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, 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},
  37     local_user::LocalUser,
  38     person::Person,
  39     person_block::PersonBlock,
  40     post::{Post, PostRead, PostSaved},
  41   },
  42   traits::JoinView,
  43   utils::{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   Person,
  53   Community,
  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     is_mod_or_admin: Option<bool>,
  72   ) -> Result<Self, Error> {
  73     let conn = &mut get_conn(pool).await?;
  74
  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 mut query = post::table
  78       .find(post_id)
  79       .inner_join(person::table)
  80       .inner_join(community::table)
  81       .left_join(
  82         community_person_ban::table.on(
  83           post::community_id
  84             .eq(community_person_ban::community_id)
  85             .and(community_person_ban::person_id.eq(post::creator_id)),
  86         ),
  87       )
  88       .inner_join(post_aggregates::table)
  89       .left_join(
  90         community_follower::table.on(
  91           post::community_id
  92             .eq(community_follower::community_id)
  93             .and(community_follower::person_id.eq(person_id_join)),
  94         ),
  95       )
  96       .left_join(
  97         post_saved::table.on(
  98           post::id
  99             .eq(post_saved::post_id)
 100             .and(post_saved::person_id.eq(person_id_join)),
 101         ),
 102       )
 103       .left_join(
 104         post_read::table.on(
 105           post::id
 106             .eq(post_read::post_id)
 107             .and(post_read::person_id.eq(person_id_join)),
 108         ),
 109       )
 110       .left_join(
 111         person_block::table.on(
 112           post::creator_id
 113             .eq(person_block::target_id)
 114             .and(person_block::person_id.eq(person_id_join)),
 115         ),
 116       )
 117       .left_join(
 118         post_like::table.on(
 119           post::id
 120             .eq(post_like::post_id)
 121             .and(post_like::person_id.eq(person_id_join)),
 122         ),
 123       )
 124       .left_join(
 125         person_post_aggregates::table.on(
 126           post::id
 127             .eq(person_post_aggregates::post_id)
 128             .and(person_post_aggregates::person_id.eq(person_id_join)),
 129         ),
 130       )
 131       .select((
 132         post::all_columns,
 133         person::all_columns,
 134         community::all_columns,
 135         community_person_ban::all_columns.nullable(),
 136         post_aggregates::all_columns,
 137         community_follower::all_columns.nullable(),
 138         post_saved::all_columns.nullable(),
 139         post_read::all_columns.nullable(),
 140         person_block::all_columns.nullable(),
 141         post_like::score.nullable(),
 142         coalesce(
 143           post_aggregates::comments.nullable() - person_post_aggregates::read_comments.nullable(),
 144           post_aggregates::comments,
 145         ),
 146       ))
 147       .into_boxed();
 148
 149     // Hide deleted and removed for non-admins or mods
 150     if !is_mod_or_admin.unwrap_or(true) {
 151       query = query
 152         .filter(community::removed.eq(false))
 153         .filter(community::deleted.eq(false));
 154     }
 155
 156     let (
 157       post,
 158       creator,
 159       community,
 160       creator_banned_from_community,
 161       counts,
 162       follower,
 163       saved,
 164       read,
 165       creator_blocked,
 166       post_like,
 167       unread_comments,
 168     ) = query.first::<PostViewTuple>(conn).await?;
 169
 170     // If a person is given, then my_vote, if None, should be 0, not null
 171     // Necessary to differentiate between other person's votes
 172     let my_vote = if my_person_id.is_some() && post_like.is_none() {
 173       Some(0)
 174     } else {
 175       post_like
 176     };
 177
 178     Ok(PostView {
 179       post,
 180       creator,
 181       community,
 182       creator_banned_from_community: creator_banned_from_community.is_some(),
 183       counts,
 184       subscribed: CommunityFollower::to_subscribed_type(&follower),
 185       saved: saved.is_some(),
 186       read: read.is_some(),
