lemmy/crates/db_views_actor/src/community_view.rs

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use crate::structs::{CommunityModeratorView, CommunityView, PersonView};
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use diesel::{
pg::Pg,
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result::Error,
BoolExpressionMethods,
ExpressionMethods,
JoinOnDsl,
NullableExpressionMethods,
PgTextExpressionMethods,
QueryDsl,
};
use diesel_async::RunQueryDsl;
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use lemmy_db_schema::{
newtypes::{CommunityId, PersonId},
schema::{community, community_aggregates, community_block, community_follower, local_user},
source::{community::CommunityFollower, local_user::LocalUser},
utils::{fuzzy_search, limit_and_offset, DbConn, DbPool, ListFn, Queries, ReadFn},
ListingType,
SortType,
};
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fn queries<'a>() -> Queries<
impl ReadFn<'a, CommunityView, (CommunityId, Option<PersonId>, bool)>,
impl ListFn<'a, CommunityView, CommunityQuery<'a>>,
> {
let all_joins = |query: community::BoxedQuery<'a, Pg>, my_person_id: Option<PersonId>| {
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// The left join below will return None in this case
let person_id_join = my_person_id.unwrap_or(PersonId(-1));
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query
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.inner_join(community_aggregates::table)
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.left_join(
community_follower::table.on(
community::id
.eq(community_follower::community_id)
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.and(community_follower::person_id.eq(person_id_join)),
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),
)
.left_join(
community_block::table.on(
community::id
.eq(community_block::community_id)
.and(community_block::person_id.eq(person_id_join)),
),
)
};
let selection = (
community::all_columns,
Reduce amount of columns selected (#3755) * PostAggregatesNotInPost * CommentAggregatesNotInComment * CommunityPersonBanAdditionalInfo (partial) * Revert "CommunityPersonBanAdditionalInfo (partial)" This reverts commit 158f7f0cd9a07392fb1f457ac43c8d7c57e4190d. * Replace some nullable parts of selection with id::nullable().is_not_null() * CommunityFollower::select_subscribed_type * WithoutId * Add WithoutId derives * Update Cargo.toml * rerun ci * Fix syntatx errors * rerun ci * Add missing "|" in private_message_report_view.rs * rerun ci * cargo fmt * rerun ci * Only derive WithoutId for Community with "full" feature * rerun ci * Fix attribute filtering in WithoutId macro * rerun ci * Update without_id.rs * rerun ci * Update without_id.rs * rerun ci * Fix errors * rerun ci * cargo fmt * Fix errors * rerun ci * Move WithoutId to lib.rs * rerun ci * Remove macro_use for paste * rerun ci * Update comment_reply_view.rs * rerun ci * Update registration_application_view.rs * rerun ci * Revert "Update registration_application_view.rs" This reverts commit 2e98e4bb8385b4630ed2d1dfdd8da9a35c0126b2. * Revert "Update comment_reply_view.rs" This reverts commit 857bf9f5a2413ff0e6e6c95e1157e8ce6bf9c0c3. * Revert "Remove macro_use for paste" This reverts commit 13247279ed9090f2d3c5c6525b9611529217d605. * Revert "Move WithoutId to lib.rs" This reverts commit 0c23e5213be1366bb64029e2007e97194e126676. * Revert "Fix errors" This reverts commit a283d155e5622bba0b6df8b07649fc246df8bb77. * Revert "cargo fmt" This reverts commit 36a5210352809b3ca417ec3b869ae4baaca17e16. * Revert "Fix errors" This reverts commit c9102c14f466a5d6175732625e74183579ee2be5. * Revert "Update without_id.rs" This reverts commit 19adb2fcc805f92f6720a439f3b2c80a2b866938. * Revert "Update without_id.rs" This reverts commit e26107a2fe30cc2ec81797830e3a34a1676619e4. * Revert "Fix attribute filtering in WithoutId macro" This reverts commit acaa4902b0e7e33205c5d287cd22b83732a1a401. * Revert "Only derive WithoutId for Community with "full" feature" This reverts commit de0e9c6fdc3c9344998d9d72e5e361a7f009c829. * Revert "cargo fmt" This reverts commit 5e1bd1ce58e997e9431f212fd2ee0283faaf6da3. * Revert "Add missing "|" in private_message_report_view.rs" This reverts commit c7ae9f1cd50dfead0fbc363d93692f82274ff870. * Revert "Fix