crates/db_queries/src/aggregates/community_aggregates.rs

   1 use diesel::{result::Error, *};
   2 use lemmy_db_schema::schema::community_aggregates;
   3 use serde::Serialize;
   4
   5 #[derive(Queryable, Associations, Identifiable, PartialEq, Debug, Serialize, Clone)]
   6 #[table_name = "community_aggregates"]
   7 pub struct CommunityAggregates {
   8   pub id: i32,
   9   pub community_id: i32,
  10   pub subscribers: i64,
  11   pub posts: i64,
  12   pub comments: i64,
  13   pub published: chrono::NaiveDateTime,
  14 }
  15
  16 impl CommunityAggregates {
  17   pub fn read(conn: &PgConnection, community_id: i32) -> Result<Self, Error> {
  18     community_aggregates::table
  19       .filter(community_aggregates::community_id.eq(community_id))
  20       .first::<Self>(conn)
  21   }
  22 }
  23
  24 #[cfg(test)]
  25 mod tests {
  26   use crate::{
  27     aggregates::community_aggregates::CommunityAggregates,
  28     establish_unpooled_connection,
  29     Crud,
  30     Followable,
  31     ListingType,
  32     SortType,
  33   };
  34   use lemmy_db_schema::source::{
  35     comment::{Comment, CommentForm},
  36     community::{Community, CommunityFollower, CommunityFollowerForm, CommunityForm},
  37     post::{Post, PostForm},
  38     user::{UserForm, User_},
  39   };
  40
  41   #[test]
  42   fn test_crud() {
  43     let conn = establish_unpooled_connection();
  44
  45     let new_user = UserForm {
  46       name: "thommy_community_agg".into(),
  47       preferred_username: None,
  48       password_encrypted: "nope".into(),
  49       email: None,
  50       matrix_user_id: None,
  51       avatar: None,
  52       banner: None,
  53       admin: false,
  54       banned: Some(false),
  55       published: None,
  56       updated: None,
  57       show_nsfw: false,
  58       theme: "browser".into(),
  59       default_sort_type: SortType::Hot as i16,
  60       default_listing_type: ListingType::Subscribed as i16,
  61       lang: "browser".into(),
  62       show_avatars: true,
  63       send_notifications_to_email: false,
  64       actor_id: None,
  65       bio: None,
  66       local: true,
  67       private_key: None,
  68       public_key: None,
  69       last_refreshed_at: None,
  70     };
  71
  72     let inserted_user = User_::create(&conn, &new_user).unwrap();
  73
  74     let another_user = UserForm {
  75       name: "jerry_community_agg".into(),
  76       preferred_username: None,
  77       password_encrypted: "nope".into(),
  78       email: None,
  79       matrix_user_id: None,
  80       avatar: None,
  81       banner: None,
  82       admin: false,
  83       banned: Some(false),
  84       published: None,
  85       updated: None,
  86       show_nsfw: false,
  87       theme: "browser".into(),
  88       default_sort_type: SortType::Hot as i16,
  89       default_listing_type: ListingType::Subscribed as i16,
  90       lang: "browser".into(),
  91       show_avatars: true,
  92       send_notifications_to_email: false,
  93       actor_id: None,
  94       bio: None,
  95       local: true,
  96       private_key: None,
  97       public_key: None,
  98       last_refreshed_at: None,
  99     };
 100
 101     let another_inserted_user = User_::create(&conn, &another_user).unwrap();
 102
 103     let new_community = CommunityForm {
 104       name: "TIL_community_agg".into(),
 105       creator_id: inserted_user.id,
 106       title: "nada".to_owned(),
 107       description: None,
 108       category_id: 1,
 109       nsfw: false,
 110       removed: None,
 111       deleted: None,
 112       updated: None,
 113       actor_id: None,
 114       local: true,
 115       private_key: None,
 116       public_key: None,
 117       last_refreshed_at: None,
 118       published: None,
 119       icon: None,
 120       banner: None,
 121     };
 122
 123     let inserted_community = Community::create(&conn, &new_community).unwrap();
 124
 125     let another_community = CommunityForm {
 126       name: "TIL_community_agg_2".into(),
 127       creator_id: inserted_user.id,
 128       title: "nada".to_owned(),
 129       description: None,
 130       category_id: 1,
 131       nsfw: false,
 132       removed: None,
 133       deleted: None,
 134       updated: None,
 135       actor_id: None,
 136       local: true,
 137       private_key: None,
 138       public_key: None,
 139       last_refreshed_at: None,
 140       published: None,
 141       icon: None,
 142       banner: None,
 143     };
 144
 145     let another_inserted_community = Community::create(&conn, &another_community).unwrap();
 146
 147     let first_user_follow = CommunityFollowerForm {