 187       creator_blocked: creator_blocked.is_some(),
 188       my_vote,
 189       unread_comments,
 190     })
 191   }
 192 }
 193
 194 #[derive(TypedBuilder)]
 195 #[builder(field_defaults(default))]
 196 pub struct PostQuery<'a> {
 197   #[builder(!default)]
 198   pool: &'a DbPool,
 199   listing_type: Option<ListingType>,
 200   sort: Option<SortType>,
 201   creator_id: Option<PersonId>,
 202   community_id: Option<CommunityId>,
 203   local_user: Option<&'a LocalUser>,
 204   search_term: Option<String>,
 205   url_search: Option<String>,
 206   saved_only: Option<bool>,
 207   /// Used to show deleted or removed posts for admins
 208   is_mod_or_admin: Option<bool>,
 209   page: Option<i64>,
 210   limit: Option<i64>,
 211 }
 212
 213 impl<'a> PostQuery<'a> {
 214   pub async fn list(self) -> Result<Vec<PostView>, Error> {
 215     let conn = &mut get_conn(self.pool).await?;
 216
 217     // The left join below will return None in this case
 218     let person_id_join = self.local_user.map(|l| l.person_id).unwrap_or(PersonId(-1));
 219     let local_user_id_join = self.local_user.map(|l| l.id).unwrap_or(LocalUserId(-1));
 220
 221     let mut query = post::table
 222       .inner_join(person::table)
 223       .inner_join(community::table)
 224       .left_join(
 225         community_person_ban::table.on(
 226           post::community_id
 227             .eq(community_person_ban::community_id)
 228             .and(community_person_ban::person_id.eq(post::creator_id)),
 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           post::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::all_columns,
 291         community::all_columns,
 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     // Hide deleted and removed for non-admins or mods
 307     // TODO This eventually needs to show posts where you are the creator
 308     if !self.is_mod_or_admin.unwrap_or(true) {
 309       query = query
 310         .filter(community::removed.eq(false))
 311         .filter(community::deleted.eq(false));
 312     }
 313
 314     if self.community_id.is_none() {
 315       query = query.then_order_by(post_aggregates::featured_local.desc());
 316     } else if let Some(community_id) = self.community_id {
 317       query = query
 318         .filter(post::community_id.eq(community_id))
 319         .then_order_by(post_aggregates::featured_community.desc());
 320     }
 321
 322     if let Some(creator_id) = self.creator_id {
 323       query = query.filter(post::creator_id.eq(creator_id));
 324     }
 325
 326     if let Some(listing_type) = self.listing_type {
 327       match listing_type {
 328         ListingType::Subscribed => {
 329           query = query.filter(community_follower::person_id.is_not_null())
 330         }
 331         ListingType::Local => {
 332           query = query.filter(community::local.eq(true)).filter(
 333             community::hidden
 334               .eq(false)
 335               .or(community_follower::person_id.eq(person_id_join)),
 336           );
 337         }
 338         ListingType::All => {
 339           query = query.filter(
 340             community::hidden
 341               .eq(false)
 342               .or(community_follower::person_id.eq(person_id_join)),
 343           )
 344         }
 345       }
 346     }
 347
 348     if let Some(url_search) = self.url_search {
 349       query = query.filter(post::url.eq(url_search));
 350     }
 351
 352     if let Some(search_term) = self.search_term {
 353       let searcher = fuzzy_search(&search_term);
 354       query = query.filter(
 355         post::name
 356           .ilike(searcher.clone())
 357           .or(post::body.ilike(searcher)),
 358       );
 359     }
 360
 361     if !self.local_user.map(|l| l.show_nsfw).unwrap_or(false) {
 362       query = query
 363         .filter(post::nsfw.eq(false))
 364         .filter(community::nsfw.eq(false));
 365     };
 366
 367     if !self.local_user.map(|l| l.show_bot_accounts).unwrap_or(true) {
 368       query = query.filter(person::bot_account.eq(false));
 369     };
 370
 371     if self.saved_only.unwrap_or(false) {
 372       query = query.filter(post_saved::post_id.is_not_null());
 373     }
 374     // Only hide the read posts, if the saved_only is false. Otherwise ppl with the hide_read
 375     // setting wont be able to see saved posts.
