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Removing old user_mention_view.

pull/1329/head
Dessalines 2020-12-16 11:09:21 -05:00
parent 471abf7f29
commit 711db4c790
10 changed files with 573 additions and 246 deletions
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10
lemmy_api/src/user.rs
View File

@ -31,13 +31,13 @@ use lemmy_db::{
user::*,
user_mention::*,
},
user_mention_view::*,
views::{
comment_view::CommentQueryBuilder,
community_follower_view::CommunityFollowerView,
community_moderator_view::CommunityModeratorView,
post_view::PostQueryBuilder,
site_view::SiteView,
user_mention_view::{UserMentionQueryBuilder, UserMentionView},
user_view::{UserViewDangerous, UserViewSafe},
},
Crud,
@ -774,7 +774,7 @@ impl Perform for GetUserMentions {
let unread_only = data.unread_only;
let user_id = user.id;
let mentions = blocking(context.pool(), move |conn| {
UserMentionQueryBuilder::create(conn, user_id)
UserMentionQueryBuilder::create(conn, Some(user_id), user_id)
.sort(&sort)
.unread_only(unread_only)
.page(page)
@ -819,13 +819,11 @@ impl Perform for MarkUserMentionAsRead {
let user_mention_id = read_user_mention.id;
let user_id = user.id;
let user_mention_view = blocking(context.pool(), move |conn| {
UserMentionView::read(conn, user_mention_id, user_id)
UserMentionView::read(conn, user_mention_id, Some(user_id))
})
.await??;
Ok(UserMentionResponse {
mention: user_mention_view,
})
Ok(UserMentionResponse { user_mention_view })
}
}

1
lemmy_db/src/lib.rs
View File

@ -15,7 +15,6 @@ pub mod comment_report;
pub mod moderator_views;
pub mod post_report;
pub mod private_message_view;
pub mod user_mention_view;
pub mod aggregates;
pub mod schema;

1
lemmy_db/src/schema.rs
View File

@ -617,6 +617,7 @@ table! {
joinable!(comment_alias_1 -> user_alias_1 (creator_id));
joinable!(comment -> comment_alias_1 (parent_id));
joinable!(user_mention -> user_alias_1 (recipient_id));
joinable!(comment -> post (post_id));
joinable!(comment -> user_ (creator_id));

3
lemmy_db/src/source/user_mention.rs
View File

@ -1,8 +1,9 @@
use super::comment::Comment;
use crate::{schema::user_mention, Crud};
use diesel::{dsl::*, result::Error, *};
use serde::Serialize;
#[derive(Queryable, Associations, Identifiable, PartialEq, Debug)]
#[derive(Clone, Queryable, Associations, Identifiable, PartialEq, Debug, Serialize)]
#[belongs_to(Comment)]
#[table_name = "user_mention"]
pub struct UserMention {

