crates/db_queries/src/aggregates/post_aggregates.rs

   1 use diesel::{result::Error, *};
   2 use lemmy_db_schema::schema::post_aggregates;
   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: i32,
  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: i32) -> 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     ListingType,
  36     SortType,
  37   };
  38   use lemmy_db_schema::source::{
  39     comment::{Comment, CommentForm},
  40     community::{Community, CommunityForm},
  41     post::{Post, PostForm, PostLike, PostLikeForm},
  42     user::{UserForm, User_},
  43   };
  44
  45   #[test]
  46   fn test_crud() {
  47     let conn = establish_unpooled_connection();
  48
  49     let new_user = UserForm {
  50       name: "thommy_community_agg".into(),
  51       preferred_username: None,
  52       password_encrypted: "nope".into(),
  53       email: None,
  54       matrix_user_id: None,
  55       avatar: None,
  56       banner: None,
  57       admin: false,
  58       banned: Some(false),
  59       published: None,
  60       updated: None,
  61       show_nsfw: false,
  62       theme: "browser".into(),
  63       default_sort_type: SortType::Hot as i16,
  64       default_listing_type: ListingType::Subscribed as i16,
  65       lang: "browser".into(),
  66       show_avatars: true,
  67       send_notifications_to_email: false,
  68       actor_id: None,
  69       bio: None,
  70       local: true,
  71       private_key: None,
  72       public_key: None,
  73       last_refreshed_at: None,
  74       inbox_url: None,
  75       shared_inbox_url: None,
  76     };
  77
  78     let inserted_user = User_::create(&conn, &new_user).unwrap();
  79
  80     let another_user = UserForm {
  81       name: "jerry_community_agg".into(),
  82       preferred_username: None,
  83       password_encrypted: "nope".into(),
  84       email: None,
  85       matrix_user_id: None,
  86       avatar: None,
  87       banner: None,
  88       admin: false,
  89       banned: Some(false),
  90       published: None,
  91       updated: None,
  92       show_nsfw: false,
  93       theme: "browser".into(),
  94       default_sort_type: SortType::Hot as i16,
  95       default_listing_type: ListingType::Subscribed as i16,
  96       lang: "browser".into(),
  97       show_avatars: true,
  98       send_notifications_to_email: false,
  99       actor_id: None,
 100       bio: None,
 101       local: true,
 102       private_key: None,
 103       public_key: None,
 104       last_refreshed_at: None,
 105       inbox_url: None,
 106       shared_inbox_url: None,
 107     };
 108
 109     let another_inserted_user = User_::create(&conn, &another_user).unwrap();
 110
 111     let new_community = CommunityForm {
 112       name: "TIL_community_agg".into(),
 113       creator_id: inserted_user.id,
 114       title: "nada".to_owned(),
 115       description: None,
 116       nsfw: false,
 117       removed: None,
 118       deleted: None,
 119       updated: None,
 120       actor_id: None,
 121       local: true,
 122       private_key: None,
 123       public_key: None,
 124       last_refreshed_at: None,
 125       published: None,
 126       icon: None,
 127       banner: None,
 128       followers_url: None,
 129       inbox_url: None,
 130       shared_inbox_url: None,
 131     };
 132
 133     let inserted_community = Community::create(&conn, &new_community).unwrap();
 134
 135     let new_post = PostForm {
 136       name: "A test post".into(),
 137       url: None,
 138       body: None,
 139       creator_id: inserted_user.id,
 140       community_id: inserted_community.id,
 141       removed: None,
 142       deleted: None,
 143       locked: None,
 144       stickied: None,
 145       nsfw: false,
 146       updated: None,
 147       embed_title: None,
 148       embed_description: None,
 149       embed_html: None,
 150       thumbnail_url: None,
 151       ap_id: None,
 152       local: true,
 153       published: None,
 154     };
 155
 156     let inserted_post = Post::create(&conn, &new_post).unwrap();
 157
 158     let comment_form = CommentForm {
 159       content: "A test comment".into(),
 160       creator_id: inserted_user.id,
 161       post_id: inserted_post.id,
 162       removed: None,
 163       deleted: None,
 164       read: None,
 165       parent_id: None,
 166       published: None,
 167       updated: None,
 168       ap_id: None,
 169       local: true,
 170     };
 171
 172     let inserted_comment = Comment::create(&conn, &comment_form).unwrap();
 173
 174     let child_comment_form = CommentForm {
 175       content: "A test comment".into(),
 176       creator_id: inserted_user.id,
 177       post_id: inserted_post.id,
 178       removed: None,
 179       deleted: None,
 180       read: None,
 181       parent_id: Some(inserted_comment.id),
 182       published: None,
 183       updated: None,
 184       ap_id: None,
 185       local: true,
 186     };
 187
 188     let _inserted_child_comment = Comment::create(&conn, &child_comment_form).unwrap();
 189
 190     let post_like = PostLikeForm {
 191       post_id: inserted_post.id,
 192       user_id: inserted_user.id,
 193       score: 1,
 194     };
 195
 196     PostLike::like(&conn, &post_like).unwrap();
 197
 198     let post_aggs_before_delete = PostAggregates::read(&conn, inserted_post.id).unwrap();
 199
 200     assert_eq!(2, post_aggs_before_delete.comments);
 201     assert_eq!(1, post_aggs_before_delete.score);
 202     assert_eq!(1, post_aggs_before_delete.upvotes);
 203     assert_eq!(0, post_aggs_before_delete.downvotes);
 204
 205     // Add a post dislike from the other user
 206     let post_dislike = PostLikeForm {
 207       post_id: inserted_post.id,
 208       user_id: another_inserted_user.id,
 209       score: -1,
 210     };
 211
 212     PostLike::like(&conn, &post_dislike).unwrap();
 213
 214     let post_aggs_after_dislike = PostAggregates::read(&conn, inserted_post.id).unwrap();
 215
 216     assert_eq!(2, post_aggs_after_dislike.comments);
 217     assert_eq!(0, post_aggs_after_dislike.score);
 218     assert_eq!(1, post_aggs_after_dislike.upvotes);
 219     assert_eq!(1, post_aggs_after_dislike.downvotes);
 220
 221     // Remove the parent comment
 222     Comment::delete(&conn, inserted_comment.id).unwrap();
 223     let after_comment_delete = PostAggregates::read(&conn, inserted_post.id).unwrap();
 224     assert_eq!(0, after_comment_delete.comments);
 225     assert_eq!(0, after_comment_delete.score);
 226     assert_eq!(1, after_comment_delete.upvotes);
 227     assert_eq!(1, after_comment_delete.downvotes);
 228
 229     // Remove the first post like
 230     PostLike::remove(&conn, inserted_user.id, inserted_post.id).unwrap();
 231     let after_like_remove = PostAggregates::read(&conn, inserted_post.id).unwrap();
 232     assert_eq!(0, after_like_remove.comments);
 233     assert_eq!(-1, after_like_remove.score);
 234     assert_eq!(0, after_like_remove.upvotes);
 235     assert_eq!(1, after_like_remove.downvotes);
 236
 237     // This should delete all the associated rows, and fire triggers
 238     User_::delete(&conn, another_inserted_user.id).unwrap();
 239     let user_num_deleted = User_::delete(&conn, inserted_user.id).unwrap();
 240     assert_eq!(1, user_num_deleted);
 241
 242     // Should be none found, since the creator was deleted
 243     let after_delete = PostAggregates::read(&conn, inserted_post.id);
 244     assert!(after_delete.is_err());
 245   }
 246 }