 376     else if !self.local_user.map(|l| l.show_read_posts).unwrap_or(true) {
 377       query = query.filter(post_read::post_id.is_null());
 378     }
 379
 380     if self.local_user.is_some() {
 381       // Filter out the rows with missing languages
 382       query = query.filter(local_user_language::language_id.is_not_null());
 383
 384       // Don't show blocked communities or persons
 385       query = query.filter(community_block::person_id.is_null());
 386       query = query.filter(person_block::person_id.is_null());
 387     }
 388
 389     query = match self.sort.unwrap_or(SortType::Hot) {
 390       SortType::Active => query.then_order_by(post_aggregates::hot_rank_active.desc()),
 391       SortType::Hot => query.then_order_by(post_aggregates::hot_rank.desc()),
 392       SortType::New => query.then_order_by(post_aggregates::published.desc()),
 393       SortType::Old => query.then_order_by(post_aggregates::published.asc()),
 394       SortType::NewComments => query.then_order_by(post_aggregates::newest_comment_time.desc()),
 395       SortType::MostComments => query
 396         .then_order_by(post_aggregates::comments.desc())
 397         .then_order_by(post_aggregates::published.desc()),
 398       SortType::TopAll => query
 399         .then_order_by(post_aggregates::score.desc())
 400         .then_order_by(post_aggregates::published.desc()),
 401       SortType::TopYear => query
 402         .filter(post_aggregates::published.gt(now - 1.years()))
 403         .then_order_by(post_aggregates::score.desc())
 404         .then_order_by(post_aggregates::published.desc()),
 405       SortType::TopMonth => query
 406         .filter(post_aggregates::published.gt(now - 1.months()))
 407         .then_order_by(post_aggregates::score.desc())
 408         .then_order_by(post_aggregates::published.desc()),
 409       SortType::TopWeek => query
 410         .filter(post_aggregates::published.gt(now - 1.weeks()))
 411         .then_order_by(post_aggregates::score.desc())
 412         .then_order_by(post_aggregates::published.desc()),
 413       SortType::TopDay => query
 414         .filter(post_aggregates::published.gt(now - 1.days()))
 415         .then_order_by(post_aggregates::score.desc())
 416         .then_order_by(post_aggregates::published.desc()),
 417     };
 418
 419     let (limit, offset) = limit_and_offset(self.page, self.limit)?;
 420
 421     query = query.limit(limit).offset(offset);
 422
 423     debug!("Post View Query: {:?}", debug_query::<Pg, _>(&query));
 424
 425     let res = query.load::<PostViewTuple>(conn).await?;
 426
 427     Ok(res.into_iter().map(PostView::from_tuple).collect())
 428   }
 429 }
 430
 431 impl JoinView for PostView {
 432   type JoinTuple = PostViewTuple;
 433   fn from_tuple(a: Self::JoinTuple) -> Self {
 434     Self {
 435       post: a.0,
 436       creator: a.1,
 437       community: a.2,
 438       creator_banned_from_community: a.3.is_some(),
 439       counts: a.4,
 440       subscribed: CommunityFollower::to_subscribed_type(&a.5),
 441       saved: a.6.is_some(),
 442       read: a.7.is_some(),
 443       creator_blocked: a.8.is_some(),
 444       my_vote: a.9,
 445       unread_comments: a.10,
 446     }
 447   }
 448 }
 449
 450 #[cfg(test)]
 451 mod tests {
 452   use crate::post_view::{PostQuery, PostView};
 453   use lemmy_db_schema::{
 454     aggregates::structs::PostAggregates,
 455     impls::actor_language::UNDETERMINED_ID,
 456     newtypes::LanguageId,
 457     source::{
 458       actor_language::LocalUserLanguage,
 459       community::{Community, CommunityInsertForm},
 460       community_block::{CommunityBlock, CommunityBlockForm},
 461       instance::Instance,
 462       language::Language,
 463       local_user::{LocalUser, LocalUserInsertForm, LocalUserUpdateForm},
 464       person::{Person, PersonInsertForm},
 465       person_block::{PersonBlock, PersonBlockForm},
 466       post::{Post, PostInsertForm, PostLike, PostLikeForm},
 467     },
