crates/db_views/src/post_view.rs

   1 use crate::structs::PostView;
   2 use diesel::{
   3   debug_query,
   4   dsl::{now, IntervalDsl},
   5   pg::Pg,
   6   result::Error,
   7   sql_function,
   8   sql_types,
   9   BoolExpressionMethods,
  10   ExpressionMethods,
  11   JoinOnDsl,
  12   NullableExpressionMethods,
  13   PgTextExpressionMethods,
  14   QueryDsl,
  15 };
  16 use diesel_async::RunQueryDsl;
  17 use lemmy_db_schema::{
  18   aggregates::structs::PostAggregates,
  19   newtypes::{CommunityId, DbUrl, LocalUserId, PersonId, PostId},
  20   schema::{
  21     community,
  22     community_block,
  23     community_follower,
  24     community_person_ban,
  25     local_user_language,
  26     person,
  27     person_block,
  28     person_post_aggregates,
  29     post,
  30     post_aggregates,
  31     post_like,
  32     post_read,
  33     post_saved,
  34   },
  35   source::{
  36     community::{Community, CommunityFollower, CommunityPersonBan, CommunitySafe},
  37     local_user::LocalUser,
  38     person::{Person, PersonSafe},
  39     person_block::PersonBlock,
  40     post::{Post, PostRead, PostSaved},
  41   },
  42   traits::{ToSafe, ViewToVec},
  43   utils::{functions::hot_rank, fuzzy_search, get_conn, limit_and_offset, DbPool},
  44   ListingType,
  45   SortType,
  46 };
  47 use tracing::debug;
  48 use typed_builder::TypedBuilder;
  49
  50 type PostViewTuple = (
  51   Post,
  52   PersonSafe,
  53   CommunitySafe,
  54   Option<CommunityPersonBan>,
  55   PostAggregates,
  56   Option<CommunityFollower>,
  57   Option<PostSaved>,
  58   Option<PostRead>,
  59   Option<PersonBlock>,
  60   Option<i16>,
  61   i64,
  62 );
  63
  64 sql_function!(fn coalesce(x: sql_types::Nullable<sql_types::BigInt>, y: sql_types::BigInt) -> sql_types::BigInt);
  65
  66 impl PostView {
  67   pub async fn read(
  68     pool: &DbPool,
  69     post_id: PostId,
  70     my_person_id: Option<PersonId>,
  71   ) -> Result<Self, Error> {
  72     let conn = &mut get_conn(pool).await?;
  73
  74     // The left join below will return None in this case
  75     let person_id_join = my_person_id.unwrap_or(PersonId(-1));
  76     let (
  77       post,
  78       creator,
  79       community,
  80       creator_banned_from_community,
  81       counts,
  82       follower,
  83       saved,
  84       read,
  85       creator_blocked,
  86       post_like,
  87       unread_comments,
  88     ) = post::table
  89       .find(post_id)
  90       .inner_join(person::table)
  91       .inner_join(community::table)
  92       .left_join(
  93         community_person_ban::table.on(
  94           post::community_id
  95             .eq(community_person_ban::community_id)
  96             .and(community_person_ban::person_id.eq(post::creator_id))
  97             .and(
  98               community_person_ban::expires
  99                 .is_null()
 100                 .or(community_person_ban::expires.gt(now)),
 101             ),
 102         ),
 103       )
 104       .inner_join(post_aggregates::table)
 105       .left_join(
 106         community_follower::table.on(
 107           post::community_id
 108             .eq(community_follower::community_id)
 109             .and(community_follower::person_id.eq(person_id_join)),
 110         ),
 111       )
 112       .left_join(
 113         post_saved::table.on(
 114           post::id
 115             .eq(post_saved::post_id)
 116             .and(post_saved::person_id.eq(person_id_join)),
 117         ),
 118       )
 119       .left_join(
 120         post_read::table.on(
 121           post::id
 122             .eq(post_read::post_id)
 123             .and(post_read::person_id.eq(person_id_join)),
 124         ),
 125       )
 126       .left_join(
 127         person_block::table.on(
 128           post::creator_id
 129             .eq(person_block::target_id)
 130             .and(person_block::person_id.eq(person_id_join)),
 131         ),
 132       )
 133       .left_join(
 134         post_like::table.on(
 135           post::id
 136             .eq(post_like::post_id)
 137             .and(post_like::person_id.eq(person_id_join)),
 138         ),
 139       )
