[#35] 팔로우한 모든 계정의 게시물 조회(메인) 기능 구현

- 내가 팔로우한 계정의 게시물만 볼 수 있도록 구현

src/main/java/me/liiot/snsserver/controller/PostController.java

@@ -51,6 +51,15 @@ public ResponseEntity<List<Post>> getUserFeed(@RequestParam(value = "userId") St
         return new ResponseEntity<>(posts, HttpStatus.OK);
     }
 
+    @GetMapping("/my-follows")
+    @CheckLogin
+    public ResponseEntity<List<Post>> getPostsOfAllFollows(@CurrentUser User currentUser) {
+
+        List<Post> posts = postService.getPostsOfAllFollows(currentUser.getUserId());
+
+        return new ResponseEntity<>(posts, HttpStatus.OK);
+    }
+
     @PatchMapping("/{postId}")
     @CheckLogin
     public ResponseEntity<Void> updatePost(@PathVariable int postId,

src/main/java/me/liiot/snsserver/mapper/PostMapper.java

@@ -24,6 +24,9 @@ public interface PostMapper {
     @ClientDatabase(value = ClientDatabases.SLAVE)
     List<Post> getPostsByUserId(String userId);
 
+    @ClientDatabase(value = ClientDatabases.SLAVE)
+    List<Post> getPostsOfAllFollows(String userId);
+
     @ClientDatabase(value = ClientDatabases.SLAVE)
     boolean isAuthorizedOnPost(@Param("userId") String userId, @Param("postId") int postId);
 

src/main/java/me/liiot/snsserver/service/PostService.java

@@ -15,6 +15,8 @@ public interface PostService {
 
     public List<Post> getPostsByUser(String userId);
 
+    public List<Post> getPostsOfAllFollows(String userId);
+
     public void updatePost(User user, int postId, String content) throws AccessException;
 
     public void deletePost(User user, int postId) throws AccessException;

src/main/java/me/liiot/snsserver/service/PostServiceImpl.java

@@ -77,6 +77,14 @@ public List<Post> getPostsByUser(String userId) {
         return posts;
     }
 
+    @Override
+    public List<Post> getPostsOfAllFollows(String userId) {
+
+        List<Post> posts = postMapper.getPostsOfAllFollows(userId);
+
+        return posts;
+    }
+
     @Override
     @Caching(evict = {@CacheEvict(cacheNames = CacheNames.POST, key = "#postId"),
                       @CacheEvict(cacheNames = CacheNames.FEED, key = "#user.userId")})

src/main/resources/mapper/PostMapper.xml

@@ -50,6 +50,14 @@
         ORDER BY p.createTime DESC
     </select>
 
+    <select id="getPostsOfAllFollows" parameterType="String" resultMap="postsWithImagesMap">
+        SELECT p.id, p.userId, p.content, p.createTime, i.id, i.postId, i.imageName, i.imagePath, i.seq
+        FROM post as p
+        LEFT OUTER JOIN image as i ON i.postId = p.id
+        WHERE p.userId IN (SELECT followUserId FROM follow WHERE userId = #{userId})
+        ORDER BY p.createTime DESC
+    </select>
+
     <select id="isAuthorizedOnPost" resultType="boolean">
         SELECT EXISTS
         (SELECT id FROM post WHERE id = #{postId} AND userId = #{userId})

src/test/java/me/liiot/snsserver/service/PostServiceTest.java

@@ -166,6 +166,23 @@ void getPostsByUserTest() {
         verify(postMapper).getPostsByUserId("test2");
     }
 
+    @DisplayName("메인 / 사용자가 팔로우한 모든 계정의 게시물 조회")
+    @Test
+    void getPostsOfAllFollowsTest() {
+        Post testPost1 = new Post(11, "test3", "content", Date.valueOf("2020-10-19"));
+        Post testPost2 = new Post(12, "test4", "content", Date.valueOf("2020-10-19"));
+        List<Post> posts = new ArrayList<>();
+        posts.add(testPost1);
+        posts.add(testPost2);
+
+        when(postMapper.getPostsOfAllFollows("test1")).thenReturn(posts);
+
+        List<Post> result = postService.getPostsOfAllFollows(testUser.getUserId());
+
+        assertEquals(result, posts);
+        verify(postMapper).getPostsOfAllFollows("test1");
+    }
+
     @DisplayName("자신이 작성한 게시물 수정")
     @Test
     void updatePostTestWithSuccess() {