crates/db_schema/src/aggregates/post_aggregates.rs

   1 use crate::{
   2   aggregates::structs::PostAggregates,
   3   newtypes::PostId,
   4   schema::post_aggregates,
   5   utils::{functions::hot_rank, get_conn, DbPool},
   6 };
   7 use diesel::{result::Error, ExpressionMethods, QueryDsl};
   8 use diesel_async::RunQueryDsl;
   9
  10 impl PostAggregates {
  11   pub async fn read(pool: &DbPool, post_id: PostId) -> Result<Self, Error> {
  12     let conn = &mut get_conn(pool).await?;
  13     post_aggregates::table
  14       .filter(post_aggregates::post_id.eq(post_id))
  15       .first::<Self>(conn)
  16       .await
  17   }
  18
  19   pub async fn update_hot_rank(pool: &DbPool, post_id: PostId) -> Result<Self, Error> {
  20     let conn = &mut get_conn(pool).await?;
  21
  22     diesel::update(post_aggregates::table)
  23       .filter(post_aggregates::post_id.eq(post_id))
  24       .set((
  25         post_aggregates::hot_rank.eq(hot_rank(post_aggregates::score, post_aggregates::published)),
  26         post_aggregates::hot_rank_active.eq(hot_rank(
  27           post_aggregates::score,
  28           post_aggregates::newest_comment_time_necro,
  29         )),
  30       ))
  31       .get_result::<Self>(conn)
  32       .await
  33   }
  34 }
  35
  36 #[cfg(test)]
  37 mod tests {
  38   use crate::{
  39     aggregates::post_aggregates::PostAggregates,
  40     source::{
  41       comment::{Comment, CommentInsertForm},
  42       community::{Community, CommunityInsertForm},
  43       instance::Instance,
  44       person::{Person, PersonInsertForm},
  45       post::{Post, PostInsertForm, PostLike, PostLikeForm},
  46     },
  47     traits::{Crud, Likeable},
  48     utils::build_db_pool_for_tests,
  49   };
  50   use serial_test::serial;
  51
  52   #[tokio::test]
  53   #[serial]
  54   async fn test_crud() {
  55     let pool = &build_db_pool_for_tests().await;
  56
  57     let inserted_instance = Instance::read_or_create(pool, "my_domain.tld".to_string())
  58       .await
  59       .unwrap();
  60
  61     let new_person = PersonInsertForm::builder()
  62       .name("thommy_community_agg".into())
  63       .public_key("pubkey".to_string())
  64       .instance_id(inserted_instance.id)
  65       .build();
  66
  67     let inserted_person = Person::create(pool, &new_person).await.unwrap();
  68
  69     let another_person = PersonInsertForm::builder()
  70       .name("jerry_community_agg".into())
  71       .public_key("pubkey".to_string())
  72       .instance_id(inserted_instance.id)
  73       .build();
  74
  75     let another_inserted_person = Person::create(pool, &another_person).await.unwrap();
  76
  77     let new_community = CommunityInsertForm::builder()
  78       .name("TIL_community_agg".into())
  79       .title("nada".to_owned())
  80       .public_key("pubkey".to_string())
  81       .instance_id(inserted_instance.id)
  82       .build();
  83
  84     let inserted_community = Community::create(pool, &new_community).await.unwrap();
  85
  86     let new_post = PostInsertForm::builder()
  87       .name("A test post".into())
  88       .creator_id(inserted_person.id)
  89       .community_id(inserted_community.id)
  90       .build();
  91
  92     let inserted_post = Post::create(pool, &new_post).await.unwrap();
  93
  94     let comment_form = CommentInsertForm::builder()
  95       .content("A test comment".into())
  96       .creator_id(inserted_person.id)
  97       .post_id(inserted_post.id)
  98       .build();
  99
 100     let inserted_comment = Comment::create(pool, &comment_form, None).await.unwrap();
 101
 102     let child_comment_form = CommentInsertForm::builder()
 103       .content("A test comment".into())
 104       .creator_id(inserted_person.id)
 105       .post_id(inserted_post.id)
 106       .build();
 107
 108     let inserted_child_comment =
 109       Comment::create(pool, &child_comment_form, Some(&inserted_comment.path))
 110         .await
 111         .unwrap();
 112
 113     let post_like = PostLikeForm {
 114       post_id: inserted_post.id,
 115       person_id: inserted_person.id,
 116       score: 1,
 117     };
 118
 119     PostLike::like(pool, &post_like).await.unwrap();
 120
 121     let post_aggs_before_delete = PostAggregates::read(pool, inserted_post.id).await.unwrap();
 122
 123     assert_eq!(2, post_aggs_before_delete.comments);
 124     assert_eq!(1, post_aggs_before_delete.score);
 125     assert_eq!(1, post_aggs_before_delete.upvotes);
 126     assert_eq!(0, post_aggs_before_delete.downvotes);
 127
 128     // Add a post dislike from the other person
 129     let post_dislike = PostLikeForm {
 130       post_id: inserted_post.id,
 131       person_id: another_inserted_person.id,
 132       score: -1,
 133     };
 134
 135     PostLike::like(pool, &post_dislike).await.unwrap();
 136
 137     let post_aggs_after_dislike = PostAggregates::read(pool, inserted_post.id).await.unwrap();
 138
 139     assert_eq!(2, post_aggs_after_dislike.comments);
 140     assert_eq!(0, post_aggs_after_dislike.score);
 141     assert_eq!(1, post_aggs_after_dislike.upvotes);
 142     assert_eq!(1, post_aggs_after_dislike.downvotes);
 143
 144     // Remove the comments
 145     Comment::delete(pool, inserted_comment.id).await.unwrap();
 146     Comment::delete(pool, inserted_child_comment.id)
 147       .await
 148       .unwrap();
 149     let after_comment_delete = PostAggregates::read(pool, inserted_post.id).await.unwrap();
 150     assert_eq!(0, after_comment_delete.comments);
 151     assert_eq!(0, after_comment_delete.score);
 152     assert_eq!(1, after_comment_delete.upvotes);
 153     assert_eq!(1, after_comment_delete.downvotes);
 154
 155     // Remove the first post like
 156     PostLike::remove(pool, inserted_person.id, inserted_post.id)
 157       .await
 158       .unwrap();
 159     let after_like_remove = PostAggregates::read(pool, inserted_post.id).await.unwrap();
 160     assert_eq!(0, after_like_remove.comments);
 161     assert_eq!(-1, after_like_remove.score);
 162     assert_eq!(0, after_like_remove.upvotes);
 163     assert_eq!(1, after_like_remove.downvotes);
 164
 165     // This should delete all the associated rows, and fire triggers
 166     Person::delete(pool, another_inserted_person.id)
 167       .await
 168       .unwrap();
 169     let person_num_deleted = Person::delete(pool, inserted_person.id).await.unwrap();
 170     assert_eq!(1, person_num_deleted);
 171
 172     // Delete the community
 173     let community_num_deleted = Community::delete(pool, inserted_community.id)
 174       .await
 175       .unwrap();
 176     assert_eq!(1, community_num_deleted);
 177
 178     // Should be none found, since the creator was deleted
 179     let after_delete = PostAggregates::read(pool, inserted_post.id).await;
 180     assert!(after_delete.is_err());
 181
 182     Instance::delete(pool, inserted_instance.id).await.unwrap();
 183   }
 184 }