crates/db_views/src/comment_view.rs

   1 use crate::structs::CommentView;
   2 use diesel::{
   3   result::Error,
   4   BoolExpressionMethods,
   5   ExpressionMethods,
   6   JoinOnDsl,
   7   NullableExpressionMethods,
   8   PgTextExpressionMethods,
   9   QueryDsl,
  10 };
  11 use diesel_async::RunQueryDsl;
  12 use diesel_ltree::{nlevel, subpath, Ltree, LtreeExtensions};
  13 use lemmy_db_schema::{
  14   aggregates::structs::CommentAggregates,
  15   newtypes::{CommentId, CommunityId, LocalUserId, PersonId, PostId},
  16   schema::{
  17     comment,
  18     comment_aggregates,
  19     comment_like,
  20     comment_saved,
  21     community,
  22     community_block,
  23     community_follower,
  24     community_person_ban,
  25     local_user_language,
  26     person,
  27     person_block,
  28     post,
  29   },
  30   source::{
  31     comment::{Comment, CommentSaved},
  32     community::{Community, CommunityFollower, CommunityPersonBan},
  33     local_user::LocalUser,
  34     person::Person,
  35     person_block::PersonBlock,
  36     post::Post,
  37   },
  38   traits::JoinView,
  39   utils::{functions::hot_rank, fuzzy_search, get_conn, limit_and_offset_unlimited, DbPool},
  40   CommentSortType,
  41   ListingType,
  42 };
  43 use typed_builder::TypedBuilder;
  44
  45 type CommentViewTuple = (
  46   Comment,
  47   Person,
  48   Post,
  49   Community,
  50   CommentAggregates,
  51   Option<CommunityPersonBan>,
  52   Option<CommunityFollower>,
  53   Option<CommentSaved>,
  54   Option<PersonBlock>,
  55   Option<i16>,
  56 );
  57
  58 impl CommentView {
  59   pub async fn read(
  60     pool: &DbPool,
  61     comment_id: CommentId,
  62     my_person_id: Option<PersonId>,
  63   ) -> Result<Self, Error> {
  64     let conn = &mut get_conn(pool).await?;
  65
  66     // The left join below will return None in this case
  67     let person_id_join = my_person_id.unwrap_or(PersonId(-1));
  68
  69     let (
  70       comment,
  71       creator,
  72       post,
  73       community,
  74       counts,
  75       creator_banned_from_community,
  76       follower,
  77       saved,
  78       creator_blocked,
  79       comment_like,
  80     ) = comment::table
  81       .find(comment_id)
  82       .inner_join(person::table)
  83       .inner_join(post::table)
  84       .inner_join(community::table.on(post::community_id.eq(community::id)))
  85       .inner_join(comment_aggregates::table)
  86       .left_join(
  87         community_person_ban::table.on(
  88           community::id
  89             .eq(community_person_ban::community_id)
  90             .and(community_person_ban::person_id.eq(comment::creator_id)),
  91         ),
  92       )
  93       .left_join(
  94         community_follower::table.on(
  95           post::community_id
  96             .eq(community_follower::community_id)
  97             .and(community_follower::person_id.eq(person_id_join)),
  98         ),
  99       )
 100       .left_join(
 101         comment_saved::table.on(
 102           comment::id
 103             .eq(comment_saved::comment_id)
 104             .and(comment_saved::person_id.eq(person_id_join)),
 105         ),
 106       )
 107       .left_join(
 108         person_block::table.on(
 109           comment::creator_id
 110             .eq(person_block::target_id)
 111             .and(person_block::person_id.eq(person_id_join)),
 112         ),
 113       )
 114       .left_join(
 115         comment_like::table.on(
 116           comment::id
 117             .eq(comment_like::comment_id)
 118             .and(comment_like::person_id.eq(person_id_join)),
 119         ),
 120       )
 121       .select((
 122         comment::all_columns,
 123         person::all_columns,
 124         post::all_columns,
 125         community::all_columns,
 126         comment_aggregates::all_columns,
 127         community_person_ban::all_columns.nullable(),
