1 use diesel::{pg::Pg, result::Error, *};
2 use lemmy_db_queries::{
3 aggregates::post_aggregates::PostAggregates,
13 use lemmy_db_schema::{
26 community::{Community, CommunityFollower, CommunitySafe, CommunityUserBan},
27 post::{Post, PostRead, PostSaved},
28 user::{UserSafe, User_},
34 #[derive(Debug, PartialEq, Serialize, Clone)]
37 pub creator: UserSafe,
38 pub community: CommunitySafe,
39 pub creator_banned_from_community: bool, // Left Join to CommunityUserBan
40 pub counts: PostAggregates,
41 pub subscribed: bool, // Left join to CommunityFollower
42 pub saved: bool, // Left join to PostSaved
43 pub read: bool, // Left join to PostRead
44 pub my_vote: Option<i16>, // Left join to PostLike
47 type PostViewTuple = (
51 Option<CommunityUserBan>,
53 Option<CommunityFollower>,
60 pub fn read(conn: &PgConnection, post_id: i32, my_user_id: Option<i32>) -> Result<Self, Error> {
61 // The left join below will return None in this case
62 let user_id_join = my_user_id.unwrap_or(-1);
68 creator_banned_from_community,
76 .inner_join(user_::table)
77 .inner_join(community::table)
79 community_user_ban::table.on(
81 .eq(community_user_ban::community_id)
82 .and(community_user_ban::user_id.eq(post::creator_id)),
85 .inner_join(post_aggregates::table)
87 community_follower::table.on(
89 .eq(community_follower::community_id)
90 .and(community_follower::user_id.eq(user_id_join)),
96 .eq(post_saved::post_id)
97 .and(post_saved::user_id.eq(user_id_join)),
103 .eq(post_read::post_id)
104 .and(post_read::user_id.eq(user_id_join)),
110 .eq(post_like::post_id)
111 .and(post_like::user_id.eq(user_id_join)),
116 User_::safe_columns_tuple(),
117 Community::safe_columns_tuple(),
118 community_user_ban::all_columns.nullable(),
119 post_aggregates::all_columns,
120 community_follower::all_columns.nullable(),
121 post_saved::all_columns.nullable(),
122 post_read::all_columns.nullable(),
123 post_like::score.nullable(),
125 .first::<PostViewTuple>(conn)?;
127 // If a user is given, then my_vote, if None, should be 0, not null
128 // Necessary to differentiate between other user's votes
129 let my_vote = if my_user_id.is_some() && post_like.is_none() {
139 creator_banned_from_community: creator_banned_from_community.is_some(),
141 subscribed: follower.is_some(),
142 saved: saved.is_some(),
143 read: read.is_some(),
149 pub struct PostQueryBuilder<'a> {
150 conn: &'a PgConnection,
151 listing_type: &'a ListingType,
153 creator_id: Option<i32>,
154 community_id: Option<i32>,
155 community_name: Option<String>,
156 my_user_id: Option<i32>,
157 search_term: Option<String>,
158 url_search: Option<String>,
166 impl<'a> PostQueryBuilder<'a> {
167 pub fn create(conn: &'a PgConnection) -> Self {
170 listing_type: &ListingType::All,
171 sort: &SortType::Hot,
174 community_name: None,
186 pub fn listing_type(mut self, listing_type: &'a ListingType) -> Self {
187 self.listing_type = listing_type;
191 pub fn sort(mut self, sort: &'a SortType) -> Self {
196 pub fn community_id<T: MaybeOptional<i32>>(mut self, community_id: T) -> Self {
197 self.community_id = community_id.get_optional();
201 pub fn my_user_id<T: MaybeOptional<i32>>(mut self, my_user_id: T) -> Self {
202 self.my_user_id = my_user_id.get_optional();
206 pub fn community_name<T: MaybeOptional<String>>(mut self, community_name: T) -> Self {
207 self.community_name = community_name.get_optional();
211 pub fn creator_id<T: MaybeOptional<i32>>(mut self, creator_id: T) -> Self {
212 self.creator_id = creator_id.get_optional();
216 pub fn search_term<T: MaybeOptional<String>>(mut self, search_term: T) -> Self {
217 self.search_term = search_term.get_optional();
221 pub fn url_search<T: MaybeOptional<String>>(mut self, url_search: T) -> Self {
222 self.url_search = url_search.get_optional();
226 pub fn show_nsfw(mut self, show_nsfw: bool) -> Self {
227 self.show_nsfw = show_nsfw;
231 pub fn saved_only(mut self, saved_only: bool) -> Self {
232 self.saved_only = saved_only;
236 pub fn page<T: MaybeOptional<i64>>(mut self, page: T) -> Self {
237 self.page = page.get_optional();
241 pub fn limit<T: MaybeOptional<i64>>(mut self, limit: T) -> Self {
242 self.limit = limit.get_optional();
246 pub fn list(self) -> Result<Vec<PostView>, Error> {
249 // The left join below will return None in this case