 468     traits::{Blockable, Crud, Likeable},
 469     utils::{build_db_pool_for_tests, DbPool},
 470     SortType,
 471     SubscribedType,
 472   };
 473   use serial_test::serial;
 474
 475   struct Data {
 476     inserted_instance: Instance,
 477     inserted_person: Person,
 478     inserted_local_user: LocalUser,
 479     inserted_blocked_person: Person,
 480     inserted_bot: Person,
 481     inserted_community: Community,
 482     inserted_post: Post,
 483   }
 484
 485   async fn init_data(pool: &DbPool) -> Data {
 486     let inserted_instance = Instance::read_or_create(pool, "my_domain.tld".to_string())
 487       .await
 488       .unwrap();
 489
 490     let person_name = "tegan".to_string();
 491
 492     let new_person = PersonInsertForm::builder()
 493       .name(person_name.clone())
 494       .public_key("pubkey".to_string())
 495       .instance_id(inserted_instance.id)
 496       .build();
 497
 498     let inserted_person = Person::create(pool, &new_person).await.unwrap();
 499
 500     let local_user_form = LocalUserInsertForm::builder()
 501       .person_id(inserted_person.id)
 502       .password_encrypted(String::new())
 503       .build();
 504     let inserted_local_user = LocalUser::create(pool, &local_user_form).await.unwrap();
 505
 506     let new_bot = PersonInsertForm::builder()
 507       .name("mybot".to_string())
 508       .bot_account(Some(true))
 509       .public_key("pubkey".to_string())
 510       .instance_id(inserted_instance.id)
 511       .build();
 512
 513     let inserted_bot = Person::create(pool, &new_bot).await.unwrap();
 514
 515     let new_community = CommunityInsertForm::builder()
 516       .name("test_community_3".to_string())
 517       .title("nada".to_owned())
 518       .public_key("pubkey".to_string())
 519       .instance_id(inserted_instance.id)
 520       .build();
 521
 522     let inserted_community = Community::create(pool, &new_community).await.unwrap();
 523
 524     // Test a person block, make sure the post query doesn't include their post
 525     let blocked_person = PersonInsertForm::builder()
 526       .name(person_name)
 527       .public_key("pubkey".to_string())
 528       .instance_id(inserted_instance.id)
 529       .build();
 530
 531     let inserted_blocked_person = Person::create(pool, &blocked_person).await.unwrap();
 532
 533     let post_from_blocked_person = PostInsertForm::builder()
 534       .name("blocked_person_post".to_string())
 535       .creator_id(inserted_blocked_person.id)
 536       .community_id(inserted_community.id)
 537       .language_id(Some(LanguageId(1)))
 538       .build();
 539
 540     Post::create(pool, &post_from_blocked_person).await.unwrap();
 541
 542     // block that person
 543     let person_block = PersonBlockForm {
 544       person_id: inserted_person.id,
 545       target_id: inserted_blocked_person.id,
 546     };
 547
 548     PersonBlock::block(pool, &person_block).await.unwrap();
 549
 550     // A sample post
 551     let new_post = PostInsertForm::builder()
 552       .name("test post 3".to_string())
 553       .creator_id(inserted_person.id)
 554       .community_id(inserted_community.id)
 555       .language_id(Some(LanguageId(47)))
 556       .build();
 557
 558     let inserted_post = Post::create(pool, &new_post).await.unwrap();
 559
 560     let new_bot_post = PostInsertForm::builder()
 561       .name("test bot post".to_string())
 562       .creator_id(inserted_bot.id)
 563       .community_id(inserted_community.id)
 564       .build();
 565
 566     let _inserted_bot_post = Post::create(pool, &new_bot_post).await.unwrap();
 567
 568     Data {
 569       inserted_instance,
 570       inserted_person,
 571       inserted_local_user,
 572       inserted_blocked_person,
 573       inserted_bot,
 574       inserted_community,
 575       inserted_post,
 576     }
 577   }
 578
 579   #[tokio::test]
 580   #[serial]
 581   async fn post_listing_with_person() {
 582     let pool = &build_db_pool_for_tests().await;
