crates/db_schema/src/aggregates/comment_aggregates.rs

   1 use crate::{newtypes::CommentId, schema::comment_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 = "comment_aggregates"]
   9 pub struct CommentAggregates {
  10   pub id: i32,
  11   pub comment_id: CommentId,
  12   pub score: i64,
  13   pub upvotes: i64,
  14   pub downvotes: i64,
  15   pub published: chrono::NaiveDateTime,
  16 }
  17
  18 impl CommentAggregates {
  19   pub fn read(conn: &PgConnection, comment_id: CommentId) -> Result<Self, Error> {
  20     comment_aggregates::table
  21       .filter(comment_aggregates::comment_id.eq(comment_id))
  22       .first::<Self>(conn)
  23   }
  24 }
  25
  26 #[cfg(test)]
  27 mod tests {
  28   use crate::{
  29     aggregates::comment_aggregates::CommentAggregates,
  30     establish_unpooled_connection,
  31     source::{
  32       comment::{Comment, CommentForm, CommentLike, CommentLikeForm},
  33       community::{Community, CommunityForm},
  34       person::{Person, PersonForm},
  35       post::{Post, PostForm},
  36     },
  37     traits::{Crud, Likeable},
  38   };
  39   use serial_test::serial;
  40
  41   #[test]
  42   #[serial]
  43   fn test_crud() {
  44     let conn = establish_unpooled_connection();
  45
  46     let new_person = PersonForm {
  47       name: "thommy_comment_agg".into(),
  48       ..PersonForm::default()
  49     };
  50
  51     let inserted_person = Person::create(&conn, &new_person).unwrap();
  52
  53     let another_person = PersonForm {
  54       name: "jerry_comment_agg".into(),
  55       ..PersonForm::default()
  56     };
  57
  58     let another_inserted_person = Person::create(&conn, &another_person).unwrap();
  59
  60     let new_community = CommunityForm {
  61       name: "TIL_comment_agg".into(),
  62       title: "nada".to_owned(),
  63       ..CommunityForm::default()
  64     };
  65
  66     let inserted_community = Community::create(&conn, &new_community).unwrap();
  67
  68     let new_post = PostForm {
  69       name: "A test post".into(),
  70       creator_id: inserted_person.id,
  71       community_id: inserted_community.id,
  72       ..PostForm::default()
  73     };
  74
  75     let inserted_post = Post::create(&conn, &new_post).unwrap();
  76
  77     let comment_form = CommentForm {
  78       content: "A test comment".into(),
  79       creator_id: inserted_person.id,
  80       post_id: inserted_post.id,
  81       ..CommentForm::default()
  82     };
  83
  84     let inserted_comment = Comment::create(&conn, &comment_form).unwrap();
  85
  86     let child_comment_form = CommentForm {
  87       content: "A test comment".into(),
  88       creator_id: inserted_person.id,
  89       post_id: inserted_post.id,
  90       parent_id: Some(inserted_comment.id),
  91       ..CommentForm::default()
  92     };
  93
  94     let _inserted_child_comment = Comment::create(&conn, &child_comment_form).unwrap();
  95
  96     let comment_like = CommentLikeForm {
  97       comment_id: inserted_comment.id,
  98       post_id: inserted_post.id,
  99       person_id: inserted_person.id,
 100       score: 1,
 101     };
 102
 103     CommentLike::like(&conn, &comment_like).unwrap();
 104
 105     let comment_aggs_before_delete = CommentAggregates::read(&conn, inserted_comment.id).unwrap();
 106
 107     assert_eq!(1, comment_aggs_before_delete.score);
 108     assert_eq!(1, comment_aggs_before_delete.upvotes);
 109     assert_eq!(0, comment_aggs_before_delete.downvotes);
 110
 111     // Add a post dislike from the other person
 112     let comment_dislike = CommentLikeForm {
 113       comment_id: inserted_comment.id,
 114       post_id: inserted_post.id,
 115       person_id: another_inserted_person.id,
 116       score: -1,
 117     };
 118
 119     CommentLike::like(&conn, &comment_dislike).unwrap();
 120
 121     let comment_aggs_after_dislike = CommentAggregates::read(&conn, inserted_comment.id).unwrap();
 122
 123     assert_eq!(0, comment_aggs_after_dislike.score);
 124     assert_eq!(1, comment_aggs_after_dislike.upvotes);
 125     assert_eq!(1, comment_aggs_after_dislike.downvotes);
 126
 127     // Remove the first comment like
 128     CommentLike::remove(&conn, inserted_person.id, inserted_comment.id).unwrap();
 129     let after_like_remove = CommentAggregates::read(&conn, inserted_comment.id).unwrap();
 130     assert_eq!(-1, after_like_remove.score);
 131     assert_eq!(0, after_like_remove.upvotes);
 132     assert_eq!(1, after_like_remove.downvotes);
 133
 134     // Remove the parent post
 135     Post::delete(&conn, inserted_post.id).unwrap();
 136
 137     // Should be none found, since the post was deleted
 138     let after_delete = CommentAggregates::read(&conn, inserted_comment.id);
 139     assert!(after_delete.is_err());
 140
 141     // This should delete all the associated rows, and fire triggers
 142     Person::delete(&conn, another_inserted_person.id).unwrap();
 143     let person_num_deleted = Person::delete(&conn, inserted_person.id).unwrap();
 144     assert_eq!(1, person_num_deleted);
 145
 146     // Delete the community
 147     let community_num_deleted = Community::delete(&conn, inserted_community.id).unwrap();
 148     assert_eq!(1, community_num_deleted);
 149   }
 150 }