Tax excpetion texts

app/Enumerations/TaxExemptionReason.php

@@ -14,12 +14,14 @@ use App\Scopes\CommonModel;
  * @property string $name
  * @property string $invoice_text
  * @property bool $requires_note
+ * @property int $sort_order
  */
 class TaxExemptionReason extends CommonModel
 {
-    public const string SMALL_BUSINESS = 'small_business';
-    public const string EDUCATION = 'education';
-    public const string YOUTH_WELFARE = 'youth_welfare';
+    public const string USTG_19 = 'ustg_19';
+    public const string USTG_4_24 = 'ustg_4_24';
+    public const string USTG_4_25A = 'ustg_4_25a';
+    public const string USTG_4_22A = 'ustg_4_22a';
     public const string CUSTOM = 'custom';
 
     protected $table = 'tax_exemption_reasons';
@@ -32,10 +34,12 @@ class TaxExemptionReason extends CommonModel
         'name',
         'invoice_text',
         'requires_note',
+        'sort_order',
     ];
 
     protected $casts = [
         'requires_note' => 'boolean',
+        'sort_order' => 'integer',
     ];
 
     /**
@@ -55,7 +59,7 @@ class TaxExemptionReason extends CommonModel
      */
     public static function options(): array
     {
-        return self::all()
+        return self::orderBy('sort_order')->get()
             ->map(static fn (self $reason): array => [
                 'value' => $reason->slug,
                 'label' => $reason->name,