 148       community_id: inserted_community.id,
 149       user_id: inserted_user.id,
 150       pending: false,
 151     };
 152
 153     CommunityFollower::follow(&conn, &first_user_follow).unwrap();
 154
 155     let second_user_follow = CommunityFollowerForm {
 156       community_id: inserted_community.id,
 157       user_id: another_inserted_user.id,
 158       pending: false,
 159     };
 160
 161     CommunityFollower::follow(&conn, &second_user_follow).unwrap();
 162
 163     let another_community_follow = CommunityFollowerForm {
 164       community_id: another_inserted_community.id,
 165       user_id: inserted_user.id,
 166       pending: false,
 167     };
 168
 169     CommunityFollower::follow(&conn, &another_community_follow).unwrap();
 170
 171     let new_post = PostForm {
 172       name: "A test post".into(),
 173       url: None,
 174       body: None,
 175       creator_id: inserted_user.id,
 176       community_id: inserted_community.id,
 177       removed: None,
 178       deleted: None,
 179       locked: None,
 180       stickied: None,
 181       nsfw: false,
 182       updated: None,
 183       embed_title: None,
 184       embed_description: None,
 185       embed_html: None,
 186       thumbnail_url: None,
 187       ap_id: None,
 188       local: true,
 189       published: None,
 190     };
 191
 192     let inserted_post = Post::create(&conn, &new_post).unwrap();
 193
 194     let comment_form = CommentForm {
 195       content: "A test comment".into(),
 196       creator_id: inserted_user.id,
 197       post_id: inserted_post.id,
 198       removed: None,
 199       deleted: None,
 200       read: None,
 201       parent_id: None,
 202       published: None,
 203       updated: None,
 204       ap_id: None,
 205       local: true,
 206     };
 207
 208     let inserted_comment = Comment::create(&conn, &comment_form).unwrap();
 209
 210     let child_comment_form = CommentForm {
 211       content: "A test comment".into(),
 212       creator_id: inserted_user.id,
 213       post_id: inserted_post.id,
 214       removed: None,
 215       deleted: None,
 216       read: None,
 217       parent_id: Some(inserted_comment.id),
 218       published: None,
 219       updated: None,
 220       ap_id: None,
 221       local: true,
 222     };
 223
 224     let _inserted_child_comment = Comment::create(&conn, &child_comment_form).unwrap();
 225
 226     let community_aggregates_before_delete =
 227       CommunityAggregates::read(&conn, inserted_community.id).unwrap();
 228
 229     assert_eq!(2, community_aggregates_before_delete.subscribers);
 230     assert_eq!(1, community_aggregates_before_delete.posts);
 231     assert_eq!(2, community_aggregates_before_delete.comments);
 232
 233     // Test the other community
 234     let another_community_aggs =
 235       CommunityAggregates::read(&conn, another_inserted_community.id).unwrap();
 236     assert_eq!(1, another_community_aggs.subscribers);
 237     assert_eq!(0, another_community_aggs.posts);
 238     assert_eq!(0, another_community_aggs.comments);
 239
 240     // Unfollow test
 241     CommunityFollower::unfollow(&conn, &second_user_follow).unwrap();
 242     let after_unfollow = CommunityAggregates::read(&conn, inserted_community.id).unwrap();
 243     assert_eq!(1, after_unfollow.subscribers);
 244
 245     // Follow again just for the later tests
 246     CommunityFollower::follow(&conn, &second_user_follow).unwrap();
 247     let after_follow_again = CommunityAggregates::read(&conn, inserted_community.id).unwrap();
 248     assert_eq!(2, after_follow_again.subscribers);
 249
 250     // Remove a parent comment (the comment count should also be 0)
 251     Post::delete(&conn, inserted_post.id).unwrap();
 252     let after_parent_post_delete = CommunityAggregates::read(&conn, inserted_community.id).unwrap();
 253     assert_eq!(0, after_parent_post_delete.comments);
 254     assert_eq!(0, after_parent_post_delete.posts);
 255
 256     // Remove the 2nd user
 257     User_::delete(&conn, another_inserted_user.id).unwrap();
 258     let after_user_delete = CommunityAggregates::read(&conn, inserted_community.id).unwrap();
 259     assert_eq!(1, after_user_delete.subscribers);
 260
 261     // This should delete all the associated rows, and fire triggers
 262     let user_num_deleted = User_::delete(&conn, inserted_user.id).unwrap();
 263     assert_eq!(1, user_num_deleted);
 264
 265     // Should be none found, since the creator was deleted
 266     let after_delete = CommunityAggregates::read(&conn, inserted_community.id);
 267     assert!(after_delete.is_err());
 268   }
 269 }