 128         community_follower::all_columns.nullable(),
 129         comment_saved::all_columns.nullable(),
 130         person_block::all_columns.nullable(),
 131         comment_like::score.nullable(),
 132       ))
 133       .first::<CommentViewTuple>(conn)
 134       .await?;
 135
 136     // If a person is given, then my_vote, if None, should be 0, not null
 137     // Necessary to differentiate between other person's votes
 138     let my_vote = if my_person_id.is_some() && comment_like.is_none() {
 139       Some(0)
 140     } else {
 141       comment_like
 142     };
 143
 144     Ok(CommentView {
 145       comment,
 146       post,
 147       creator,
 148       community,
 149       counts,
 150       creator_banned_from_community: creator_banned_from_community.is_some(),
 151       subscribed: CommunityFollower::to_subscribed_type(&follower),
 152       saved: saved.is_some(),
 153       creator_blocked: creator_blocked.is_some(),
 154       my_vote,
 155     })
 156   }
 157 }
 158
 159 #[derive(TypedBuilder)]
 160 #[builder(field_defaults(default))]
 161 pub struct CommentQuery<'a> {
 162   #[builder(!default)]
 163   pool: &'a DbPool,
 164   listing_type: Option<ListingType>,
 165   sort: Option<CommentSortType>,
 166   community_id: Option<CommunityId>,
 167   post_id: Option<PostId>,
 168   parent_path: Option<Ltree>,
 169   creator_id: Option<PersonId>,
 170   local_user: Option<&'a LocalUser>,
 171   search_term: Option<String>,
 172   saved_only: Option<bool>,
 173   show_deleted_and_removed: Option<bool>,
 174   page: Option<i64>,
 175   limit: Option<i64>,
 176   max_depth: Option<i32>,
 177 }
 178
 179 impl<'a> CommentQuery<'a> {
 180   pub async fn list(self) -> Result<Vec<CommentView>, Error> {
 181     let conn = &mut get_conn(self.pool).await?;
 182
 183     // The left join below will return None in this case
 184     let person_id_join = self.local_user.map(|l| l.person_id).unwrap_or(PersonId(-1));
 185     let local_user_id_join = self.local_user.map(|l| l.id).unwrap_or(LocalUserId(-1));
 186
 187     let mut query = comment::table
 188       .inner_join(person::table)
 189       .inner_join(post::table)
 190       .inner_join(community::table.on(post::community_id.eq(community::id)))
 191       .inner_join(comment_aggregates::table)
 192       .left_join(
 193         community_person_ban::table.on(
 194           community::id
 195             .eq(community_person_ban::community_id)
 196             .and(community_person_ban::person_id.eq(comment::creator_id)),
 197         ),
 198       )
 199       .left_join(
 200         community_follower::table.on(
 201           post::community_id
 202             .eq(community_follower::community_id)
 203             .and(community_follower::person_id.eq(person_id_join)),
 204         ),
 205       )
 206       .left_join(
 207         comment_saved::table.on(
 208           comment::id
 209             .eq(comment_saved::comment_id)
 210             .and(comment_saved::person_id.eq(person_id_join)),
 211         ),
 212       )
 213       .left_join(
 214         person_block::table.on(
 215           comment::creator_id
 216             .eq(person_block::target_id)
 217             .and(person_block::person_id.eq(person_id_join)),
 218         ),
 219       )
 220       .left_join(
 221         community_block::table.on(
 222           community::id
 223             .eq(community_block::community_id)
 224             .and(community_block::person_id.eq(person_id_join)),
 225         ),
 226       )
 227       .left_join(
 228         comment_like::table.on(
 229           comment::id
 230             .eq(comment_like::comment_id)
 231             .and(comment_like::person_id.eq(person_id_join)),
 232         ),
 233       )
 234       .left_join(
 235         local_user_language::table.on(
 236           comment::language_id
 237             .eq(local_user_language::language_id)
 238             .and(local_user_language::local_user_id.eq(local_user_id_join)),