250 let user_id_join = self.my_user_id.unwrap_or(-1);
252 let mut query = post::table
253 .inner_join(user_::table)
254 .inner_join(community::table)
256 community_user_ban::table.on(
258 .eq(community_user_ban::community_id)
259 .and(community_user_ban::user_id.eq(community::creator_id)),
262 .inner_join(post_aggregates::table)
264 community_follower::table.on(
266 .eq(community_follower::community_id)
267 .and(community_follower::user_id.eq(user_id_join)),
271 post_saved::table.on(
273 .eq(post_saved::post_id)
274 .and(post_saved::user_id.eq(user_id_join)),
280 .eq(post_read::post_id)
281 .and(post_read::user_id.eq(user_id_join)),
287 .eq(post_like::post_id)
288 .and(post_like::user_id.eq(user_id_join)),
293 User_::safe_columns_tuple(),
294 Community::safe_columns_tuple(),
295 community_user_ban::all_columns.nullable(),
296 post_aggregates::all_columns,
297 community_follower::all_columns.nullable(),
298 post_saved::all_columns.nullable(),
299 post_read::all_columns.nullable(),
300 post_like::score.nullable(),
304 query = match self.listing_type {
305 ListingType::Subscribed => query.filter(community_follower::user_id.is_not_null()), // TODO could be this: and(community_follower::user_id.eq(user_id_join)),
306 ListingType::Local => query.filter(community::local.eq(true)),
310 if let Some(community_id) = self.community_id {
312 .filter(post::community_id.eq(community_id))
313 .then_order_by(post_aggregates::stickied.desc());
316 if let Some(community_name) = self.community_name {
318 .filter(community::name.eq(community_name))
319 .filter(community::local.eq(true))
320 .then_order_by(post_aggregates::stickied.desc());
323 if let Some(url_search) = self.url_search {
324 query = query.filter(post::url.eq(url_search));
327 if let Some(search_term) = self.search_term {
328 let searcher = fuzzy_search(&search_term);
329 query = query.filter(
331 .ilike(searcher.to_owned())
332 .or(post::body.ilike(searcher)),
336 // If its for a specific user, show the removed / deleted
337 if let Some(creator_id) = self.creator_id {
338 query = query.filter(post::creator_id.eq(creator_id));
343 .filter(post::nsfw.eq(false))
344 .filter(community::nsfw.eq(false));
347 // TODO These two might be wrong
349 query = query.filter(post_saved::id.is_not_null());
352 if self.unread_only {
353 query = query.filter(post_read::id.is_not_null());
356 query = match self.sort {
357 SortType::Active => query
359 hot_rank(post_aggregates::score, post_aggregates::newest_comment_time).desc(),
361 .then_order_by(post_aggregates::newest_comment_time.desc()),
362 SortType::Hot => query
363 .then_order_by(hot_rank(post_aggregates::score, post_aggregates::published).desc())
364 .then_order_by(post_aggregates::published.desc()),
365 SortType::New => query.then_order_by(post_aggregates::published.desc()),
366 SortType::MostComments => query.then_order_by(post_aggregates::comments.desc()),
367 SortType::TopAll => query.then_order_by(post_aggregates::score.desc()),
368 SortType::TopYear => query
369 .filter(post::published.gt(now - 1.years()))
370 .then_order_by(post_aggregates::score.desc()),
371 SortType::TopMonth => query
372 .filter(post::published.gt(now - 1.months()))
373 .then_order_by(post_aggregates::score.desc()),
374 SortType::TopWeek => query
375 .filter(post::published.gt(now - 1.weeks()))
376 .then_order_by(post_aggregates::score.desc()),
377 SortType::TopDay => query
378 .filter(post::published.gt(now - 1.days()))
379 .then_order_by(post_aggregates::score.desc()),
382 let (limit, offset) = limit_and_offset(self.page, self.limit);
387 .filter(post::removed.eq(false))
388 .filter(post::deleted.eq(false))
389 .filter(community::removed.eq(false))
390 .filter(community::deleted.eq(false));
392 debug!("Post View Query: {:?}", debug_query::<Pg, _>(&query));
394 let res = query.load::<PostViewTuple>(self.conn)?;
396 Ok(PostView::from_tuple_to_vec(res))
400 impl ViewToVec for PostView {
401 type DbTuple = PostViewTuple;
402 fn from_tuple_to_vec(items: Vec<Self::DbTuple>) -> Vec<Self> {
406 post: a.0.to_owned(),
407 creator: a.1.to_owned(),
408 community: a.2.to_owned(),
409 creator_banned_from_community: a.3.is_some(),
410 counts: a.4.to_owned(),
411 subscribed: a.5.is_some(),
412 saved: a.6.is_some(),
416 .collect::<Vec<Self>>()
422 use crate::post_view::{PostQueryBuilder, PostView};
