Add BooleanDateAttribute class

Author: sebastiaanluca

src/BooleanDateAttribute.php

@@ -0,0 +1,30 @@
+<?php
+
+declare(strict_types=1);
+
+namespace SebastiaanLuca\BooleanDates;
+
+use Carbon\CarbonImmutable;
+use Illuminate\Database\Eloquent\Casts\Attribute;
+
+class BooleanDateAttribute extends Attribute
+{
+    public static function for(string $column): static
+    {
+        return parent::make(
+            get: static fn (?string $value, array $attributes): bool => $attributes[$column] !== null,
+            set: static fn (bool $value, array $attributes): array => static::setBooleanDate($value, $attributes, $column),
+        );
+    }
+
+    private static function setBooleanDate(bool $value, array $attributes, string $column): array
+    {
+        // Only update the field if it's never been set before or when it's being "disabled"
+
+        if ($value === false || ! array_key_exists($column, $attributes) || $attributes[$column] === null) {
+            return [$column => $value === false ? null : CarbonImmutable::now()];
+        }
+
+        return [];
+    }
+}