From 1294620cc94b92a62e92745d004887ef0a49b69d Mon Sep 17 00:00:00 2001
From: Romain 'Maz' BILLOIR <romainmazb@gmail.com>
Date: Mon, 5 Sep 2022 14:55:08 +0200
Subject: [PATCH 1/2] Add support for category filtering in Categories
 component

Fix #26
---
 components/Categories.php | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/components/Categories.php b/components/Categories.php
index c74de38..00d9795 100644
--- a/components/Categories.php
+++ b/components/Categories.php
@@ -53,6 +53,12 @@ public function defineProperties()
                 'default'     => 'blog/category',
                 'group'       => 'winter.blog::lang.settings.group_links',
             ],
+            'categoryFilter' => [
+                'title'       => 'winter.blog::lang.settings.posts_filter',
+                'description' => 'winter.blog::lang.settings.posts_filter_description',
+                'default'     => '{{ :slug }}',
+                'type'        => 'string',
+            ],
         ];
     }
 
@@ -74,7 +80,20 @@ public function onRun()
      */
     protected function loadCategories()
     {
-        $categories = BlogCategory::with('posts_count')->getNested();
+        $categoriesQuery = BlogCategory::with('posts_count');
+
+        if ($slug = $this->property('categoryFilter')) {
+            if ((new BlogCategory)->isClassExtendedWith('Winter.Translate.Behaviors.TranslatableModel')) {
+                $categoriesQuery->transWhere('slug', $slug);
+            } else {
+                $categoriesQuery->where('slug', $slug);
+            }
+
+            $categories = $categoriesQuery->first()->getChildren();
+        } else {
+            $categories = $categoriesQuery->getNested(false);
+        }
+
         if (!$this->property('displayEmpty')) {
             $iterator = function ($categories) use (&$iterator) {
                 return $categories->reject(function ($category) use (&$iterator) {

From 733b150470686a26f05b569817459b50af337a62 Mon Sep 17 00:00:00 2001
From: Romain 'Maz' BILLOIR <contact@maz.digital>
Date: Mon, 5 Sep 2022 14:59:20 +0200
Subject: [PATCH 2/2] Remove useless parameter

---
 components/Categories.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/components/Categories.php b/components/Categories.php
index 00d9795..12ec991 100644
--- a/components/Categories.php
+++ b/components/Categories.php
@@ -91,7 +91,7 @@ protected function loadCategories()
 
             $categories = $categoriesQuery->first()->getChildren();
         } else {
-            $categories = $categoriesQuery->getNested(false);
+            $categories = $categoriesQuery->getNested();
         }
 
         if (!$this->property('displayEmpty')) {