Hexbear is the engine that powers Chapochat. It is a customization of the Lemmy project.
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// TODO, remove the cross join here, just join to user directly
use crate::{fuzzy_search, limit_and_offset, ListingType, MaybeOptional, SortType};
use diesel::{dsl::*, pg::Pg, result::Error, *};
use serde::{Deserialize, Serialize};
table! {
hexbear.comment_fast_view (id) {
id -> Int4,
creator_id -> Int4,
post_id -> Int4,
post_name -> Varchar,
parent_id -> Nullable<Int4>,
content -> Text,
removed -> Bool,
read -> Bool,
published -> Timestamp,
updated -> Nullable<Timestamp>,
deleted -> Bool,
ap_id -> Text,
local -> Bool,
community_id -> Int4,
community_actor_id -> Text,
community_local -> Bool,
community_name -> Varchar,
community_icon -> Nullable<Text>,
community_hide_from_all -> Bool,
banned -> Bool,
banned_from_community -> Bool,
creator_actor_id -> Text,
creator_local -> Bool,
creator_name -> Varchar,
creator_preferred_username -> Nullable<Varchar>,
creator_published -> Timestamp,
creator_avatar -> Nullable<Text>,
creator_tags -> Nullable<Jsonb>,
creator_community_tags -> Nullable<Jsonb>,
score -> BigInt,
upvotes -> BigInt,
downvotes -> BigInt,
hot_rank -> Int4,
hot_rank_active -> Int4,
user_id -> Nullable<Int4>,
my_vote -> Nullable<Int4>,
subscribed -> Nullable<Bool>,
saved -> Nullable<Bool>,
}
}
#[derive(
Queryable, Identifiable, PartialEq, Debug, Serialize, Deserialize, QueryableByName, Clone,
)]
#[table_name = "comment_fast_view"]
pub struct CommentView {
pub id: i32,
pub creator_id: i32,
pub post_id: i32,
pub post_name: String,
pub parent_id: Option<i32>,
pub content: String,
pub removed: bool,
pub read: bool,
pub published: chrono::NaiveDateTime,
pub updated: Option<chrono::NaiveDateTime>,
pub deleted: bool,
pub ap_id: String,
pub local: bool,
pub community_id: i32,
pub community_actor_id: String,
pub community_local: bool,
pub community_name: String,
pub community_icon: Option<String>,
pub community_hide_from_all: bool,
pub banned: bool,
pub banned_from_community: bool,
pub creator_actor_id: String,
pub creator_local: bool,
pub creator_name: String,
pub creator_preferred_username: Option<String>,
pub creator_published: chrono::NaiveDateTime,
pub creator_avatar: Option<String>,
pub creator_tags: Option<serde_json::Value>,
pub creator_community_tags: Option<serde_json::Value>,
pub score: i64,
pub upvotes: i64,
pub downvotes: i64,
pub hot_rank: i32,
pub hot_rank_active: i32,
pub user_id: Option<i32>,
pub my_vote: Option<i32>,
pub subscribed: Option<bool>,
pub saved: Option<bool>,
}
pub struct CommentQueryBuilder<'a> {
conn: &'a PgConnection,
query: super::comment_view::comment_fast_view::BoxedQuery<'a, Pg>,
listing_type: ListingType,
sort: &'a SortType,
for_community_id: Option<i32>,
for_post_id: Option<i32>,
for_comment_ids: Option<Vec<i32>>,
for_creator_id: Option<i32>,
search_term: Option<String>,
my_user_id: Option<i32>,
saved_only: bool,
max_age: Option<i32>,
page: Option<i64>,
limit: Option<i64>,
}
impl<'a> CommentQueryBuilder<'a> {
pub fn create(conn: &'a PgConnection) -> Self {
use super::comment_view::comment_fast_view::dsl::*;
let query = comment_fast_view.into_boxed();
CommentQueryBuilder {
conn,
query,
listing_type: ListingType::All,
sort: &SortType::New,
for_community_id: None,
for_post_id: None,
for_comment_ids: None,
for_creator_id: None,
search_term: None,
my_user_id: None,
saved_only: false,
max_age: None,
page: None,
limit: None,
}
}
pub fn listing_type(mut self, listing_type: ListingType) -> Self {
self.listing_type = listing_type;
self
}
pub fn sort(mut self, sort: &'a SortType) -> Self {
self.sort = sort;
self
}
pub fn for_post_id<T: MaybeOptional<i32>>(mut self, for_post_id: T) -> Self {
self.for_post_id = for_post_id.get_optional();
self
}
pub fn for_comment_ids<T: MaybeOptional<Vec<i32>>>(mut self, for_comment_ids: T) -> Self {
self.for_comment_ids = for_comment_ids.get_optional();
self
}
pub fn for_creator_id<T: MaybeOptional<i32>>(mut self, for_creator_id: T) -> Self {
self.for_creator_id = for_creator_id.get_optional();
self
}
pub fn for_community_id<T: MaybeOptional<i32>>(mut self, for_community_id: T) -> Self {
