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     if self.community_id.is_none() && self.community_actor_id.is_none() {
 328       query = query.then_order_by(post_aggregates::featured_local.desc());
 329     } else if let Some(community_id) = self.community_id {
 330       query = query
 331         .filter(post::community_id.eq(community_id))
 332         .then_order_by(post_aggregates::featured_community.desc());
 333     } else if let Some(community_actor_id) = self.community_actor_id {
 334       query = query
 335         .filter(community::actor_id.eq(community_actor_id))
 336         .then_order_by(post_aggregates::featured_community.desc());
 337     }
 338
 339     if let Some(url_search) = self.url_search {
 340       query = query.filter(post::url.eq(url_search));
 341     }
 342
 343     if let Some(search_term) = self.search_term {
 344       let searcher = fuzzy_search(&search_term);
 345       query = query.filter(
 346         post::name
 347           .ilike(searcher.clone())
 348           .or(post::body.ilike(searcher)),
 349       );
 350     }
 351
 352     // If its for a specific person, show the removed / deleted
 353     if let Some(creator_id) = self.creator_id {
 354       query = query.filter(post::creator_id.eq(creator_id));
 355     }
 356
 357     if !self.local_user.map(|l| l.show_nsfw).unwrap_or(false) {
 358       query = query
 359         .filter(post::nsfw.eq(false))
 360         .filter(community::nsfw.eq(false));
 361     };
 362
 363     if !self.local_user.map(|l| l.show_bot_accounts).unwrap_or(true) {
 364       query = query.filter(person::bot_account.eq(false));
 365     };
 366
 367     if self.saved_only.unwrap_or(false) {
 368       query = query.filter(post_saved::post_id.is_not_null());
 369     }
 370     // Only hide the read posts, if the saved_only is false. Otherwise ppl with the hide_read
 371     // setting wont be able to see saved posts.
 372     else if !self.local_user.map(|l| l.show_read_posts).unwrap_or(true) {
 373       query = query.filter(post_read::post_id.is_null());
 374     }
 375
 376     if self.local_user.is_some() {
 377       // Filter out the rows with missing languages
 378       query = query.filter(local_user_language::language_id.is_not_null());
 379
 380       // Don't show blocked communities or persons
 381       query = query.filter(community_block::person_id.is_null());
 382       query = query.filter(person_block::person_id.is_null());
 383     }
 384
 385     query = match self.sort.unwrap_or(SortType::Hot) {
 386       SortType::Active => query
 387         .then_order_by(
 388           hot_rank(
 389             post_aggregates::score,
 390             post_aggregates::newest_comment_time_necro,
 391           )
 392           .desc(),
 393         )
 394         .then_order_by(post_aggregates::newest_comment_time_necro.desc()),
 395       SortType::Hot => query
 396         .then_order_by(hot_rank(post_aggregates::score, post_aggregates::published).desc())
 397         .then_order_by(post_aggregates::published.desc()),
 398       SortType::New => query.then_order_by(post_aggregates::published.desc()),
 399       SortType::Old => query.then_order_by(post_aggregates::published.asc()),
 400       SortType::NewComments => query.then_order_by(post_aggregates::newest_comment_time.desc()),
 401       SortType::MostComments => query
 402         .then_order_by(post_aggregates::comments.desc())
 403         .then_order_by(post_aggregates::published.desc()),
 404       SortType::TopAll => query
 405         .then_order_by(post_aggregates::score.desc())
 406         .then_order_by(post_aggregates::published.desc()),
 407       SortType::TopYear => query
 408         .filter(post_aggregates::published.gt(now - 1.years()))
 409         .then_order_by(post_aggregates::score.desc())
 410         .then_order_by(post_aggregates::published.desc()),
 411       SortType::TopMonth => query
 412         .filter(post_aggregates::published.gt(now - 1.months()))
 413         .then_order_by(post_aggregates::score.desc())
 414         .then_order_by(post_aggregates::published.desc()),
 415       SortType::TopWeek => query
 416         .filter(post_aggregates::published.gt(now - 1.weeks()))