 140       .left_join(
 141         person_post_aggregates::table.on(
 142           post::id
 143             .eq(person_post_aggregates::post_id)
 144             .and(person_post_aggregates::person_id.eq(person_id_join)),
 145         ),
 146       )
 147       .select((
 148         post::all_columns,
 149         Person::safe_columns_tuple(),
 150         Community::safe_columns_tuple(),
 151         community_person_ban::all_columns.nullable(),
 152         post_aggregates::all_columns,
 153         community_follower::all_columns.nullable(),
 154         post_saved::all_columns.nullable(),
 155         post_read::all_columns.nullable(),
 156         person_block::all_columns.nullable(),
 157         post_like::score.nullable(),
 158         coalesce(
 159           post_aggregates::comments.nullable() - person_post_aggregates::read_comments.nullable(),
 160           post_aggregates::comments,
 161         ),
 162       ))
 163       .first::<PostViewTuple>(conn)
 164       .await?;
 165
 166     // If a person is given, then my_vote, if None, should be 0, not null
 167     // Necessary to differentiate between other person's votes
 168     let my_vote = if my_person_id.is_some() && post_like.is_none() {
 169       Some(0)
 170     } else {
 171       post_like
 172     };
 173
 174     Ok(PostView {
 175       post,
 176       creator,
 177       community,
 178       creator_banned_from_community: creator_banned_from_community.is_some(),
 179       counts,
 180       subscribed: CommunityFollower::to_subscribed_type(&follower),
 181       saved: saved.is_some(),
 182       read: read.is_some(),
 183       creator_blocked: creator_blocked.is_some(),
 184       my_vote,
 185       unread_comments,
 186     })
 187   }
 188 }
 189
 190 #[derive(TypedBuilder)]
 191 #[builder(field_defaults(default))]
 192 pub struct PostQuery<'a> {
 193   #[builder(!default)]
 194   pool: &'a DbPool,
 195   listing_type: Option<ListingType>,
 196   sort: Option<SortType>,
 197   creator_id: Option<PersonId>,
 198   community_id: Option<CommunityId>,
 199   community_actor_id: Option<DbUrl>,
 200   local_user: Option<&'a LocalUser>,
 201   search_term: Option<String>,
 202   url_search: Option<String>,
 203   saved_only: Option<bool>,
 204   page: Option<i64>,
 205   limit: Option<i64>,
 206 }
 207
 208 impl<'a> PostQuery<'a> {
 209   pub async fn list(self) -> Result<Vec<PostView>, Error> {
 210     let conn = &mut get_conn(self.pool).await?;
 211
 212     // The left join below will return None in this case
 213     let person_id_join = self.local_user.map(|l| l.person_id).unwrap_or(PersonId(-1));
 214     let local_user_id_join = self.local_user.map(|l| l.id).unwrap_or(LocalUserId(-1));
 215
 216     let mut query = post::table
 217       .inner_join(person::table)
 218       .inner_join(community::table)
 219       .left_join(
 220         community_person_ban::table.on(
 221           post::community_id
 222             .eq(community_person_ban::community_id)
 223             .and(community_person_ban::person_id.eq(post::creator_id))
 224             .and(
 225               community_person_ban::expires
 226                 .is_null()
 227                 .or(community_person_ban::expires.gt(now)),
 228             ),
 229         ),
 230       )
 231       .inner_join(post_aggregates::table)
 232       .left_join(
 233         community_follower::table.on(
 234           post::community_id
 235             .eq(community_follower::community_id)
 236             .and(community_follower::person_id.eq(person_id_join)),
 237         ),
 238       )
 239       .left_join(
 240         post_saved::table.on(
 241           post::id
 242             .eq(post_saved::post_id)
 243             .and(post_saved::person_id.eq(person_id_join)),
 244         ),
 245       )
 246       .left_join(
 247         post_read::table.on(
 248           post::id
 249             .eq(post_read::post_id)
 250             .and(post_read::person_id.eq(person_id_join)),
 251         ),
 252       )
 253       .left_join(
 254         person_block::table.on(
 255           post::creator_id
 256             .eq(person_block::target_id)
 257             .and(person_block::person_id.eq(person_id_join)),
