-use diesel::{pg::Pg, result::Error, *};
-use lemmy_db_queries::{limit_and_offset, MaybeOptional, ToSafe, ViewToVec};
+use crate::structs::PrivateMessageView;
+use diesel::{
+ debug_query,
+ pg::Pg,
+ result::Error,
+ BoolExpressionMethods,
+ ExpressionMethods,
+ JoinOnDsl,
+ QueryDsl,
+};
+use diesel_async::RunQueryDsl;
use lemmy_db_schema::{
- schema::{person, person_alias_1, private_message},
- source::{
- person::{Person, PersonAlias1, PersonSafe, PersonSafeAlias1},
- private_message::PrivateMessage,
- },
- PersonId,
- PrivateMessageId,
+ aliases,
+ newtypes::{PersonId, PrivateMessageId},
+ schema::{person, private_message},
+ source::{person::Person, private_message::PrivateMessage},
+ traits::JoinView,
+ utils::{get_conn, limit_and_offset, DbConn, DbPool, ListFn, Queries, ReadFn},
};
-use log::debug;
-use serde::Serialize;
-
-#[derive(Debug, PartialEq, Serialize, Clone)]
-pub struct PrivateMessageView {
- pub private_message: PrivateMessage,
- pub creator: PersonSafe,
- pub recipient: PersonSafeAlias1,
-}
+use tracing::debug;
-type PrivateMessageViewTuple = (PrivateMessage, PersonSafe, PersonSafeAlias1);
+type PrivateMessageViewTuple = (PrivateMessage, Person, Person);
-impl PrivateMessageView {
- pub fn read(conn: &PgConnection, private_message_id: PrivateMessageId) -> Result<Self, Error> {
- let (private_message, creator, recipient) = private_message::table
- .find(private_message_id)
+fn queries<'a>() -> Queries<
+ impl ReadFn<'a, PrivateMessageView, PrivateMessageId>,
+ impl ListFn<'a, PrivateMessageView, (PrivateMessageQuery, PersonId)>,
+> {
+ let all_joins = |query: private_message::BoxedQuery<'a, Pg>| {
+ query
.inner_join(person::table.on(private_message::creator_id.eq(person::id)))
- .inner_join(person_alias_1::table.on(private_message::recipient_id.eq(person_alias_1::id)))
- .order_by(private_message::published.desc())
- .select((
- private_message::all_columns,
- Person::safe_columns_tuple(),
- PersonAlias1::safe_columns_tuple(),
- ))
- .first::<PrivateMessageViewTuple>(conn)?;
-
- Ok(PrivateMessageView {
- private_message,
- creator,
- recipient,
- })
- }
-}
-
-pub struct PrivateMessageQueryBuilder<'a> {
- conn: &'a PgConnection,
- recipient_id: PersonId,
- unread_only: Option<bool>,
- page: Option<i64>,
- limit: Option<i64>,
-}
-
-impl<'a> PrivateMessageQueryBuilder<'a> {
- pub fn create(conn: &'a PgConnection, recipient_id: PersonId) -> Self {
- PrivateMessageQueryBuilder {
- conn,
- recipient_id,
- unread_only: None,
- page: None,
- limit: None,
- }
- }
-
- pub fn unread_only<T: MaybeOptional<bool>>(mut self, unread_only: T) -> Self {
- self.unread_only = unread_only.get_optional();
- self
- }
+ .inner_join(
+ aliases::person1.on(private_message::recipient_id.eq(aliases::person1.field(person::id))),
+ )
+ };
- pub fn page<T: MaybeOptional<i64>>(mut self, page: T) -> Self {
- self.page = page.get_optional();
- self
- }
+ let selection = (
+ private_message::all_columns,
+ person::all_columns,
+ aliases::person1.fields(person::all_columns),
+ );
- pub fn limit<T: MaybeOptional<i64>>(mut self, limit: T) -> Self {
- self.limit = limit.get_optional();
- self
- }
+ let read = move |mut conn: DbConn<'a>, private_message_id: PrivateMessageId| async move {
+ all_joins(private_message::table.find(private_message_id).into_boxed())