syntatx errors" This reverts commit d942f099de8128b5a02fe74f5af43a4453a06350. * Revert "Update Cargo.toml" This reverts commit 23cdb6f6d3df6d2db06173f066c117a0c96dd8e1. * Revert "Add WithoutId derives" This reverts commit 06006d6ad338e946410962f4276f67fe5096ad5a. * Revert "WithoutId" This reverts commit 5e86922b0fd5bf08d114a8eee5d1e10b2ea534ee. * Revert "CommentAggregatesNotInComment" This reverts commit 603aede7cecacd246664f7f3f0047202f80d9938. * Revert "PostAggregatesNotInPost" This reverts commit 1ee3fcaeab8705e4e0e849ae6b93b45716aa9cc0. * Restore original position of options.saved_only filter * rerun ci * Update post_view.rs * rerun ci
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CommunityFollower::select_subscribed_type(),
community_block::id.nullable().is_not_null(),
community_aggregates::all_columns,
);
let not_removed_or_deleted = community::removed
.eq(false)
.and(community::deleted.eq(false));
let read = move |mut conn: DbConn<'a>,
(community_id, my_person_id, is_mod_or_admin): (
CommunityId,
Option<PersonId>,
bool,
)| async move {
let mut query = all_joins(
community::table.find(community_id).into_boxed(),
my_person_id,
)
.select(selection);
// Hide deleted and removed for non-admins or mods
if !is_mod_or_admin {
query = query.filter(not_removed_or_deleted);
}
query.first::<CommunityView>(&mut conn).await
};
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let list = move |mut conn: DbConn<'a>, options: CommunityQuery<'a>| async move {
use SortType::*;
let my_person_id = options.local_user.map(|l| l.person_id);
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// The left join below will return None in this case
let person_id_join = my_person_id.unwrap_or(PersonId(-1));
let mut query = all_joins(community::table.into_boxed(), my_person_id)
.left_join(local_user::table.on(local_user::person_id.eq(person_id_join)))
.select(selection);
if let Some(search_term) = options.search_term {
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let searcher = fuzzy_search(&search_term);
query = query
.filter(community::name.ilike(searcher.clone()))
.or_filter(community::title.ilike(searcher))
}
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// Hide deleted and removed for non-admins or mods
if !options.is_mod_or_admin {
query = query.filter(not_removed_or_deleted).filter(
community::hidden
.eq(false)
.or(community_follower::person_id.eq(person_id_join)),
);
}
match options.sort.unwrap_or(Hot) {
Hot | Active | Scaled => query = query.order_by(community_aggregates::hot_rank.desc()),
NewComments | TopDay | TopTwelveHour | TopSixHour | TopHour => {
query = query.order_by(community_aggregates::users_active_day.desc())
}
New => query = query.order_by(community::published.desc()),
Old => query = query.order_by(community::published.asc()),
// Controversial is temporary until a CommentSortType is created
MostComments | Controversial => query = query.order_by(community_aggregates::comments.desc()),
TopAll | TopYear | TopNineMonths => {
query = query.order_by(community_aggregates::subscribers.desc())
}
TopSixMonths | TopThreeMonths => {
query = query.order_by(community_aggregates::users_active_half_year.desc())
}
TopMonth => query = query.order_by(community_aggregates::users_active_month.desc()),
TopWeek => query = query.order_by(community_aggregates::users_active_week.desc()),
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};
if let Some(listing_type) = options.listing_type {
query = match listing_type {
Reduce amount of columns selected (#3755) * PostAggregatesNotInPost * CommentAggregatesNotInComment * CommunityPersonBanAdditionalInfo (partial) * Revert "CommunityPersonBanAdditionalInfo (partial)" This reverts commit 158f7f0cd9a07392fb1f457ac43c8d7c57e4190d. * Replace some nullable parts of selection with id::nullable().is_not_null() * CommunityFollower::select_subscribed_type * WithoutId * Add WithoutId derives * Update Cargo.toml * rerun ci * Fix syntatx errors * rerun ci * Add missing "|" in private_message_report_view.rs * rerun ci * cargo fmt * rerun ci * Only derive WithoutId for Community with "full" feature * rerun ci * Fix attribute filtering in WithoutId macro * rerun ci * Update without_id.rs * rerun ci * Update without_id.rs * rerun ci * Fix errors * rerun ci * cargo