crates/db_queries/src/aggregates/post_aggregates.rs

   1 use diesel::{result::Error, *};
   2 use lemmy_db_schema::{schema::post_aggregates, PostId};
   3 use serde::Serialize;
   4
   5 #[derive(Queryable, Associations, Identifiable, PartialEq, Debug, Serialize, Clone)]
   6 #[table_name = "post_aggregates"]
   7 pub struct PostAggregates {
   8   pub id: i32,
   9   pub post_id: PostId,
  10   pub comments: i64,
  11   pub score: i64,
  12   pub upvotes: i64,
  13   pub downvotes: i64,
  14   pub stickied: bool,
  15   pub published: chrono::NaiveDateTime,
  16   pub newest_comment_time_necro: chrono::NaiveDateTime, // A newest comment time, limited to 2 days, to prevent necrobumping
  17   pub newest_comment_time: chrono::NaiveDateTime,
  18 }
  19
  20 impl PostAggregates {
  21   pub fn read(conn: &PgConnection, post_id: PostId) -> Result<Self, Error> {
  22     post_aggregates::table
  23       .filter(post_aggregates::post_id.eq(post_id))
  24       .first::<Self>(conn)
  25   }
  26 }
  27
  28 #[cfg(test)]
  29 mod tests {
  30   use crate::{
  31     aggregates::post_aggregates::PostAggregates,
  32     establish_unpooled_connection,
  33     Crud,
  34     Likeable,
  35   };
  36   use lemmy_db_schema::source::{
  37     comment::{Comment, CommentForm},
  38     community::{Community, CommunityForm},
  39     person::{Person, PersonForm},
  40     post::{Post, PostForm, PostLike, PostLikeForm},
  41   };
  42   use serial_test::serial;
  43
  44   #[test]
  45   #[serial]
  46   fn test_crud() {
  47     let conn = establish_unpooled_connection();
  48
  49     let new_person = PersonForm {
  50       name: "thommy_community_agg".into(),
  51       preferred_username: None,
  52       avatar: None,
  53       banner: None,
  54       banned: None,
  55       deleted: None,
  56       published: None,
  57       updated: None,
  58       actor_id: None,
  59       bio: None,
  60       local: None,
  61       private_key: None,
  62       public_key: None,
  63       last_refreshed_at: None,
  64       inbox_url: None,
  65       shared_inbox_url: None,
  66       matrix_user_id: None,
  67     };
  68
  69     let inserted_person = Person::create(&conn, &new_person).unwrap();
  70
  71     let another_person = PersonForm {
  72       name: "jerry_community_agg".into(),
  73       preferred_username: None,
  74       avatar: None,
  75       banner: None,
  76       banned: None,
  77       deleted: None,
  78       published: None,
  79       updated: None,
  80       actor_id: None,
  81       bio: None,
  82       local: None,
  83       private_key: None,
  84       public_key: None,
  85       last_refreshed_at: None,
  86       inbox_url: None,
  87       shared_inbox_url: None,
  88       matrix_user_id: None,
  89     };
  90
  91     let another_inserted_person = Person::create(&conn, &another_person).unwrap();
  92
  93     let new_community = CommunityForm {
  94       name: "TIL_community_agg".into(),
  95       creator_id: inserted_person.id,
  96       title: "nada".to_owned(),
  97       description: None,
  98       nsfw: false,
  99       removed: None,
 100       deleted: None,
 101       updated: None,
 102       actor_id: None,
 103       local: true,
 104       private_key: None,
 105       public_key: None,
 106       last_refreshed_at: None,
 107       published: None,
 108       icon: None,
 109       banner: None,
 110       followers_url: None,
 111       inbox_url: None,
 112       shared_inbox_url: None,
 113     };
 114
 115     let inserted_community = Community::create(&conn, &new_community).unwrap();
 116
 117     let new_post = PostForm {
 118       name: "A test post".into(),
 119       url: None,
 120       body: None,
 121       creator_id: inserted_person.id,
 122       community_id: inserted_community.id,
 123       removed: None,
 124       deleted: None,
