バリデーションをFormRequestで行う

app/Http/Requests/AdminInfoStoreRequest.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace App\Http\Requests;
+
+use App\Information;
+use Illuminate\Foundation\Http\FormRequest;
+use Illuminate\Validation\Rule;
+
+class AdminInfoStoreRequest extends FormRequest
+{
+    /**
+     * Determine if the user is authorized to make this request.
+     *
+     * @return bool
+     */
+    public function authorize()
+    {
+        return true;
+    }
+
+    /**
+     * Get the validation rules that apply to the request.
+     *
+     * @return array
+     */
+    public function rules()
+    {
+        return [
+            'category' => ['required', Rule::in(array_keys(Information::CATEGORIES))],
+            'pinned' => 'nullable|boolean',
+            'title' => 'required|string|max:255',
+            'content' => 'required|string|max:10000'
+        ];
+    }
+}