 583     let data = init_data(pool).await;
 584
 585     let local_user_form = LocalUserUpdateForm::builder()
 586       .show_bot_accounts(Some(false))
 587       .build();
 588     let inserted_local_user =
 589       LocalUser::update(pool, data.inserted_local_user.id, &local_user_form)
 590         .await
 591         .unwrap();
 592
 593     let read_post_listing = PostQuery::builder()
 594       .pool(pool)
 595       .sort(Some(SortType::New))
 596       .community_id(Some(data.inserted_community.id))
 597       .local_user(Some(&inserted_local_user))
 598       .build()
 599       .list()
 600       .await
 601       .unwrap();
 602
 603     let post_listing_single_with_person = PostView::read(
 604       pool,
 605       data.inserted_post.id,
 606       Some(data.inserted_person.id),
 607       None,
 608     )
 609     .await
 610     .unwrap();
 611
 612     let mut expected_post_listing_with_user = expected_post_view(&data, pool).await;
 613
 614     // Should be only one person, IE the bot post, and blocked should be missing
 615     assert_eq!(1, read_post_listing.len());
 616
 617     assert_eq!(expected_post_listing_with_user, read_post_listing[0]);
 618     expected_post_listing_with_user.my_vote = Some(0);
 619     assert_eq!(
 620       expected_post_listing_with_user,
 621       post_listing_single_with_person
 622     );
 623
 624     let local_user_form = LocalUserUpdateForm::builder()
 625       .show_bot_accounts(Some(true))
 626       .build();
 627     let inserted_local_user =
 628       LocalUser::update(pool, data.inserted_local_user.id, &local_user_form)
 629         .await
 630         .unwrap();
 631
 632     let post_listings_with_bots = PostQuery::builder()
 633       .pool(pool)
 634       .sort(Some(SortType::New))
 635       .community_id(Some(data.inserted_community.id))
 636       .local_user(Some(&inserted_local_user))
 637       .build()
 638       .list()
 639       .await
 640       .unwrap();
 641     // should include bot post which has "undetermined" language
 642     assert_eq!(2, post_listings_with_bots.len());
 643
 644     cleanup(data, pool).await;
 645   }
 646
 647   #[tokio::test]
 648   #[serial]
 649   async fn post_listing_no_person() {
 650     let pool = &build_db_pool_for_tests().await;
 651     let data = init_data(pool).await;
 652
 653     let read_post_listing_multiple_no_person = PostQuery::builder()
 654       .pool(pool)
 655       .sort(Some(SortType::New))
 656       .community_id(Some(data.inserted_community.id))
 657       .build()
 658       .list()
 659       .await
 660       .unwrap();
 661
 662     let read_post_listing_single_no_person =
 663       PostView::read(pool, data.inserted_post.id, None, None)
 664         .await
 665         .unwrap();
 666
 667     let expected_post_listing_no_person = expected_post_view(&data, pool).await;
 668
 669     // Should be 2 posts, with the bot post, and the blocked
 670     assert_eq!(3, read_post_listing_multiple_no_person.len());
 671
 672     assert_eq!(
 673       expected_post_listing_no_person,
 674       read_post_listing_multiple_no_person[1]
 675     );
 676     assert_eq!(
 677       expected_post_listing_no_person,
 678       read_post_listing_single_no_person
 679     );
 680
 681     cleanup(data, pool).await;
 682   }
 683
 684   #[tokio::test]
 685   #[serial]
 686   async fn post_listing_block_community() {
 687     let pool = &build_db_pool_for_tests().await;
 688     let data = init_data(pool).await;
 689
 690     let community_block = CommunityBlockForm {
 691       person_id: data.inserted_person.id,
 692       community_id: data.inserted_community.id,
 693     };
 694     CommunityBlock::block(pool, &community_block).await.unwrap();
 695
 696     let read_post_listings_with_person_after_block = PostQuery::builder()
 697       .pool(pool)
 698       .sort(Some(SortType::New))
 699       .community_id(Some(data.inserted_community.id))
 700       .local_user(Some(&data.inserted_local_user))