 258         ),
 259       )
 260       .left_join(
 261         community_block::table.on(
 262           community::id
 263             .eq(community_block::community_id)
 264             .and(community_block::person_id.eq(person_id_join)),
 265         ),
 266       )
 267       .left_join(
 268         post_like::table.on(
 269           post::id
 270             .eq(post_like::post_id)
 271             .and(post_like::person_id.eq(person_id_join)),
 272         ),
 273       )
 274       .left_join(
 275         person_post_aggregates::table.on(
 276           post::id
 277             .eq(person_post_aggregates::post_id)
 278             .and(person_post_aggregates::person_id.eq(person_id_join)),
 279         ),
 280       )
 281       .left_join(
 282         local_user_language::table.on(
 283           post::language_id
 284             .eq(local_user_language::language_id)
 285             .and(local_user_language::local_user_id.eq(local_user_id_join)),
 286         ),
 287       )
 288       .select((
 289         post::all_columns,
 290         Person::safe_columns_tuple(),
 291         Community::safe_columns_tuple(),
 292         community_person_ban::all_columns.nullable(),
 293         post_aggregates::all_columns,
 294         community_follower::all_columns.nullable(),
 295         post_saved::all_columns.nullable(),
 296         post_read::all_columns.nullable(),
 297         person_block::all_columns.nullable(),
 298         post_like::score.nullable(),
 299         coalesce(
 300           post_aggregates::comments.nullable() - person_post_aggregates::read_comments.nullable(),
 301           post_aggregates::comments,
 302         ),
 303       ))
 304       .into_boxed();
 305
 306     if let Some(listing_type) = self.listing_type {
 307       match listing_type {
 308         ListingType::Subscribed => {
 309           query = query.filter(community_follower::person_id.is_not_null())
 310         }
 311         ListingType::Local => {
 312           query = query.filter(community::local.eq(true)).filter(
 313             community::hidden
 314               .eq(false)
 315               .or(community_follower::person_id.eq(person_id_join)),
 316           );
 317         }
 318         ListingType::All => {
 319           query = query.filter(
 320             community::hidden
 321               .eq(false)
 322               .or(community_follower::person_id.eq(person_id_join)),
 323           )
 324         }
 325       }
 326     }
 327
 328     if let Some(community_id) = self.community_id {
 329       query = query
 330         .filter(post::community_id.eq(community_id))
 331         .then_order_by(post_aggregates::stickied.desc());
 332     }
 333
 334     if let Some(community_actor_id) = self.community_actor_id {
 335       query = query
 336         .filter(community::actor_id.eq(community_actor_id))
 337         .then_order_by(post_aggregates::stickied.desc());
 338     }
 339
 340     if let Some(url_search) = self.url_search {
 341       query = query.filter(post::url.eq(url_search));
 342     }
 343
 344     if let Some(search_term) = self.search_term {
 345       let searcher = fuzzy_search(&search_term);
 346       query = query.filter(
 347         post::name
 348           .ilike(searcher.clone())
 349           .or(post::body.ilike(searcher)),
 350       );
 351     }
 352
 353     // If its for a specific person, show the removed / deleted
 354     if let Some(creator_id) = self.creator_id {
 355       query = query.filter(post::creator_id.eq(creator_id));
 356     }
 357
 358     if !self.local_user.map(|l| l.show_nsfw).unwrap_or(false) {
 359       query = query
 360         .filter(post::nsfw.eq(false))
 361         .filter(community::nsfw.eq(false));
 362     };
 363
 364     if !self.local_user.map(|l| l.show_bot_accounts).unwrap_or(true) {
 365       query = query.filter(person::bot_account.eq(false));
 366     };
 367
 368     if self.saved_only.unwrap_or(false) {
 369       query = query.filter(post_saved::id.is_not_null());
 370     }
 371     // Only hide the read posts, if the saved_only is false. Otherwise ppl with the hide_read
 372     // setting wont be able to see saved posts.
