lemmy/server/src/actions/post_view.rs
Dessalines 2c66d86e26 Adding subscribe to communities.
- Adding subscribe. Fixes #12. Fixes #27.
2019-04-04 23:26:38 -07:00

263 lines
7.7 KiB
Rust

extern crate diesel;
use diesel::*;
use diesel::result::Error;
use serde::{Deserialize, Serialize};
#[derive(EnumString,ToString,Debug, Serialize, Deserialize)]
pub enum ListingType {
All, Subscribed, Community
}
#[derive(EnumString,ToString,Debug, Serialize, Deserialize)]
pub enum ListingSortType {
Hot, New, TopDay, TopWeek, TopMonth, TopYear, TopAll
}
// The faked schema since diesel doesn't do views
table! {
post_view (id) {
id -> Int4,
name -> Varchar,
url -> Nullable<Text>,
body -> Nullable<Text>,
creator_id -> Int4,
community_id -> Int4,
published -> Timestamp,
updated -> Nullable<Timestamp>,
creator_name -> Varchar,
community_name -> Varchar,
number_of_comments -> BigInt,
score -> BigInt,
upvotes -> BigInt,
downvotes -> BigInt,
hot_rank -> Int4,
user_id -> Nullable<Int4>,
my_vote -> Nullable<Int4>,
}
}
#[derive(Queryable, Identifiable, PartialEq, Debug, Serialize, Deserialize,QueryableByName,Clone)]
#[table_name="post_view"]
pub struct PostView {
pub id: i32,
pub name: String,
pub url: Option<String>,
pub body: Option<String>,
pub creator_id: i32,
pub community_id: i32,
pub published: chrono::NaiveDateTime,
pub updated: Option<chrono::NaiveDateTime>,
pub creator_name: String,
pub community_name: String,
pub number_of_comments: i64,
pub score: i64,
pub upvotes: i64,
pub downvotes: i64,
pub hot_rank: i32,
pub user_id: Option<i32>,
pub my_vote: Option<i32>,
}
impl PostView {
pub fn list(conn: &PgConnection, type_: ListingType, sort: ListingSortType, from_community_id: Option<i32>, from_user_id: Option<i32>, limit: i64) -> Result<Vec<Self>, Error> {
use actions::post_view::post_view::dsl::*;
use diesel::dsl::*;
use diesel::prelude::*;
let mut query = post_view.limit(limit).into_boxed();
if let Some(from_community_id) = from_community_id {
query = query.filter(community_id.eq(from_community_id));
};
// The view lets you pass a null user_id, if you're not logged in
if let Some(from_user_id) = from_user_id {
query = query.filter(user_id.eq(from_user_id));
} else {
query = query.filter(user_id.is_null());
}
query = match sort {
ListingSortType::Hot => query.order_by(hot_rank.desc()),
ListingSortType::New => query.order_by(published.desc()),
ListingSortType::TopAll => query.order_by(score.desc()),
ListingSortType::TopYear => query
.filter(published.gt(now - 1.years()))
.order_by(score.desc()),
ListingSortType::TopMonth => query
.filter(published.gt(now - 1.months()))
.order_by(score.desc()),
ListingSortType::TopWeek => query
.filter(published.gt(now - 1.weeks()))
.order_by(score.desc()),
ListingSortType::TopDay => query
.filter(published.gt(now - 1.days()))
.order_by(score.desc())
};
query.load::<Self>(conn)
}
pub fn read(conn: &PgConnection, from_post_id: i32, from_user_id: Option<i32>) -> Result<Self, Error> {
use actions::post_view::post_view::dsl::*;
use diesel::prelude::*;
let mut query = post_view.into_boxed();
query = query.filter(id.eq(from_post_id));
if let Some(from_user_id) = from_user_id {
query = query.filter(user_id.eq(from_user_id));
} else {
query = query.filter(user_id.is_null());
};
query.first::<Self>(conn)
}
}
#[cfg(test)]
mod tests {
use {establish_connection, Crud, Likeable};
use super::*;
use actions::community::*;
use actions::user::*;
use actions::post::*;
#[test]
fn test_crud() {
let conn = establish_connection();
let user_name = "tegan".to_string();
