1 use crate::structs::PostView;
4 dsl::{now, IntervalDsl},
12 NullableExpressionMethods,
13 PgTextExpressionMethods,
16 use diesel_async::RunQueryDsl;
17 use lemmy_db_schema::{
18 aggregates::structs::PostAggregates,
19 newtypes::{CommunityId, LocalUserId, PersonId, PostId},
28 person_post_aggregates,
36 community::{Community, CommunityFollower, CommunityPersonBan},
37 local_user::LocalUser,
39 person_block::PersonBlock,
40 post::{Post, PostRead, PostSaved},
43 utils::{functions::hot_rank, fuzzy_search, get_conn, limit_and_offset, DbPool},
48 use typed_builder::TypedBuilder;
50 type PostViewTuple = (
54 Option<CommunityPersonBan>,
56 Option<CommunityFollower>,
64 sql_function!(fn coalesce(x: sql_types::Nullable<sql_types::BigInt>, y: sql_types::BigInt) -> sql_types::BigInt);
70 my_person_id: Option<PersonId>,
71 is_mod_or_admin: Option<bool>,
72 ) -> Result<Self, Error> {
73 let conn = &mut get_conn(pool).await?;
75 // The left join below will return None in this case
76 let person_id_join = my_person_id.unwrap_or(PersonId(-1));
77 let person_alias_1 = diesel::alias!(person as person1);
78 let mut query = post::table
80 .inner_join(person::table)
81 .inner_join(community::table)
83 community_person_ban::table.on(
85 .eq(community_person_ban::community_id)
86 .and(community_person_ban::person_id.eq(post::creator_id))
88 community_person_ban::expires
90 .or(community_person_ban::expires.gt(now)),
94 .inner_join(post_aggregates::table)
96 community_follower::table.on(
98 .eq(community_follower::community_id)
99 .and(community_follower::person_id.eq(person_id_join)),
103 post_saved::table.on(
105 .eq(post_saved::post_id)
106 .and(post_saved::person_id.eq(person_id_join)),
112 .eq(post_read::post_id)
113 .and(post_read::person_id.eq(person_id_join)),
117 person_block::table.on(
119 .eq(person_block::target_id)
120 .and(person_block::person_id.eq(person_id_join)),
126 .eq(post_like::post_id)
127 .and(post_like::person_id.eq(person_id_join)),
131 person_post_aggregates::table.on(
133 .eq(person_post_aggregates::post_id)
134 .and(person_post_aggregates::person_id.eq(person_id_join)),
137 // Used to check if you are the post creator
141 .eq(person_alias_1.field(person::id))
142 .and(person_alias_1.field(person::id).eq(person_id_join)),
148 community::all_columns,
149 community_person_ban::all_columns.nullable(),
150 post_aggregates::all_columns,
151 community_follower::all_columns.nullable(),
152 post_saved::all_columns.nullable(),
153 post_read::all_columns.nullable(),
154 person_block::all_columns.nullable(),
155 post_like::score.nullable(),
157 post_aggregates::comments.nullable() - person_post_aggregates::read_comments.nullable(),
158 post_aggregates::comments,
163 // If you are not a moderator, exclude deleted or removed content
164 if !is_mod_or_admin.unwrap_or(true) {
165 // If you are not the creator, then remove the other fields.