231
lemmy_db/src/user_mention_view.rs
View File

@ -1,231 +0,0 @@
use crate::{limit_and_offset, MaybeOptional, SortType};
use diesel::{dsl::*, pg::Pg, result::Error, *};
use serde::Serialize;
// The faked schema since diesel doesn't do views
table! {
user_mention_view (id) {
id -> Int4,
user_mention_id -> Int4,
creator_id -> Int4,
creator_actor_id -> Text,
creator_local -> Bool,
post_id -> Int4,
post_name -> Varchar,
parent_id -> Nullable<Int4>,
content -> Text,
removed -> Bool,
read -> Bool,
published -> Timestamp,
updated -> Nullable<Timestamp>,
deleted -> Bool,
community_id -> Int4,
community_actor_id -> Text,
community_local -> Bool,
community_name -> Varchar,
community_icon -> Nullable<Text>,
banned -> Bool,
banned_from_community -> Bool,
creator_name -> Varchar,
creator_preferred_username -> Nullable<Varchar>,
creator_avatar -> Nullable<Text>,
score -> BigInt,
upvotes -> BigInt,
downvotes -> BigInt,
hot_rank -> Int4,
hot_rank_active -> Int4,
user_id -> Nullable<Int4>,
my_vote -> Nullable<Int4>,
saved -> Nullable<Bool>,
recipient_id -> Int4,
recipient_actor_id -> Text,
recipient_local -> Bool,
}
}
table! {
user_mention_fast_view (id) {
id -> Int4,
user_mention_id -> Int4,
creator_id -> Int4,
creator_actor_id -> Text,
creator_local -> Bool,
post_id -> Int4,
post_name -> Varchar,
parent_id -> Nullable<Int4>,
content -> Text,
removed -> Bool,
read -> Bool,
published -> Timestamp,
updated -> Nullable<Timestamp>,
deleted -> Bool,
community_id -> Int4,
community_actor_id -> Text,
community_local -> Bool,
community_name -> Varchar,
community_icon -> Nullable<Text>,
banned -> Bool,
banned_from_community -> Bool,
creator_name -> Varchar,
creator_preferred_username -> Nullable<Varchar>,
creator_avatar -> Nullable<Text>,
score -> BigInt,
upvotes -> BigInt,
downvotes -> BigInt,
hot_rank -> Int4,
hot_rank_active -> Int4,
user_id -> Nullable<Int4>,
my_vote -> Nullable<Int4>,
saved -> Nullable<Bool>,
recipient_id -> Int4,
recipient_actor_id -> Text,
recipient_local -> Bool,
}
}
#[derive(Queryable, Identifiable, PartialEq, Debug, Serialize, QueryableByName, Clone)]
#[table_name = "user_mention_fast_view"]
pub struct UserMentionView {
pub id: i32,
pub user_mention_id: i32,
pub creator_id: i32,
pub creator_actor_id: String,
pub creator_local: bool,
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 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_name: String,
pub creator_preferred_username: Option<String>,
pub creator_avatar: Option<String>,
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 saved: Option<bool>,
pub recipient_id: i32,
pub recipient_actor_id: String,
pub recipient_local: bool,
}
pub struct UserMentionQueryBuilder<'a> {
conn: &'a PgConnection,
query: super::user_mention_view::user_mention_fast_view::BoxedQuery<'a, Pg>,
for_user_id: i32,
sort: &'a SortType,
unread_only: bool,
page: Option<i64>,
limit: Option<i64>,
}
impl<'a> UserMentionQueryBuilder<'a> {
pub fn create(conn: &'a PgConnection, for_user_id: i32) -> Self {
use super::user_mention_view::user_mention_fast_view::dsl::*;
let query = user_mention_fast_view.into_boxed();
UserMentionQueryBuilder {
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<UserMentionView>, Error> {
use super::user_mention_view::user_mention_fast_view::dsl::*;
let mut query = self.query;
if self.unread_only {
query = query.filter(read.eq(false));
}
query = query
.filter(user_id.eq(self.for_user_id))
.filter(recipient_id.eq(self.for_user_id));
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);
query
.limit(limit)
.offset(offset)
.load::<UserMentionView>(self.conn)
}
}
impl UserMentionView {
pub fn read(
conn: &PgConnection,
from_user_mention_id: i32,
from_recipient_id: i32,
) -> Result<Self, Error> {
use super::user_mention_view::user_mention_fast_view::dsl::*;
user_mention_fast_view
.filter(user_mention_id.eq(from_user_mention_id))
.filter(user_id.eq(from_recipient_id))
.first::<Self>(conn)
}
}

1
lemmy_db/src/views/mod.rs
View File

@ -5,6 +5,7 @@ pub mod community_user_ban_view;
pub mod community_view;
pub mod post_view;
pub mod site_view;
pub mod user_mention_view;
pub mod user_view;
pub(crate) trait ViewToVec {

