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::{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   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
 391         .then_order_by(
 392           hot_rank(
 393             post_aggregates::score,
 394             post_aggregates::newest_comment_time_necro,
 395           )
 396           .desc(),
 397         )
 398         .then_order_by(post_aggregates::newest_comment_time_necro.desc()),
 399       SortType::Hot => query
 400         .then_order_by(hot_rank(post_aggregates::score, post_aggregates::published).desc())
 401         .then_order_by(post_aggregates::published.desc()),
 402       SortType::New => query.then_order_by(post_aggregates::published.desc()),
 403       SortType::Old => query.then_order_by(post_aggregates::published.asc()),
 404       SortType::NewComments => query.then_order_by(post_aggregates::newest_comment_time.desc()),
 405       SortType::MostComments => query
 406         .then_order_by(post_aggregates::comments.desc())
 407         .then_order_by(post_aggregates::published.desc()),
 408       SortType::TopAll => query
 409         .then_order_by(post_aggregates::score.desc())
 410         .then_order_by(post_aggregates::published.desc()),
 411       SortType::TopYear => query
 412         .filter(post_aggregates::published.gt(now - 1.years()))
 413         .then_order_by(post_aggregates::score.desc())
 414         .then_order_by(post_aggregates::published.desc()),
 415       SortType::TopMonth => query
 416         .filter(post_aggregates::published.gt(now - 1.months()))
 417         .then_order_by(post_aggregates::score.desc())
 418         .then_order_by(post_aggregates::published.desc()),
 419       SortType::TopWeek => query
 420         .filter(post_aggregates::published.gt(now - 1.weeks()))
 421         .then_order_by(post_aggregates::score.desc())
 422         .then_order_by(post_aggregates::published.desc()),
 423       SortType::TopDay => query
 424         .filter(post_aggregates::published.gt(now - 1.days()))
 425         .then_order_by(post_aggregates::score.desc())
 426         .then_order_by(post_aggregates::published.desc()),
 427     };
 428
 429     let (limit, offset) = limit_and_offset(self.page, self.limit)?;
 430
 431     query = query.limit(limit).offset(offset);
 432
 433     debug!("Post View Query: {:?}", debug_query::<Pg, _>(&query));
 434
 435     let res = query.load::<PostViewTuple>(conn).await?;
 436
 437     Ok(res.into_iter().map(PostView::from_tuple).collect())
 438   }
 439 }
 440
 441 impl JoinView for PostView {
 442   type JoinTuple = PostViewTuple;
 443   fn from_tuple(a: Self::JoinTuple) -> Self {
 444     Self {
 445       post: a.0,
 446       creator: a.1,
 447       community: a.2,
 448       creator_banned_from_community: a.3.is_some(),
 449       counts: a.4,
 450       subscribed: CommunityFollower::to_subscribed_type(&a.5),
 451       saved: a.6.is_some(),
 452       read: a.7.is_some(),
 453       creator_blocked: a.8.is_some(),
 454       my_vote: a.9,
 455       unread_comments: a.10,
 456     }
 457   }
 458 }
 459
 460 #[cfg(test)]
 461 mod tests {
 462   use crate::post_view::{PostQuery, PostView};
 463   use lemmy_db_schema::{
 464     aggregates::structs::PostAggregates,
 465     impls::actor_language::UNDETERMINED_ID,
 466     newtypes::LanguageId,
 467     source::{
 468       actor_language::LocalUserLanguage,
 469       community::{Community, CommunityInsertForm},
 470       community_block::{CommunityBlock, CommunityBlockForm},
 471       instance::Instance,
 472       language::Language,
 473       local_user::{LocalUser, LocalUserInsertForm, LocalUserUpdateForm},
 474       person::{Person, PersonInsertForm},
 475       person_block::{PersonBlock, PersonBlockForm},
 476       post::{Post, PostInsertForm, PostLike, PostLikeForm},
 477     },
 478     traits::{Blockable, Crud, Likeable},
 479     utils::{build_db_pool_for_tests, DbPool},
 480     SortType,
 481     SubscribedType,
 482   };
 483   use serial_test::serial;
 484
 485   struct Data {
 486     inserted_instance: Instance,
 487     inserted_person: Person,
 488     inserted_local_user: LocalUser,
 489     inserted_blocked_person: Person,
 490     inserted_bot: Person,