self.for_community_id = for_community_id.get_optional();
self
}
pub fn search_term<T: MaybeOptional<String>>(mut self, search_term: T) -> Self {
self.search_term = search_term.get_optional();
self
}
pub fn my_user_id<T: MaybeOptional<i32>>(mut self, my_user_id: T) -> Self {
self.my_user_id = my_user_id.get_optional();
self
}
pub fn saved_only(mut self, saved_only: bool) -> Self {
self.saved_only = saved_only;
self
}
pub fn max_age<T: MaybeOptional<i32>>(mut self, max_age: T) -> Self {
self.max_age = max_age.get_optional();
self
}
pub fn page<T: MaybeOptional<i64>>(mut self, page: T) -> Self {
self.page = page.get_optional();
self
}
pub fn limit<T: MaybeOptional<i64>>(mut self, limit: T) -> Self {
self.limit = limit.get_optional();
self
}
pub fn list(self) -> Result<Vec<CommentView>, Error> {
use super::comment_view::comment_fast_view::dsl::*;
let mut query = self.query;
// The view lets you pass a null user_id, if you're not logged in
if let Some(my_user_id) = self.my_user_id {
query = query.filter(user_id.eq(my_user_id));
} else {
query = query.filter(user_id.is_null());
}
if let Some(for_creator_id) = self.for_creator_id {
query = query.filter(creator_id.eq(for_creator_id));
};
if let Some(for_community_id) = self.for_community_id {
query = query.filter(community_id.eq(for_community_id));
}
if let Some(for_post_id) = self.for_post_id {
query = query.filter(post_id.eq(for_post_id));
};
if let Some(ref for_comment_ids) = self.for_comment_ids {
query = query.filter(id.eq_any(for_comment_ids));
};
if let Some(search_term) = self.search_term {
query = query.filter(content.ilike(fuzzy_search(&search_term)));
};
//in these cases listingtype doesn't matter
if self.for_post_id.is_none()
&& self.for_comment_ids.is_none()
&& self.for_community_id.is_none()
&& self.for_creator_id.is_none()
{
query = match self.listing_type {
ListingType::Subscribed => query.filter(subscribed.eq(true)),
ListingType::Local => query.filter(community_local.eq(true)),
ListingType::All => query.filter(community_hide_from_all.eq(false).or(subscribed.eq(true))),
_ => query,
};
}
if self.saved_only {
query = query.filter(saved.eq(true));
}
if let Some(max_age) = self.max_age {
query = query.filter(published.gt(now - max_age.days()))
};
query = match self.sort {
SortType::Hot => query
.order_by(hot_rank.desc())
.then_order_by(published.desc()),
SortType::Active => query
.order_by(hot_rank_active.desc())
.then_order_by(published.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.order_by(published.desc()),
};
let (limit, offset) = limit_and_offset(self.page, self.limit);
// Note: deleted and removed comments are done on the front side
query
.limit(limit)
.offset(offset)
.load::<CommentView>(self.conn)
}
}
impl CommentView {
pub fn read(
conn: &PgConnection,
from_comment_id: i32,
my_user_id: Option<i32>,
) -> Result<Self, Error> {
use super::comment_view::comment_fast_view::dsl::*;
let mut query = comment_fast_view.into_boxed();
// 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 = query
.filter(id.eq(from_comment_id))
.order_by(published.desc());
query.first::<Self>(conn)
}
}
// The faked schema since diesel doesn't do views
table! {
hexbear.reply_fast_view (id) {
id -> Int4,
creator_id -> Int4,
post_id -> Int4,
post_name -> Varchar,
parent_id -> Nullable<Int4>,
content -> Text,
removed -> Bool,
read -> Bool,
published -> Timestamp,
updated -> Nullable<Timestamp>,
deleted -> Bool,
ap_id -> Text,
local -> Bool,
community_id -> Int4,
community_actor_id -> Text,
community_local -> Bool,
community_name -> Varchar,
community_icon -> Nullable<Varchar>,
banned -> Bool,
banned_from_community -> Bool,
creator_actor_id -> Text,
creator_local -> Bool,
creator_name -> Varchar,
creator_preferred_username -> Nullable<Varchar>,
creator_avatar -> Nullable<Text>,
creator_tags -> Nullable<Jsonb>,
creator_community_tags -> Nullable<Jsonb>,
creator_published -> Timestamp,
score -> BigInt,
upvotes -> BigInt,
downvotes -> BigInt,
hot_rank -> Int4,
hot_rank_active -> Int4,
user_id -> Nullable<Int4>,
my_vote -> Nullable<Int4>,
subscribed -> Nullable<Bool>,
saved -> Nullable<Bool>,