 239         ),
 240       )
 241       .select((
 242         comment::all_columns,
 243         person::all_columns,
 244         post::all_columns,
 245         community::all_columns,
 246         comment_aggregates::all_columns,
 247         community_person_ban::all_columns.nullable(),
 248         community_follower::all_columns.nullable(),
 249         comment_saved::all_columns.nullable(),
 250         person_block::all_columns.nullable(),
 251         comment_like::score.nullable(),
 252       ))
 253       .into_boxed();
 254
 255     if let Some(creator_id) = self.creator_id {
 256       query = query.filter(comment::creator_id.eq(creator_id));
 257     };
 258
 259     if let Some(post_id) = self.post_id {
 260       query = query.filter(comment::post_id.eq(post_id));
 261     };
 262
 263     if let Some(parent_path) = self.parent_path.as_ref() {
 264       query = query.filter(comment::path.contained_by(parent_path));
 265     };
 266
 267     if let Some(search_term) = self.search_term {
 268       query = query.filter(comment::content.ilike(fuzzy_search(&search_term)));
 269     };
 270
 271     if let Some(community_id) = self.community_id {
 272       query = query.filter(post::community_id.eq(community_id));
 273     }
 274
 275     if let Some(listing_type) = self.listing_type {
 276       match listing_type {
 277         ListingType::Subscribed => {
 278           query = query.filter(community_follower::person_id.is_not_null())
 279         } // TODO could be this: and(community_follower::person_id.eq(person_id_join)),
 280         ListingType::Local => {
 281           query = query.filter(community::local.eq(true)).filter(
 282             community::hidden
 283               .eq(false)
 284               .or(community_follower::person_id.eq(person_id_join)),
 285           )
 286         }
 287         ListingType::All => {
 288           query = query.filter(
 289             community::hidden
 290               .eq(false)
 291               .or(community_follower::person_id.eq(person_id_join)),
 292           )
 293         }
 294       }
 295     }
 296
 297     if self.saved_only.unwrap_or(false) {
 298       query = query.filter(comment_saved::comment_id.is_not_null());
 299     }
 300
 301     if !self.show_deleted_and_removed.unwrap_or(true) {
 302       query = query.filter(comment::deleted.eq(false));
 303       query = query.filter(comment::removed.eq(false));
 304     }
 305
 306     if !self.local_user.map(|l| l.show_bot_accounts).unwrap_or(true) {
 307       query = query.filter(person::bot_account.eq(false));
 308     };
 309
 310     if self.local_user.is_some() {
 311       // Filter out the rows with missing languages
 312       query = query.filter(local_user_language::language_id.is_not_null());
 313
 314       // Don't show blocked communities or persons
 315       query = query.filter(community_block::person_id.is_null());
 316       query = query.filter(person_block::person_id.is_null());
 317     }
 318
 319     // A Max depth given means its a tree fetch
 320     let (limit, offset) = if let Some(max_depth) = self.max_depth {
 321       let depth_limit = if let Some(parent_path) = self.parent_path.as_ref() {
 322         parent_path.0.split('.').count() as i32 + max_depth
 323         // Add one because of root "0"
 324       } else {
 325         max_depth + 1
 326       };
 327
 328       query = query.filter(nlevel(comment::path).le(depth_limit));
 329
 330       // Always order by the parent path first
 331       query = query.order_by(subpath(comment::path, 0, -1));
 332
 333       // TODO limit question. Limiting does not work for comment threads ATM, only max_depth
 334       // For now, don't do any limiting for tree fetches
 335       // https://stackoverflow.com/questions/72983614/postgres-ltree-how-to-limit-the-max-number-of-children-at-any-given-level
 336
 337       // Don't use the regular error-checking one, many more comments must ofter be fetched.