 701       .build()
 702       .list()
 703       .await
 704       .unwrap();
 705     // Should be 0 posts after the community block
 706     assert_eq!(0, read_post_listings_with_person_after_block.len());
 707
 708     CommunityBlock::unblock(pool, &community_block)
 709       .await
 710       .unwrap();
 711     cleanup(data, pool).await;
 712   }
 713
 714   #[tokio::test]
 715   #[serial]
 716   async fn post_listing_like() {
 717     let pool = &build_db_pool_for_tests().await;
 718     let data = init_data(pool).await;
 719
 720     let post_like_form = PostLikeForm {
 721       post_id: data.inserted_post.id,
 722       person_id: data.inserted_person.id,
 723       score: 1,
 724     };
 725
 726     let inserted_post_like = PostLike::like(pool, &post_like_form).await.unwrap();
 727
 728     let expected_post_like = PostLike {
 729       id: inserted_post_like.id,
 730       post_id: data.inserted_post.id,
 731       person_id: data.inserted_person.id,
 732       published: inserted_post_like.published,
 733       score: 1,
 734     };
 735     assert_eq!(expected_post_like, inserted_post_like);
 736
 737     let like_removed = PostLike::remove(pool, data.inserted_person.id, data.inserted_post.id)
 738       .await
 739       .unwrap();
 740     assert_eq!(1, like_removed);
 741     cleanup(data, pool).await;
 742   }
 743
 744   #[tokio::test]
 745   #[serial]
 746   async fn post_listing_person_language() {
 747     let pool = &build_db_pool_for_tests().await;
 748     let data = init_data(pool).await;
 749
 750     let spanish_id = Language::read_id_from_code(pool, Some("es"))
 751       .await
 752       .unwrap()
 753       .unwrap();
 754     let post_spanish = PostInsertForm::builder()
 755       .name("asffgdsc".to_string())
 756       .creator_id(data.inserted_person.id)
 757       .community_id(data.inserted_community.id)
 758       .language_id(Some(spanish_id))
 759       .build();
 760
 761     Post::create(pool, &post_spanish).await.unwrap();
 762
 763     let post_listings_all = PostQuery::builder()
 764       .pool(pool)
 765       .sort(Some(SortType::New))
 766       .local_user(Some(&data.inserted_local_user))
 767       .build()
 768       .list()
 769       .await
 770       .unwrap();
 771
 772     // no language filters specified, all posts should be returned
 773     assert_eq!(3, post_listings_all.len());
 774
 775     let french_id = Language::read_id_from_code(pool, Some("fr"))
 776       .await
 777       .unwrap()
 778       .unwrap();
 779     LocalUserLanguage::update(pool, vec![french_id], data.inserted_local_user.id)
 780       .await
 781       .unwrap();
 782
 783     let post_listing_french = PostQuery::builder()
 784       .pool(pool)
 785       .sort(Some(SortType::New))
 786       .local_user(Some(&data.inserted_local_user))
 787       .build()
 788       .list()
 789       .await
 790       .unwrap();
 791
 792     // only one post in french and one undetermined should be returned
 793     assert_eq!(2, post_listing_french.len());
 794     assert!(post_listing_french
 795       .iter()
 796       .any(|p| p.post.language_id == french_id));
 797
 798     LocalUserLanguage::update(
 799       pool,
 800       vec![french_id, UNDETERMINED_ID],
 801       data.inserted_local_user.id,
 802     )
 803     .await
 804     .unwrap();
 805     let post_listings_french_und = PostQuery::builder()
 806       .pool(pool)
 807       .sort(Some(SortType::New))
 808       .local_user(Some(&data.inserted_local_user))
 809       .build()
 810       .list()
 811       .await
 812       .unwrap();
 813
 814     // french post and undetermined language post should be returned
 815     assert_eq!(2, post_listings_french_und.len());
 816     assert_eq!(
 817       UNDETERMINED_ID,
 818       post_listings_french_und[0].post.language_id
 819     );
 820     assert_eq!(french_id, post_listings_french_und[1].post.language_id);
 821
 822     cleanup(data, pool).await;
 823   }
 824
 825   async fn cleanup(data: Data, pool: &DbPool) {