+ .order_by(private_message::published.desc())
+ .select(selection)
+ .first::<PrivateMessageViewTuple>(&mut conn)
+ .await
+ };
- pub fn list(self) -> Result<Vec<PrivateMessageView>, Error> {
- let mut query = private_message::table
- .inner_join(person::table.on(private_message::creator_id.eq(person::id)))
- .inner_join(person_alias_1::table.on(private_message::recipient_id.eq(person_alias_1::id)))
- .select((
- private_message::all_columns,
- Person::safe_columns_tuple(),
- PersonAlias1::safe_columns_tuple(),
- ))
- .into_boxed();
+ let list = move |mut conn: DbConn<'a>,
+ (options, recipient_id): (PrivateMessageQuery, PersonId)| async move {
+ let mut query = all_joins(private_message::table.into_boxed()).select(selection);
// If its unread, I only want the ones to me
- if self.unread_only.unwrap_or(false) {
+ if options.unread_only.unwrap_or(false) {
query = query
.filter(private_message::read.eq(false))
- .filter(private_message::recipient_id.eq(self.recipient_id));
+ .filter(private_message::recipient_id.eq(recipient_id));
}
// Otherwise, I want the ALL view to show both sent and received
else {
query = query.filter(
private_message::recipient_id
- .eq(self.recipient_id)
- .or(private_message::creator_id.eq(self.recipient_id)),
+ .eq(recipient_id)
+ .or(private_message::creator_id.eq(recipient_id)),
)
}
- let (limit, offset) = limit_and_offset(self.page, self.limit);
+ let (limit, offset) = limit_and_offset(options.page, options.limit)?;
query = query
.filter(private_message::deleted.eq(false))
debug_query::<Pg, _>(&query)
);
- let res = query.load::<PrivateMessageViewTuple>(self.conn)?;
+ query.load::<PrivateMessageViewTuple>(&mut conn).await
+ };
+
+ Queries::new(read, list)
+}
- Ok(PrivateMessageView::from_tuple_to_vec(res))
+impl PrivateMessageView {
+ pub async fn read(
+ pool: &mut DbPool<'_>,
+ private_message_id: PrivateMessageId,
+ ) -> Result<Self, Error> {
+ queries().read(pool, private_message_id).await
}
+
+ /// Gets the number of unread messages
+ pub async fn get_unread_messages(
+ pool: &mut DbPool<'_>,
+ my_person_id: PersonId,
+ ) -> Result<i64, Error> {
+ use diesel::dsl::count;
+ let conn = &mut get_conn(pool).await?;
+ private_message::table
+ .filter(private_message::read.eq(false))
+ .filter(private_message::recipient_id.eq(my_person_id))
+ .filter(private_message::deleted.eq(false))
+ .select(count(private_message::id))
+ .first::<i64>(conn)
+ .await
+ }
+}
+
+#[derive(Default)]
+pub struct PrivateMessageQuery {
+ pub unread_only: Option<bool>,
+ pub page: Option<i64>,
+ pub limit: Option<i64>,
}
-impl ViewToVec for PrivateMessageView {
- type DbTuple = PrivateMessageViewTuple;
- fn from_tuple_to_vec(items: Vec<Self::DbTuple>) -> Vec<Self> {
- items
- .iter()
- .map(|a| Self {
- private_message: a.0.to_owned(),
- creator: a.1.to_owned(),
- recipient: a.2.to_owned(),
- })
- .collect::<Vec<Self>>()
+impl PrivateMessageQuery {
+ pub async fn list(
+ self,
+ pool: &mut DbPool<'_>,
+ recipient_id: PersonId,
+ ) -> Result<Vec<PrivateMessageView>, Error> {
+ queries().list(pool, (self, recipient_id)).await
+ }
+}
+
+impl JoinView for PrivateMessageView {
+ type JoinTuple = PrivateMessageViewTuple;
+ fn from_tuple(a: Self::JoinTuple) -> Self {
+ Self {
+ private_message: a.0,
+ creator: a.1,
+ recipient: a.2,
+ }
}
}
projects / lemmy.git / blobdiff