recipient_id -> Int4,
}
}
#[derive(
Queryable, Identifiable, PartialEq, Debug, Serialize, Deserialize, QueryableByName, Clone,
)]
#[table_name = "reply_fast_view"]
pub struct ReplyView {
pub id: i32,
pub creator_id: i32,
pub post_id: i32,
pub post_name: String,
pub parent_id: Option<i32>,
pub content: String,
pub removed: bool,
pub read: bool,
pub published: chrono::NaiveDateTime,
pub updated: Option<chrono::NaiveDateTime>,
pub deleted: bool,
pub ap_id: String,
pub local: bool,
pub community_id: i32,
pub community_actor_id: String,
pub community_local: bool,
pub community_name: String,
pub community_icon: Option<String>,
pub banned: bool,
pub banned_from_community: bool,
pub creator_actor_id: String,
pub creator_local: bool,
pub creator_name: String,
pub creator_preferred_username: Option<String>,
pub creator_avatar: Option<String>,
pub creator_tags: Option<serde_json::Value>,
pub creator_community_tags: Option<serde_json::Value>,
pub creator_published: chrono::NaiveDateTime,
pub score: i64,
pub upvotes: i64,
pub downvotes: i64,
pub hot_rank: i32,
pub hot_rank_active: i32,
pub user_id: Option<i32>,
pub my_vote: Option<i32>,
pub subscribed: Option<bool>,
pub saved: Option<bool>,
pub recipient_id: i32,
}
pub struct ReplyQueryBuilder<'a> {
conn: &'a PgConnection,
query: super::comment_view::reply_fast_view::BoxedQuery<'a, Pg>,
for_user_id: i32,
sort: &'a SortType,
unread_only: bool,
page: Option<i64>,
limit: Option<i64>,
}
impl<'a> ReplyQueryBuilder<'a> {
pub fn create(conn: &'a PgConnection, for_user_id: i32) -> Self {
use super::comment_view::reply_fast_view::dsl::*;
let query = reply_fast_view.into_boxed();
ReplyQueryBuilder {
conn,
query,
for_user_id,
sort: &SortType::New,
unread_only: false,
page: None,
limit: None,
}
}
pub fn sort(mut self, sort: &'a SortType) -> Self {
self.sort = sort;
self
}
pub fn unread_only(mut self, unread_only: bool) -> Self {
self.unread_only = unread_only;
self
}
pub fn page<T: MaybeOptional<i64>>(mut self, page: T) -> Self {
self.page = page.get_optional();
self
}
pub fn limit<T: MaybeOptional<i64>>(mut self, limit: T) -> Self {
self.limit = limit.get_optional();
self
}
pub fn list(self) -> Result<Vec<ReplyView>, Error> {
use super::comment_view::reply_fast_view::dsl::*;
let mut query = self.query;
query = query
.filter(user_id.eq(self.for_user_id))
.filter(recipient_id.eq(self.for_user_id))
.filter(deleted.eq(false))
.filter(removed.eq(false));
if self.unread_only {
query = query.filter(read.eq(false));
}
query = match self.sort {
// SortType::Hot => query.order_by(hot_rank.desc()), // TODO why is this commented
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.order_by(published.desc()),
};
let (limit, offset) = limit_and_offset(self.page, self.limit);
query
.limit(limit)
.offset(offset)
.load::<ReplyView>(self.conn)
}
}
#[cfg(test)]
mod tests {
use crate::{
comment::*, comment_view::*, community::*, post::*, tests::establish_unpooled_connection,
user::*, Crud, Likeable, *,
};
#[test]
fn test_crud() {
let conn = establish_unpooled_connection();
let new_user = UserForm {
name: "timmy".into(),
preferred_username: None,
password_encrypted: "nope".into(),
email: None,
matrix_user_id: None,
avatar: None,
banner: None,
admin: false,
banned: false,
updated: None,
show_nsfw: false,
theme: "darkly".into(),
default_sort_type: SortType::Hot as i16,
default_listing_type: ListingType::Subscribed as i16,
lang: "browser".into(),
show_avatars: true,
send_notifications_to_email: false,
has_2fa: false,
actor_id: None,
bio: None,
local: true,
private_key: None,
public_key: None,
last_refreshed_at: None,
inbox_disabled: false,
};
let inserted_user = User_::create(&conn, &new_user).unwrap();
let new_community = CommunityForm {
name: "test community 5".to_string(),
title: "nada".to_owned(),
description: None,
category_id: 1,
creator_id: inserted_user.id,
removed: None,
deleted: None,
updated: None,
nsfw: false,
actor_id: None,
local: true,
private_key: None,
public_key: None,
last_refreshed_at: None,
published: None,
icon: None,
banner: None,
};
let inserted_community = Community::create(&conn, &new_community).unwrap();