 338       // This does not work for comment trees, and the limit should be manually set to a high number
 339       //
 340       // If a max depth is given, then you know its a tree fetch, and limits should be ignored
 341       (i64::MAX, 0)
 342     } else {
 343       limit_and_offset_unlimited(self.page, self.limit)
 344     };
 345
 346     query = match self.sort.unwrap_or(CommentSortType::Hot) {
 347       CommentSortType::Hot => query
 348         .then_order_by(hot_rank(comment_aggregates::score, comment_aggregates::published).desc())
 349         .then_order_by(comment_aggregates::published.desc()),
 350       CommentSortType::New => query.then_order_by(comment::published.desc()),
 351       CommentSortType::Old => query.then_order_by(comment::published.asc()),
 352       CommentSortType::Top => query.order_by(comment_aggregates::score.desc()),
 353     };
 354
 355     // Note: deleted and removed comments are done on the front side
 356     let res = query
 357       .limit(limit)
 358       .offset(offset)
 359       .load::<CommentViewTuple>(conn)
 360       .await?;
 361
 362     Ok(res.into_iter().map(CommentView::from_tuple).collect())
 363   }
 364 }
 365
 366 impl JoinView for CommentView {
 367   type JoinTuple = CommentViewTuple;
 368   fn from_tuple(a: Self::JoinTuple) -> Self {
 369     Self {
 370       comment: a.0,
 371       creator: a.1,
 372       post: a.2,
 373       community: a.3,
 374       counts: a.4,
 375       creator_banned_from_community: a.5.is_some(),
 376       subscribed: CommunityFollower::to_subscribed_type(&a.6),
 377       saved: a.7.is_some(),
 378       creator_blocked: a.8.is_some(),
 379       my_vote: a.9,
 380     }
 381   }
 382 }
 383
 384 #[cfg(test)]
 385 mod tests {
 386   use crate::comment_view::{
 387     Comment,
 388     CommentQuery,
 389     CommentSortType,
 390     CommentView,
 391     Community,
 392     DbPool,
 393     LocalUser,
 394     Person,
 395     PersonBlock,
 396     Post,
 397   };
 398   use lemmy_db_schema::{
 399     aggregates::structs::CommentAggregates,
 400     impls::actor_language::UNDETERMINED_ID,
 401     newtypes::LanguageId,
 402     source::{
 403       actor_language::LocalUserLanguage,
 404       comment::{CommentInsertForm, CommentLike, CommentLikeForm},
 405       community::CommunityInsertForm,
 406       instance::Instance,
 407       language::Language,
 408       local_user::LocalUserInsertForm,
 409       person::PersonInsertForm,
 410       person_block::PersonBlockForm,
 411       post::PostInsertForm,
 412     },
 413     traits::{Blockable, Crud, Likeable},
 414     utils::build_db_pool_for_tests,
 415     SubscribedType,
 416   };
 417   use serial_test::serial;
 418
 419   struct Data {
 420     inserted_instance: Instance,
 421     inserted_comment_0: Comment,
 422     inserted_comment_1: Comment,
 423     inserted_comment_2: Comment,
 424     inserted_post: Post,
 425     inserted_person: Person,
 426     inserted_local_user: LocalUser,
 427     inserted_person_2: Person,
 428     inserted_community: Community,
 429   }
 430
 431   async fn init_data(pool: &DbPool) -> Data {
 432     let inserted_instance = Instance::read_or_create(pool, "my_domain.tld".to_string())
 433       .await
 434       .unwrap();
 435
 436     let new_person = PersonInsertForm::builder()
 437       .name("timmy".into())
 438       .public_key("pubkey".to_string())
 439       .instance_id(inserted_instance.id)
 440       .build();
 441     let inserted_person = Person::create(pool, &new_person).await.unwrap();
 442     let local_user_form = LocalUserInsertForm::builder()
 443       .person_id(inserted_person.id)
 444       .password_encrypted(String::new())
 445       .build();
 446     let inserted_local_user = LocalUser::create(pool, &local_user_form).await.unwrap();
 447
 448     let new_person_2 = PersonInsertForm::builder()
 449       .name("sara".into())
 450       .public_key("pubkey".to_string())
 451       .instance_id(inserted_instance.id)
 452       .build();