let community_name = "test_community_3".to_string();
let post_name = "test post 3".to_string();
let new_user = UserForm {
name: user_name.to_owned(),
fedi_name: "rrf".into(),
preferred_username: None,
password_encrypted: "nope".into(),
email: None,
updated: None
};
let inserted_user = User_::create(&conn, &new_user).unwrap();
let new_community = CommunityForm {
name: community_name.to_owned(),
title: "nada".to_owned(),
description: None,
creator_id: inserted_user.id,
category_id: 1,
updated: None
};
let inserted_community = Community::create(&conn, &new_community).unwrap();
let new_post = PostForm {
name: post_name.to_owned(),
url: None,
body: None,
creator_id: inserted_user.id,
community_id: inserted_community.id,
updated: None
};
let inserted_post = Post::create(&conn, &new_post).unwrap();
let post_like_form = PostLikeForm {
post_id: inserted_post.id,
user_id: inserted_user.id,
score: 1
};
let inserted_post_like = PostLike::like(&conn, &post_like_form).unwrap();
let expected_post_like = PostLike {
id: inserted_post_like.id,
post_id: inserted_post.id,
user_id: inserted_user.id,
published: inserted_post_like.published,
score: 1
};
let post_like_form = PostLikeForm {
post_id: inserted_post.id,
user_id: inserted_user.id,
score: 1
};
// the non user version
let expected_post_listing_no_user = PostView {
user_id: None,
my_vote: None,
id: inserted_post.id,
name: post_name.to_owned(),
url: None,
body: None,
creator_id: inserted_user.id,
creator_name: user_name.to_owned(),
community_id: inserted_community.id,
community_name: community_name.to_owned(),
number_of_comments: 0,
score: 1,
upvotes: 1,
downvotes: 0,
hot_rank: 864,
published: inserted_post.published,
updated: None
};
let expected_post_listing_with_user = PostView {
user_id: Some(inserted_user.id),
my_vote: Some(1),
id: inserted_post.id,
name: post_name.to_owned(),
url: None,
body: None,
creator_id: inserted_user.id,
creator_name: user_name.to_owned(),
community_id: inserted_community.id,
community_name: community_name.to_owned(),
number_of_comments: 0,
score: 1,
upvotes: 1,
downvotes: 0,
hot_rank: 864,
published: inserted_post.published,
updated: None
};
let read_post_listings_with_user = PostView::list(&conn, ListingType::Community, ListingSortType::New, Some(inserted_community.id), Some(inserted_user.id), 10).unwrap();
let read_post_listings_no_user = PostView::list(&conn, ListingType::Community, ListingSortType::New, Some(inserted_community.id), None, 10).unwrap();
let read_post_listing_no_user = PostView::read(&conn, inserted_post.id, None).unwrap();
let read_post_listing_with_user = PostView::read(&conn, inserted_post.id, Some(inserted_user.id)).unwrap();
let like_removed = PostLike::remove(&conn, &post_like_form).unwrap();
let num_deleted = Post::delete(&conn, inserted_post.id).unwrap();
Community::delete(&conn, inserted_community.id).unwrap();
User_::delete(&conn, inserted_user.id).unwrap();
// The with user
assert_eq!(expected_post_listing_with_user, read_post_listings_with_user[0]);
assert_eq!(expected_post_listing_with_user, read_post_listing_with_user);
assert_eq!(1, read_post_listings_with_user.len());
// Without the user
assert_eq!(expected_post_listing_no_user, read_post_listings_no_user[0]);
assert_eq!(expected_post_listing_no_user, read_post_listing_no_user);
assert_eq!(1, read_post_listings_no_user.len());
// assert_eq!(expected_post, inserted_post);
// assert_eq!(expected_post, updated_post);
assert_eq!(expected_post_like, inserted_post_like);
assert_eq!(1, like_removed);
assert_eq!(1, num_deleted);
}
}