X-Git-Url: http://these/git/?a=blobdiff_plain;f=crates%2Fdb_views%2Fsrc%2Fprivate_message_view.rs;h=55d6583baeb98c75d6604ad6349c4154097d85ac;hb=9a5a13c734a1792511e1bfef7b9ac4121e0e7371;hp=8fee2fc9bb3012c9009bf919bcb9992f6754fe63;hpb=df0a38e0ba2b283ad34161f0ee5d42f2cc8c69ea;p=lemmy.git

diff --git a/crates/db_views/src/private_message_view.rs b/crates/db_views/src/private_message_view.rs
index 8fee2fc9..55d6583b 100644
--- a/crates/db_views/src/private_message_view.rs
+++ b/crates/db_views/src/private_message_view.rs
@@ -1,109 +1,72 @@
-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))
@@ -116,22 +79,61 @@ impl<'a> PrivateMessageQueryBuilder<'a> {
       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,
+    }
   }
 }