Fix the problem of post list is incomplete due to no recursive query categories

src/main/java/run/halo/app/listener/post/PostRefreshStatusListener.java

@@ -1,16 +1,22 @@
 package run.halo.app.listener.post;
 
+import java.util.ArrayList;
 import java.util.List;
+import java.util.Set;
+import org.apache.commons.lang3.StringUtils;
 import org.springframework.context.event.EventListener;
+import org.springframework.lang.NonNull;
 import org.springframework.stereotype.Component;
 import run.halo.app.event.category.CategoryUpdatedEvent;
 import run.halo.app.event.post.PostUpdatedEvent;
 import run.halo.app.model.entity.Category;
 import run.halo.app.model.entity.Post;
+import run.halo.app.model.entity.PostCategory;
 import run.halo.app.model.enums.PostStatus;
 import run.halo.app.service.CategoryService;
 import run.halo.app.service.PostCategoryService;
 import run.halo.app.service.PostService;
+import run.halo.app.utils.ServiceUtils;
 
 /**
  * Post status management.
@@ -47,7 +53,7 @@ public void categoryUpdatedListener(CategoryUpdatedEvent event) {
         }
         boolean isPrivate = categoryService.isPrivate(category.getId());
 
-        List<Post> posts = postCategoryService.listPostBy(category.getId());
+        List<Post> posts = findPostsByCategoryIdRecursively(category.getId());
         if (isPrivate) {
             posts.forEach(post -> post.setStatus(PostStatus.INTIMATE));
         } else {
@@ -56,6 +62,17 @@ public void categoryUpdatedListener(CategoryUpdatedEvent event) {
         postService.updateInBatch(posts);
     }
 
+    @NonNull
+    private List<Post> findPostsByCategoryIdRecursively(Integer categoryId) {
+        Set<Integer> categoryIds =
+            ServiceUtils.fetchProperty(categoryService.listAllByParentId(categoryId),
+                Category::getId);
+        List<PostCategory> postCategories =
+            postCategoryService.listByCategoryIdList(new ArrayList<>(categoryIds));
+        Set<Integer> postIds = ServiceUtils.fetchProperty(postCategories, PostCategory::getPostId);
+        return postService.listAllByIds(postIds);
+    }
+
     /**
      * If the post belongs to any encryption category, set the status to INTIMATE.
      *
@@ -71,7 +88,7 @@ public void postUpdatedListener(PostUpdatedEvent event) {
             .stream()
             .anyMatch(postCategory -> categoryService.isPrivate(postCategory.getCategoryId()));
 
-        if (isPrivate) {
+        if (isPrivate || StringUtils.isNotBlank(post.getPassword())) {
             post.setStatus(PostStatus.INTIMATE);
             postService.update(post);
         }

src/test/java/run/halo/app/listener/PostRefreshStatusListenerTest.java

@@ -0,0 +1,89 @@
+package run.halo.app.listener;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import java.util.Set;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.jdbc.EmbeddedDatabaseConnection;
+import org.springframework.boot.test.autoconfigure.jdbc.AutoConfigureTestDatabase;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.event.ApplicationEvents;
+import org.springframework.test.context.event.RecordApplicationEvents;
+import run.halo.app.event.category.CategoryUpdatedEvent;
+import run.halo.app.model.entity.Category;
+import run.halo.app.model.entity.Post;
+import run.halo.app.model.enums.PostStatus;
+import run.halo.app.model.vo.PostDetailVO;
+import run.halo.app.service.CategoryService;
+import run.halo.app.service.PostService;
+
+/**
+ * @author guqing
+ * @date 2022-03-28
+ */
+@SpringBootTest
+@RecordApplicationEvents
+@AutoConfigureTestDatabase(connection = EmbeddedDatabaseConnection.H2)
+public class PostRefreshStatusListenerTest {
+
+    @Autowired
+    private ApplicationEvents applicationEvents;
+
+    @Autowired
+    private CategoryService categoryService;
+
+    @Autowired
+    private PostService postService;
+
+    private Post post;
+    private Category category1;
+
+    @BeforeEach
+    public void setUp() {
+        category1 = new Category();
+        category1.setId(1);
+        category1.setName("category-1");
+        category1.setSlug("category-1");
+        category1.setPassword("123");
+        category1.setParentId(0);
+
+        Category category2 = new Category();
+        category2.setId(2);
+        category2.setName("category-2");
+        category2.setSlug("category-2");
+        category2.setParentId(1);
+
+        categoryService.create(category1);
+        categoryService.create(category2);
+
+        post = new Post();
+        post.setId(1);
+        post.setSlug("post-1");
+        post.setTitle("post-title");
+    }
+
+    @Test
+    public void clearCategoryPasswordOfTopLevelTest() {
+        // After clearing the password of the top-level category,
+        // all articles belonging to this category and sub categories should be set
+        // to draft status.
+        PostDetailVO postDetailVO =
+            postService.createBy(post, Set.of(), Set.of(2), Set.of(), false);
+        assertThat(postDetailVO).isNotNull();
+        assertThat(postDetailVO.getStatus()).isEqualTo(PostStatus.INTIMATE);
+
+        category1.setPassword(null);
+        categoryService.update(category1);
+        assertThat(applicationEvents
+            .stream(CategoryUpdatedEvent.class)
+            .filter(event -> event.getCategory().getId() == 1)
+            .count())
+            .isEqualTo(1);
+
+        Post updatedPost = postService.getById(postDetailVO.getId());
+        assertThat(updatedPost).isNotNull();
+        assertThat(updatedPost.getStatus()).isEqualTo(PostStatus.DRAFT);
+    }
+}