lemmy/server/src/db/post_view.rs

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use super::*;
#[derive(EnumString,ToString,Debug, Serialize, Deserialize)]
pub enum PostListingType {
All, Subscribed, Community
}
// 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,
removed -> Bool,
locked -> Bool,
published -> Timestamp,
updated -> Nullable<Timestamp>,
deleted -> Bool,
creator_name -> Varchar,
community_name -> Varchar,
community_removed -> Bool,
community_deleted -> Bool,
number_of_comments -> BigInt,
score -> BigInt,
upvotes -> BigInt,
downvotes -> BigInt,
hot_rank -> Int4,
user_id -> Nullable<Int4>,
my_vote -> Nullable<Int4>,
subscribed -> Nullable<Bool>,
read -> Nullable<Bool>,
saved -> Nullable<Bool>,
}
}
#[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 removed: bool,
pub locked: bool,
pub published: chrono::NaiveDateTime,
pub updated: Option<chrono::NaiveDateTime>,
pub deleted: bool,
pub creator_name: String,
pub community_name: String,
pub community_removed: bool,
pub community_deleted: bool,
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>,
pub subscribed: Option<bool>,
pub read: Option<bool>,
pub saved: Option<bool>,
}
impl PostView {
pub fn list(conn: &PgConnection,
type_: PostListingType,
sort: &SortType,
for_community_id: Option<i32>,
for_creator_id: Option<i32>,
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search_term: Option<String>,
my_user_id: Option<i32>,
saved_only: bool,
unread_only: bool,
page: Option<i64>,
limit: Option<i64>,
) -> Result<Vec<Self>, Error> {
use super::post_view::post_view::dsl::*;
let (limit, offset) = limit_and_offset(page, limit);
let mut query = post_view.into_boxed();
if let Some(for_community_id) = for_community_id {
query = query.filter(community_id.eq(for_community_id));
};
if let Some(for_creator_id) = for_creator_id {
query = query.filter(creator_id.eq(for_creator_id));
};
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if let Some(search_term) = search_term {
query = query.filter(name.ilike(fuzzy_search(&search_term)));
};
// TODO these are wrong, bc they'll only show saved for your logged in user, not theirs
if saved_only {
query = query.filter(saved.eq(true));
};
if unread_only {
query = query.filter(read.eq(false));
};
match type_ {
PostListingType::Subscribed => {
query = query.filter(subscribed.eq(true));
},
_ => {}
};
// The view lets you pass a null user_id, if you're not logged in
if let Some(my_user_id) = my_user_id {
query = query.filter(user_id.eq(my_user_id));
} else {
query = query.filter(user_id.is_null());
}
query = match sort {
SortType::Hot => query.order_by(hot_rank.desc()),
SortType::New => query.order_by(published.desc()),
SortType::TopAll => query.order_by(score.desc()),
SortType::TopYear => query
.filter(published.gt(now - 1.years()))
.order_by(score.desc()),
SortType::TopMonth => query
.filter(published.gt(now - 1.months()))
.order_by(score.desc()),
SortType::TopWeek => query
.filter(published.gt(now - 1.weeks()))
.order_by(score.desc()),
SortType::TopDay => query
.filter(published.gt(now - 1.days()))
.order_by(score.desc())
};
query = query
.limit(limit)
.offset(offset)
.filter(removed.eq(false))
.filter(deleted.eq(false))
.filter(community_removed.eq(false))
.filter(community_deleted.eq(false));
query.load::<Self>(conn)
}
pub fn read(conn: &PgConnection, from_post_id: i32, my_user_id: Option<i32>) -> Result<Self, Error> {
use super::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(my_user_id) = my_user_id {
query = query.filter(user_id.eq(my_user_id));
} else {
query = query.filter(user_id.is_null());
};
query.first::<Self>(conn)
}
}
#[cfg(test)]
mod tests {
use super::*;
use super::super::community::*;
use super::super::user::*;
use super::super::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,
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admin: false,
banned: false,
};
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,
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removed: None,
deleted: None,
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,
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removed: None,
deleted: None,
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locked: None,
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,
removed: false,
deleted: false,
locked: false,
community_name: community_name.to_owned(),
community_removed: false,
community_deleted: false,
number_of_comments: 0,
score: 1,
upvotes: 1,
downvotes: 0,
hot_rank: 1728,
published: inserted_post.published,
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updated: None,
subscribed: None,
read: None,
saved: 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,
removed: false,
deleted: false,
locked: false,
creator_id: inserted_user.id,
creator_name: user_name.to_owned(),
community_id: inserted_community.id,
community_name: community_name.to_owned(),
community_removed: false,
community_deleted: false,
number_of_comments: 0,
score: 1,
upvotes: 1,
downvotes: 0,
hot_rank: 1728,
published: inserted_post.published,
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updated: None,
subscribed: None,
read: None,
saved: None,
};
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let read_post_listings_with_user = PostView::list(&conn,
PostListingType::Community,
&SortType::New, Some(inserted_community.id),
None,
None,
Some(inserted_user.id),
false,
false,
None,
None).unwrap();
let read_post_listings_no_user = PostView::list(&conn,
PostListingType::Community,
&SortType::New,
Some(inserted_community.id),
None,
None,
None,
false,
false,
None,
None).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);
}
}