 453     let inserted_person_2 = Person::create(pool, &new_person_2).await.unwrap();
 454
 455     let new_community = CommunityInsertForm::builder()
 456       .name("test community 5".to_string())
 457       .title("nada".to_owned())
 458       .public_key("pubkey".to_string())
 459       .instance_id(inserted_instance.id)
 460       .build();
 461
 462     let inserted_community = Community::create(pool, &new_community).await.unwrap();
 463
 464     let new_post = PostInsertForm::builder()
 465       .name("A test post 2".into())
 466       .creator_id(inserted_person.id)
 467       .community_id(inserted_community.id)
 468       .build();
 469
 470     let inserted_post = Post::create(pool, &new_post).await.unwrap();
 471
 472     // Create a comment tree with this hierarchy
 473     //       0
 474     //     \     \
 475     //    1      2
 476     //    \
 477     //  3  4
 478     //     \
 479     //     5
 480     let comment_form_0 = CommentInsertForm::builder()
 481       .content("Comment 0".into())
 482       .creator_id(inserted_person.id)
 483       .post_id(inserted_post.id)
 484       .build();
 485
 486     let inserted_comment_0 = Comment::create(pool, &comment_form_0, None).await.unwrap();
 487
 488     let comment_form_1 = CommentInsertForm::builder()
 489       .content("Comment 1, A test blocked comment".into())
 490       .creator_id(inserted_person_2.id)
 491       .post_id(inserted_post.id)
 492       .build();
 493
 494     let inserted_comment_1 = Comment::create(pool, &comment_form_1, Some(&inserted_comment_0.path))
 495       .await
 496       .unwrap();
 497
 498     let finnish_id = Language::read_id_from_code(pool, Some("fi"))
 499       .await
 500       .unwrap()
 501       .unwrap();
 502     let comment_form_2 = CommentInsertForm::builder()
 503       .content("Comment 2".into())
 504       .creator_id(inserted_person.id)
 505       .post_id(inserted_post.id)
 506       .language_id(Some(finnish_id))
 507       .build();
 508
 509     let inserted_comment_2 = Comment::create(pool, &comment_form_2, Some(&inserted_comment_0.path))
 510       .await
 511       .unwrap();
 512
 513     let comment_form_3 = CommentInsertForm::builder()
 514       .content("Comment 3".into())
 515       .creator_id(inserted_person.id)
 516       .post_id(inserted_post.id)
 517       .build();
 518
 519     let _inserted_comment_3 =
 520       Comment::create(pool, &comment_form_3, Some(&inserted_comment_1.path))
 521         .await
 522         .unwrap();
 523
 524     let polish_id = Language::read_id_from_code(pool, Some("pl"))
 525       .await
 526       .unwrap()
 527       .unwrap();
 528     let comment_form_4 = CommentInsertForm::builder()
 529       .content("Comment 4".into())
 530       .creator_id(inserted_person.id)
 531       .post_id(inserted_post.id)
 532       .language_id(Some(polish_id))
 533       .build();
 534
 535     let inserted_comment_4 = Comment::create(pool, &comment_form_4, Some(&inserted_comment_1.path))
 536       .await
 537       .unwrap();
 538
 539     let comment_form_5 = CommentInsertForm::builder()
 540       .content("Comment 5".into())
 541       .creator_id(inserted_person.id)
 542       .post_id(inserted_post.id)
 543       .build();
 544
 545     let _inserted_comment_5 =
 546       Comment::create(pool, &comment_form_5, Some(&inserted_comment_4.path))
 547         .await
 548         .unwrap();
 549
 550     let timmy_blocks_sara_form = PersonBlockForm {
 551       person_id: inserted_person.id,
 552       target_id: inserted_person_2.id,
 553     };
 554
 555     let inserted_block = PersonBlock::block(pool, &timmy_blocks_sara_form)
 556       .await
 557       .unwrap();
 558
 559     let expected_block = PersonBlock {
 560       id: inserted_block.id,
 561       person_id: inserted_person.id,
 562       target_id: inserted_person_2.id,
 563       published: inserted_block.published,
 564     };
 565     assert_eq!(expected_block, inserted_block);
 566
 567     let comment_like_form = CommentLikeForm {