168 person_alias_1.field(person::id).is_null().and(
171 .and(post::deleted.eq(false))
172 .and(community::removed.eq(false))
173 .and(community::deleted.eq(false)),
176 // If you are the creator, keep them
177 .or_filter(person_alias_1.field(person::id).is_not_null())
184 creator_banned_from_community,
192 ) = query.first::<PostViewTuple>(conn).await?;
194 // If a person is given, then my_vote, if None, should be 0, not null
195 // Necessary to differentiate between other person's votes
196 let my_vote = if my_person_id.is_some() && post_like.is_none() {
206 creator_banned_from_community: creator_banned_from_community.is_some(),
208 subscribed: CommunityFollower::to_subscribed_type(&follower),
209 saved: saved.is_some(),
210 read: read.is_some(),
211 creator_blocked: creator_blocked.is_some(),
218 #[derive(TypedBuilder)]
219 #[builder(field_defaults(default))]
220 pub struct PostQuery<'a> {
223 listing_type: Option<ListingType>,
224 sort: Option<SortType>,
225 creator_id: Option<PersonId>,
226 community_id: Option<CommunityId>,
227 local_user: Option<&'a LocalUser>,
228 search_term: Option<String>,
229 url_search: Option<String>,
230 saved_only: Option<bool>,
231 /// Used to show deleted or removed posts for admins
232 is_mod_or_admin: Option<bool>,
237 impl<'a> PostQuery<'a> {
238 pub async fn list(self) -> Result<Vec<PostView>, Error> {
239 let conn = &mut get_conn(self.pool).await?;
241 // The left join below will return None in this case
242 let person_id_join = self.local_user.map(|l| l.person_id).unwrap_or(PersonId(-1));
243 let local_user_id_join = self.local_user.map(|l| l.id).unwrap_or(LocalUserId(-1));
244 let person_alias_1 = diesel::alias!(person as person1);
246 let mut query = post::table
247 .inner_join(person::table)
248 .inner_join(community::table)
250 community_person_ban::table.on(
252 .eq(community_person_ban::community_id)
253 .and(community_person_ban::person_id.eq(post::creator_id))
255 community_person_ban::expires
257 .or(community_person_ban::expires.gt(now)),
261 .inner_join(post_aggregates::table)
263 community_follower::table.on(
265 .eq(community_follower::community_id)
266 .and(community_follower::person_id.eq(person_id_join)),
270 post_saved::table.on(
272 .eq(post_saved::post_id)
273 .and(post_saved::person_id.eq(person_id_join)),
279 .eq(post_read::post_id)
280 .and(post_read::person_id.eq(person_id_join)),
284 person_block::table.on(
286 .eq(person_block::target_id)
287 .and(person_block::person_id.eq(person_id_join)),
291 community_block::table.on(
293 .eq(community_block::community_id)
294 .and(community_block::person_id.eq(person_id_join)),
300 .eq(post_like::post_id)
301 .and(post_like::person_id.eq(person_id_join)),
305 person_post_aggregates::table.on(
307 .eq(person_post_aggregates::post_id)
308 .and(person_post_aggregates::person_id.eq(person_id_join)),
312 local_user_language::table.on(
314 .eq(local_user_language::language_id)
315 .and(local_user_language::local_user_id.eq(local_user_id_join)),
318 // Used to check if you are the post creator
322 .eq(person_alias_1.field(person::id))
323 .and(person_alias_1.field(person::id).eq(person_id_join)),
329 community::all_columns,
330 community_person_ban::all_columns.nullable(),
331 post_aggregates::all_columns,
332 community_follower::all_columns.nullable(),
333 post_saved::all_columns.nullable(),
334 post_read::all_columns.nullable(),
335 person_block::all_columns.nullable(),
336 post_like::score.nullable(),
338 post_aggregates::comments.nullable() - person_post_aggregates::read_comments.nullable(),
339 post_aggregates::comments,
344 // If you are not a moderator, exclude deleted or removed content
345 if !self.is_mod_or_admin.unwrap_or(true) {
346 // If you are not the creator, then remove the other fields.