423 use lemmy_db_queries::{
424 aggregates::post_aggregates::PostAggregates,
425 establish_unpooled_connection,
431 use lemmy_db_schema::source::{community::*, post::*, user::*};
435 let conn = establish_unpooled_connection();
437 let user_name = "tegan".to_string();
438 let community_name = "test_community_3".to_string();
439 let post_name = "test post 3".to_string();
441 let new_user = UserForm {
442 name: user_name.to_owned(),
443 preferred_username: None,
444 password_encrypted: "nope".into(),
446 matrix_user_id: None,
454 theme: "browser".into(),
455 default_sort_type: SortType::Hot as i16,
456 default_listing_type: ListingType::Subscribed as i16,
457 lang: "browser".into(),
459 send_notifications_to_email: false,
465 last_refreshed_at: None,
468 let inserted_user = User_::create(&conn, &new_user).unwrap();
470 let new_community = CommunityForm {
471 name: community_name.to_owned(),
472 title: "nada".to_owned(),
474 creator_id: inserted_user.id,
484 last_refreshed_at: None,
490 let inserted_community = Community::create(&conn, &new_community).unwrap();
492 let new_post = PostForm {
493 name: post_name.to_owned(),
496 creator_id: inserted_user.id,
497 community_id: inserted_community.id,
505 embed_description: None,
513 let inserted_post = Post::create(&conn, &new_post).unwrap();
515 let post_like_form = PostLikeForm {
516 post_id: inserted_post.id,
517 user_id: inserted_user.id,
521 let inserted_post_like = PostLike::like(&conn, &post_like_form).unwrap();
523 let expected_post_like = PostLike {
524 id: inserted_post_like.id,
525 post_id: inserted_post.id,
526 user_id: inserted_user.id,
527 published: inserted_post_like.published,
531 let read_post_listings_with_user = PostQueryBuilder::create(&conn)
532 .listing_type(&ListingType::Community)
533 .sort(&SortType::New)
534 .community_id(inserted_community.id)
535 .my_user_id(inserted_user.id)
539 let read_post_listings_no_user = PostQueryBuilder::create(&conn)
540 .listing_type(&ListingType::Community)
541 .sort(&SortType::New)
542 .community_id(inserted_community.id)
546 let read_post_listing_no_user = PostView::read(&conn, inserted_post.id, None).unwrap();
547 let read_post_listing_with_user =
548 PostView::read(&conn, inserted_post.id, Some(inserted_user.id)).unwrap();
550 let agg = PostAggregates::read(&conn, inserted_post.id).unwrap();
552 // the non user version
553 let expected_post_listing_no_user = PostView {
555 id: inserted_post.id,
557 creator_id: inserted_user.id,
560 published: inserted_post.published,
562 community_id: inserted_community.id,
569 embed_description: None,
572 ap_id: inserted_post.ap_id.to_owned(),
577 id: inserted_user.id,
579 preferred_username: None,
580 published: inserted_user.published,
582 actor_id: inserted_user.actor_id.to_owned(),
590 matrix_user_id: None,
592 creator_banned_from_community: false,
593 community: CommunitySafe {
594 id: inserted_community.id,
595 name: community_name,
600 actor_id: inserted_community.actor_id.to_owned(),
602 title: "nada".to_owned(),
604 creator_id: inserted_user.id,
608 published: inserted_community.published,
610 counts: PostAggregates {
612 post_id: inserted_post.id,
618 published: agg.published,
619 newest_comment_time: inserted_post.published,
626 // TODO More needs to be added here
627 let mut expected_post_listing_with_user = expected_post_listing_no_user.to_owned();
628 expected_post_listing_with_user.my_vote = Some(1);
630 let like_removed = PostLike::remove(&conn, inserted_user.id, inserted_post.id).unwrap();
631 let num_deleted = Post::delete(&conn, inserted_post.id).unwrap();
632 Community::delete(&conn, inserted_community.id).unwrap();
633 User_::delete(&conn, inserted_user.id).unwrap();
637 expected_post_listing_with_user,
638 read_post_listings_with_user[0]
640 assert_eq!(expected_post_listing_with_user, read_post_listing_with_user);
641 assert_eq!(1, read_post_listings_with_user.len());
644 assert_eq!(expected_post_listing_no_user, read_post_listings_no_user[0]);
645 assert_eq!(expected_post_listing_no_user, read_post_listing_no_user);
646 assert_eq!(1, read_post_listings_no_user.len());
648 // assert_eq!(expected_post, inserted_post);
649 // assert_eq!(expected_post, updated_post);
650 assert_eq!(expected_post_like, inserted_post_like);
651 assert_eq!(1, like_removed);
652 assert_eq!(1, num_deleted);