 568       comment_id: inserted_comment_0.id,
 569       post_id: inserted_post.id,
 570       person_id: inserted_person.id,
 571       score: 1,
 572     };
 573
 574     let _inserted_comment_like = CommentLike::like(pool, &comment_like_form).await.unwrap();
 575
 576     Data {
 577       inserted_instance,
 578       inserted_comment_0,
 579       inserted_comment_1,
 580       inserted_comment_2,
 581       inserted_post,
 582       inserted_person,
 583       inserted_local_user,
 584       inserted_person_2,
 585       inserted_community,
 586     }
 587   }
 588
 589   #[tokio::test]
 590   #[serial]
 591   async fn test_crud() {
 592     let pool = &build_db_pool_for_tests().await;
 593     let data = init_data(pool).await;
 594
 595     let expected_comment_view_no_person = expected_comment_view(&data, pool).await;
 596
 597     let mut expected_comment_view_with_person = expected_comment_view_no_person.clone();
 598     expected_comment_view_with_person.my_vote = Some(1);
 599
 600     let read_comment_views_no_person = CommentQuery::builder()
 601       .pool(pool)
 602       .sort(Some(CommentSortType::Hot))
 603       .post_id(Some(data.inserted_post.id))
 604       .build()
 605       .list()
 606       .await
 607       .unwrap();
 608
 609     assert_eq!(
 610       expected_comment_view_no_person,
 611       read_comment_views_no_person[0]
 612     );
 613
 614     let read_comment_views_with_person = CommentQuery::builder()
 615       .pool(pool)
 616       .sort(Some(CommentSortType::Hot))
 617       .post_id(Some(data.inserted_post.id))
 618       .local_user(Some(&data.inserted_local_user))
 619       .build()
 620       .list()
 621       .await
 622       .unwrap();
 623
 624     assert_eq!(
 625       expected_comment_view_with_person,
 626       read_comment_views_with_person[0]
 627     );
 628
 629     // Make sure its 1, not showing the blocked comment
 630     assert_eq!(5, read_comment_views_with_person.len());
 631
 632     let read_comment_from_blocked_person = CommentView::read(
 633       pool,
 634       data.inserted_comment_1.id,
 635       Some(data.inserted_person.id),
 636     )
 637     .await
 638     .unwrap();
 639
 640     // Make sure block set the creator blocked
 641     assert!(read_comment_from_blocked_person.creator_blocked);
 642
 643     cleanup(data, pool).await;
 644   }
 645
 646   #[tokio::test]
 647   #[serial]
 648   async fn test_comment_tree() {
 649     let pool = &build_db_pool_for_tests().await;
 650     let data = init_data(pool).await;
 651
 652     let top_path = data.inserted_comment_0.path.clone();
 653     let read_comment_views_top_path = CommentQuery::builder()
 654       .pool(pool)
 655       .post_id(Some(data.inserted_post.id))
 656       .parent_path(Some(top_path))
 657       .build()
 658       .list()
 659       .await
 660       .unwrap();
 661
 662     let child_path = data.inserted_comment_1.path.clone();
 663     let read_comment_views_child_path = CommentQuery::builder()
 664       .pool(pool)
 665       .post_id(Some(data.inserted_post.id))
 666       .parent_path(Some(child_path))
 667       .build()
 668       .list()
 669       .await
 670       .unwrap();
 671
 672     // Make sure the comment parent-limited fetch is correct
 673     assert_eq!(6, read_comment_views_top_path.len());
 674     assert_eq!(4, read_comment_views_child_path.len());
 675
 676     // Make sure it contains the parent, but not the comment from the other tree
 677     let child_comments = read_comment_views_child_path
 678       .into_iter()
 679       .map(|c| c.comment)
 680       .collect::<Vec<Comment>>();
 681     assert!(child_comments.contains(&data.inserted_comment_1));
 682     assert!(!child_comments.contains(&data.inserted_comment_2));
 683
 684     let read_comment_views_top_max_depth = CommentQuery::builder()
 685       .pool(pool)
 686       .post_id(Some(data.inserted_post.id))
 687       .max_depth(Some(1))
 688       .build()
 689       .list()
 690       .await
 691       .unwrap();