fmt * Fix errors * rerun ci * Move WithoutId to lib.rs * rerun ci * Remove macro_use for paste * rerun ci * Update comment_reply_view.rs * rerun ci * Update registration_application_view.rs * rerun ci * Revert "Update registration_application_view.rs" This reverts commit 2e98e4bb8385b4630ed2d1dfdd8da9a35c0126b2. * Revert "Update comment_reply_view.rs" This reverts commit 857bf9f5a2413ff0e6e6c95e1157e8ce6bf9c0c3. * Revert "Remove macro_use for paste" This reverts commit 13247279ed9090f2d3c5c6525b9611529217d605. * Revert "Move WithoutId to lib.rs" This reverts commit 0c23e5213be1366bb64029e2007e97194e126676. * Revert "Fix errors" This reverts commit a283d155e5622bba0b6df8b07649fc246df8bb77. * Revert "cargo fmt" This reverts commit 36a5210352809b3ca417ec3b869ae4baaca17e16. * Revert "Fix errors" This reverts commit c9102c14f466a5d6175732625e74183579ee2be5. * Revert "Update without_id.rs" This reverts commit 19adb2fcc805f92f6720a439f3b2c80a2b866938. * Revert "Update without_id.rs" This reverts commit e26107a2fe30cc2ec81797830e3a34a1676619e4. * Revert "Fix attribute filtering in WithoutId macro" This reverts commit acaa4902b0e7e33205c5d287cd22b83732a1a401. * Revert "Only derive WithoutId for Community with "full" feature" This reverts commit de0e9c6fdc3c9344998d9d72e5e361a7f009c829. * Revert "cargo fmt" This reverts commit 5e1bd1ce58e997e9431f212fd2ee0283faaf6da3. * Revert "Add missing "|" in private_message_report_view.rs" This reverts commit c7ae9f1cd50dfead0fbc363d93692f82274ff870. * Revert "Fix syntatx errors" This reverts commit d942f099de8128b5a02fe74f5af43a4453a06350. * Revert "Update Cargo.toml" This reverts commit 23cdb6f6d3df6d2db06173f066c117a0c96dd8e1. * Revert "Add WithoutId derives" This reverts commit 06006d6ad338e946410962f4276f67fe5096ad5a. * Revert "WithoutId" This reverts commit 5e86922b0fd5bf08d114a8eee5d1e10b2ea534ee. * Revert "CommentAggregatesNotInComment" This reverts commit 603aede7cecacd246664f7f3f0047202f80d9938. * Revert "PostAggregatesNotInPost" This reverts commit 1ee3fcaeab8705e4e0e849ae6b93b45716aa9cc0. * Restore original position of options.saved_only filter * rerun ci * Update post_view.rs * rerun ci
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ListingType::Subscribed => query.filter(community_follower::pending.is_not_null()), // TODO could be this: and(community_follower::person_id.eq(person_id_join)),
ListingType::Local => query.filter(community::local.eq(true)),
_ => query,
};
}
// Don't show blocked communities or nsfw communities if not enabled in profile
if options.local_user.is_some() {
query = query.filter(community_block::person_id.is_null());
query = query.filter(community::nsfw.eq(false).or(local_user::show_nsfw.eq(true)));
} else {
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// No person in request, only show nsfw communities if show_nsfw is passed into request
if !options.show_nsfw {
query = query.filter(community::nsfw.eq(false));
}
}
let (limit, offset) = limit_and_offset(options.page, options.limit)?;
query
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.limit(limit)
.offset(offset)
.load::<CommunityView>(&mut conn)
.await
};
Queries::new(read, list)
}
impl CommunityView {
pub async fn read(
pool: &mut DbPool<'_>,
community_id: CommunityId,
my_person_id: Option<PersonId>,
is_mod_or_admin: bool,
) -> Result<Self, Error> {
queries()
.read(pool, (community_id, my_person_id, is_mod_or_admin))
.await
}
pub async fn is_mod_or_admin(
pool: &mut DbPool<'_>,
person_id: PersonId,
community_id: CommunityId,
) -> Result<bool, Error> {
let is_mod =
CommunityModeratorView::is_community_moderator(pool, community_id, person_id).await?;
if is_mod {
return Ok(true);
}
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PersonView::is_admin(pool, person_id).await
}
}
#[derive(Default)]
pub struct CommunityQuery<'a> {
pub listing_type: Option<ListingType>,
pub sort: Option<SortType>,
pub local_user: Option<&'a LocalUser>,
pub search_term: Option<String>,
pub is_mod_or_admin: bool,
pub show_nsfw: bool,
pub page: Option<i64>,
pub limit: Option<i64>,
}
impl<'a> CommunityQuery<'a> {
pub async fn list(self, pool: &mut DbPool<'_>) -> Result<Vec<CommunityView>, Error> {
queries().list(pool, self).await
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}
}