349 person_alias_1.field(person::id).is_null().and(
352 .and(post::deleted.eq(false))
353 .and(community::removed.eq(false))
354 .and(community::deleted.eq(false)),
357 // If you are the creator, keep them
358 .or_filter(person_alias_1.field(person::id).is_not_null())
361 if let Some(listing_type) = self.listing_type {
363 ListingType::Subscribed => {
364 query = query.filter(community_follower::person_id.is_not_null())
366 ListingType::Local => {
367 query = query.filter(community::local.eq(true)).filter(
370 .or(community_follower::person_id.eq(person_id_join)),
373 ListingType::All => {
374 query = query.filter(
377 .or(community_follower::person_id.eq(person_id_join)),
382 if self.community_id.is_none() {
383 query = query.then_order_by(post_aggregates::featured_local.desc());
384 } else if let Some(community_id) = self.community_id {
386 .filter(post::community_id.eq(community_id))
387 .then_order_by(post_aggregates::featured_community.desc());
390 if let Some(url_search) = self.url_search {
391 query = query.filter(post::url.eq(url_search));
394 if let Some(search_term) = self.search_term {
395 let searcher = fuzzy_search(&search_term);
396 query = query.filter(
398 .ilike(searcher.clone())
399 .or(post::body.ilike(searcher)),
403 if let Some(creator_id) = self.creator_id {
404 query = query.filter(post::creator_id.eq(creator_id));
407 if !self.local_user.map(|l| l.show_nsfw).unwrap_or(false) {
409 .filter(post::nsfw.eq(false))
410 .filter(community::nsfw.eq(false));
413 if !self.local_user.map(|l| l.show_bot_accounts).unwrap_or(true) {
414 query = query.filter(person::bot_account.eq(false));
417 if self.saved_only.unwrap_or(false) {
418 query = query.filter(post_saved::post_id.is_not_null());
420 // Only hide the read posts, if the saved_only is false. Otherwise ppl with the hide_read
421 // setting wont be able to see saved posts.
422 else if !self.local_user.map(|l| l.show_read_posts).unwrap_or(true) {
423 query = query.filter(post_read::post_id.is_null());
426 if self.local_user.is_some() {
427 // Filter out the rows with missing languages
428 query = query.filter(local_user_language::language_id.is_not_null());
430 // Don't show blocked communities or persons
431 query = query.filter(community_block::person_id.is_null());
432 query = query.filter(person_block::person_id.is_null());
435 query = match self.sort.unwrap_or(SortType::Hot) {
436 SortType::Active => query
439 post_aggregates::score,
440 post_aggregates::newest_comment_time_necro,
444 .then_order_by(post_aggregates::newest_comment_time_necro.desc()),
445 SortType::Hot => query
446 .then_order_by(hot_rank(post_aggregates::score, post_aggregates::published).desc())
447 .then_order_by(post_aggregates::published.desc()),
448 SortType::New => query.then_order_by(post_aggregates::published.desc()),
449 SortType::Old => query.then_order_by(post_aggregates::published.asc()),
450 SortType::NewComments => query.then_order_by(post_aggregates::newest_comment_time.desc()),
451 SortType::MostComments => query
452 .then_order_by(post_aggregates::comments.desc())
453 .then_order_by(post_aggregates::published.desc()),
454 SortType::TopAll => query
455 .then_order_by(post_aggregates::score.desc())
456 .then_order_by(post_aggregates::published.desc()),
457 SortType::TopYear => query
458 .filter(post_aggregates::published.gt(now - 1.years()))
459 .then_order_by(post_aggregates::score.desc())
460 .then_order_by(post_aggregates::published.desc()),
461 SortType::TopMonth => query
462 .filter(post_aggregates::published.gt(now - 1.months()))
463 .then_order_by(post_aggregates::score.desc())
464 .then_order_by(post_aggregates::published.desc()),
465 SortType::TopWeek => query
466 .filter(post_aggregates::published.gt(now - 1.weeks()))
467 .then_order_by(post_aggregates::score.desc())
468 .then_order_by(post_aggregates::published.desc()),
469 SortType::TopDay => query
470 .filter(post_aggregates::published.gt(now - 1.days()))
471 .then_order_by(post_aggregates::score.desc())
472 .then_order_by(post_aggregates::published.desc()),