 373     else if !self.local_user.map(|l| l.show_read_posts).unwrap_or(true) {
 374       query = query.filter(post_read::id.is_null());
 375     }
 376
 377     if self.local_user.is_some() {
 378       // Filter out the rows with missing languages
 379       query = query.filter(local_user_language::id.is_not_null());
 380
 381       // Don't show blocked communities or persons
 382       query = query.filter(community_block::person_id.is_null());
 383       query = query.filter(person_block::person_id.is_null());
 384     }
 385
 386     query = match self.sort.unwrap_or(SortType::Hot) {
 387       SortType::Active => query
 388         .then_order_by(
 389           hot_rank(
 390             post_aggregates::score,
 391             post_aggregates::newest_comment_time_necro,
 392           )
 393           .desc(),
 394         )
 395         .then_order_by(post_aggregates::newest_comment_time_necro.desc()),
 396       SortType::Hot => query
 397         .then_order_by(hot_rank(post_aggregates::score, post_aggregates::published).desc())
 398         .then_order_by(post_aggregates::published.desc()),
 399       SortType::New => query.then_order_by(post_aggregates::published.desc()),
 400       SortType::Old => query.then_order_by(post_aggregates::published.asc()),
 401       SortType::NewComments => query.then_order_by(post_aggregates::newest_comment_time.desc()),
 402       SortType::MostComments => query
 403         .then_order_by(post_aggregates::comments.desc())
 404         .then_order_by(post_aggregates::published.desc()),
 405       SortType::TopAll => query
 406         .then_order_by(post_aggregates::score.desc())
 407         .then_order_by(post_aggregates::published.desc()),
 408       SortType::TopYear => query
 409         .filter(post_aggregates::published.gt(now - 1.years()))
 410         .then_order_by(post_aggregates::score.desc())
 411         .then_order_by(post_aggregates::published.desc()),
 412       SortType::TopMonth => query
 413         .filter(post_aggregates::published.gt(now - 1.months()))
 414         .then_order_by(post_aggregates::score.desc())
 415         .then_order_by(post_aggregates::published.desc()),
 416       SortType::TopWeek => query
 417         .filter(post_aggregates::published.gt(now - 1.weeks()))
 418         .then_order_by(post_aggregates::score.desc())
 419         .then_order_by(post_aggregates::published.desc()),
 420       SortType::TopDay => query
 421         .filter(post_aggregates::published.gt(now - 1.days()))
 422         .then_order_by(post_aggregates::score.desc())
 423         .then_order_by(post_aggregates::published.desc()),
 424     };
 425
 426     let (limit, offset) = limit_and_offset(self.page, self.limit)?;
 427
 428     query = query
 429       .limit(limit)
 430       .offset(offset)
 431       .filter(post::removed.eq(false))
 432       .filter(post::deleted.eq(false))
 433       .filter(community::removed.eq(false))
 434       .filter(community::deleted.eq(false));
 435
 436     debug!("Post View Query: {:?}", debug_query::<Pg, _>(&query));
 437
 438     let res = query.load::<PostViewTuple>(conn).await?;
 439
 440     Ok(PostView::from_tuple_to_vec(res))
 441   }
 442 }
 443
 444 impl ViewToVec for PostView {
 445   type DbTuple = PostViewTuple;
 446   fn from_tuple_to_vec(items: Vec<Self::DbTuple>) -> Vec<Self> {
 447     items
 448       .into_iter()
 449       .map(|a| Self {
 450         post: a.0,
 451         creator: a.1,
 452         community: a.2,
 453         creator_banned_from_community: a.3.is_some(),
 454         counts: a.4,
 455         subscribed: CommunityFollower::to_subscribed_type(&a.5),
 456         saved: a.6.is_some(),
 457         read: a.7.is_some(),
 458         creator_blocked: a.8.is_some(),
 459         my_vote: a.9,
 460         unread_comments: a.10,
 461       })
 462       .collect::<Vec<Self>>()
 463   }
 464 }
 465
 466 #[cfg(test)]
 467 mod tests {
 468   use crate::post_view::{PostQuery, PostView};
 469   use lemmy_db_schema::{
 470     aggregates::structs::PostAggregates,
