private List<PostMetadata> metadataForCategory(Category category) {
return category
.getPostsSet()
.stream()
.map(post -> post.getMetadata())
.filter(md -> md != null)
.collect(toList());
}
private List<Wrap> postsForCategory(Category category) {
return category != null
? new PostsPresentationBean(category.getPostsSet()).getVisiblePosts(NUM_POSTS)
: emptyList();
}