lemmy/crates/db_schema/src/aggregates/community_aggregates.rs

184 lines
6.0 KiB
Rust

use crate::{newtypes::CommunityId, schema::community_aggregates};
use diesel::{result::Error, *};
use serde::{Deserialize, Serialize};
#[derive(
Queryable, Associations, Identifiable, PartialEq, Debug, Serialize, Deserialize, Clone,
)]
#[table_name = "community_aggregates"]
pub struct CommunityAggregates {
pub id: i32,
pub community_id: CommunityId,
pub subscribers: i64,
pub posts: i64,
pub comments: i64,
pub published: chrono::NaiveDateTime,
pub users_active_day: i64,
pub users_active_week: i64,
pub users_active_month: i64,
pub users_active_half_year: i64,
}
impl CommunityAggregates {
pub fn read(conn: &PgConnection, community_id: CommunityId) -> Result<Self, Error> {
community_aggregates::table
.filter(community_aggregates::community_id.eq(community_id))
.first::<Self>(conn)
}
}
#[cfg(test)]
mod tests {
use crate::{
aggregates::community_aggregates::CommunityAggregates,
establish_unpooled_connection,
source::{
comment::{Comment, CommentForm},
community::{Community, CommunityFollower, CommunityFollowerForm, CommunityForm},
person::{Person, PersonForm},
post::{Post, PostForm},
},
traits::{Crud, Followable},
};
use serial_test::serial;
#[test]
#[serial]
fn test_crud() {
let conn = establish_unpooled_connection();
let new_person = PersonForm {
name: "thommy_community_agg".into(),
..PersonForm::default()
};
let inserted_person = Person::create(&conn, &new_person).unwrap();
let another_person = PersonForm {
name: "jerry_community_agg".into(),
..PersonForm::default()
};
let another_inserted_person = Person::create(&conn, &another_person).unwrap();
let new_community = CommunityForm {
name: "TIL_community_agg".into(),
title: "nada".to_owned(),
..CommunityForm::default()
};
let inserted_community = Community::create(&conn, &new_community).unwrap();
let another_community = CommunityForm {
name: "TIL_community_agg_2".into(),
title: "nada".to_owned(),
..CommunityForm::default()
};
let another_inserted_community = Community::create(&conn, &another_community).unwrap();
let first_person_follow = CommunityFollowerForm {
community_id: inserted_community.id,
person_id: inserted_person.id,
pending: false,
};
CommunityFollower::follow(&conn, &first_person_follow).unwrap();
let second_person_follow = CommunityFollowerForm {
community_id: inserted_community.id,
person_id: another_inserted_person.id,
pending: false,
};
CommunityFollower::follow(&conn, &second_person_follow).unwrap();
let another_community_follow = CommunityFollowerForm {
community_id: another_inserted_community.id,
person_id: inserted_person.id,
pending: false,
};
CommunityFollower::follow(&conn, &another_community_follow).unwrap();
let new_post = PostForm {
name: "A test post".into(),
creator_id: inserted_person.id,
community_id: inserted_community.id,
..PostForm::default()
};
let inserted_post = Post::create(&conn, &new_post).unwrap();
let comment_form = CommentForm {
content: "A test comment".into(),
creator_id: inserted_person.id,
post_id: inserted_post.id,
..CommentForm::default()
};
let inserted_comment = Comment::create(&conn, &comment_form).unwrap();
let child_comment_form = CommentForm {
content: "A test comment".into(),
creator_id: inserted_person.id,
post_id: inserted_post.id,
parent_id: Some(inserted_comment.id),
..CommentForm::default()
};
let _inserted_child_comment = Comment::create(&conn, &child_comment_form).unwrap();
let community_aggregates_before_delete =
CommunityAggregates::read(&conn, inserted_community.id).unwrap();
assert_eq!(2, community_aggregates_before_delete.subscribers);
assert_eq!(1, community_aggregates_before_delete.posts);
assert_eq!(2, community_aggregates_before_delete.comments);
// Test the other community
let another_community_aggs =
CommunityAggregates::read(&conn, another_inserted_community.id).unwrap();
assert_eq!(1, another_community_aggs.subscribers);
assert_eq!(0, another_community_aggs.posts);
assert_eq!(0, another_community_aggs.comments);
// Unfollow test
CommunityFollower::unfollow(&conn, &second_person_follow).unwrap();
let after_unfollow = CommunityAggregates::read(&conn, inserted_community.id).unwrap();
assert_eq!(1, after_unfollow.subscribers);
// Follow again just for the later tests
CommunityFollower::follow(&conn, &second_person_follow).unwrap();
let after_follow_again = CommunityAggregates::read(&conn, inserted_community.id).unwrap();
assert_eq!(2, after_follow_again.subscribers);
// Remove a parent comment (the comment count should also be 0)
Post::delete(&conn, inserted_post.id).unwrap();
let after_parent_post_delete = CommunityAggregates::read(&conn, inserted_community.id).unwrap();
assert_eq!(0, after_parent_post_delete.comments);
assert_eq!(0, after_parent_post_delete.posts);
// Remove the 2nd person
Person::delete(&conn, another_inserted_person.id).unwrap();
let after_person_delete = CommunityAggregates::read(&conn, inserted_community.id).unwrap();
assert_eq!(1, after_person_delete.subscribers);
// This should delete all the associated rows, and fire triggers
let person_num_deleted = Person::delete(&conn, inserted_person.id).unwrap();
assert_eq!(1, person_num_deleted);
// Delete the community
let community_num_deleted = Community::delete(&conn, inserted_community.id).unwrap();
assert_eq!(1, community_num_deleted);
let another_community_num_deleted =
Community::delete(&conn, another_inserted_community.id).unwrap();
assert_eq!(1, another_community_num_deleted);
// Should be none found, since the creator was deleted
let after_delete = CommunityAggregates::read(&conn, inserted_community.id);
assert!(after_delete.is_err());
}
}