 471     newtypes::LanguageId,
 472     source::{
 473       actor_language::LocalUserLanguage,
 474       community::{Community, CommunityInsertForm, CommunitySafe},
 475       community_block::{CommunityBlock, CommunityBlockForm},
 476       instance::Instance,
 477       language::Language,
 478       local_user::{LocalUser, LocalUserInsertForm, LocalUserUpdateForm},
 479       person::{Person, PersonInsertForm, PersonSafe},
 480       person_block::{PersonBlock, PersonBlockForm},
 481       post::{Post, PostInsertForm, PostLike, PostLikeForm},
 482     },
 483     traits::{Blockable, Crud, Likeable},
 484     utils::{build_db_pool_for_tests, DbPool},
 485     SortType,
 486     SubscribedType,
 487   };
 488   use serial_test::serial;
 489
 490   struct Data {
 491     inserted_instance: Instance,
 492     inserted_person: Person,
 493     inserted_local_user: LocalUser,
 494     inserted_blocked_person: Person,
 495     inserted_bot: Person,
 496     inserted_community: Community,
 497     inserted_post: Post,
 498   }
 499
 500   async fn init_data(pool: &DbPool) -> Data {
 501     let inserted_instance = Instance::create(pool, "my_domain.tld").await.unwrap();
 502
 503     let person_name = "tegan".to_string();
 504
 505     let new_person = PersonInsertForm::builder()
 506       .name(person_name.clone())
 507       .public_key("pubkey".to_string())
 508       .instance_id(inserted_instance.id)
 509       .build();
 510
 511     let inserted_person = Person::create(pool, &new_person).await.unwrap();
 512
 513     let local_user_form = LocalUserInsertForm::builder()
 514       .person_id(inserted_person.id)
 515       .password_encrypted(String::new())
 516       .build();
 517     let inserted_local_user = LocalUser::create(pool, &local_user_form).await.unwrap();
 518
 519     let new_bot = PersonInsertForm::builder()
 520       .name("mybot".to_string())
 521       .bot_account(Some(true))
 522       .public_key("pubkey".to_string())
 523       .instance_id(inserted_instance.id)
 524       .build();
 525
 526     let inserted_bot = Person::create(pool, &new_bot).await.unwrap();
 527
 528     let new_community = CommunityInsertForm::builder()
 529       .name("test_community_3".to_string())
 530       .title("nada".to_owned())
 531       .public_key("pubkey".to_string())
 532       .instance_id(inserted_instance.id)
 533       .build();
 534
 535     let inserted_community = Community::create(pool, &new_community).await.unwrap();
 536
 537     // Test a person block, make sure the post query doesn't include their post
 538     let blocked_person = PersonInsertForm::builder()
 539       .name(person_name)
 540       .public_key("pubkey".to_string())
 541       .instance_id(inserted_instance.id)
 542       .build();
 543
 544     let inserted_blocked_person = Person::create(pool, &blocked_person).await.unwrap();
 545
 546     let post_from_blocked_person = PostInsertForm::builder()
 547       .name("blocked_person_post".to_string())
 548       .creator_id(inserted_blocked_person.id)
 549       .community_id(inserted_community.id)
 550       .language_id(Some(LanguageId(1)))
 551       .build();
 552
 553     Post::create(pool, &post_from_blocked_person).await.unwrap();
 554
 555     // block that person
 556     let person_block = PersonBlockForm {
 557       person_id: inserted_person.id,
 558       target_id: inserted_blocked_person.id,
 559     };
 560
 561     PersonBlock::block(pool, &person_block).await.unwrap();
 562
 563     // A sample post
 564     let new_post = PostInsertForm::builder()
 565       .name("test post 3".to_string())
 566       .creator_id(inserted_person.id)
 567       .community_id(inserted_community.id)
 568       .language_id(Some(LanguageId(47)))
 569       .build();
 570
 571     let inserted_post = Post::create(pool, &new_post).await.unwrap();
 572
 573     let new_bot_post = PostInsertForm::builder()
 574       .name("test bot post".to_string())
 575       .creator_id(inserted_bot.id)
 576       .community_id(inserted_community.id)