 417         .then_order_by(post_aggregates::score.desc())
 418         .then_order_by(post_aggregates::published.desc()),
 419       SortType::TopDay => query
 420         .filter(post_aggregates::published.gt(now - 1.days()))
 421         .then_order_by(post_aggregates::score.desc())
 422         .then_order_by(post_aggregates::published.desc()),
 423     };
 424
 425     let (limit, offset) = limit_and_offset(self.page, self.limit)?;
 426
 427     query = query
 428       .limit(limit)
 429       .offset(offset)
 430       .filter(post::removed.eq(false))
 431       .filter(post::deleted.eq(false))
 432       .filter(community::removed.eq(false))
 433       .filter(community::deleted.eq(false));
 434
 435     debug!("Post View Query: {:?}", debug_query::<Pg, _>(&query));
 436
 437     let res = query.load::<PostViewTuple>(conn).await?;
 438
 439     Ok(PostView::from_tuple_to_vec(res))
 440   }
 441 }
 442
 443 impl ViewToVec for PostView {
 444   type DbTuple = PostViewTuple;
 445   fn from_tuple_to_vec(items: Vec<Self::DbTuple>) -> Vec<Self> {
 446     items
 447       .into_iter()
 448       .map(|a| Self {
 449         post: a.0,
 450         creator: a.1,
 451         community: a.2,
 452         creator_banned_from_community: a.3.is_some(),
 453         counts: a.4,
 454         subscribed: CommunityFollower::to_subscribed_type(&a.5),
 455         saved: a.6.is_some(),
 456         read: a.7.is_some(),
 457         creator_blocked: a.8.is_some(),
 458         my_vote: a.9,
 459         unread_comments: a.10,
 460       })
 461       .collect::<Vec<Self>>()
 462   }
 463 }
 464
 465 #[cfg(test)]
 466 mod tests {
 467   use crate::post_view::{PostQuery, PostView};
 468   use lemmy_db_schema::{
 469     aggregates::structs::PostAggregates,
 470     impls::actor_language::UNDETERMINED_ID,
 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::read_or_create(pool, "my_domain.tld".to_string())
 502       .await
 503       .unwrap();
 504
 505     let person_name = "tegan".to_string();
 506
 507     let new_person = PersonInsertForm::builder()
 508       .name(person_name.clone())
 509       .public_key("pubkey".to_string())
 510       .instance_id(inserted_instance.id)
 511       .build();
 512
 513     let inserted_person = Person::create(pool, &new_person).await.unwrap();
 514
 515     let local_user_form = LocalUserInsertForm::builder()
 516       .person_id(inserted_person.id)
 517       .password_encrypted(String::new())
 518       .build();
 519     let inserted_local_user = LocalUser::create(pool, &local_user_form).await.unwrap();
 520
 521     let new_bot = PersonInsertForm::builder()
 522       .name("mybot".to_string())
 523       .bot_account(Some(true))
 524       .public_key("pubkey".to_string())
 525       .instance_id(inserted_instance.id)
 526       .build();
 527
 528     let inserted_bot = Person::create(pool, &new_bot).await.unwrap();
 529
 530     let new_community = CommunityInsertForm::builder()
 531       .name("test_community_3".to_string())
 532       .title("nada".to_owned())
 533       .public_key("pubkey".to_string())
 534       .instance_id(inserted_instance.id)
 535       .build();
 536
 537     let inserted_community = Community::create(pool, &new_community).await.unwrap();
 538
 539     // Test a person block, make sure the post query doesn't include their post
 540     let blocked_person = PersonInsertForm::builder()
 541       .name(person_name)
 542       .public_key("pubkey".to_string())
 543       .instance_id(inserted_instance.id)
 544       .build();
 545
 546     let inserted_blocked_person = Person::create(pool, &blocked_person).await.unwrap();
 547
 548     let post_from_blocked_person = PostInsertForm::builder()
 549       .name("blocked_person_post".to_string())
 550       .creator_id(inserted_blocked_person.id)
 551       .community_id(inserted_community.id)
 552       .language_id(Some(LanguageId(1)))
 553       .build();
 554
 555     Post::create(pool, &post_from_blocked_person).await.unwrap();
 556
 557     // block that person
 558     let person_block = PersonBlockForm {
 559       person_id: inserted_person.id,
 560       target_id: inserted_blocked_person.id,
 561     };
 562
 563     PersonBlock::block(pool, &person_block).await.unwrap();
 564
