feat: retrive all banned users in a guild

src/objects/bans.rs

@@ -0,0 +1,56 @@
+use diesel::{ExpressionMethods, QueryDsl, Queryable, Selectable, SelectableHelper};
+use serde::{Deserialize, Serialize};
+use uuid::Uuid;
+
+use diesel_async::RunQueryDsl;
+
+use crate::{
+    error::Error, objects::{load_or_empty, Guild}, schema::guild_bans, Conn
+};
+
+
+#[derive(Selectable, Queryable, Serialize, Deserialize)]
+#[diesel(table_name = guild_bans)]
+#[diesel(check_for_backend(diesel::pg::Pg))]
+pub struct GuildBan {
+    pub guild_uuid: Uuid,
+    pub user_uuid: Uuid,
+    pub reason: Option<String>,
+    pub ban_time: chrono::DateTime<chrono::Utc>,
+}
+
+
+impl GuildBan {
+    pub async fn fetch_one(conn: &mut Conn, guild_uuid: Uuid, user_uuid: Uuid) -> Result<GuildBan, Error> {
+        use guild_bans::dsl;
+        let guild_ban = dsl::guild_bans
+            .filter(dsl::guild_uuid.eq(guild_uuid))
+            .filter(dsl::user_uuid.eq(user_uuid))
+            .select(GuildBan::as_select())
+            .get_result(conn)
+            .await?;
+
+        Ok(guild_ban)
+    }
+
+    pub async fn fetch_all(conn: &mut Conn, guild_uuid: Uuid) -> Result<Vec<Self>, Error> {
+        use guild_bans::dsl;
+        let all_guild_bans = load_or_empty(dsl::guild_bans
+            .filter(dsl::guild_uuid.eq(guild_uuid))
+            .load(conn)
+            .await
+            )?;
+        
+        Ok(all_guild_bans)
+    }
+
+    pub async fn unban(self, conn: &mut Conn) -> Result<(), Error> {
+        use guild_bans::dsl;
+        diesel::delete(guild_bans::table)
+            .filter(dsl::guild_uuid.eq(self.guild_uuid))
+            .filter(dsl::user_uuid.eq(self.user_uuid))
+            .execute(conn)
+            .await?;
+        Ok(())
+    }
+}