 577       .build();
 578
 579     let _inserted_bot_post = Post::create(pool, &new_bot_post).await.unwrap();
 580
 581     Data {
 582       inserted_instance,
 583       inserted_person,
 584       inserted_local_user,
 585       inserted_blocked_person,
 586       inserted_bot,
 587       inserted_community,
 588       inserted_post,
 589     }
 590   }
 591
 592   #[tokio::test]
 593   #[serial]
 594   async fn post_listing_with_person() {
 595     let pool = &build_db_pool_for_tests().await;
 596     let data = init_data(pool).await;
 597
 598     let local_user_form = LocalUserUpdateForm::builder()
 599       .show_bot_accounts(Some(false))
 600       .build();
 601     let inserted_local_user =
 602       LocalUser::update(pool, data.inserted_local_user.id, &local_user_form)
 603         .await
 604         .unwrap();
 605
 606     let read_post_listing = PostQuery::builder()
 607       .pool(pool)
 608       .sort(Some(SortType::New))
 609       .community_id(Some(data.inserted_community.id))
 610       .local_user(Some(&inserted_local_user))
 611       .build()
 612       .list()
 613       .await
 614       .unwrap();
 615
 616     let post_listing_single_with_person =
 617       PostView::read(pool, data.inserted_post.id, Some(data.inserted_person.id))
 618         .await
 619         .unwrap();
 620
 621     let mut expected_post_listing_with_user = expected_post_view(&data, pool).await;
 622
 623     // Should be only one person, IE the bot post, and blocked should be missing
 624     assert_eq!(1, read_post_listing.len());
 625
 626     assert_eq!(expected_post_listing_with_user, read_post_listing[0]);
 627     expected_post_listing_with_user.my_vote = Some(0);
 628     assert_eq!(
 629       expected_post_listing_with_user,
 630       post_listing_single_with_person
 631     );
 632
 633     let local_user_form = LocalUserUpdateForm::builder()
 634       .show_bot_accounts(Some(true))
 635       .build();
 636     let inserted_local_user =
 637       LocalUser::update(pool, data.inserted_local_user.id, &local_user_form)
 638         .await
 639         .unwrap();
 640
 641     let post_listings_with_bots = PostQuery::builder()
 642       .pool(pool)
 643       .sort(Some(SortType::New))
 644       .community_id(Some(data.inserted_community.id))
 645       .local_user(Some(&inserted_local_user))
 646       .build()
 647       .list()
 648       .await
 649       .unwrap();
 650     // should include bot post which has "undetermined" language
 651     assert_eq!(2, post_listings_with_bots.len());
 652
 653     cleanup(data, pool).await;
 654   }
 655
 656   #[tokio::test]
 657   #[serial]
 658   async fn post_listing_no_person() {
 659     let pool = &build_db_pool_for_tests().await;
 660     let data = init_data(pool).await;
 661
 662     let read_post_listing_multiple_no_person = PostQuery::builder()
 663       .pool(pool)
 664       .sort(Some(SortType::New))
 665       .community_id(Some(data.inserted_community.id))
 666       .build()
 667       .list()
 668       .await
 669       .unwrap();
 670
 671     let read_post_listing_single_no_person = PostView::read(pool, data.inserted_post.id, None)
 672       .await
 673       .unwrap();
 674
 675     let expected_post_listing_no_person = expected_post_view(&data, pool).await;
 676
 677     // Should be 2 posts, with the bot post, and the blocked
 678     assert_eq!(3, read_post_listing_multiple_no_person.len());
 679
 680     assert_eq!(
 681       expected_post_listing_no_person,
 682       read_post_listing_multiple_no_person[1]
 683     );
 684     assert_eq!(
 685       expected_post_listing_no_person,
 686       read_post_listing_single_no_person
 687     );
 688
 689     cleanup(data, pool).await;
 690   }
 691
 692   #[tokio::test]
 693   #[serial]
 694   async fn post_listing_block_community() {
 695     let pool = &build_db_pool_for_tests().await;
 696     let data = init_data(pool).await;
 697
 698     let community_block = CommunityBlockForm {
 699       person_id: data.inserted_person.id,