475 let (limit, offset) = limit_and_offset(self.page, self.limit)?;
477 query = query.limit(limit).offset(offset);
479 debug!("Post View Query: {:?}", debug_query::<Pg, _>(&query));
481 let res = query.load::<PostViewTuple>(conn).await?;
483 Ok(res.into_iter().map(PostView::from_tuple).collect())
487 impl JoinView for PostView {
488 type JoinTuple = PostViewTuple;
489 fn from_tuple(a: Self::JoinTuple) -> Self {
494 creator_banned_from_community: a.3.is_some(),
496 subscribed: CommunityFollower::to_subscribed_type(&a.5),
497 saved: a.6.is_some(),
499 creator_blocked: a.8.is_some(),
501 unread_comments: a.10,
508 use crate::post_view::{PostQuery, PostView};
509 use lemmy_db_schema::{
510 aggregates::structs::PostAggregates,
511 impls::actor_language::UNDETERMINED_ID,
512 newtypes::LanguageId,
514 actor_language::LocalUserLanguage,
515 community::{Community, CommunityInsertForm},
516 community_block::{CommunityBlock, CommunityBlockForm},
519 local_user::{LocalUser, LocalUserInsertForm, LocalUserUpdateForm},
520 person::{Person, PersonInsertForm},
521 person_block::{PersonBlock, PersonBlockForm},
522 post::{Post, PostInsertForm, PostLike, PostLikeForm},
524 traits::{Blockable, Crud, Likeable},
525 utils::{build_db_pool_for_tests, DbPool},
529 use serial_test::serial;
532 inserted_instance: Instance,
533 inserted_person: Person,
534 inserted_local_user: LocalUser,
535 inserted_blocked_person: Person,
536 inserted_bot: Person,
537 inserted_community: Community,
541 async fn init_data(pool: &DbPool) -> Data {
542 let inserted_instance = Instance::read_or_create(pool, "my_domain.tld".to_string())
546 let person_name = "tegan".to_string();
548 let new_person = PersonInsertForm::builder()
549 .name(person_name.clone())
550 .public_key("pubkey".to_string())
551 .instance_id(inserted_instance.id)
554 let inserted_person = Person::create(pool, &new_person).await.unwrap();
556 let local_user_form = LocalUserInsertForm::builder()
557 .person_id(inserted_person.id)
558 .password_encrypted(String::new())
560 let inserted_local_user = LocalUser::create(pool, &local_user_form).await.unwrap();
562 let new_bot = PersonInsertForm::builder()
563 .name("mybot".to_string())
564 .bot_account(Some(true))
565 .public_key("pubkey".to_string())
566 .instance_id(inserted_instance.id)
569 let inserted_bot = Person::create(pool, &new_bot).await.unwrap();
571 let new_community = CommunityInsertForm::builder()
572 .name("test_community_3".to_string())
573 .title("nada".to_owned())
574 .public_key("pubkey".to_string())
575 .instance_id(inserted_instance.id)
578 let inserted_community = Community::create(pool, &new_community).await.unwrap();
580 // Test a person block, make sure the post query doesn't include their post
581 let blocked_person = PersonInsertForm::builder()
583 .public_key("pubkey".to_string())
584 .instance_id(inserted_instance.id)
587 let inserted_blocked_person = Person::create(pool, &blocked_person).await.unwrap();
589 let post_from_blocked_person = PostInsertForm::builder()
590 .name("blocked_person_post".to_string())
591 .creator_id(inserted_blocked_person.id)
592 .community_id(inserted_community.id)
593 .language_id(Some(LanguageId(1)))
596 Post::create(pool, &post_from_blocked_person).await.unwrap();
599 let person_block = PersonBlockForm {
600 person_id: inserted_person.id,
601 target_id: inserted_blocked_person.id,
604 PersonBlock::block(pool, &person_block).await.unwrap();
607 let new_post = PostInsertForm::builder()
608 .name("test post 3".to_string())
609 .creator_id(inserted_person.id)
610 .community_id(inserted_community.id)
611 .language_id(Some(LanguageId(47)))
614 let inserted_post = Post::create(pool, &new_post).await.unwrap();
616 let new_bot_post = PostInsertForm::builder()
617 .name("test bot post".to_string())
618 .creator_id(inserted_bot.id)
619 .community_id(inserted_community.id)
622 let _inserted_bot_post = Post::create(pool, &new_bot_post).await.unwrap();
628 inserted_blocked_person,
637 async fn post_listing_with_person() {
638 let pool = &build_db_pool_for_tests().await;
