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},
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 // TODO: this function is only used by is_mod_or_admin() below, can probably be merged
78 fn community_mods_and_admins(
80 community_id: CommunityId,
81 ) -> Result<Vec<PersonId>, Error> {
82 let mut mods_and_admins: Vec<PersonId> = Vec::new();
83 mods_and_admins.append(
84 &mut CommunityModeratorView::for_community(conn, community_id)
85 .map(|v| v.into_iter().map(|m| m.moderator.id).collect())?,
87 mods_and_admins.append(
88 &mut PersonViewSafe::admins(conn).map(|v| v.into_iter().map(|a| a.person.id).collect())?,
93 pub fn is_mod_or_admin(
96 community_id: CommunityId,
98 Self::community_mods_and_admins(conn, community_id)
100 .contains(&person_id)
104 pub struct CommunityQueryBuilder<'a> {
105 conn: &'a PgConnection,
106 listing_type: Option<ListingType>,
107 sort: Option<SortType>,
108 my_person_id: Option<PersonId>,
109 show_nsfw: Option<bool>,
110 search_term: Option<String>,
115 impl<'a> CommunityQueryBuilder<'a> {
116 pub fn create(conn: &'a PgConnection) -> Self {
117 CommunityQueryBuilder {
129 pub fn listing_type<T: MaybeOptional<ListingType>>(mut self, listing_type: T) -> Self {
130 self.listing_type = listing_type.get_optional();
134 pub fn sort<T: MaybeOptional<SortType>>(mut self, sort: T) -> Self {
135 self.sort = sort.get_optional();
139 pub fn show_nsfw<T: MaybeOptional<bool>>(mut self, show_nsfw: T) -> Self {
140 self.show_nsfw = show_nsfw.get_optional();
144 pub fn search_term<T: MaybeOptional<String>>(mut self, search_term: T) -> Self {
145 self.search_term = search_term.get_optional();
149 pub fn my_person_id<T: MaybeOptional<PersonId>>(mut self, my_person_id: T) -> Self {
150 self.my_person_id = my_person_id.get_optional();
154 pub fn page<T: MaybeOptional<i64>>(mut self, page: T) -> Self {
155 self.page = page.get_optional();
159 pub fn limit<T: MaybeOptional<i64>>(mut self, limit: T) -> Self {
160 self.limit = limit.get_optional();
164 pub fn list(self) -> Result<Vec<CommunityView>, Error> {
165 // The left join below will return None in this case
166 let person_id_join = self.my_person_id.unwrap_or(PersonId(-1));
168 let mut query = community::table
169 .inner_join(community_aggregates::table)
171 community_follower::table.on(
173 .eq(community_follower::community_id)
174 .and(community_follower::person_id.eq(person_id_join)),
178 community_block::table.on(
180 .eq(community_block::community_id)
181 .and(community_block::person_id.eq(person_id_join)),
185 Community::safe_columns_tuple(),
186 community_aggregates::all_columns,
187 community_follower::all_columns.nullable(),
188 community_block::all_columns.nullable(),
192 if let Some(search_term) = self.search_term {
193 let searcher = fuzzy_search(&search_term);
195 .filter(community::name.ilike(searcher.to_owned()))
196 .or_filter(community::title.ilike(searcher.to_owned()))
197 .or_filter(community::description.ilike(searcher));
200 match self.sort.unwrap_or(SortType::Hot) {
201 SortType::New => query = query.order_by(community::published.desc()),
202 SortType::TopAll => query = query.order_by(community_aggregates::subscribers.desc()),
203 SortType::TopMonth => query = query.order_by(community_aggregates::users_active_month.desc()),
204 // Covers all other sorts, including hot
209 community_aggregates::subscribers,
210 community_aggregates::published,
214 .then_order_by(community_aggregates::published.desc())
218 if !self.show_nsfw.unwrap_or(false) {
219 query = query.filter(community::nsfw.eq(false));
222 if let Some(listing_type) = self.listing_type {
223 query = match listing_type {
224 ListingType::Subscribed => query.filter(community_follower::person_id.is_not_null()), // TODO could be this: and(community_follower::person_id.eq(person_id_join)),
225 ListingType::Local => query.filter(community::local.eq(true)),
230 // Don't show blocked communities
231 if self.my_person_id.is_some() {
232 query = query.filter(community_block::person_id.is_null());
235 let (limit, offset) = limit_and_offset(self.page, self.limit);
239 .filter(community::removed.eq(false))
240 .filter(community::deleted.eq(false))
241 .load::<CommunityViewTuple>(self.conn)?;
243 Ok(CommunityView::from_tuple_to_vec(res))
247 impl ViewToVec for CommunityView {
248 type DbTuple = CommunityViewTuple;
249 fn from_tuple_to_vec(items: Vec<Self::DbTuple>) -> Vec<Self> {
253 community: a.0.to_owned(),
254 counts: a.1.to_owned(),
255 subscribed: a.2.is_some(),
256 blocked: a.3.is_some(),
258 .collect::<Vec<Self>>()