mirror of
https://github.com/LemmyNet/lemmy.git
synced 2024-11-17 18:04:01 +00:00
137 lines
3.9 KiB
Rust
137 lines
3.9 KiB
Rust
use diesel::{pg::Pg, result::Error, *};
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use lemmy_db_queries::{limit_and_offset, MaybeOptional, ToSafe, ViewToVec};
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use lemmy_db_schema::{
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schema::{person, person_alias_1, private_message},
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source::{
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person::{Person, PersonAlias1, PersonSafe, PersonSafeAlias1},
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private_message::PrivateMessage,
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},
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PersonId,
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PrivateMessageId,
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};
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use log::debug;
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use serde::Serialize;
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#[derive(Debug, PartialEq, Serialize, Clone)]
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pub struct PrivateMessageView {
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pub private_message: PrivateMessage,
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pub creator: PersonSafe,
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pub recipient: PersonSafeAlias1,
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}
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type PrivateMessageViewTuple = (PrivateMessage, PersonSafe, PersonSafeAlias1);
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impl PrivateMessageView {
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pub fn read(conn: &PgConnection, private_message_id: PrivateMessageId) -> Result<Self, Error> {
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let (private_message, creator, recipient) = private_message::table
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.find(private_message_id)
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.inner_join(person::table.on(private_message::creator_id.eq(person::id)))
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.inner_join(person_alias_1::table.on(private_message::recipient_id.eq(person_alias_1::id)))
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.order_by(private_message::published.desc())
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.select((
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private_message::all_columns,
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Person::safe_columns_tuple(),
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PersonAlias1::safe_columns_tuple(),
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))
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.first::<PrivateMessageViewTuple>(conn)?;
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Ok(PrivateMessageView {
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private_message,
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creator,
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recipient,
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})
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}
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}
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pub struct PrivateMessageQueryBuilder<'a> {
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conn: &'a PgConnection,
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recipient_id: PersonId,
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unread_only: Option<bool>,
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page: Option<i64>,
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limit: Option<i64>,
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}
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impl<'a> PrivateMessageQueryBuilder<'a> {
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pub fn create(conn: &'a PgConnection, recipient_id: PersonId) -> Self {
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PrivateMessageQueryBuilder {
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conn,
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recipient_id,
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unread_only: None,
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page: None,
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limit: None,
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}
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}
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pub fn unread_only<T: MaybeOptional<bool>>(mut self, unread_only: T) -> Self {
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self.unread_only = unread_only.get_optional();
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self
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}
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pub fn page<T: MaybeOptional<i64>>(mut self, page: T) -> Self {
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self.page = page.get_optional();
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self
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}
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pub fn limit<T: MaybeOptional<i64>>(mut self, limit: T) -> Self {
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self.limit = limit.get_optional();
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self
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}
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pub fn list(self) -> Result<Vec<PrivateMessageView>, Error> {
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let mut query = private_message::table
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.inner_join(person::table.on(private_message::creator_id.eq(person::id)))
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.inner_join(person_alias_1::table.on(private_message::recipient_id.eq(person_alias_1::id)))
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.select((
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private_message::all_columns,
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Person::safe_columns_tuple(),
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PersonAlias1::safe_columns_tuple(),
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))
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.into_boxed();
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// If its unread, I only want the ones to me
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if self.unread_only.unwrap_or(false) {
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query = query
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.filter(private_message::read.eq(false))
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.filter(private_message::recipient_id.eq(self.recipient_id));
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}
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// Otherwise, I want the ALL view to show both sent and received
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else {
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query = query.filter(
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private_message::recipient_id
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.eq(self.recipient_id)
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.or(private_message::creator_id.eq(self.recipient_id)),
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)
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}
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let (limit, offset) = limit_and_offset(self.page, self.limit);
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query = query
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.filter(private_message::deleted.eq(false))
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.limit(limit)
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.offset(offset)
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.order_by(private_message::published.desc());
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debug!(
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"Private Message View Query: {:?}",
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debug_query::<Pg, _>(&query)
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);
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let res = query.load::<PrivateMessageViewTuple>(self.conn)?;
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Ok(PrivateMessageView::from_tuple_to_vec(res))
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}
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}
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impl ViewToVec for PrivateMessageView {
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type DbTuple = PrivateMessageViewTuple;
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fn from_tuple_to_vec(items: Vec<Self::DbTuple>) -> Vec<Self> {
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items
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.iter()
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.map(|a| Self {
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private_message: a.0.to_owned(),
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creator: a.1.to_owned(),
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recipient: a.2.to_owned(),
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})
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.collect::<Vec<Self>>()
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}
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}
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