 491     inserted_community: Community,
 492     inserted_post: Post,
 493   }
 494
 495   async fn init_data(pool: &DbPool) -> Data {
 496     let inserted_instance = Instance::read_or_create(pool, "my_domain.tld".to_string())
 497       .await
 498       .unwrap();
 499
 500     let person_name = "tegan".to_string();
 501
 502     let new_person = PersonInsertForm::builder()
 503       .name(person_name.clone())
 504       .public_key("pubkey".to_string())
 505       .instance_id(inserted_instance.id)
 506       .build();
 507
 508     let inserted_person = Person::create(pool, &new_person).await.unwrap();
 509
 510     let local_user_form = LocalUserInsertForm::builder()
 511       .person_id(inserted_person.id)
 512       .password_encrypted(String::new())
 513       .build();
 514     let inserted_local_user = LocalUser::create(pool, &local_user_form).await.unwrap();
 515
 516     let new_bot = PersonInsertForm::builder()
 517       .name("mybot".to_string())
 518       .bot_account(Some(true))
 519       .public_key("pubkey".to_string())
 520       .instance_id(inserted_instance.id)
 521       .build();
 522
 523     let inserted_bot = Person::create(pool, &new_bot).await.unwrap();
 524
 525     let new_community = CommunityInsertForm::builder()
 526       .name("test_community_3".to_string())
 527       .title("nada".to_owned())
 528       .public_key("pubkey".to_string())
 529       .instance_id(inserted_instance.id)
 530       .build();
 531
 532     let inserted_community = Community::create(pool, &new_community).await.unwrap();
 533
 534     // Test a person block, make sure the post query doesn't include their post
 535     let blocked_person = PersonInsertForm::builder()
 536       .name(person_name)
 537       .public_key("pubkey".to_string())
 538       .instance_id(inserted_instance.id)
 539       .build();
 540
 541     let inserted_blocked_person = Person::create(pool, &blocked_person).await.unwrap();
 542
 543     let post_from_blocked_person = PostInsertForm::builder()
 544       .name("blocked_person_post".to_string())
 545       .creator_id(inserted_blocked_person.id)
 546       .community_id(inserted_community.id)
 547       .language_id(Some(LanguageId(1)))
 548       .build();
 549
 550     Post::create(pool, &post_from_blocked_person).await.unwrap();
 551
 552     // block that person
 553     let person_block = PersonBlockForm {
 554       person_id: inserted_person.id,
 555       target_id: inserted_blocked_person.id,
 556     };
 557
 558     PersonBlock::block(pool, &person_block).await.unwrap();
 559
 560     // A sample post
 561     let new_post = PostInsertForm::builder()
 562       .name("test post 3".to_string())
 563       .creator_id(inserted_person.id)
 564       .community_id(inserted_community.id)
 565       .language_id(Some(LanguageId(47)))
 566       .build();
 567
 568     let inserted_post = Post::create(pool, &new_post).await.unwrap();
 569
 570     let new_bot_post = PostInsertForm::builder()
 571       .name("test bot post".to_string())
 572       .creator_id(inserted_bot.id)
 573       .community_id(inserted_community.id)
 574       .build();
 575
 576     let _inserted_bot_post = Post::create(pool, &new_bot_post).await.unwrap();
 577
 578     Data {
 579       inserted_instance,
 580       inserted_person,
 581       inserted_local_user,
 582       inserted_blocked_person,
 583       inserted_bot,
 584       inserted_community,
 585       inserted_post,
 586     }
 587   }
 588
 589   #[tokio::test]
 590   #[serial]
 591   async fn post_listing_with_person() {
 592     let pool = &build_db_pool_for_tests().await;
 593     let data = init_data(pool).await;
 594
 595     let local_user_form = LocalUserUpdateForm::builder()
 596       .show_bot_accounts(Some(false))
 597       .build();
 598     let inserted_local_user =
 599       LocalUser::update(pool, data.inserted_local_user.id, &local_user_form)
 600         .await
 601         .unwrap();
 602
 603     let read_post_listing = PostQuery::builder()
 604       .pool(pool)
 605       .sort(Some(SortType::New))
 606       .community_id(Some(data.inserted_community.id))
 607       .local_user(Some(&inserted_local_user))
 608       .build()
 609       .list()
 610       .await
 611       .unwrap();
