crates/db_schema/src/aggregates/post_aggregates.rs

   1 use crate::{aggregates::structs::PostAggregates, newtypes::PostId, schema::post_aggregates};
   2 use diesel::{result::Error, *};
   3
   4 impl PostAggregates {
   5   pub fn read(conn: &PgConnection, post_id: PostId) -> Result<Self, Error> {
   6     post_aggregates::table
   7       .filter(post_aggregates::post_id.eq(post_id))
   8       .first::<Self>(conn)
   9   }
  10 }
  11
  12 #[cfg(test)]
  13 mod tests {
  14   use crate::{
  15     aggregates::post_aggregates::PostAggregates,
  16     source::{
  17       comment::{Comment, CommentForm},
  18       community::{Community, CommunityForm},
  19       person::{Person, PersonForm},
  20       post::{Post, PostForm, PostLike, PostLikeForm},
  21     },
  22     traits::{Crud, Likeable},
  23     utils::establish_unpooled_connection,
  24   };
  25   use serial_test::serial;
  26
  27   #[test]
  28   #[serial]
  29   fn test_crud() {
  30     let conn = establish_unpooled_connection();
  31
  32     let new_person = PersonForm {
  33       name: "thommy_community_agg".into(),
  34       ..PersonForm::default()
  35     };
  36
  37     let inserted_person = Person::create(&conn, &new_person).unwrap();
  38
  39     let another_person = PersonForm {
  40       name: "jerry_community_agg".into(),
  41       ..PersonForm::default()
  42     };
  43
  44     let another_inserted_person = Person::create(&conn, &another_person).unwrap();
  45
  46     let new_community = CommunityForm {
  47       name: "TIL_community_agg".into(),
  48       title: "nada".to_owned(),
  49       ..CommunityForm::default()
  50     };
  51
  52     let inserted_community = Community::create(&conn, &new_community).unwrap();
  53
  54     let new_post = PostForm {
  55       name: "A test post".into(),
  56       creator_id: inserted_person.id,
  57       community_id: inserted_community.id,
  58       ..PostForm::default()
  59     };
  60
  61     let inserted_post = Post::create(&conn, &new_post).unwrap();
  62
  63     let comment_form = CommentForm {
  64       content: "A test comment".into(),
  65       creator_id: inserted_person.id,
  66       post_id: inserted_post.id,
  67       ..CommentForm::default()
  68     };
  69
  70     let inserted_comment = Comment::create(&conn, &comment_form).unwrap();
  71
  72     let child_comment_form = CommentForm {
  73       content: "A test comment".into(),
  74       creator_id: inserted_person.id,
  75       post_id: inserted_post.id,
  76       parent_id: Some(inserted_comment.id),
  77       ..CommentForm::default()
  78     };
  79
  80     let _inserted_child_comment = Comment::create(&conn, &child_comment_form).unwrap();
  81
  82     let post_like = PostLikeForm {
  83       post_id: inserted_post.id,
  84       person_id: inserted_person.id,
  85       score: 1,
  86     };
  87
  88     PostLike::like(&conn, &post_like).unwrap();
  89
  90     let post_aggs_before_delete = PostAggregates::read(&conn, inserted_post.id).unwrap();
  91
  92     assert_eq!(2, post_aggs_before_delete.comments);
  93     assert_eq!(1, post_aggs_before_delete.score);
  94     assert_eq!(1, post_aggs_before_delete.upvotes);
  95     assert_eq!(0, post_aggs_before_delete.downvotes);
  96
  97     // Add a post dislike from the other person
  98     let post_dislike = PostLikeForm {
  99       post_id: inserted_post.id,
 100       person_id: another_inserted_person.id,
 101       score: -1,
 102     };
 103
 104     PostLike::like(&conn, &post_dislike).unwrap();
 105
 106     let post_aggs_after_dislike = PostAggregates::read(&conn, inserted_post.id).unwrap();
 107
 108     assert_eq!(2, post_aggs_after_dislike.comments);
 109     assert_eq!(0, post_aggs_after_dislike.score);
 110     assert_eq!(1, post_aggs_after_dislike.upvotes);
 111     assert_eq!(1, post_aggs_after_dislike.downvotes);
 112
 113     // Remove the parent comment
 114     Comment::delete(&conn, inserted_comment.id).unwrap();
 115     let after_comment_delete = PostAggregates::read(&conn, inserted_post.id).unwrap();
 116     assert_eq!(0, after_comment_delete.comments);
 117     assert_eq!(0, after_comment_delete.score);
 118     assert_eq!(1, after_comment_delete.upvotes);
 119     assert_eq!(1, after_comment_delete.downvotes);
 120
 121     // Remove the first post like
 122     PostLike::remove(&conn, inserted_person.id, inserted_post.id).unwrap();
 123     let after_like_remove = PostAggregates::read(&conn, inserted_post.id).unwrap();
 124     assert_eq!(0, after_like_remove.comments);
 125     assert_eq!(-1, after_like_remove.score);
 126     assert_eq!(0, after_like_remove.upvotes);
 127     assert_eq!(1, after_like_remove.downvotes);
 128
 129     // This should delete all the associated rows, and fire triggers
 130     Person::delete(&conn, another_inserted_person.id).unwrap();
 131     let person_num_deleted = Person::delete(&conn, inserted_person.id).unwrap();
 132     assert_eq!(1, person_num_deleted);
 133
 134     // Delete the community
 135     let community_num_deleted = Community::delete(&conn, inserted_community.id).unwrap();
 136     assert_eq!(1, community_num_deleted);
 137
 138     // Should be none found, since the creator was deleted
 139     let after_delete = PostAggregates::read(&conn, inserted_post.id);
 140     assert!(after_delete.is_err());
 141   }
 142 }