552
lemmy_db/src/views/user_mention_view.rs 100644
View File

@ -0,0 +1,552 @@
use crate::{
aggregates::comment_aggregates::CommentAggregates,
functions::hot_rank,
limit_and_offset,
schema::{
comment,
comment_aggregates,
comment_like,
comment_saved,
community,
community_follower,
community_user_ban,
post,
user_,
user_alias_1,
user_mention,
},
source::{
comment::{Comment, CommentSaved},
community::{Community, CommunityFollower, CommunitySafe, CommunityUserBan},
post::Post,
user::{UserAlias1, UserSafe, UserSafeAlias1, User_},
user_mention::UserMention,
},
views::ViewToVec,
MaybeOptional,
SortType,
ToSafe,
};
use diesel::{result::Error, *};
use serde::Serialize;
#[derive(Debug, PartialEq, Serialize, Clone)]
pub struct UserMentionView {
pub user_mention: UserMention,
pub comment: Comment,
pub creator: UserSafe,
pub post: Post,
pub community: CommunitySafe,
pub recipient: UserSafeAlias1,
pub counts: CommentAggregates,
pub creator_banned_from_community: bool, // Left Join to CommunityUserBan
pub subscribed: bool, // Left join to CommunityFollower
pub saved: bool, // Left join to CommentSaved
pub my_vote: Option<i16>, // Left join to CommentLike
}
type UserMentionViewTuple = (
UserMention,
Comment,
UserSafe,
Post,
CommunitySafe,
UserSafeAlias1,
CommentAggregates,
Option<CommunityUserBan>,
Option<CommunityFollower>,
Option<CommentSaved>,
Option<i16>,
);
impl UserMentionView {
pub fn read(
conn: &PgConnection,
user_mention_id: i32,
my_user_id: Option<i32>,
) -> Result<Self, Error> {
// The left join below will return None in this case
let user_id_join = my_user_id.unwrap_or(-1);
let (
user_mention,
comment,
creator,
post,
community,
recipient,
counts,
creator_banned_from_community,
subscribed,
saved,
my_vote,
) = user_mention::table
.find(user_mention_id)
.inner_join(comment::table)
.inner_join(user_::table.on(comment::creator_id.eq(user_::id)))
.inner_join(post::table.on(comment::post_id.eq(post::id)))
.inner_join(community::table.on(post::community_id.eq(community::id)))
.inner_join(user_alias_1::table)
.inner_join(comment_aggregates::table.on(comment::id.eq(comment_aggregates::comment_id)))
.left_join(
community_user_ban::table.on(
community::id
.eq(community_user_ban::community_id)
.and(community_user_ban::user_id.eq(comment::creator_id)),
),
)
.left_join(
community_follower::table.on(
post::community_id
.eq(community_follower::community_id)
.and(community_follower::user_id.eq(user_id_join)),
),
)
.left_join(
comment_saved::table.on(
comment::id
.eq(comment_saved::comment_id)
.and(comment_saved::user_id.eq(user_id_join)),
),
)
.left_join(
comment_like::table.on(
comment::id
.eq(comment_like::comment_id)
.and(comment_like::user_id.eq(user_id_join)),
),
)
.select((
user_mention::all_columns,
comment::all_columns,
User_::safe_columns_tuple(),
post::all_columns,
Community::safe_columns_tuple(),
UserAlias1::safe_columns_tuple(),
comment_aggregates::all_columns,
community_user_ban::all_columns.nullable(),
community_follower::all_columns.nullable(),
comment_saved::all_columns.nullable(),
comment_like::score.nullable(),
))
.first::<UserMentionViewTuple>(conn)?;
Ok(UserMentionView {
user_mention,
comment,
creator,
post,
community,
recipient,
counts,
creator_banned_from_community: creator_banned_from_community.is_some(),
subscribed: subscribed.is_some(),
saved: saved.is_some(),
my_vote,
})
}
}
mod join_types {
use crate::schema::{
comment,
comment_aggregates,
comment_like,
comment_saved,
community,
community_follower,
community_user_ban,
post,
user_,
user_alias_1,
user_mention,
};
use diesel::{
pg::Pg,
query_builder::BoxedSelectStatement,
query_source::joins::{Inner, Join, JoinOn, LeftOuter},
sql_types::*,
};
// /// TODO awful, but necessary because of the boxed join
pub(super) type BoxedUserMentionJoin<'a> = BoxedSelectStatement<
'a,
(
(Integer, Integer, Integer, Bool, Timestamp),
(
Integer,
Integer,
Integer,
Nullable<Integer>,
Text,
Bool,
Bool,
Timestamp,
Nullable<Timestamp>,
Bool,
Text,
Bool,
),
(
Integer,
Text,
Nullable<Text>,
Nullable<Text>,
Bool,
Bool,
Timestamp,
Nullable<Timestamp>,
Nullable<Text>,
Text,
Nullable<Text>,
Bool,
Nullable<Text>,
Bool,
),
(
Integer,
Text,
Nullable<Text>,
Nullable<Text>,
Integer,
Integer,
Bool,
Bool,
Timestamp,
Nullable<Timestamp>,
Bool,
Bool,
Bool,
Nullable<Text>,
Nullable<Text>,
Nullable<Text>,
Nullable<Text>,
Text,
Bool,
),
(
Integer,
Text,
Text,
Nullable<Text>,
Integer,
Integer,
Bool,
Timestamp,
Nullable<Timestamp>,
Bool,
Bool,
Text,
Bool,
Nullable<Text>,
Nullable<Text>,
),
(
Integer,
Text,
Nullable<Text>,
Nullable<Text>,
Bool,
Bool,
Timestamp,
Nullable<Timestamp>,
Nullable<Text>,
Text,
Nullable<Text>,
Bool,
Nullable<Text>,
Bool,
),
(Integer, Integer, BigInt, BigInt, BigInt),
Nullable<(Integer, Integer, Integer, Timestamp)>,
Nullable<(Integer, Integer, Integer, Timestamp, Nullable<Bool>)>,
Nullable<(Integer, Integer, Integer, Timestamp)>,
Nullable<SmallInt>,
),
JoinOn<
Join<
JoinOn<
Join<
JoinOn<
Join<
JoinOn<
Join<
JoinOn<
Join<
JoinOn<
Join<
JoinOn<
Join<
JoinOn<
Join<
JoinOn<
Join<
JoinOn<
Join<user_mention::table, comment::table, Inner>,
diesel::expression::operators::Eq<
diesel::expression::nullable::Nullable<
user_mention::columns::comment_id,
>,
diesel::expression::nullable::Nullable<
comment::columns::id,
>,
>,
>,
user_::table,
Inner,
>,
diesel::expression::operators::Eq<
comment::columns::creator_id,
user_::columns::id,
>,
>,
post::table,
