+    ];
+
+    protected $casts = [
+        'permissions' => 'array'
+    ];
+
+    protected static $logName = 'roles';
+    protected static $logOnlyDirty = true;
+    protected static $logAttributes = ['name', 'permissions'];
+    protected static $submitEmptyLogs = false;
+
+    public function staff()
+    {
+        return $this->hasOne(Staff::class, 'role_id', 'id');
+    }
+
+    public function hasPermission($type, $permissions): bool
+    {
+        return $this->permissions[$type][$permissions] ?? false;
+    }
+}