 612
 613     let post_listing_single_with_person = PostView::read(
 614       pool,
 615       data.inserted_post.id,
 616       Some(data.inserted_person.id),
 617       None,
 618     )
 619     .await
 620     .unwrap();
 621
 622     let mut expected_post_listing_with_user = expected_post_view(&data, pool).await;
 623
 624     // Should be only one person, IE the bot post, and blocked should be missing
 625     assert_eq!(1, read_post_listing.len());
 626
 627     assert_eq!(expected_post_listing_with_user, read_post_listing[0]);
 628     expected_post_listing_with_user.my_vote = Some(0);
 629     assert_eq!(
 630       expected_post_listing_with_user,
 631       post_listing_single_with_person
 632     );
 633
 634     let local_user_form = LocalUserUpdateForm::builder()
 635       .show_bot_accounts(Some(true))
 636       .build();
 637     let inserted_local_user =
 638       LocalUser::update(pool, data.inserted_local_user.id, &local_user_form)
 639         .await
 640         .unwrap();
 641
 642     let post_listings_with_bots = PostQuery::builder()
 643       .pool(pool)
 644       .sort(Some(SortType::New))
 645       .community_id(Some(data.inserted_community.id))
 646       .local_user(Some(&inserted_local_user))
 647       .build()
 648       .list()
 649       .await
 650       .unwrap();
 651     // should include bot post which has "undetermined" language
 652     assert_eq!(2, post_listings_with_bots.len());
 653
 654     cleanup(data, pool).await;
 655   }
 656
 657   #[tokio::test]
 658   #[serial]
 659   async fn post_listing_no_person() {
 660     let pool = &build_db_pool_for_tests().await;
 661     let data = init_data(pool).await;
 662
 663     let read_post_listing_multiple_no_person = PostQuery::builder()
 664       .pool(pool)
 665       .sort(Some(SortType::New))
 666       .community_id(Some(data.inserted_community.id))
 667       .build()
 668       .list()
 669       .await
 670       .unwrap();
 671
 672     let read_post_listing_single_no_person =
 673       PostView::read(pool, data.inserted_post.id, None, 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: Person {
 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         private_key: inserted_person.private_key.clone(),
 904         public_key: inserted_person.public_key.clone(),
 905         last_refreshed_at: inserted_person.last_refreshed_at,
 906       },
 907       creator_banned_from_community: false,
 908       community: Community {
 909         id: inserted_community.id,
 910         name: inserted_community.name.clone(),
 911         icon: None,
 912         removed: false,
 913         deleted: false,
 914         nsfw: false,
 915         actor_id: inserted_community.actor_id.clone(),
 916         local: true,
 917         title: "nada".to_owned(),
 918         description: None,
 919         updated: None,
 920         banner: None,
 921         hidden: false,
 922         posting_restricted_to_mods: false,
 923         published: inserted_community.published,
 924         instance_id: data.inserted_instance.id,
 925         private_key: inserted_community.private_key.clone(),
 926         public_key: inserted_community.public_key.clone(),
 927         last_refreshed_at: inserted_community.last_refreshed_at,
 928         followers_url: inserted_community.followers_url.clone(),
 929         inbox_url: inserted_community.inbox_url.clone(),
 930         shared_inbox_url: inserted_community.shared_inbox_url.clone(),
 931         moderators_url: inserted_community.moderators_url.clone(),
 932         featured_url: inserted_community.featured_url.clone(),
 933       },
 934       counts: PostAggregates {
 935         id: agg.id,
 936         post_id: inserted_post.id,
 937         comments: 0,
 938         score: 0,
 939         upvotes: 0,
 940         downvotes: 0,
 941         published: agg.published,
 942         newest_comment_time_necro: inserted_post.published,
 943         newest_comment_time: inserted_post.published,
 944         featured_community: false,
 945         featured_local: false,
 946       },
 947       subscribed: SubscribedType::NotSubscribed,
 948       read: false,
 949       saved: false,
 950       creator_blocked: false,
 951     }
 952   }
 953 }