Inner,
>,
diesel::expression::operators::Eq<
comment::columns::post_id,
post::columns::id,
>,
>,
community::table,
Inner,
>,
diesel::expression::operators::Eq<
post::columns::community_id,
community::columns::id,
>,
>,
user_alias_1::table,
Inner,
>,
diesel::expression::operators::Eq<
diesel::expression::nullable::Nullable<
user_mention::columns::recipient_id,
>,
diesel::expression::nullable::Nullable<user_alias_1::columns::id>,
>,
>,
comment_aggregates::table,
Inner,
>,
diesel::expression::operators::Eq<
comment::columns::id,
comment_aggregates::columns::comment_id,
>,
>,
community_user_ban::table,
LeftOuter,
>,
diesel::expression::operators::And<
diesel::expression::operators::Eq<
community::columns::id,
community_user_ban::columns::community_id,
>,
diesel::expression::operators::Eq<
community_user_ban::columns::user_id,
comment::columns::creator_id,
>,
>,
>,
community_follower::table,
LeftOuter,
>,
diesel::expression::operators::And<
diesel::expression::operators::Eq<
post::columns::community_id,
community_follower::columns::community_id,
>,
diesel::expression::operators::Eq<
community_follower::columns::user_id,
diesel::expression::bound::Bound<Integer, i32>,
>,
>,
>,
comment_saved::table,
LeftOuter,
>,
diesel::expression::operators::And<
diesel::expression::operators::Eq<
comment::columns::id,
comment_saved::columns::comment_id,
>,
diesel::expression::operators::Eq<
comment_saved::columns::user_id,
diesel::expression::bound::Bound<Integer, i32>,
>,
>,
>,
comment_like::table,
LeftOuter,
>,
diesel::expression::operators::And<
diesel::expression::operators::Eq<comment::columns::id, comment_like::columns::comment_id>,
diesel::expression::operators::Eq<
comment_like::columns::user_id,
diesel::expression::bound::Bound<Integer, i32>,
>,
>,
>,
Pg,
>;
}
pub struct UserMentionQueryBuilder<'a> {
conn: &'a PgConnection,
query: join_types::BoxedUserMentionJoin<'a>,
for_recipient_id: i32,
sort: &'a SortType,
unread_only: bool,
page: Option<i64>,
limit: Option<i64>,
}
impl<'a> UserMentionQueryBuilder<'a> {
pub fn create(conn: &'a PgConnection, my_user_id: Option<i32>, for_recipient_id: i32) -> Self {
// The left join below will return None in this case
let user_id_join = my_user_id.unwrap_or(-1);
let query = user_mention::table
.inner_join(comment::table)
.inner_join(user_::table.on(comment::creator_id.eq(user_::id)))
.inner_join(post::table.on(comment::post_id.eq(post::id)))
.inner_join(community::table.on(post::community_id.eq(community::id)))
.inner_join(user_alias_1::table)
.inner_join(comment_aggregates::table.on(comment::id.eq(comment_aggregates::comment_id)))
.left_join(
community_user_ban::table.on(
community::id
.eq(community_user_ban::community_id)
.and(community_user_ban::user_id.eq(comment::creator_id)),
),
)
.left_join(
community_follower::table.on(
post::community_id
.eq(community_follower::community_id)
.and(community_follower::user_id.eq(user_id_join)),
),
)
.left_join(
comment_saved::table.on(
comment::id
.eq(comment_saved::comment_id)
.and(comment_saved::user_id.eq(user_id_join)),
),
)
.left_join(
comment_like::table.on(
comment::id
.eq(comment_like::comment_id)
.and(comment_like::user_id.eq(user_id_join)),
),
)
.select((
user_mention::all_columns,
comment::all_columns,
User_::safe_columns_tuple(),
post::all_columns,
Community::safe_columns_tuple(),
UserAlias1::safe_columns_tuple(),
comment_aggregates::all_columns,
community_user_ban::all_columns.nullable(),
community_follower::all_columns.nullable(),
comment_saved::all_columns.nullable(),
comment_like::score.nullable(),
))
.into_boxed();
UserMentionQueryBuilder {
conn,
query,
for_recipient_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<UserMentionView>, Error> {
use diesel::dsl::*;
let mut query = self.query;
query = query.filter(user_mention::recipient_id.eq(self.for_recipient_id));
if self.unread_only {
query = query.filter(user_mention::read.eq(false));
}
query = match self.sort {
SortType::Hot | SortType::Active => query
.order_by(hot_rank(comment_aggregates::score, comment::published).desc())
.then_order_by(comment::published.desc()),
SortType::New => query.order_by(comment::published.desc()),
SortType::TopAll => query.order_by(comment_aggregates::score.desc()),
SortType::TopYear => query
.filter(comment::published.gt(now - 1.years()))
.order_by(comment_aggregates::score.desc()),
SortType::TopMonth => query
.filter(comment::published.gt(now - 1.months()))
.order_by(comment_aggregates::score.desc()),
SortType::TopWeek => query
.filter(comment::published.gt(now - 1.weeks()))
.order_by(comment_aggregates::score.desc()),
SortType::TopDay => query
.filter(comment::published.gt(now - 1.days()))
.order_by(comment_aggregates::score.desc()),
};
let (limit, offset) = limit_and_offset(self.page, self.limit);
let res = query
.limit(limit)
.offset(offset)
.load::<UserMentionViewTuple>(self.conn)?;
Ok(UserMentionView::to_vec(res))
}
}
impl ViewToVec for UserMentionView {
type DbTuple = UserMentionViewTuple;
fn to_vec(posts: Vec<Self::DbTuple>) -> Vec<Self> {
posts
.iter()
.map(|a| Self {
user_mention: a.0.to_owned(),
comment: a.1.to_owned(),
creator: a.2.to_owned(),
post: a.3.to_owned(),
community: a.4.to_owned(),
recipient: a.5.to_owned(),
counts: a.6.to_owned(),
creator_banned_from_community: a.7.is_some(),
subscribed: a.8.is_some(),
saved: a.9.is_some(),
my_vote: a.10,
})
.collect::<Vec<Self>>()
}
}