 565     // A sample post
 566     let new_post = PostInsertForm::builder()
 567       .name("test post 3".to_string())
 568       .creator_id(inserted_person.id)
 569       .community_id(inserted_community.id)
 570       .language_id(Some(LanguageId(47)))
 571       .build();
 572
 573     let inserted_post = Post::create(pool, &new_post).await.unwrap();
 574
 575     let new_bot_post = PostInsertForm::builder()
 576       .name("test bot post".to_string())
 577       .creator_id(inserted_bot.id)
 578       .community_id(inserted_community.id)
 579       .build();
 580
 581     let _inserted_bot_post = Post::create(pool, &new_bot_post).await.unwrap();
 582
 583     Data {
 584       inserted_instance,
 585       inserted_person,
 586       inserted_local_user,
 587       inserted_blocked_person,
 588       inserted_bot,
 589       inserted_community,
 590       inserted_post,
 591     }
 592   }
 593
 594   #[tokio::test]
 595   #[serial]
 596   async fn post_listing_with_person() {
 597     let pool = &build_db_pool_for_tests().await;
 598     let data = init_data(pool).await;
 599
 600     let local_user_form = LocalUserUpdateForm::builder()
 601       .show_bot_accounts(Some(false))
 602       .build();
 603     let inserted_local_user =
 604       LocalUser::update(pool, data.inserted_local_user.id, &local_user_form)
 605         .await
 606         .unwrap();
 607
 608     let read_post_listing = PostQuery::builder()
 609       .pool(pool)
 610       .sort(Some(SortType::New))
 611       .community_id(Some(data.inserted_community.id))
 612       .local_user(Some(&inserted_local_user))
 613       .build()
 614       .list()
 615       .await
 616       .unwrap();
 617
 618     let post_listing_single_with_person =
 619       PostView::read(pool, data.inserted_post.id, Some(data.inserted_person.id))
 620         .await
 621         .unwrap();
 622
 623     let mut expected_post_listing_with_user = expected_post_view(&data, pool).await;
 624
 625     // Should be only one person, IE the bot post, and blocked should be missing
 626     assert_eq!(1, read_post_listing.len());
 627
 628     assert_eq!(expected_post_listing_with_user, read_post_listing[0]);
 629     expected_post_listing_with_user.my_vote = Some(0);
 630     assert_eq!(
 631       expected_post_listing_with_user,
 632       post_listing_single_with_person
 633     );
 634
 635     let local_user_form = LocalUserUpdateForm::builder()
 636       .show_bot_accounts(Some(true))
 637       .build();
 638     let inserted_local_user =
 639       LocalUser::update(pool, data.inserted_local_user.id, &local_user_form)
 640         .await
 641         .unwrap();
 642
 643     let post_listings_with_bots = PostQuery::builder()
 644       .pool(pool)
 645       .sort(Some(SortType::New))
 646       .community_id(Some(data.inserted_community.id))
 647       .local_user(Some(&inserted_local_user))
 648       .build()
 649       .list()
 650       .await
 651       .unwrap();
 652     // should include bot post which has "undetermined" language
 653     assert_eq!(2, post_listings_with_bots.len());
 654
 655     cleanup(data, pool).await;
 656   }
 657
 658   #[tokio::test]
 659   #[serial]
 660   async fn post_listing_no_person() {
 661     let pool = &build_db_pool_for_tests().await;
 662     let data = init_data(pool).await;
 663
 664     let read_post_listing_multiple_no_person = PostQuery::builder()
 665       .pool(pool)
 666       .sort(Some(SortType::New))
 667       .community_id(Some(data.inserted_community.id))
 668       .build()
 669       .list()
 670       .await
 671       .unwrap();
 672
 673     let read_post_listing_single_no_person = PostView::read(pool, data.inserted_post.id, None)
 674       .await
 675       .unwrap();
 676
 677     let expected_post_listing_no_person = expected_post_view(&data, pool).await;
 678
 679     // Should be 2 posts, with the bot post, and the blocked
 680     assert_eq!(3, read_post_listing_multiple_no_person.len());
 681
 682     assert_eq!(
 683       expected_post_listing_no_person,
 684       read_post_listing_multiple_no_person[1]
 685     );
 686     assert_eq!(
 687       expected_post_listing_no_person,
 688       read_post_listing_single_no_person
 689     );
 690
 691     cleanup(data, pool).await;
