Created
August 1, 2017 14:12
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override fun queryPosts(tab: FeedTabController.Tab): Observable<List<Post>> { | |
val postsQuery = ParseQuery.getQuery<ParseObject>("Post") | |
.whereExists("createdAt") | |
.whereExists("building") | |
.whereExists("author") | |
.include("building") | |
.include("photo") | |
.include("author") | |
.include("author.Picture") | |
.whereEqualTo("building", ParseObject.createWithoutData("Building", sessionManager.buildingId)) | |
.setLimit(QUERY_LIMIT) | |
.setCachePolicy(ParseQuery.CachePolicy.NETWORK_ELSE_CACHE) | |
when (tab) { | |
FeedTabController.Tab.AllPosts -> { | |
postsQuery.whereEqualTo("category", "community") | |
} | |
FeedTabController.Tab.TenantPosts -> { | |
postsQuery | |
.whereDoesNotExist("stickyUntil") | |
.whereEqualTo("category", "community") | |
.whereMatchesQuery("author", ParseUser.getQuery().whereNotEqualTo("AccessLevel", "Manager")) | |
} | |
FeedTabController.Tab.ManagerPosts -> { | |
postsQuery | |
.whereEqualTo("category", "community") | |
.whereMatchesQuery("author", ParseUser.getQuery().whereEqualTo("AccessLevel", "Manager")) | |
} | |
FeedTabController.Tab.FeedbackPosts -> { | |
postsQuery.whereContainedIn("category", listOf("issue", "compliment")) | |
if (!sessionManager.isManager) { | |
postsQuery.whereEqualTo("author", ParseUser.getCurrentUser()) | |
} | |
} | |
} | |
val now = Date() | |
return ParseObservable.find(postsQuery) | |
.toList() | |
.flatMap { posts -> | |
if (posts.isEmpty()) { | |
return@flatMap Observable.empty<Triple<List<ParseObject>, List<ParseObject>, List<ParseObject>>>() | |
} | |
val likesQueries = ArrayList<ParseQuery<ParseObject>>() | |
val commentsQueries = ArrayList<ParseQuery<ParseObject>>() | |
posts.forEach { | |
likesQueries.add(ParseQuery.getQuery<ParseObject>("Like") | |
.whereEqualTo("post", it)) | |
commentsQueries.add(ParseQuery.getQuery<ParseObject>("Reply") | |
.whereEqualTo("post", it)) | |
} | |
return@flatMap Observable.zip( | |
ParseObservable.find(ParseQuery.or(likesQueries)).toList(), | |
ParseObservable.find(ParseQuery.or(commentsQueries)).toList(), | |
{ likes, comments -> Triple(posts, likes, comments) }) | |
} | |
.map { (posts, likes, comments) -> | |
posts.map { post -> | |
val postLikes = likes.filter { it.getParseObject("post").objectId == post.objectId } | |
val isLiked = postLikes.count { it.getParseObject("user").objectId == sessionManager.userId } > 0 | |
val postComments = comments.filter { it.getParseObject("post").objectId == post.objectId } | |
val isCommented = postComments.count { it.getParseObject("author").objectId == sessionManager.userId } > 0 | |
ParseConverter.convertToPost(post, now, postLikes.size, isLiked, postComments.size, isCommented) | |
} | |
} | |
.map { it.sortedWith(compareByDescending(Post::isSticky).thenByDescending(Post::createdAt)) } | |
.doOnNext { Timber.d("query posts success: ${it.size}") } | |
.doOnError { Timber.e(it, "query posts failure") } | |
.defaultIfEmpty(emptyList()) | |
.observeOn(AndroidSchedulers.mainThread()) | |
} |
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