lemmy_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 published: chrono::NaiveDateTime,
  15   pub newest_comment_time: chrono::NaiveDateTime,
  16 }
  17
  18 impl PostAggregates {
  19   pub fn read(conn: &PgConnection, post_id: i32) -> Result<Self, Error> {
  20     post_aggregates::table
  21       .filter(post_aggregates::post_id.eq(post_id))
  22       .first::<Self>(conn)
  23   }
  24 }
  25
  26 #[cfg(test)]
  27 mod tests {
  28   use crate::{
  29     aggregates::post_aggregates::PostAggregates,
  30     establish_unpooled_connection,
  31     Crud,
  32     Likeable,
  33     ListingType,
  34     SortType,
  35   };
  36   use lemmy_db_schema::source::{
  37     comment::{Comment, CommentForm},
  38     community::{Community, CommunityForm},
  39     post::{Post, PostForm, PostLike, PostLikeForm},
  40     user::{UserForm, User_},
  41   };
  42
  43   #[test]
  44   fn test_crud() {
  45     let conn = establish_unpooled_connection();
  46
  47     let new_user = UserForm {
  48       name: "thommy_community_agg".into(),
  49       preferred_username: None,
  50       password_encrypted: "nope".into(),
  51       email: None,
  52       matrix_user_id: None,
  53       avatar: None,
  54       banner: None,
  55       admin: false,
  56       banned: Some(false),
  57       published: None,
  58       updated: None,
  59       show_nsfw: false,
  60       theme: "browser".into(),
  61       default_sort_type: SortType::Hot as i16,
  62       default_listing_type: ListingType::Subscribed as i16,
  63       lang: "browser".into(),
  64       show_avatars: true,
  65       send_notifications_to_email: false,
  66       actor_id: None,
  67       bio: None,
  68       local: true,
  69       private_key: None,
  70       public_key: None,
  71       last_refreshed_at: None,
  72     };
  73
  74     let inserted_user = User_::create(&conn, &new_user).unwrap();
  75
  76     let another_user = UserForm {
  77       name: "jerry_community_agg".into(),
  78       preferred_username: None,
  79       password_encrypted: "nope".into(),
  80       email: None,
  81       matrix_user_id: None,
  82       avatar: None,
  83       banner: None,
  84       admin: false,
  85       banned: Some(false),
  86       published: None,
  87       updated: None,
  88       show_nsfw: false,
  89       theme: "browser".into(),
  90       default_sort_type: SortType::Hot as i16,
  91       default_listing_type: ListingType::Subscribed as i16,
  92       lang: "browser".into(),
  93       show_avatars: true,
  94       send_notifications_to_email: false,
  95       actor_id: None,
  96       bio: None,
  97       local: true,
  98       private_key: None,
  99       public_key: None,
 100       last_refreshed_at: None,
 101     };
 102
 103     let another_inserted_user = User_::create(&conn, &another_user).unwrap();
 104
 105     let new_community = CommunityForm {
 106       name: "TIL_community_agg".into(),
 107       creator_id: inserted_user.id,
 108       title: "nada".to_owned(),
 109       description: None,
 110       category_id: 1,
 111       nsfw: false,
 112       removed: None,
 113       deleted: None,
 114       updated: None,
 115       actor_id: None,
 116       local: true,
 117       private_key: None,
 118       public_key: None,
 119       last_refreshed_at: None,
 120       published: None,
 121       icon: None,
 122       banner: None,
 123     };
 124
 125     let inserted_community = Community::create(&conn, &new_community).unwrap();
 126
 127     let new_post = PostForm {
 128       name: "A test post".into(),
 129       url: None,
 130       body: None,
 131       creator_id: inserted_user.id,
 132       community_id: inserted_community.id,
 133       removed: None,
 134       deleted: None,
 135       locked: None,