 692   }
 693
 694   #[tokio::test]
 695   #[serial]
 696   async fn post_listing_block_community() {
 697     let pool = &build_db_pool_for_tests().await;
 698     let data = init_data(pool).await;
 699
 700     let community_block = CommunityBlockForm {
 701       person_id: data.inserted_person.id,
 702       community_id: data.inserted_community.id,
 703     };
 704     CommunityBlock::block(pool, &community_block).await.unwrap();
 705
 706     let read_post_listings_with_person_after_block = PostQuery::builder()
 707       .pool(pool)
 708       .sort(Some(SortType::New))
 709       .community_id(Some(data.inserted_community.id))
 710       .local_user(Some(&data.inserted_local_user))
 711       .build()
 712       .list()
 713       .await
 714       .unwrap();
 715     // Should be 0 posts after the community block
 716     assert_eq!(0, read_post_listings_with_person_after_block.len());
 717
 718     CommunityBlock::unblock(pool, &community_block)
 719       .await
 720       .unwrap();
 721     cleanup(data, pool).await;
 722   }
 723
 724   #[tokio::test]
 725   #[serial]
 726   async fn post_listing_like() {
 727     let pool = &build_db_pool_for_tests().await;
 728     let data = init_data(pool).await;
 729
 730     let post_like_form = PostLikeForm {
 731       post_id: data.inserted_post.id,
 732       person_id: data.inserted_person.id,
 733       score: 1,
 734     };
 735
 736     let inserted_post_like = PostLike::like(pool, &post_like_form).await.unwrap();
 737
 738     let expected_post_like = PostLike {
 739       id: inserted_post_like.id,
 740       post_id: data.inserted_post.id,
 741       person_id: data.inserted_person.id,
 742       published: inserted_post_like.published,
 743       score: 1,
 744     };
 745     assert_eq!(expected_post_like, inserted_post_like);
 746
 747     let like_removed = PostLike::remove(pool, data.inserted_person.id, data.inserted_post.id)
 748       .await
 749       .unwrap();
 750     assert_eq!(1, like_removed);
 751     cleanup(data, pool).await;
 752   }
 753
 754   #[tokio::test]
 755   #[serial]
 756   async fn post_listing_person_language() {
 757     let pool = &build_db_pool_for_tests().await;
 758     let data = init_data(pool).await;
 759
 760     let spanish_id = Language::read_id_from_code(pool, Some("es"))
 761       .await
 762       .unwrap()
 763       .unwrap();
 764     let post_spanish = PostInsertForm::builder()
 765       .name("asffgdsc".to_string())
 766       .creator_id(data.inserted_person.id)
 767       .community_id(data.inserted_community.id)
 768       .language_id(Some(spanish_id))
 769       .build();
 770
 771     Post::create(pool, &post_spanish).await.unwrap();
 772
 773     let post_listings_all = PostQuery::builder()
 774       .pool(pool)
 775       .sort(Some(SortType::New))
 776       .local_user(Some(&data.inserted_local_user))
 777       .build()
 778       .list()
 779       .await
 780       .unwrap();
 781
 782     // no language filters specified, all posts should be returned
 783     assert_eq!(3, post_listings_all.len());
 784
 785     let french_id = Language::read_id_from_code(pool, Some("fr"))
 786       .await
 787       .unwrap()
 788       .unwrap();
 789     LocalUserLanguage::update(pool, vec![french_id], data.inserted_local_user.id)
 790       .await
 791       .unwrap();
 792
 793     let post_listing_french = PostQuery::builder()
 794       .pool(pool)
 795       .sort(Some(SortType::New))
 796       .local_user(Some(&data.inserted_local_user))
 797       .build()
 798       .list()
 799       .await
 800       .unwrap();
 801
 802     // only one french language post should be returned
 803     assert_eq!(1, post_listing_french.len());
 804     assert_eq!(french_id, post_listing_french[0].post.language_id);
 805
 806     LocalUserLanguage::update(
 807       pool,
 808       vec![french_id, UNDETERMINED_ID],
 809       data.inserted_local_user.id,
 810     )
 811     .await
 812     .unwrap();
 813     let post_listings_french_und = PostQuery::builder()
 814       .pool(pool)
 815       .sort(Some(SortType::New))
 816       .local_user(Some(&data.inserted_local_user))
 817       .build()
 818       .list()
 819       .await
 820       .unwrap();
 821