 700       community_id: data.inserted_community.id,
 701     };
 702     CommunityBlock::block(pool, &community_block).await.unwrap();
 703
 704     let read_post_listings_with_person_after_block = PostQuery::builder()
 705       .pool(pool)
 706       .sort(Some(SortType::New))
 707       .community_id(Some(data.inserted_community.id))
 708       .local_user(Some(&data.inserted_local_user))
 709       .build()
 710       .list()
 711       .await
 712       .unwrap();
 713     // Should be 0 posts after the community block
 714     assert_eq!(0, read_post_listings_with_person_after_block.len());
 715
 716     CommunityBlock::unblock(pool, &community_block)
 717       .await
 718       .unwrap();
 719     cleanup(data, pool).await;
 720   }
 721
 722   #[tokio::test]
 723   #[serial]
 724   async fn post_listing_like() {
 725     let pool = &build_db_pool_for_tests().await;
 726     let data = init_data(pool).await;
 727
 728     let post_like_form = PostLikeForm {
 729       post_id: data.inserted_post.id,
 730       person_id: data.inserted_person.id,
 731       score: 1,
 732     };
 733
 734     let inserted_post_like = PostLike::like(pool, &post_like_form).await.unwrap();
 735
 736     let expected_post_like = PostLike {
 737       id: inserted_post_like.id,
 738       post_id: data.inserted_post.id,
 739       person_id: data.inserted_person.id,
 740       published: inserted_post_like.published,
 741       score: 1,
 742     };
 743     assert_eq!(expected_post_like, inserted_post_like);
 744
 745     let like_removed = PostLike::remove(pool, data.inserted_person.id, data.inserted_post.id)
 746       .await
 747       .unwrap();
 748     assert_eq!(1, like_removed);
 749     cleanup(data, pool).await;
 750   }
 751
 752   #[tokio::test]
 753   #[serial]
 754   async fn post_listing_person_language() {
 755     let pool = &build_db_pool_for_tests().await;
 756     let data = init_data(pool).await;
 757
 758     let spanish_id = Language::read_id_from_code(pool, "es").await.unwrap();
 759     let post_spanish = PostInsertForm::builder()
 760       .name("asffgdsc".to_string())
 761       .creator_id(data.inserted_person.id)
 762       .community_id(data.inserted_community.id)
 763       .language_id(Some(spanish_id))
 764       .build();
 765
 766     Post::create(pool, &post_spanish).await.unwrap();
 767
 768     let post_listings_all = PostQuery::builder()
 769       .pool(pool)
 770       .sort(Some(SortType::New))
 771       .local_user(Some(&data.inserted_local_user))
 772       .build()
 773       .list()
 774       .await
 775       .unwrap();
 776
 777     // no language filters specified, all posts should be returned
 778     assert_eq!(3, post_listings_all.len());
 779
 780     let french_id = Language::read_id_from_code(pool, "fr").await.unwrap();
 781     LocalUserLanguage::update(pool, vec![french_id], data.inserted_local_user.id)
 782       .await
 783       .unwrap();
 784
 785     let post_listing_french = PostQuery::builder()
 786       .pool(pool)
 787       .sort(Some(SortType::New))
 788       .local_user(Some(&data.inserted_local_user))
 789       .build()
 790       .list()
 791       .await
 792       .unwrap();
 793
 794     // only one french language post should be returned
 795     assert_eq!(1, post_listing_french.len());
 796     assert_eq!(french_id, post_listing_french[0].post.language_id);
 797
 798     let undetermined_id = Language::read_id_from_code(pool, "und").await.unwrap();
 799     LocalUserLanguage::update(
 800       pool,
 801       vec![french_id, undetermined_id],
 802       data.inserted_local_user.id,
 803     )
 804     .await
 805     .unwrap();
 806     let post_listings_french_und = PostQuery::builder()
 807       .pool(pool)
 808       .sort(Some(SortType::New))
 809       .local_user(Some(&data.inserted_local_user))
 810       .build()
 811       .list()
 812       .await
 813       .unwrap();
 814
 815     // french post and undetermined language post should be returned
 816     assert_eq!(2, post_listings_french_und.len());