 136       stickied: None,
 137       nsfw: false,
 138       updated: None,
 139       embed_title: None,
 140       embed_description: None,
 141       embed_html: None,
 142       thumbnail_url: None,
 143       ap_id: None,
 144       local: true,
 145       published: None,
 146     };
 147
 148     let inserted_post = Post::create(&conn, &new_post).unwrap();
 149
 150     let comment_form = CommentForm {
 151       content: "A test comment".into(),
 152       creator_id: inserted_user.id,
 153       post_id: inserted_post.id,
 154       removed: None,
 155       deleted: None,
 156       read: None,
 157       parent_id: None,
 158       published: None,
 159       updated: None,
 160       ap_id: None,
 161       local: true,
 162     };
 163
 164     let inserted_comment = Comment::create(&conn, &comment_form).unwrap();
 165
 166     let child_comment_form = CommentForm {
 167       content: "A test comment".into(),
 168       creator_id: inserted_user.id,
 169       post_id: inserted_post.id,
 170       removed: None,
 171       deleted: None,
 172       read: None,
 173       parent_id: Some(inserted_comment.id),
 174       published: None,
 175       updated: None,
 176       ap_id: None,
 177       local: true,
 178     };
 179
 180     let _inserted_child_comment = Comment::create(&conn, &child_comment_form).unwrap();
 181
 182     let post_like = PostLikeForm {
 183       post_id: inserted_post.id,
 184       user_id: inserted_user.id,
 185       score: 1,
 186     };
 187
 188     PostLike::like(&conn, &post_like).unwrap();
 189
 190     let post_aggs_before_delete = PostAggregates::read(&conn, inserted_post.id).unwrap();
 191
 192     assert_eq!(2, post_aggs_before_delete.comments);
 193     assert_eq!(1, post_aggs_before_delete.score);
 194     assert_eq!(1, post_aggs_before_delete.upvotes);
 195     assert_eq!(0, post_aggs_before_delete.downvotes);
 196
 197     // Add a post dislike from the other user
 198     let post_dislike = PostLikeForm {
 199       post_id: inserted_post.id,
 200       user_id: another_inserted_user.id,
 201       score: -1,
 202     };
 203
 204     PostLike::like(&conn, &post_dislike).unwrap();
 205
 206     let post_aggs_after_dislike = PostAggregates::read(&conn, inserted_post.id).unwrap();
 207
 208     assert_eq!(2, post_aggs_after_dislike.comments);
 209     assert_eq!(0, post_aggs_after_dislike.score);
 210     assert_eq!(1, post_aggs_after_dislike.upvotes);
 211     assert_eq!(1, post_aggs_after_dislike.downvotes);
 212
 213     // Remove the parent comment
 214     Comment::delete(&conn, inserted_comment.id).unwrap();
 215     let after_comment_delete = PostAggregates::read(&conn, inserted_post.id).unwrap();
 216     assert_eq!(0, after_comment_delete.comments);
 217     assert_eq!(0, after_comment_delete.score);
 218     assert_eq!(1, after_comment_delete.upvotes);
 219     assert_eq!(1, after_comment_delete.downvotes);
 220
 221     // Remove the first post like
 222     PostLike::remove(&conn, inserted_user.id, inserted_post.id).unwrap();
 223     let after_like_remove = PostAggregates::read(&conn, inserted_post.id).unwrap();
 224     assert_eq!(0, after_like_remove.comments);
 225     assert_eq!(-1, after_like_remove.score);
 226     assert_eq!(0, after_like_remove.upvotes);
 227     assert_eq!(1, after_like_remove.downvotes);
 228
 229     // This should delete all the associated rows, and fire triggers
 230     User_::delete(&conn, another_inserted_user.id).unwrap();
 231     let user_num_deleted = User_::delete(&conn, inserted_user.id).unwrap();
 232     assert_eq!(1, user_num_deleted);
 233
 234     // Should be none found, since the creator was deleted
 235     let after_delete = PostAggregates::read(&conn, inserted_post.id);
 236     assert!(after_delete.is_err());
 237   }
 238 }