Snapshot of main at 9f39a6e1e (2026-11-02)

app/Polls/Rules/RequiredWhenSelected.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace App\Polls\Rules;
+
+use Closure;
+use Illuminate\Contracts\Validation\DataAwareRule;
+use Illuminate\Contracts\Validation\ValidationRule;
+use Illuminate\Support\Arr;
+
+/**
+ * The field is required when the array at $listAttribute contains $key,
+ * e.g. the "Other" text when "Other" is one of the selected options.
+ */
+class RequiredWhenSelected implements ValidationRule, DataAwareRule
+{
+    /** Run even when the field is empty. */
+    public bool $implicit = true;
+
+    private array $data = [];
+
+    public function __construct(private string $listAttribute, private string $key)
+    {
+    }
+
+    public function setData(array $data): static
+    {
+        $this->data = $data;
+
+        return $this;
+    }
+
+    public function validate(string $attribute, mixed $value, Closure $fail): void
+    {
+        $selected = (array) Arr::get($this->data, $this->listAttribute, []);
+
+        if (in_array($this->key, $selected, true) && trim((string) $value) === '') {
+            $fail(__('validation.required', ['attribute' => __('Other')]));
+        }
+    }
+}