let new_post = PostForm {
name: "A test post 2".into(),
creator_id: inserted_user.id,
url: None,
body: None,
community_id: inserted_community.id,
removed: None,
deleted: None,
locked: None,
stickied: None,
featured: None,
updated: None,
nsfw: false,
embed_title: None,
embed_description: None,
embed_html: None,
thumbnail_url: None,
ap_id: None,
local: true,
published: None,
};
let inserted_post = Post::create(&conn, &new_post).unwrap();
let comment_form = CommentForm {
content: "A test comment 32".into(),
creator_id: inserted_user.id,
post_id: inserted_post.id,
parent_id: None,
removed: None,
deleted: None,
read: None,
published: None,
updated: None,
ap_id: None,
local: true,
};
let inserted_comment = Comment::create(&conn, &comment_form).unwrap();
let comment_like_form = CommentLikeForm {
comment_id: inserted_comment.id,
post_id: inserted_post.id,
user_id: inserted_user.id,
score: 1,
};
let _inserted_comment_like = CommentLike::like(&conn, &comment_like_form).unwrap();
let expected_comment_view_no_user = CommentView {
id: inserted_comment.id,
content: "A test comment 32".into(),
creator_id: inserted_user.id,
post_id: inserted_post.id,
post_name: inserted_post.name.to_owned(),
community_id: inserted_community.id,
community_name: inserted_community.name.to_owned(),
community_icon: None,
community_hide_from_all: false,
parent_id: None,
removed: false,
deleted: false,
read: false,
banned: false,
banned_from_community: false,
published: inserted_comment.published,
updated: None,
creator_name: inserted_user.name.to_owned(),
creator_preferred_username: None,
creator_published: inserted_user.published,
creator_avatar: None,
creator_tags: None,
creator_community_tags: None,
score: 1,
downvotes: 0,
hot_rank: 0,
hot_rank_active: 0,
upvotes: 1,
user_id: None,
my_vote: None,
subscribed: None,
saved: None,
ap_id: inserted_comment.ap_id.to_owned(),
local: true,
community_actor_id: inserted_community.actor_id.to_owned(),
community_local: true,
creator_actor_id: inserted_user.actor_id.to_owned(),
creator_local: true,
};
let expected_comment_view_with_user = CommentView {
id: inserted_comment.id,
content: "A test comment 32".into(),
creator_id: inserted_user.id,
post_id: inserted_post.id,
post_name: inserted_post.name.to_owned(),
community_id: inserted_community.id,
community_name: inserted_community.name.to_owned(),
community_icon: None,
community_hide_from_all: false,
parent_id: None,
removed: false,
deleted: false,
read: false,
banned: false,
banned_from_community: false,
published: inserted_comment.published,
updated: None,
creator_name: inserted_user.name.to_owned(),
creator_preferred_username: None,
creator_published: inserted_user.published,
creator_avatar: None,
creator_tags: None,
creator_community_tags: None,
score: 1,
downvotes: 0,
hot_rank: 0,
hot_rank_active: 0,
upvotes: 1,
user_id: Some(inserted_user.id),
my_vote: Some(1),
subscribed: Some(false),
saved: Some(false),
ap_id: inserted_comment.ap_id.to_owned(),
local: true,
community_actor_id: inserted_community.actor_id.to_owned(),
community_local: true,
creator_actor_id: inserted_user.actor_id.to_owned(),
creator_local: true,
};
let mut read_comment_views_no_user = CommentQueryBuilder::create(&conn)
.for_post_id(inserted_post.id)
.list()
.unwrap();
read_comment_views_no_user[0].hot_rank = 0;
read_comment_views_no_user[0].hot_rank_active = 0;
let mut read_comment_views_with_user = CommentQueryBuilder::create(&conn)
.for_post_id(inserted_post.id)
.my_user_id(inserted_user.id)
.list()
.unwrap();
read_comment_views_with_user[0].hot_rank = 0;
read_comment_views_with_user[0].hot_rank_active = 0;
let like_removed = CommentLike::remove(&conn, inserted_user.id, inserted_comment.id).unwrap();
let num_deleted = Comment::delete(&conn, inserted_comment.id).unwrap();
Post::delete(&conn, inserted_post.id).unwrap();
Community::delete(&conn, inserted_community.id).unwrap();
User_::delete(&conn, inserted_user.id).unwrap();
assert_eq!(expected_comment_view_no_user, read_comment_views_no_user[0]);
assert_eq!(
expected_comment_view_with_user,
read_comment_views_with_user[0]
);
assert_eq!(1, num_deleted);
assert_eq!(1, like_removed);
}
}