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