 822     // french post and undetermined language post should be returned
 823     assert_eq!(2, post_listings_french_und.len());
 824     assert_eq!(
 825       UNDETERMINED_ID,
 826       post_listings_french_und[0].post.language_id
 827     );
 828     assert_eq!(french_id, post_listings_french_und[1].post.language_id);
 829
 830     cleanup(data, pool).await;
 831   }
 832
 833   async fn cleanup(data: Data, pool: &DbPool) {
 834     let num_deleted = Post::delete(pool, data.inserted_post.id).await.unwrap();
 835     Community::delete(pool, data.inserted_community.id)
 836       .await
 837       .unwrap();
 838     Person::delete(pool, data.inserted_person.id).await.unwrap();
 839     Person::delete(pool, data.inserted_bot.id).await.unwrap();
 840     Person::delete(pool, data.inserted_blocked_person.id)
 841       .await
 842       .unwrap();
 843     Instance::delete(pool, data.inserted_instance.id)
 844       .await
 845       .unwrap();
 846     assert_eq!(1, num_deleted);
 847   }
 848
 849   async fn expected_post_view(data: &Data, pool: &DbPool) -> PostView {
 850     let (inserted_person, inserted_community, inserted_post) = (
 851       &data.inserted_person,
 852       &data.inserted_community,
 853       &data.inserted_post,
 854     );
 855     let agg = PostAggregates::read(pool, inserted_post.id).await.unwrap();
 856
 857     PostView {
 858       post: Post {
 859         id: inserted_post.id,
 860         name: inserted_post.name.clone(),
 861         creator_id: inserted_person.id,
 862         url: None,
 863         body: None,
 864         published: inserted_post.published,
 865         updated: None,
 866         community_id: inserted_community.id,
 867         removed: false,
 868         deleted: false,
 869         locked: false,
 870         nsfw: false,
 871         embed_title: None,
 872         embed_description: None,
 873         embed_video_url: None,
 874         thumbnail_url: None,
 875         ap_id: inserted_post.ap_id.clone(),
 876         local: true,
 877         language_id: LanguageId(47),
 878         featured_community: false,
 879         featured_local: false,
 880       },
 881       my_vote: None,
 882       unread_comments: 0,
 883       creator: PersonSafe {
 884         id: inserted_person.id,
 885         name: inserted_person.name.clone(),
 886         display_name: None,
 887         published: inserted_person.published,
 888         avatar: None,
 889         actor_id: inserted_person.actor_id.clone(),
 890         local: true,
 891         admin: false,
 892         bot_account: false,
 893         banned: false,
 894         deleted: false,
 895         bio: None,
 896         banner: None,
 897         updated: None,
 898         inbox_url: inserted_person.inbox_url.clone(),
 899         shared_inbox_url: None,
 900         matrix_user_id: None,
 901         ban_expires: None,
 902         instance_id: data.inserted_instance.id,
 903       },
 904       creator_banned_from_community: false,
 905       community: CommunitySafe {
 906         id: inserted_community.id,
 907         name: inserted_community.name.clone(),
 908         icon: None,
 909         removed: false,
 910         deleted: false,
 911         nsfw: false,
 912         actor_id: inserted_community.actor_id.clone(),
 913         local: true,
 914         title: "nada".to_owned(),
 915         description: None,
 916         updated: None,
 917         banner: None,
 918         hidden: false,
 919         posting_restricted_to_mods: false,
 920         published: inserted_community.published,
 921         instance_id: data.inserted_instance.id,
 922       },
 923       counts: PostAggregates {
 924         id: agg.id,
 925         post_id: inserted_post.id,
 926         comments: 0,
 927         score: 0,
 928         upvotes: 0,
 929         downvotes: 0,
 930         published: agg.published,
 931         newest_comment_time_necro: inserted_post.published,
 932         newest_comment_time: inserted_post.published,
 933         featured_community: false,
 934         featured_local: false,
 935       },
 936       subscribed: SubscribedType::NotSubscribed,
 937       read: false,
 938       saved: false,
 939       creator_blocked: false,
 940     }
 941   }
 942 }