创建模型验证器，验证数据正确性

app/common/validate/OperationNotice.php

@@ -0,0 +1,41 @@
+<?php
+
+declare(strict_types=1);
+
+namespace app\common\validate;
+
+use think\Validate;
+
+class OperationNotice extends Validate
+{
+    protected $failException = true;
+
+    protected $rule = [
+        'title' => 'require|max:255',
+        'notice_type' => 'require|in:0,1',
+        'status' => 'require|in:0,1',
+        'publish_at' => 'require|checkPublishAt',
+    ];
+
+    protected $scene = [
+        'add' => ['title', 'notice_type', 'status', 'publish_at'],
+        'edit' => ['title', 'notice_type', 'status', 'publish_at'],
+    ];
+
+    protected function checkPublishAt($value): bool
+    {
+        if (is_int($value)) {
+            return $value >= 0;
+        }
+        if (is_string($value)) {
+            if ($value === '') {
+                return false;
+            }
+            if (ctype_digit($value)) {
+                return true;
+            }
+            return strtotime($value) !== false;
+        }
+        return false;
+    }
+}