1
lemmy_db/src/views/user_view.rs
View File

@ -70,6 +70,7 @@ impl UserViewSafe {
}
}
// TODO can get rid of this by not boxing the query before the list()
mod join_types {
use crate::schema::{user_, user_aggregates};
use diesel::{

4
lemmy_structs/src/user.rs
View File

@ -1,11 +1,11 @@
use lemmy_db::{
private_message_view::PrivateMessageView,
user_mention_view::UserMentionView,
views::{
comment_view::CommentView,
community_follower_view::CommunityFollowerView,
community_moderator_view::CommunityModeratorView,
post_view::PostView,
user_mention_view::UserMentionView,
user_view::{UserViewDangerous, UserViewSafe},
},
};
@ -162,7 +162,7 @@ pub struct MarkUserMentionAsRead {
#[derive(Serialize, Clone)]
pub struct UserMentionResponse {
pub mention: UserMentionView,
pub user_mention_view: UserMentionView,
}
#[derive(Deserialize)]

15
src/routes/feeds.rs
View File

@ -5,11 +5,11 @@ use diesel::PgConnection;
use lemmy_api::claims::Claims;
use lemmy_db::{
source::{community::Community, user::User_},
user_mention_view::{UserMentionQueryBuilder, UserMentionView},
views::{
comment_view::{CommentQueryBuilder, CommentView},
post_view::{PostQueryBuilder, PostView},
site_view::SiteView,
user_mention_view::{UserMentionQueryBuilder, UserMentionView},
},
ListingType,
SortType,
@ -253,7 +253,7 @@ fn get_feed_inbox(conn: &PgConnection, jwt: String) -> Result<ChannelBuilder, Le
.sort(&sort)
.list()?;
let mentions = UserMentionQueryBuilder::create(&conn, user_id)
let mentions = UserMentionQueryBuilder::create(&conn, Some(user_id), user_id)
.sort(&sort)
.list()?;
@ -304,10 +304,15 @@ fn create_reply_and_mention_items(
let mention_url = format!(
"{}/post/{}/comment/{}",
Settings::get().get_protocol_and_hostname(),
m.post_id,
m.id
m.post.id,
m.comment.id
);
build_item(&m.creator_name, &m.published, &mention_url, &m.content)
build_item(
&m.creator.name,
&m.comment.published,
&mention_url,
&m.comment.content,
)
})
.collect::<Result<Vec<Item>, LemmyError>>()?;