1 use crate::structs::{CommunityModeratorView, CommunityView, PersonViewSafe};
2 use diesel::{result::Error, *};
4 aggregates::structs::CommunityAggregates,
5 newtypes::{CommunityId, PersonId},
6 schema::{community, community_aggregates, community_block, community_follower, local_user},
8 community::{Community, CommunityFollower, CommunitySafe},
9 community_block::CommunityBlock,
11 traits::{MaybeOptional, ToSafe, ViewToVec},
12 utils::{functions::hot_rank, fuzzy_search, limit_and_offset},
17 type CommunityViewTuple = (
20 Option<CommunityFollower>,
21 Option<CommunityBlock>,
27 community_id: CommunityId,
28 my_person_id: Option<PersonId>,
29 ) -> Result<Self, Error> {
30 // The left join below will return None in this case
31 let person_id_join = my_person_id.unwrap_or(PersonId(-1));
33 let (community, counts, follower, blocked) = community::table
35 .inner_join(community_aggregates::table)
37 community_follower::table.on(
39 .eq(community_follower::community_id)
40 .and(community_follower::person_id.eq(person_id_join)),
44 community_block::table.on(
46 .eq(community_block::community_id)
47 .and(community_block::person_id.eq(person_id_join)),
51 Community::safe_columns_tuple(),
52 community_aggregates::all_columns,
53 community_follower::all_columns.nullable(),
54 community_block::all_columns.nullable(),
56 .first::<CommunityViewTuple>(conn)?;
60 subscribed: CommunityFollower::to_subscribed_type(&follower),
61 blocked: blocked.is_some(),
66 pub fn is_mod_or_admin(
69 community_id: CommunityId,
71 let is_mod = CommunityModeratorView::for_community(conn, community_id)
74 .map(|m| m.moderator.id)
75 .collect::<Vec<PersonId>>()
78 .contains(&person_id);
83 PersonViewSafe::admins(conn)
87 .collect::<Vec<PersonId>>()
94 pub struct CommunityQueryBuilder<'a> {
95 conn: &'a PgConnection,
96 listing_type: Option<ListingType>,
97 sort: Option<SortType>,
98 my_person_id: Option<PersonId>,
99 show_nsfw: Option<bool>,
100 search_term: Option<String>,
105 impl<'a> CommunityQueryBuilder<'a> {
106 pub fn create(conn: &'a PgConnection) -> Self {
107 CommunityQueryBuilder {
119 pub fn listing_type<T: MaybeOptional<ListingType>>(mut self, listing_type: T) -> Self {
120 self.listing_type = listing_type.get_optional();
124 pub fn sort<T: MaybeOptional<SortType>>(mut self, sort: T) -> Self {
125 self.sort = sort.get_optional();
129 pub fn show_nsfw<T: MaybeOptional<bool>>(mut self, show_nsfw: T) -> Self {
130 self.show_nsfw = show_nsfw.get_optional();
134 pub fn search_term<T: MaybeOptional<String>>(mut self, search_term: T) -> Self {
135 self.search_term = search_term.get_optional();
139 pub fn my_person_id<T: MaybeOptional<PersonId>>(mut self, my_person_id: T) -> Self {
140 self.my_person_id = my_person_id.get_optional();
144 pub fn page<T: MaybeOptional<i64>>(mut self, page: T) -> Self {
145 self.page = page.get_optional();
149 pub fn limit<T: MaybeOptional<i64>>(mut self, limit: T) -> Self {
150 self.limit = limit.get_optional();
154 pub fn list(self) -> Result<Vec<CommunityView>, Error> {
155 // The left join below will return None in this case
156 let person_id_join = self.my_person_id.unwrap_or(PersonId(-1));
158 let mut query = community::table
159 .inner_join(community_aggregates::table)
160 .left_join(local_user::table.on(local_user::person_id.eq(person_id_join)))
162 community_follower::table.on(
164 .eq(community_follower::community_id)
165 .and(community_follower::person_id.eq(person_id_join)),
169 community_block::table.on(
171 .eq(community_block::community_id)
172 .and(community_block::person_id.eq(person_id_join)),
176 Community::safe_columns_tuple(),
177 community_aggregates::all_columns,
178 community_follower::all_columns.nullable(),
179 community_block::all_columns.nullable(),
183 if let Some(search_term) = self.search_term {
184 let searcher = fuzzy_search(&search_term);
186 .filter(community::name.ilike(searcher.to_owned()))
187 .or_filter(community::title.ilike(searcher.to_owned()))
188 .or_filter(community::description.ilike(searcher));
191 match self.sort.unwrap_or(SortType::Hot) {
192 SortType::New => query = query.order_by(community::published.desc()),
193 SortType::TopAll => query = query.order_by(community_aggregates::subscribers.desc()),
194 SortType::TopMonth => query = query.order_by(community_aggregates::users_active_month.desc()),
199 community_aggregates::subscribers,
200 community_aggregates::published,
204 .then_order_by(community_aggregates::published.desc());
205 // Don't show hidden communities in Hot (trending)
206 query = query.filter(
209 .or(community_follower::person_id.eq(person_id_join)),
212 // Covers all other sorts
217 community_aggregates::subscribers,
218 community_aggregates::published,
222 .then_order_by(community_aggregates::published.desc())
226 if let Some(listing_type) = self.listing_type {
227 query = match listing_type {
228 ListingType::Subscribed => query.filter(community_follower::person_id.is_not_null()), // TODO could be this: and(community_follower::person_id.eq(person_id_join)),
229 ListingType::Local => query.filter(community::local.eq(true)),
234 // Don't show blocked communities or nsfw communities if not enabled in profile
235 if self.my_person_id.is_some() {
236 query = query.filter(community_block::person_id.is_null());
237 query = query.filter(community::nsfw.eq(false).or(local_user::show_nsfw.eq(true)));
239 // No person in request, only show nsfw communities if show_nsfw passed into request
240 if !self.show_nsfw.unwrap_or(false) {
241 query = query.filter(community::nsfw.eq(false));
245 let (limit, offset) = limit_and_offset(self.page, self.limit);
249 .filter(community::removed.eq(false))
250 .filter(community::deleted.eq(false))
251 .load::<CommunityViewTuple>(self.conn)?;
253 Ok(CommunityView::from_tuple_to_vec(res))
257 impl ViewToVec for CommunityView {
258 type DbTuple = CommunityViewTuple;
259 fn from_tuple_to_vec(items: Vec<Self::DbTuple>) -> Vec<Self> {
263 community: a.0.to_owned(),
264 counts: a.1.to_owned(),
265 subscribed: CommunityFollower::to_subscribed_type(&a.2),
266 blocked: a.3.is_some(),
268 .collect::<Vec<Self>>()