 125       locked: None,
 126       stickied: None,
 127       nsfw: false,
 128       updated: None,
 129       embed_title: None,
 130       embed_description: None,
 131       embed_html: None,
 132       thumbnail_url: None,
 133       ap_id: None,
 134       local: true,
 135       published: None,
 136     };
 137
 138     let inserted_post = Post::create(&conn, &new_post).unwrap();
 139
 140     let comment_form = CommentForm {
 141       content: "A test comment".into(),
 142       creator_id: inserted_person.id,
 143       post_id: inserted_post.id,
 144       removed: None,
 145       deleted: None,
 146       read: None,
 147       parent_id: None,
 148       published: None,
 149       updated: None,
 150       ap_id: None,
 151       local: true,
 152     };
 153
 154     let inserted_comment = Comment::create(&conn, &comment_form).unwrap();
 155
 156     let child_comment_form = CommentForm {
 157       content: "A test comment".into(),
 158       creator_id: inserted_person.id,
 159       post_id: inserted_post.id,
 160       removed: None,
 161       deleted: None,
 162       read: None,
 163       parent_id: Some(inserted_comment.id),
 164       published: None,
 165       updated: None,
 166       ap_id: None,
 167       local: true,
 168     };
 169
 170     let _inserted_child_comment = Comment::create(&conn, &child_comment_form).unwrap();
 171
 172     let post_like = PostLikeForm {
 173       post_id: inserted_post.id,
 174       person_id: inserted_person.id,
 175       score: 1,
 176     };
 177
 178     PostLike::like(&conn, &post_like).unwrap();
 179
 180     let post_aggs_before_delete = PostAggregates::read(&conn, inserted_post.id).unwrap();
 181
 182     assert_eq!(2, post_aggs_before_delete.comments);
 183     assert_eq!(1, post_aggs_before_delete.score);
 184     assert_eq!(1, post_aggs_before_delete.upvotes);
 185     assert_eq!(0, post_aggs_before_delete.downvotes);
 186
 187     // Add a post dislike from the other person
 188     let post_dislike = PostLikeForm {
 189       post_id: inserted_post.id,
 190       person_id: another_inserted_person.id,
 191       score: -1,
 192     };
 193
 194     PostLike::like(&conn, &post_dislike).unwrap();
 195
 196     let post_aggs_after_dislike = PostAggregates::read(&conn, inserted_post.id).unwrap();
 197
 198     assert_eq!(2, post_aggs_after_dislike.comments);
 199     assert_eq!(0, post_aggs_after_dislike.score);
 200     assert_eq!(1, post_aggs_after_dislike.upvotes);
 201     assert_eq!(1, post_aggs_after_dislike.downvotes);
 202
 203     // Remove the parent comment
 204     Comment::delete(&conn, inserted_comment.id).unwrap();
 205     let after_comment_delete = PostAggregates::read(&conn, inserted_post.id).unwrap();
 206     assert_eq!(0, after_comment_delete.comments);
 207     assert_eq!(0, after_comment_delete.score);
 208     assert_eq!(1, after_comment_delete.upvotes);
 209     assert_eq!(1, after_comment_delete.downvotes);
 210
 211     // Remove the first post like
 212     PostLike::remove(&conn, inserted_person.id, inserted_post.id).unwrap();
 213     let after_like_remove = PostAggregates::read(&conn, inserted_post.id).unwrap();
 214     assert_eq!(0, after_like_remove.comments);
 215     assert_eq!(-1, after_like_remove.score);
 216     assert_eq!(0, after_like_remove.upvotes);
 217     assert_eq!(1, after_like_remove.downvotes);
 218
 219     // This should delete all the associated rows, and fire triggers
 220     Person::delete(&conn, another_inserted_person.id).unwrap();
 221     let person_num_deleted = Person::delete(&conn, inserted_person.id).unwrap();
 222     assert_eq!(1, person_num_deleted);
 223
 224     // Should be none found, since the creator was deleted
 225     let after_delete = PostAggregates::read(&conn, inserted_post.id);
 226     assert!(after_delete.is_err());
 227   }
 228 }