 817     assert_eq!(
 818       undetermined_id,
 819       post_listings_french_und[0].post.language_id
 820     );
 821     assert_eq!(french_id, post_listings_french_und[1].post.language_id);
 822
 823     cleanup(data, pool).await;
 824   }
 825
 826   async fn cleanup(data: Data, pool: &DbPool) {
 827     let num_deleted = Post::delete(pool, data.inserted_post.id).await.unwrap();
 828     Community::delete(pool, data.inserted_community.id)
 829       .await
 830       .unwrap();
 831     Person::delete(pool, data.inserted_person.id).await.unwrap();
 832     Person::delete(pool, data.inserted_bot.id).await.unwrap();
 833     Person::delete(pool, data.inserted_blocked_person.id)
 834       .await
 835       .unwrap();
 836     Instance::delete(pool, data.inserted_instance.id)
 837       .await
 838       .unwrap();
 839     assert_eq!(1, num_deleted);
 840   }
 841
 842   async fn expected_post_view(data: &Data, pool: &DbPool) -> PostView {
 843     let (inserted_person, inserted_community, inserted_post) = (
 844       &data.inserted_person,
 845       &data.inserted_community,
 846       &data.inserted_post,
 847     );
 848     let agg = PostAggregates::read(pool, inserted_post.id).await.unwrap();
 849
 850     PostView {
 851       post: Post {
 852         id: inserted_post.id,
 853         name: inserted_post.name.clone(),
 854         creator_id: inserted_person.id,
 855         url: None,
 856         body: None,
 857         published: inserted_post.published,
 858         updated: None,
 859         community_id: inserted_community.id,
 860         removed: false,
 861         deleted: false,
 862         locked: false,
 863         stickied: false,
 864         nsfw: false,
 865         embed_title: None,
 866         embed_description: None,
 867         embed_video_url: None,
 868         thumbnail_url: None,
 869         ap_id: inserted_post.ap_id.clone(),
 870         local: true,
 871         language_id: LanguageId(47),
 872       },
 873       my_vote: None,
 874       unread_comments: 0,
 875       creator: PersonSafe {
 876         id: inserted_person.id,
 877         name: inserted_person.name.clone(),
 878         display_name: None,
 879         published: inserted_person.published,
 880         avatar: None,
 881         actor_id: inserted_person.actor_id.clone(),
 882         local: true,
 883         admin: false,
 884         bot_account: false,
 885         banned: false,
 886         deleted: false,
 887         bio: None,
 888         banner: None,
 889         updated: None,
 890         inbox_url: inserted_person.inbox_url.clone(),
 891         shared_inbox_url: None,
 892         matrix_user_id: None,
 893         ban_expires: None,
 894         instance_id: data.inserted_instance.id,
 895       },
 896       creator_banned_from_community: false,
 897       community: CommunitySafe {
 898         id: inserted_community.id,
 899         name: inserted_community.name.clone(),
 900         icon: None,
 901         removed: false,
 902         deleted: false,
 903         nsfw: false,
 904         actor_id: inserted_community.actor_id.clone(),
 905         local: true,
 906         title: "nada".to_owned(),
 907         description: None,
 908         updated: None,
 909         banner: None,
 910         hidden: false,
 911         posting_restricted_to_mods: false,
 912         published: inserted_community.published,
 913         instance_id: data.inserted_instance.id,
 914       },
 915       counts: PostAggregates {
 916         id: agg.id,
 917         post_id: inserted_post.id,
 918         comments: 0,
 919         score: 0,
 920         upvotes: 0,
 921         downvotes: 0,
 922         stickied: false,
 923         published: agg.published,
 924         newest_comment_time_necro: inserted_post.published,
 925         newest_comment_time: inserted_post.published,
 926       },
 927       subscribed: SubscribedType::NotSubscribed,
 928       read: false,
 929       saved: false,
 930       creator_blocked: false,
 931     }
 932   }
 933 }