 692
 693     // Make sure a depth limited one only has the top comment
 694     assert_eq!(
 695       expected_comment_view(&data, pool).await,
 696       read_comment_views_top_max_depth[0]
 697     );
 698     assert_eq!(1, read_comment_views_top_max_depth.len());
 699
 700     let child_path = data.inserted_comment_1.path.clone();
 701     let read_comment_views_parent_max_depth = CommentQuery::builder()
 702       .pool(pool)
 703       .post_id(Some(data.inserted_post.id))
 704       .parent_path(Some(child_path))
 705       .max_depth(Some(1))
 706       .sort(Some(CommentSortType::New))
 707       .build()
 708       .list()
 709       .await
 710       .unwrap();
 711
 712     // Make sure a depth limited one, and given child comment 1, has 3
 713     assert!(read_comment_views_parent_max_depth[2]
 714       .comment
 715       .content
 716       .eq("Comment 3"));
 717     assert_eq!(3, read_comment_views_parent_max_depth.len());
 718
 719     cleanup(data, pool).await;
 720   }
 721
 722   #[tokio::test]
 723   #[serial]
 724   async fn test_languages() {
 725     let pool = &build_db_pool_for_tests().await;
 726     let data = init_data(pool).await;
 727
 728     // by default, user has all languages enabled and should see all comments
 729     // (except from blocked user)
 730     let all_languages = CommentQuery::builder()
 731       .pool(pool)
 732       .local_user(Some(&data.inserted_local_user))
 733       .build()
 734       .list()
 735       .await
 736       .unwrap();
 737     assert_eq!(5, all_languages.len());
 738
 739     // change user lang to finnish, should only show single finnish comment
 740     let finnish_id = Language::read_id_from_code(pool, Some("fi"))
 741       .await
 742       .unwrap()
 743       .unwrap();
 744     LocalUserLanguage::update(pool, vec![finnish_id], data.inserted_local_user.id)
 745       .await
 746       .unwrap();
 747     let finnish_comment = CommentQuery::builder()
 748       .pool(pool)
 749       .local_user(Some(&data.inserted_local_user))
 750       .build()
 751       .list()
 752       .await
 753       .unwrap();
 754     assert_eq!(1, finnish_comment.len());
 755     assert_eq!(
 756       data.inserted_comment_2.content,
 757       finnish_comment[0].comment.content
 758     );
 759     assert_eq!(finnish_id, finnish_comment[0].comment.language_id);
 760
 761     // now show all comments with undetermined language (which is the default value)
 762     LocalUserLanguage::update(pool, vec![UNDETERMINED_ID], data.inserted_local_user.id)
 763       .await
 764       .unwrap();
 765     let undetermined_comment = CommentQuery::builder()
 766       .pool(pool)
 767       .local_user(Some(&data.inserted_local_user))
 768       .build()
 769       .list()
 770       .await
 771       .unwrap();
 772     assert_eq!(3, undetermined_comment.len());
 773
 774     cleanup(data, pool).await;
 775   }
 776
 777   async fn cleanup(data: Data, pool: &DbPool) {
 778     CommentLike::remove(pool, data.inserted_person.id, data.inserted_comment_0.id)
 779       .await
 780       .unwrap();
 781     Comment::delete(pool, data.inserted_comment_0.id)
 782       .await
 783       .unwrap();
 784     Comment::delete(pool, data.inserted_comment_1.id)
 785       .await
 786       .unwrap();
 787     Post::delete(pool, data.inserted_post.id).await.unwrap();
 788     Community::delete(pool, data.inserted_community.id)
 789       .await
 790       .unwrap();
 791     Person::delete(pool, data.inserted_person.id).await.unwrap();
 792     Person::delete(pool, data.inserted_person_2.id)
 793       .await
 794       .unwrap();
 795     Instance::delete(pool, data.inserted_instance.id)
 796       .await
 797       .unwrap();
 798   }
 799
 800   async fn expected_comment_view(data: &Data, pool: &DbPool) -> CommentView {
 801     let agg = CommentAggregates::read(pool, data.inserted_comment_0.id)
 802       .await
 803       .unwrap();
 804     CommentView {
 805       creator_banned_from_community: false,
