1 use crate::{community_moderator_view::CommunityModeratorView, person_view::PersonViewSafe};
2 use diesel::{result::Error, *};
4 aggregates::community_aggregates::CommunityAggregates,
8 newtypes::{CommunityId, PersonId},
9 schema::{community, community_aggregates, community_block, community_follower, local_user},
11 community::{Community, CommunityFollower, CommunitySafe},
12 community_block::CommunityBlock,
14 traits::{MaybeOptional, ToSafe, ViewToVec},
18 use serde::{Deserialize, Serialize};
20 #[derive(Debug, Serialize, Deserialize, Clone)]
21 pub struct CommunityView {
22 pub community: CommunitySafe,
25 pub counts: CommunityAggregates,
28 type CommunityViewTuple = (
31 Option<CommunityFollower>,
32 Option<CommunityBlock>,
38 community_id: CommunityId,
39 my_person_id: Option<PersonId>,
40 ) -> Result<Self, Error> {
41 // The left join below will return None in this case
42 let person_id_join = my_person_id.unwrap_or(PersonId(-1));
44 let (community, counts, follower, blocked) = community::table
46 .inner_join(community_aggregates::table)
48 community_follower::table.on(
50 .eq(community_follower::community_id)
51 .and(community_follower::person_id.eq(person_id_join)),
55 community_block::table.on(
57 .eq(community_block::community_id)
58 .and(community_block::person_id.eq(person_id_join)),
62 Community::safe_columns_tuple(),
63 community_aggregates::all_columns,
64 community_follower::all_columns.nullable(),
65 community_block::all_columns.nullable(),
67 .first::<CommunityViewTuple>(conn)?;
71 subscribed: follower.is_some(),
72 blocked: blocked.is_some(),
77 pub fn is_mod_or_admin(
80 community_id: CommunityId,
82 let is_mod = CommunityModeratorView::for_community(conn, community_id)
85 .map(|m| m.moderator.id)
86 .collect::<Vec<PersonId>>()
89 .contains(&person_id);
94 PersonViewSafe::admins(conn)
98 .collect::<Vec<PersonId>>()
101 .contains(&person_id)
105 pub struct CommunityQueryBuilder<'a> {
106 conn: &'a PgConnection,
107 listing_type: Option<ListingType>,
108 sort: Option<SortType>,
109 my_person_id: Option<PersonId>,
110 show_nsfw: Option<bool>,
111 search_term: Option<String>,
116 impl<'a> CommunityQueryBuilder<'a> {
117 pub fn create(conn: &'a PgConnection) -> Self {
118 CommunityQueryBuilder {
130 pub fn listing_type<T: MaybeOptional<ListingType>>(mut self, listing_type: T) -> Self {
131 self.listing_type = listing_type.get_optional();
135 pub fn sort<T: MaybeOptional<SortType>>(mut self, sort: T) -> Self {
136 self.sort = sort.get_optional();
140 pub fn show_nsfw<T: MaybeOptional<bool>>(mut self, show_nsfw: T) -> Self {
141 self.show_nsfw = show_nsfw.get_optional();
145 pub fn search_term<T: MaybeOptional<String>>(mut self, search_term: T) -> Self {
146 self.search_term = search_term.get_optional();
150 pub fn my_person_id<T: MaybeOptional<PersonId>>(mut self, my_person_id: T) -> Self {
151 self.my_person_id = my_person_id.get_optional();
155 pub fn page<T: MaybeOptional<i64>>(mut self, page: T) -> Self {
156 self.page = page.get_optional();
160 pub fn limit<T: MaybeOptional<i64>>(mut self, limit: T) -> Self {
161 self.limit = limit.get_optional();
165 pub fn list(self) -> Result<Vec<CommunityView>, Error> {
166 // The left join below will return None in this case
167 let person_id_join = self.my_person_id.unwrap_or(PersonId(-1));
169 let mut query = community::table
170 .inner_join(community_aggregates::table)
171 .left_join(local_user::table.on(local_user::person_id.eq(person_id_join)))
173 community_follower::table.on(
175 .eq(community_follower::community_id)
176 .and(community_follower::person_id.eq(person_id_join)),
180 community_block::table.on(
182 .eq(community_block::community_id)
183 .and(community_block::person_id.eq(person_id_join)),
187 Community::safe_columns_tuple(),
188 community_aggregates::all_columns,
189 community_follower::all_columns.nullable(),
190 community_block::all_columns.nullable(),
194 if let Some(search_term) = self.search_term {
195 let searcher = fuzzy_search(&search_term);
197 .filter(community::name.ilike(searcher.to_owned()))
198 .or_filter(community::title.ilike(searcher.to_owned()))
199 .or_filter(community::description.ilike(searcher));
202 match self.sort.unwrap_or(SortType::Hot) {
203 SortType::New => query = query.order_by(community::published.desc()),
204 SortType::TopAll => query = query.order_by(community_aggregates::subscribers.desc()),
205 SortType::TopMonth => query = query.order_by(community_aggregates::users_active_month.desc()),
210 community_aggregates::subscribers,
211 community_aggregates::published,
215 .then_order_by(community_aggregates::published.desc());
216 // Don't show hidden communities in Hot (trending)
217 query = query.filter(
220 .or(community_follower::person_id.eq(person_id_join)),
223 // Covers all other sorts
228 community_aggregates::subscribers,
229 community_aggregates::published,
233 .then_order_by(community_aggregates::published.desc())
237 if let Some(listing_type) = self.listing_type {
238 query = match listing_type {
239 ListingType::Subscribed => query.filter(community_follower::person_id.is_not_null()), // TODO could be this: and(community_follower::person_id.eq(person_id_join)),
240 ListingType::Local => query.filter(community::local.eq(true)),
245 // Don't show blocked communities or nsfw communities if not enabled in profile
246 if self.my_person_id.is_some() {
247 query = query.filter(community_block::person_id.is_null());
248 query = query.filter(community::nsfw.eq(false).or(local_user::show_nsfw.eq(true)));
250 // No person in request, only show nsfw communities if show_nsfw passed into request
251 if !self.show_nsfw.unwrap_or(false) {
252 query = query.filter(community::nsfw.eq(false));
256 let (limit, offset) = limit_and_offset(self.page, self.limit);
260 .filter(community::removed.eq(false))
261 .filter(community::deleted.eq(false))
262 .load::<CommunityViewTuple>(self.conn)?;
264 Ok(CommunityView::from_tuple_to_vec(res))
268 impl ViewToVec for CommunityView {
269 type DbTuple = CommunityViewTuple;
270 fn from_tuple_to_vec(items: Vec<Self::DbTuple>) -> Vec<Self> {
274 community: a.0.to_owned(),
275 counts: a.1.to_owned(),
276 subscribed: a.2.is_some(),
277 blocked: a.3.is_some(),
279 .collect::<Vec<Self>>()