1 use diesel::{pg::Pg, result::Error, *};
2 use lemmy_db_queries::{limit_and_offset, MaybeOptional, ToSafe, ViewToVec};
4 schema::{private_message, user_, user_alias_1},
6 private_message::PrivateMessage,
7 user::{UserAlias1, UserSafe, UserSafeAlias1, User_},
13 #[derive(Debug, PartialEq, Serialize, Clone)]
14 pub struct PrivateMessageView {
15 pub private_message: PrivateMessage,
16 pub creator: UserSafe,
17 pub recipient: UserSafeAlias1,
20 type PrivateMessageViewTuple = (PrivateMessage, UserSafe, UserSafeAlias1);
22 impl PrivateMessageView {
23 pub fn read(conn: &PgConnection, private_message_id: i32) -> Result<Self, Error> {
24 let (private_message, creator, recipient) = private_message::table
25 .find(private_message_id)
26 .inner_join(user_::table.on(private_message::creator_id.eq(user_::id)))
27 .inner_join(user_alias_1::table.on(private_message::recipient_id.eq(user_alias_1::id)))
28 .order_by(private_message::published.desc())
30 private_message::all_columns,
31 User_::safe_columns_tuple(),
32 UserAlias1::safe_columns_tuple(),
34 .first::<PrivateMessageViewTuple>(conn)?;
36 Ok(PrivateMessageView {
44 pub struct PrivateMessageQueryBuilder<'a> {
45 conn: &'a PgConnection,
52 impl<'a> PrivateMessageQueryBuilder<'a> {
53 pub fn create(conn: &'a PgConnection, recipient_id: i32) -> Self {
54 PrivateMessageQueryBuilder {
63 pub fn unread_only(mut self, unread_only: bool) -> Self {
64 self.unread_only = unread_only;
68 pub fn page<T: MaybeOptional<i64>>(mut self, page: T) -> Self {
69 self.page = page.get_optional();
73 pub fn limit<T: MaybeOptional<i64>>(mut self, limit: T) -> Self {
74 self.limit = limit.get_optional();
78 pub fn list(self) -> Result<Vec<PrivateMessageView>, Error> {
79 let mut query = private_message::table
80 .inner_join(user_::table.on(private_message::creator_id.eq(user_::id)))
81 .inner_join(user_alias_1::table.on(private_message::recipient_id.eq(user_alias_1::id)))
83 private_message::all_columns,
84 User_::safe_columns_tuple(),
85 UserAlias1::safe_columns_tuple(),
89 // If its unread, I only want the ones to me
92 .filter(private_message::read.eq(false))
93 .filter(private_message::recipient_id.eq(self.recipient_id));
95 // Otherwise, I want the ALL view to show both sent and received
98 private_message::recipient_id
99 .eq(self.recipient_id)
100 .or(private_message::creator_id.eq(self.recipient_id)),
104 let (limit, offset) = limit_and_offset(self.page, self.limit);
107 .filter(private_message::deleted.eq(false))
110 .order_by(private_message::published.desc());
113 "Private Message View Query: {:?}",
114 debug_query::<Pg, _>(&query)
117 let res = query.load::<PrivateMessageViewTuple>(self.conn)?;
119 Ok(PrivateMessageView::from_tuple_to_vec(res))
123 impl ViewToVec for PrivateMessageView {
124 type DbTuple = PrivateMessageViewTuple;
125 fn from_tuple_to_vec(items: Vec<Self::DbTuple>) -> Vec<Self> {
129 private_message: a.0.to_owned(),
130 creator: a.1.to_owned(),
131 recipient: a.2.to_owned(),
133 .collect::<Vec<Self>>()