 806       my_vote: None,
 807       subscribed: SubscribedType::NotSubscribed,
 808       saved: false,
 809       creator_blocked: false,
 810       comment: Comment {
 811         id: data.inserted_comment_0.id,
 812         content: "Comment 0".into(),
 813         creator_id: data.inserted_person.id,
 814         post_id: data.inserted_post.id,
 815         removed: false,
 816         deleted: false,
 817         published: data.inserted_comment_0.published,
 818         ap_id: data.inserted_comment_0.ap_id.clone(),
 819         updated: None,
 820         local: true,
 821         distinguished: false,
 822         path: data.inserted_comment_0.clone().path,
 823         language_id: LanguageId(0),
 824       },
 825       creator: Person {
 826         id: data.inserted_person.id,
 827         name: "timmy".into(),
 828         display_name: None,
 829         published: data.inserted_person.published,
 830         avatar: None,
 831         actor_id: data.inserted_person.actor_id.clone(),
 832         local: true,
 833         banned: false,
 834         deleted: false,
 835         admin: false,
 836         bot_account: false,
 837         bio: None,
 838         banner: None,
 839         updated: None,
 840         inbox_url: data.inserted_person.inbox_url.clone(),
 841         shared_inbox_url: None,
 842         matrix_user_id: None,
 843         ban_expires: None,
 844         instance_id: data.inserted_instance.id,
 845         private_key: data.inserted_person.private_key.clone(),
 846         public_key: data.inserted_person.public_key.clone(),
 847         last_refreshed_at: data.inserted_person.last_refreshed_at,
 848       },
 849       post: Post {
 850         id: data.inserted_post.id,
 851         name: data.inserted_post.name.clone(),
 852         creator_id: data.inserted_person.id,
 853         url: None,
 854         body: None,
 855         published: data.inserted_post.published,
 856         updated: None,
 857         community_id: data.inserted_community.id,
 858         removed: false,
 859         deleted: false,
 860         locked: false,
 861         nsfw: false,
 862         embed_title: None,
 863         embed_description: None,
 864         embed_video_url: None,
 865         thumbnail_url: None,
 866         ap_id: data.inserted_post.ap_id.clone(),
 867         local: true,
 868         language_id: Default::default(),
 869         featured_community: false,
 870         featured_local: false,
 871       },
 872       community: Community {
 873         id: data.inserted_community.id,
 874         name: "test community 5".to_string(),
 875         icon: None,
 876         removed: false,
 877         deleted: false,
 878         nsfw: false,
 879         actor_id: data.inserted_community.actor_id.clone(),
 880         local: true,
 881         title: "nada".to_owned(),
 882         description: None,
 883         updated: None,
 884         banner: None,
 885         hidden: false,
 886         posting_restricted_to_mods: false,
 887         published: data.inserted_community.published,
 888         instance_id: data.inserted_instance.id,
 889         private_key: data.inserted_community.private_key.clone(),
 890         public_key: data.inserted_community.public_key.clone(),
 891         last_refreshed_at: data.inserted_community.last_refreshed_at,
 892         followers_url: data.inserted_community.followers_url.clone(),
 893         inbox_url: data.inserted_community.inbox_url.clone(),
 894         shared_inbox_url: data.inserted_community.shared_inbox_url.clone(),
 895         moderators_url: data.inserted_community.moderators_url.clone(),
 896         featured_url: data.inserted_community.featured_url.clone(),
 897       },
 898       counts: CommentAggregates {
 899         id: agg.id,
 900         comment_id: data.inserted_comment_0.id,
 901         score: 1,
 902         upvotes: 1,
 903         downvotes: 0,
 904         published: agg.published,
 905         child_count: 5,
 906       },
 907     }
 908   }
 909 }