crates/db_schema/src/aggregates/community_aggregates.rs

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