639 let data = init_data(pool).await;
641 let local_user_form = LocalUserUpdateForm::builder()
642 .show_bot_accounts(Some(false))
644 let inserted_local_user =
645 LocalUser::update(pool, data.inserted_local_user.id, &local_user_form)
649 let read_post_listing = PostQuery::builder()
651 .sort(Some(SortType::New))
652 .community_id(Some(data.inserted_community.id))
653 .local_user(Some(&inserted_local_user))
659 let post_listing_single_with_person = PostView::read(
661 data.inserted_post.id,
662 Some(data.inserted_person.id),
668 let mut expected_post_listing_with_user = expected_post_view(&data, pool).await;
670 // Should be only one person, IE the bot post, and blocked should be missing
671 assert_eq!(1, read_post_listing.len());
673 assert_eq!(expected_post_listing_with_user, read_post_listing[0]);
674 expected_post_listing_with_user.my_vote = Some(0);
676 expected_post_listing_with_user,
677 post_listing_single_with_person
680 let local_user_form = LocalUserUpdateForm::builder()
681 .show_bot_accounts(Some(true))
683 let inserted_local_user =
684 LocalUser::update(pool, data.inserted_local_user.id, &local_user_form)
688 let post_listings_with_bots = PostQuery::builder()
690 .sort(Some(SortType::New))
691 .community_id(Some(data.inserted_community.id))
692 .local_user(Some(&inserted_local_user))
697 // should include bot post which has "undetermined" language
698 assert_eq!(2, post_listings_with_bots.len());
700 cleanup(data, pool).await;
705 async fn post_listing_no_person() {
706 let pool = &build_db_pool_for_tests().await;
707 let data = init_data(pool).await;
709 let read_post_listing_multiple_no_person = PostQuery::builder()
711 .sort(Some(SortType::New))
712 .community_id(Some(data.inserted_community.id))
718 let read_post_listing_single_no_person =
719 PostView::read(pool, data.inserted_post.id, None, None)
723 let expected_post_listing_no_person = expected_post_view(&data, pool).await;
725 // Should be 2 posts, with the bot post, and the blocked
726 assert_eq!(3, read_post_listing_multiple_no_person.len());
729 expected_post_listing_no_person,
730 read_post_listing_multiple_no_person[1]
733 expected_post_listing_no_person,
734 read_post_listing_single_no_person
737 cleanup(data, pool).await;
742 async fn post_listing_block_community() {
743 let pool = &build_db_pool_for_tests().await;
744 let data = init_data(pool).await;
746 let community_block = CommunityBlockForm {
747 person_id: data.inserted_person.id,
748 community_id: data.inserted_community.id,
750 CommunityBlock::block(pool, &community_block).await.unwrap();
752 let read_post_listings_with_person_after_block = PostQuery::builder()
754 .sort(Some(SortType::New))
755 .community_id(Some(data.inserted_community.id))
756 .local_user(Some(&data.inserted_local_user))
761 // Should be 0 posts after the community block
762 assert_eq!(0, read_post_listings_with_person_after_block.len());
764 CommunityBlock::unblock(pool, &community_block)
767 cleanup(data, pool).await;
772 async fn post_listing_like() {
773 let pool = &build_db_pool_for_tests().await;
774 let data = init_data(pool).await;
776 let post_like_form = PostLikeForm {
777 post_id: data.inserted_post.id,
778 person_id: data.inserted_person.id,
782 let inserted_post_like = PostLike::like(pool, &post_like_form).await.unwrap();
784 let expected_post_like = PostLike {
785 id: inserted_post_like.id,
786 post_id: data.inserted_post.id,
787 person_id: data.inserted_person.id,
788 published: inserted_post_like.published,
791 assert_eq!(expected_post_like, inserted_post_like);
793 let like_removed = PostLike::remove(pool, data.inserted_person.id, data.inserted_post.id)
796 assert_eq!(1, like_removed);
797 cleanup(data, pool).await;
802 async fn post_listing_person_language() {
803 let pool = &build_db_pool_for_tests().await;
804 let data = init_data(pool).await;
806 let spanish_id = Language::read_id_from_code(pool, Some("es"))
810 let post_spanish = PostInsertForm::builder()
811 .name("asffgdsc".to_string())
812 .creator_id(data.inserted_person.id)
