lemmy/crates/db_views/src/comment_report_view.rs

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use diesel::{result::Error, *};
use lemmy_db_queries::{limit_and_offset, MaybeOptional, ToSafe, ViewToVec};
use lemmy_db_schema::{
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schema::{comment, comment_report, community, post, person, person_alias_1, person_alias_2},
source::{
comment::Comment,
comment_report::CommentReport,
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community::{Community, CommunitySafe},
post::Post,
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person::{PersonAlias1, PersonAlias2, PersonSafe, PersonSafeAlias1, PersonSafeAlias2, Person},
},
};
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use serde::Serialize;
#[derive(Debug, PartialEq, Serialize, Clone)]
pub struct CommentReportView {
pub comment_report: CommentReport,
pub comment: Comment,
pub post: Post,
pub community: CommunitySafe,
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pub creator: PersonSafe,
pub comment_creator: PersonSafeAlias1,
pub resolver: Option<PersonSafeAlias2>,
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}
type CommentReportViewTuple = (
CommentReport,
Comment,
Post,
CommunitySafe,
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PersonSafe,
PersonSafeAlias1,
Option<PersonSafeAlias2>,
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);
impl CommentReportView {
/// returns the CommentReportView for the provided report_id
///
/// * `report_id` - the report id to obtain
pub fn read(conn: &PgConnection, report_id: i32) -> Result<Self, Error> {
let (comment_report, comment, post, community, creator, comment_creator, resolver) =
comment_report::table
.find(report_id)
.inner_join(comment::table)
.inner_join(post::table.on(comment::post_id.eq(post::id)))
.inner_join(community::table.on(post::community_id.eq(community::id)))
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.inner_join(person::table.on(comment_report::creator_id.eq(person::id)))
.inner_join(person_alias_1::table.on(post::creator_id.eq(person_alias_1::id)))
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.left_join(
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person_alias_2::table.on(comment_report::resolver_id.eq(person_alias_2::id.nullable())),
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)
.select((
comment_report::all_columns,
comment::all_columns,
post::all_columns,
Community::safe_columns_tuple(),
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Person::safe_columns_tuple(),
PersonAlias1::safe_columns_tuple(),
PersonAlias2::safe_columns_tuple().nullable(),
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))
.first::<CommentReportViewTuple>(conn)?;
Ok(Self {
comment_report,
comment,
post,
community,
creator,
comment_creator,
resolver,
})
}
/// returns the current unresolved post report count for the supplied community ids
///
/// * `community_ids` - a Vec<i32> of community_ids to get a count for
/// TODO this eq_any is a bad way to do this, would be better to join to communitymoderator
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/// for a person id
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pub fn get_report_count(conn: &PgConnection, community_ids: &[i32]) -> Result<i64, Error> {
use diesel::dsl::*;
comment_report::table
.inner_join(comment::table)
.inner_join(post::table.on(comment::post_id.eq(post::id)))
.filter(
comment_report::resolved
.eq(false)
.and(post::community_id.eq_any(community_ids)),
)
.select(count(comment_report::id))
.first::<i64>(conn)
}
}
pub struct CommentReportQueryBuilder<'a> {
conn: &'a PgConnection,
community_ids: Option<Vec<i32>>, // TODO bad way to do this
page: Option<i64>,
limit: Option<i64>,
resolved: Option<bool>,
}
impl<'a> CommentReportQueryBuilder<'a> {
pub fn create(conn: &'a PgConnection) -> Self {
CommentReportQueryBuilder {
conn,
community_ids: None,
page: None,
limit: None,
resolved: Some(false),
}
}
pub fn community_ids<T: MaybeOptional<Vec<i32>>>(mut self, community_ids: T) -> Self {
self.community_ids = community_ids.get_optional();
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 resolved<T: MaybeOptional<bool>>(mut self, resolved: T) -> Self {
self.resolved = resolved.get_optional();
self
}
pub fn list(self) -> Result<Vec<CommentReportView>, Error> {
let mut query = comment_report::table
.inner_join(comment::table)
.inner_join(post::table.on(comment::post_id.eq(post::id)))
.inner_join(community::table.on(post::community_id.eq(community::id)))
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.inner_join(person::table.on(comment_report::creator_id.eq(person::id)))
.inner_join(person_alias_1::table.on(post::creator_id.eq(person_alias_1::id)))
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.left_join(
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person_alias_2::table.on(comment_report::resolver_id.eq(person_alias_2::id.nullable())),
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)
.select((
comment_report::all_columns,
comment::all_columns,
post::all_columns,
Community::safe_columns_tuple(),
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Person::safe_columns_tuple(),
PersonAlias1::safe_columns_tuple(),
PersonAlias2::safe_columns_tuple().nullable(),
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))
.into_boxed();
if let Some(comm_ids) = self.community_ids {
query = query.filter(post::community_id.eq_any(comm_ids));
}
if let Some(resolved_flag) = self.resolved {
query = query.filter(comment_report::resolved.eq(resolved_flag));
}
let (limit, offset) = limit_and_offset(self.page, self.limit);
let res = query
.order_by(comment_report::published.asc())
.limit(limit)
.offset(offset)
.load::<CommentReportViewTuple>(self.conn)?;
Ok(CommentReportView::from_tuple_to_vec(res))
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}
}
impl ViewToVec for CommentReportView {
type DbTuple = CommentReportViewTuple;
fn from_tuple_to_vec(items: Vec<Self::DbTuple>) -> Vec<Self> {
items
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.iter()
.map(|a| Self {
comment_report: a.0.to_owned(),
comment: a.1.to_owned(),
post: a.2.to_owned(),
community: a.3.to_owned(),
creator: a.4.to_owned(),
comment_creator: a.5.to_owned(),
resolver: a.6.to_owned(),
})
.collect::<Vec<Self>>()
}
}