first upload all files

Modules/Category/Http/Requests/SaveCategoryRequest.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace Modules\Category\Http\Requests;
+
+use Illuminate\Validation\Rule;
+use Modules\Category\Entities\Category;
+use Modules\Core\Http\Requests\Request;
+
+class SaveCategoryRequest extends Request
+{
+    /**
+     * Available attributes.
+     *
+     * @var string
+     */
+    protected $availableAttributes = 'category::attributes';
+
+    /**
+     * Get the validation rules that apply to the request.
+     *
+     * @return array
+     */
+    public function rules()
+    {
+        return [
+            'name' => 'required',
+            'slug' => $this->getSlugRules(),
+            'is_active' => 'required|boolean',
+            'is_active' => 'required|boolean',
+        ];
+    }
+
+    private function getSlugRules()
+    {
+        $rules = $this->route()->getName() === 'admin.categories.update'
+            ? ['required']
+            : ['nullable'];
+
+        $slug = Category::withoutGlobalScope('active')->where('id', $this->id)->value('slug');
+
+        $rules[] = Rule::unique('categories', 'slug')->ignore($slug, 'slug');
+
+        return $rules;
+    }
+}