813 .community_id(data.inserted_community.id)
814 .language_id(Some(spanish_id))
817 Post::create(pool, &post_spanish).await.unwrap();
819 let post_listings_all = PostQuery::builder()
821 .sort(Some(SortType::New))
822 .local_user(Some(&data.inserted_local_user))
828 // no language filters specified, all posts should be returned
829 assert_eq!(3, post_listings_all.len());
831 let french_id = Language::read_id_from_code(pool, Some("fr"))
835 LocalUserLanguage::update(pool, vec![french_id], data.inserted_local_user.id)
839 let post_listing_french = PostQuery::builder()
841 .sort(Some(SortType::New))
842 .local_user(Some(&data.inserted_local_user))
848 // only one french language post should be returned
849 assert_eq!(1, post_listing_french.len());
850 assert_eq!(french_id, post_listing_french[0].post.language_id);
852 LocalUserLanguage::update(
854 vec![french_id, UNDETERMINED_ID],
855 data.inserted_local_user.id,
859 let post_listings_french_und = PostQuery::builder()
861 .sort(Some(SortType::New))
862 .local_user(Some(&data.inserted_local_user))
868 // french post and undetermined language post should be returned
869 assert_eq!(2, post_listings_french_und.len());
872 post_listings_french_und[0].post.language_id
874 assert_eq!(french_id, post_listings_french_und[1].post.language_id);
876 cleanup(data, pool).await;
879 async fn cleanup(data: Data, pool: &DbPool) {
880 let num_deleted = Post::delete(pool, data.inserted_post.id).await.unwrap();
881 Community::delete(pool, data.inserted_community.id)
884 Person::delete(pool, data.inserted_person.id).await.unwrap();
885 Person::delete(pool, data.inserted_bot.id).await.unwrap();
886 Person::delete(pool, data.inserted_blocked_person.id)
889 Instance::delete(pool, data.inserted_instance.id)
892 assert_eq!(1, num_deleted);
895 async fn expected_post_view(data: &Data, pool: &DbPool) -> PostView {
896 let (inserted_person, inserted_community, inserted_post) = (
897 &data.inserted_person,
898 &data.inserted_community,
901 let agg = PostAggregates::read(pool, inserted_post.id).await.unwrap();
905 id: inserted_post.id,
906 name: inserted_post.name.clone(),
907 creator_id: inserted_person.id,
910 published: inserted_post.published,
912 community_id: inserted_community.id,
918 embed_description: None,
919 embed_video_url: None,
921 ap_id: inserted_post.ap_id.clone(),
923 language_id: LanguageId(47),
924 featured_community: false,
925 featured_local: false,
930 id: inserted_person.id,
931 name: inserted_person.name.clone(),
933 published: inserted_person.published,
935 actor_id: inserted_person.actor_id.clone(),
944 inbox_url: inserted_person.inbox_url.clone(),
945 shared_inbox_url: None,
946 matrix_user_id: None,
948 instance_id: data.inserted_instance.id,
949 private_key: inserted_person.private_key.clone(),
950 public_key: inserted_person.public_key.clone(),
951 last_refreshed_at: inserted_person.last_refreshed_at,
953 creator_banned_from_community: false,
954 community: Community {
955 id: inserted_community.id,
956 name: inserted_community.name.clone(),
961 actor_id: inserted_community.actor_id.clone(),
963 title: "nada".to_owned(),
968 posting_restricted_to_mods: false,
969 published: inserted_community.published,
970 instance_id: data.inserted_instance.id,
971 private_key: inserted_community.private_key.clone(),
972 public_key: inserted_community.public_key.clone(),
973 last_refreshed_at: inserted_community.last_refreshed_at,
974 followers_url: inserted_community.followers_url.clone(),
975 inbox_url: inserted_community.inbox_url.clone(),
976 shared_inbox_url: inserted_community.shared_inbox_url.clone(),
977 moderators_url: inserted_community.moderators_url.clone(),
978 featured_url: inserted_community.featured_url.clone(),
980 counts: PostAggregates {
982 post_id: inserted_post.id,
987 published: agg.published,
988 newest_comment_time_necro: inserted_post.published,
989 newest_comment_time: inserted_post.published,
990 featured_community: false,
991 featured_local: false,
993 subscribed: SubscribedType::NotSubscribed,
996 creator_blocked: false,