taktik - laravel

app/Services/Post/CachedPostService.php

@@ -0,0 +1,75 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Services\Post;
+
+use App\Models\Post;
+use App\Services\CacheKeyBuilder;
+use App\Services\PaginableResource;
+use App\Services\QueryRequestModifiers\Post\PostFilter;
+use App\Services\QueryRequestModifiers\Post\PostFilterDTO;
+use App\Services\QueryRequestModifiers\Post\PostOrder;
+use App\Services\QueryRequestModifiers\Post\PostOrderDTO;
+use Illuminate\Support\Facades\Cache;
+
+class CachedPostService extends PostService
+{
+    public function __construct(
+        PostFilter $postFilter,
+        PostOrder $postOrder,
+        protected readonly CacheKeyBuilder $cacheKeyBuilder,
+        protected readonly int $cacheTtl = 60,
+    ) {
+        parent::__construct($postFilter, $postOrder);
+    }
+
+    public function fetchPosts(int $page, ?PostFilterDTO $filters, ?PostOrderDTO $orderDef): PaginableResource
+    {
+        return Cache::tags(['posts', 'fetch-posts', 'post-page-' . $page])
+            ->remember(
+                $this->cacheKeyBuilder->buildCacheKeyFromArgs('post-page', $page, $filters, $orderDef),
+                $this->cacheTtl,
+                function () use ($page, $filters, $orderDef) {
+                    return parent::fetchPosts($page, $filters, $orderDef);
+                }
+            );
+    }
+
+    public function findPost(int $id): ?Post
+    {
+        return Cache::tags(['posts', 'find-post-' . $id])
+            ->remember('post-' . $id, $this->cacheTtl, function () use ($id) {
+                return parent::findPost($id);
+            });
+    }
+
+    public function storePost(array $data): Post
+    {
+        $newPost = parent::storePost($data);
+
+        Cache::tags('fetch-posts')->flush();
+
+        return $newPost;
+    }
+
+    public function updatePost(array $data, int $id): ?Post
+    {
+        $updatedPost = parent::updatePost($data, $id);
+
+        if ($updatedPost !== null) {
+            Cache::tags('fetch-posts')->flush();
+            Cache::tags('find-post-' . $id)->flush();
+        }
+
+        return $updatedPost;
+    }
+
+    public function deletePost(int $id): bool
+    {
+        Cache::tags('fetch-posts')->flush();
+        Cache::tags('find-post-' . $id)->flush();
+
+        return parent::deletePost($id); // TODO: Change the autogenerated stub
+    }
+}

app/Services/Post/PostService.php

@@ -0,0 +1,106 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Services\Post;
+
+use App\Models\Post;
+use App\Models\Tag;
+use App\Services\PaginableResource;
+use App\Services\QueryRequestModifiers\Post\PostFilter;
+use App\Services\QueryRequestModifiers\Post\PostFilterDTO;
+use App\Services\QueryRequestModifiers\Post\PostOrder;
+use App\Services\QueryRequestModifiers\Post\PostOrderDTO;
+use Illuminate\Support\Facades\DB;
+
+class PostService implements PostServiceInterface
+{
+    public function __construct(
+        protected readonly PostFilter $postFilter,
+        protected readonly PostOrder $postOrder,
+        protected readonly int $paginate = 10,
+    ) {
+    }
+
+    public function fetchPosts(int $page, ?PostFilterDTO $filters, ?PostOrderDTO $orderDef): PaginableResource
+    {
+        $posts = $this->postOrder->apply(
+            $this->postFilter->apply(Post::with(['category', 'tags', 'comments']), $filters),
+            $orderDef
+        )->paginate($this->paginate, page: $page);
+        return PaginableResource::createFromLengthAwarePaginator($posts);
+    }
+
+    public function findPost(int $id): ?Post
+    {
+        return Post::with(['category', 'tags', 'comments'])->find($id);
+    }
+
+    public function storePost(array $data): Post
+    {
+        DB::beginTransaction();
+
+        $post = Post::create($data);
+
+        if (isset($data['tags'])) {
+            $tags = [];
+
+            foreach ($data['tags'] as $tag) {
+                $tag = Tag::firstOrCreate(['name' => $tag]);
+                $tags[] = $tag;
+            }
+
+            $post->tags()->sync($tags);
+        }
+
+        $post = $this->findPost($post->id);
+
+        if ($post === null) {
+            throw new \InvalidArgumentException('This should never happen - post is null');
+        }
+
+        DB::commit();
+
+        return $post;
+    }
+
+    public function updatePost(array $data, int $id): ?Post
+    {
+        DB::beginTransaction();
+
+        $post = Post::find($id);
+
+        if ($post === null) {
+            return null;
+        }
+
+        if (isset($data['tags'])) {
+            $tags = [];
+
+            foreach ($data['tags'] as $tag) {
+                $tag = Tag::firstOrCreate(['name' => $tag]);
+                $tags[] = $tag;
+            }
+
+            $post->tags()->sync($tags);
+        }
+
+        $post->update($data);
+
+        DB::commit();
+
+        return $this->findPost($post->id);
+    }
+
+    public function deletePost(int $id): bool
+    {
+        $post = Post::find($id);
+
+        if ($post === null) {
+            return false;
+        }
+
+        $post->delete();
+        return true;
+    }
+}

app/Services/Post/PostServiceInterface.php

@@ -0,0 +1,33 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Services\Post;
+
+use App\Models\Post;
+use App\Services\PaginableResource;
+use App\Services\QueryRequestModifiers\Post\PostFilterDTO;
+use App\Services\QueryRequestModifiers\Post\PostOrderDTO;
+
+interface PostServiceInterface
+{
+    /**
+     * @return PaginableResource<Post>
+     */
+    public function fetchPosts(int $page, ?PostFilterDTO $filters, ?PostOrderDTO $orderDef): PaginableResource;
+
+    public function findPost(int $id): ?Post;
+
+    /**
+     * @param array<string, mixed> $data
+     * @return Post
+     */
+    public function storePost(array $data): Post;
+
+    /**
+     * @param array<string, mixed> $data
+     */
+    public function updatePost(array $data, int $id): ?Post;
+
+    public function deletePost(int $id): bool;
+}