crates/db_queries/src/aggregates/person_aggregates.rs

   1 use diesel::{result::Error, *};
   2 use lemmy_db_schema::{schema::person_aggregates, PersonId};
   3 use serde::{Deserialize, Serialize};
   4
   5 #[derive(
   6   Queryable, Associations, Identifiable, PartialEq, Debug, Serialize, Deserialize, Clone,
   7 )]
   8 #[table_name = "person_aggregates"]
   9 pub struct PersonAggregates {
  10   pub id: i32,
  11   pub person_id: PersonId,
  12   pub post_count: i64,
  13   pub post_score: i64,
  14   pub comment_count: i64,
  15   pub comment_score: i64,
  16 }
  17
  18 impl PersonAggregates {
  19   pub fn read(conn: &PgConnection, person_id: PersonId) -> Result<Self, Error> {
  20     person_aggregates::table
  21       .filter(person_aggregates::person_id.eq(person_id))
  22       .first::<Self>(conn)
  23   }
  24 }
  25
  26 #[cfg(test)]
  27 mod tests {
  28   use crate::{
  29     aggregates::person_aggregates::PersonAggregates,
  30     establish_unpooled_connection,
  31     Crud,
  32     Likeable,
  33   };
  34   use lemmy_db_schema::source::{
  35     comment::{Comment, CommentForm, CommentLike, CommentLikeForm},
  36     community::{Community, CommunityForm},
  37     person::{Person, PersonForm},
  38     post::{Post, PostForm, PostLike, PostLikeForm},
  39   };
  40   use serial_test::serial;
  41
  42   #[test]
  43   #[serial]
  44   fn test_crud() {
  45     let conn = establish_unpooled_connection();
  46
  47     let new_person = PersonForm {
  48       name: "thommy_user_agg".into(),
  49       ..PersonForm::default()
  50     };
  51
  52     let inserted_person = Person::create(&conn, &new_person).unwrap();
  53
  54     let another_person = PersonForm {
  55       name: "jerry_user_agg".into(),
  56       ..PersonForm::default()
  57     };
  58
  59     let another_inserted_person = Person::create(&conn, &another_person).unwrap();
  60
  61     let new_community = CommunityForm {
  62       name: "TIL_site_agg".into(),
  63       title: "nada".to_owned(),
  64       ..CommunityForm::default()
  65     };
  66
  67     let inserted_community = Community::create(&conn, &new_community).unwrap();
  68
  69     let new_post = PostForm {
  70       name: "A test post".into(),
  71       creator_id: inserted_person.id,
  72       community_id: inserted_community.id,
  73       ..PostForm::default()
  74     };
  75
  76     let inserted_post = Post::create(&conn, &new_post).unwrap();
  77
  78     let post_like = PostLikeForm {
  79       post_id: inserted_post.id,
  80       person_id: inserted_person.id,
  81       score: 1,
  82     };
  83
  84     let _inserted_post_like = PostLike::like(&conn, &post_like).unwrap();
  85
  86     let comment_form = CommentForm {
  87       content: "A test comment".into(),
  88       creator_id: inserted_person.id,
  89       post_id: inserted_post.id,
  90       ..CommentForm::default()
  91     };
  92
  93     let inserted_comment = Comment::create(&conn, &comment_form).unwrap();
  94
  95     let mut comment_like = CommentLikeForm {
  96       comment_id: inserted_comment.id,
  97       person_id: inserted_person.id,
  98       post_id: inserted_post.id,
  99       score: 1,
 100     };
 101
 102     let _inserted_comment_like = CommentLike::like(&conn, &comment_like).unwrap();
 103
 104     let mut child_comment_form = CommentForm {
 105       content: "A test comment".into(),
 106       creator_id: inserted_person.id,
 107       post_id: inserted_post.id,
 108       parent_id: Some(inserted_comment.id),
 109       ..CommentForm::default()
 110     };
 111
 112     let inserted_child_comment = Comment::create(&conn, &child_comment_form).unwrap();
 113
 114     let child_comment_like = CommentLikeForm {
 115       comment_id: inserted_child_comment.id,
 116       person_id: another_inserted_person.id,
 117       post_id: inserted_post.id,
 118       score: 1,
 119     };
 120
 121     let _inserted_child_comment_like = CommentLike::like(&conn, &child_comment_like).unwrap();
 122
 123     let person_aggregates_before_delete =
 124       PersonAggregates::read(&conn, inserted_person.id).unwrap();
 125
 126     assert_eq!(1, person_aggregates_before_delete.post_count);
 127     assert_eq!(1, person_aggregates_before_delete.post_score);
 128     assert_eq!(2, person_aggregates_before_delete.comment_count);
 129     assert_eq!(2, person_aggregates_before_delete.comment_score);
 130
 131     // Remove a post like
 132     PostLike::remove(&conn, inserted_person.id, inserted_post.id).unwrap();
 133     let after_post_like_remove = PersonAggregates::read(&conn, inserted_person.id).unwrap();
 134     assert_eq!(0, after_post_like_remove.post_score);
 135
 136     // Remove a parent comment (the scores should also be removed)
 137     Comment::delete(&conn, inserted_comment.id).unwrap();
 138     let after_parent_comment_delete = PersonAggregates::read(&conn, inserted_person.id).unwrap();
 139     assert_eq!(0, after_parent_comment_delete.comment_count);
 140     assert_eq!(0, after_parent_comment_delete.comment_score);
 141
 142     // Add in the two comments again, then delete the post.
 143     let new_parent_comment = Comment::create(&conn, &comment_form).unwrap();
 144     child_comment_form.parent_id = Some(new_parent_comment.id);
 145     Comment::create(&conn, &child_comment_form).unwrap();
 146     comment_like.comment_id = new_parent_comment.id;
 147     CommentLike::like(&conn, &comment_like).unwrap();
 148     let after_comment_add = PersonAggregates::read(&conn, inserted_person.id).unwrap();
 149     assert_eq!(2, after_comment_add.comment_count);
 150     assert_eq!(1, after_comment_add.comment_score);
 151
 152     Post::delete(&conn, inserted_post.id).unwrap();
 153     let after_post_delete = PersonAggregates::read(&conn, inserted_person.id).unwrap();
 154     assert_eq!(0, after_post_delete.comment_score);
 155     assert_eq!(0, after_post_delete.comment_count);
 156     assert_eq!(0, after_post_delete.post_score);
 157     assert_eq!(0, after_post_delete.post_count);
 158
 159     // This should delete all the associated rows, and fire triggers
 160     let person_num_deleted = Person::delete(&conn, inserted_person.id).unwrap();
 161     assert_eq!(1, person_num_deleted);
 162     Person::delete(&conn, another_inserted_person.id).unwrap();
 163
 164     // Delete the community
 165     let community_num_deleted = Community::delete(&conn, inserted_community.id).unwrap();
 166     assert_eq!(1, community_num_deleted);
 167
 168     // Should be none found
 169     let after_delete = PersonAggregates::read(&conn, inserted_person.id);
 170     assert!(after_delete.is_err());
 171   }
 172 }