 826     let num_deleted = Post::delete(pool, data.inserted_post.id).await.unwrap();
 827     Community::delete(pool, data.inserted_community.id)
 828       .await
 829       .unwrap();
 830     Person::delete(pool, data.inserted_person.id).await.unwrap();
 831     Person::delete(pool, data.inserted_bot.id).await.unwrap();
 832     Person::delete(pool, data.inserted_blocked_person.id)
 833       .await
 834       .unwrap();
 835     Instance::delete(pool, data.inserted_instance.id)
 836       .await
 837       .unwrap();
 838     assert_eq!(1, num_deleted);
 839   }
 840
 841   async fn expected_post_view(data: &Data, pool: &DbPool) -> PostView {
 842     let (inserted_person, inserted_community, inserted_post) = (
 843       &data.inserted_person,
 844       &data.inserted_community,
 845       &data.inserted_post,
 846     );
 847     let agg = PostAggregates::read(pool, inserted_post.id).await.unwrap();
 848
 849     PostView {
 850       post: Post {
 851         id: inserted_post.id,
 852         name: inserted_post.name.clone(),
 853         creator_id: inserted_person.id,
 854         url: None,
 855         body: None,
 856         published: inserted_post.published,
 857         updated: None,
 858         community_id: inserted_community.id,
 859         removed: false,
 860         deleted: false,
 861         locked: false,
 862         nsfw: false,
 863         embed_title: None,
 864         embed_description: None,
 865         embed_video_url: None,
 866         thumbnail_url: None,
 867         ap_id: inserted_post.ap_id.clone(),
 868         local: true,
 869         language_id: LanguageId(47),
 870         featured_community: false,
 871         featured_local: false,
 872       },
 873       my_vote: None,
 874       unread_comments: 0,
 875       creator: Person {
 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         private_key: inserted_person.private_key.clone(),
 896         public_key: inserted_person.public_key.clone(),
 897         last_refreshed_at: inserted_person.last_refreshed_at,
 898       },
 899       creator_banned_from_community: false,
 900       community: Community {
 901         id: inserted_community.id,
 902         name: inserted_community.name.clone(),
 903         icon: None,
 904         removed: false,
 905         deleted: false,
 906         nsfw: false,
 907         actor_id: inserted_community.actor_id.clone(),
 908         local: true,
 909         title: "nada".to_owned(),
 910         description: None,
 911         updated: None,
 912         banner: None,
 913         hidden: false,
 914         posting_restricted_to_mods: false,
 915         published: inserted_community.published,
 916         instance_id: data.inserted_instance.id,
 917         private_key: inserted_community.private_key.clone(),
 918         public_key: inserted_community.public_key.clone(),
 919         last_refreshed_at: inserted_community.last_refreshed_at,
 920         followers_url: inserted_community.followers_url.clone(),
 921         inbox_url: inserted_community.inbox_url.clone(),
 922         shared_inbox_url: inserted_community.shared_inbox_url.clone(),
 923         moderators_url: inserted_community.moderators_url.clone(),
 924         featured_url: inserted_community.featured_url.clone(),
 925       },
 926       counts: PostAggregates {
 927         id: agg.id,
 928         post_id: inserted_post.id,
 929         comments: 0,
 930         score: 0,
 931         upvotes: 0,
 932         downvotes: 0,
 933         published: agg.published,
 934         newest_comment_time_necro: inserted_post.published,
 935         newest_comment_time: inserted_post.published,
 936         featured_community: false,
 937         featured_local: false,
 938         hot_rank: 1728,
 939         hot_rank_active: 1728,
 940       },
 941       subscribed: SubscribedType::NotSubscribed,
 942       read: false,
 943       saved: false,
 944       creator_blocked: false,
 945     }
 946   }
 947 }