migrate template

app/Models/SiteSetting.php

@@ -0,0 +1,49 @@
+<?php
+
+namespace App\Models;
+
+use Database\Factories\SiteSettingFactory;
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Support\Collection;
+
+class SiteSetting extends Model
+{
+    /** @use HasFactory<SiteSettingFactory> */
+    use HasFactory;
+
+    protected $primaryKey = 'key';
+
+    public $incrementing = false;
+
+    protected $keyType = 'string';
+
+    protected $fillable = [
+        'key',
+        'value',
+    ];
+
+    /**
+     * Get a setting value by key.
+     */
+    public static function get(string $key, ?string $default = null): ?string
+    {
+        return static::find($key)?->value ?? $default;
+    }
+
+    /**
+     * Set a setting value by key.
+     */
+    public static function set(string $key, ?string $value): void
+    {
+        static::updateOrCreate(['key' => $key], ['value' => $value]);
+    }
+
+    /**
+     * Get all settings as a key-value collection.
+     */
+    public static function allAsCollection(): Collection
+    {
+        return static::pluck('value', 'key');
+    }
+}