crates/db_schema/src/aggregates/community_aggregates.rs

   1 use crate::{newtypes::CommunityId, schema::community_aggregates};
   2 use diesel::{result::Error, *};
   3 use serde::{Deserialize, Serialize};
   4
   5 #[derive(
   6   Queryable, Associations, Identifiable, PartialEq, Debug, Serialize, Deserialize, Clone,
   7 )]
   8 #[table_name = "community_aggregates"]
   9 pub struct CommunityAggregates {
  10   pub id: i32,
  11   pub community_id: CommunityId,
  12   pub subscribers: i64,
  13   pub posts: i64,
  14   pub comments: i64,
  15   pub published: chrono::NaiveDateTime,
  16   pub users_active_day: i64,
  17   pub users_active_week: i64,
  18   pub users_active_month: i64,
  19   pub users_active_half_year: i64,
  20 }
  21
  22 impl CommunityAggregates {
  23   pub fn read(conn: &PgConnection, community_id: CommunityId) -> Result<Self, Error> {
  24     community_aggregates::table
  25       .filter(community_aggregates::community_id.eq(community_id))
  26       .first::<Self>(conn)
  27   }
  28 }
  29
  30 #[cfg(test)]
  31 mod tests {
  32   use crate::{
  33     aggregates::community_aggregates::CommunityAggregates,
  34     establish_unpooled_connection,
  35     source::{
  36       comment::{Comment, CommentForm},
  37       community::{Community, CommunityFollower, CommunityFollowerForm, CommunityForm},
  38       person::{Person, PersonForm},
  39       post::{Post, PostForm},
  40     },
  41     traits::{Crud, Followable},
  42   };
  43   use serial_test::serial;
  44
  45   #[test]
  46   #[serial]
  47   fn test_crud() {
  48     let conn = establish_unpooled_connection();
  49
  50     let new_person = PersonForm {
  51       name: "thommy_community_agg".into(),
  52       ..PersonForm::default()
  53     };
  54
  55     let inserted_person = Person::create(&conn, &new_person).unwrap();
  56
  57     let another_person = PersonForm {
  58       name: "jerry_community_agg".into(),
  59       ..PersonForm::default()
  60     };
  61
  62     let another_inserted_person = Person::create(&conn, &another_person).unwrap();
  63
  64     let new_community = CommunityForm {
  65       name: "TIL_community_agg".into(),
  66       title: "nada".to_owned(),
  67       ..CommunityForm::default()
  68     };
  69
  70     let inserted_community = Community::create(&conn, &new_community).unwrap();
  71
  72     let another_community = CommunityForm {
  73       name: "TIL_community_agg_2".into(),
  74       title: "nada".to_owned(),
  75       ..CommunityForm::default()
  76     };
  77
  78     let another_inserted_community = Community::create(&conn, &another_community).unwrap();
  79
  80     let first_person_follow = CommunityFollowerForm {
  81       community_id: inserted_community.id,
  82       person_id: inserted_person.id,
  83       pending: false,
  84     };
  85
  86     CommunityFollower::follow(&conn, &first_person_follow).unwrap();
  87
  88     let second_person_follow = CommunityFollowerForm {
  89       community_id: inserted_community.id,
  90       person_id: another_inserted_person.id,
  91       pending: false,
  92     };
  93
  94     CommunityFollower::follow(&conn, &second_person_follow).unwrap();
  95
  96     let another_community_follow = CommunityFollowerForm {
  97       community_id: another_inserted_community.id,
  98       person_id: inserted_person.id,
  99       pending: false,
 100     };
 101
 102     CommunityFollower::follow(&conn, &another_community_follow).unwrap();
 103
 104     let new_post = PostForm {
 105       name: "A test post".into(),
 106       creator_id: inserted_person.id,
 107       community_id: inserted_community.id,
 108       ..PostForm::default()
 109     };
 110
 111     let inserted_post = Post::create(&conn, &new_post).unwrap();
 112
 113     let comment_form = CommentForm {
 114       content: "A test comment".into(),
 115       creator_id: inserted_person.id,
 116       post_id: inserted_post.id,
 117       ..CommentForm::default()
 118     };
 119
 120     let inserted_comment = Comment::create(&conn, &comment_form).unwrap();
 121
 122     let child_comment_form = CommentForm {
 123       content: "A test comment".into(),
 124       creator_id: inserted_person.id,
 125       post_id: inserted_post.id,
 126       parent_id: Some(inserted_comment.id),
 127       ..CommentForm::default()
 128     };
 129
 130     let _inserted_child_comment = Comment::create(&conn, &child_comment_form).unwrap();
 131
 132     let community_aggregates_before_delete =
 133       CommunityAggregates::read(&conn, inserted_community.id).unwrap();
 134
 135     assert_eq!(2, community_aggregates_before_delete.subscribers);
 136     assert_eq!(1, community_aggregates_before_delete.posts);
 137     assert_eq!(2, community_aggregates_before_delete.comments);
 138
 139     // Test the other community
 140     let another_community_aggs =
 141       CommunityAggregates::read(&conn, another_inserted_community.id).unwrap();
 142     assert_eq!(1, another_community_aggs.subscribers);
 143     assert_eq!(0, another_community_aggs.posts);
 144     assert_eq!(0, another_community_aggs.comments);
 145
 146     // Unfollow test
 147     CommunityFollower::unfollow(&conn, &second_person_follow).unwrap();
 148     let after_unfollow = CommunityAggregates::read(&conn, inserted_community.id).unwrap();
 149     assert_eq!(1, after_unfollow.subscribers);
 150
 151     // Follow again just for the later tests
 152     CommunityFollower::follow(&conn, &second_person_follow).unwrap();
 153     let after_follow_again = CommunityAggregates::read(&conn, inserted_community.id).unwrap();
 154     assert_eq!(2, after_follow_again.subscribers);
 155
 156     // Remove a parent comment (the comment count should also be 0)
 157     Post::delete(&conn, inserted_post.id).unwrap();
 158     let after_parent_post_delete = CommunityAggregates::read(&conn, inserted_community.id).unwrap();
 159     assert_eq!(0, after_parent_post_delete.comments);
 160     assert_eq!(0, after_parent_post_delete.posts);
 161
 162     // Remove the 2nd person
 163     Person::delete(&conn, another_inserted_person.id).unwrap();
 164     let after_person_delete = CommunityAggregates::read(&conn, inserted_community.id).unwrap();
 165     assert_eq!(1, after_person_delete.subscribers);
 166
 167     // This should delete all the associated rows, and fire triggers
 168     let person_num_deleted = Person::delete(&conn, inserted_person.id).unwrap();
 169     assert_eq!(1, person_num_deleted);
 170
 171     // Delete the community
 172     let community_num_deleted = Community::delete(&conn, inserted_community.id).unwrap();
 173     assert_eq!(1, community_num_deleted);
 174
 175     let another_community_num_deleted =
 176       Community::delete(&conn, another_inserted_community.id).unwrap();
 177     assert_eq!(1, another_community_num_deleted);
 178
 179     // Should be none found, since the creator was deleted
 180     let after_delete = CommunityAggregates::read(&conn, inserted_community.id);
 181     assert!(after_delete.is_err());
 182   }
 183 }