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Events: Distribute user updates to servers.

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Fix: Deleting a server now correctly deletes all associated objects.
This commit is contained in:
Paul
2021-07-28 13:40:03 +01:00
parent 7d3ce0c96a
commit 8f6e5be1d4
13 changed files with 142 additions and 201 deletions
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169
src/database/entities/channel.rs
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@@ -4,6 +4,7 @@ use crate::database::*;
use crate::notifications::events::ClientboundNotification;
use crate::util::result::{Error, Result};
use futures::StreamExt;
use mongodb::bson::Bson;
use mongodb::{
bson::{doc, to_document, Document},
options::FindOptions,
@@ -150,11 +151,7 @@ impl Channel {
Ok(())
}
pub async fn delete(&self) -> Result<()> {
let id = self.id();
let messages = get_collection("messages");
// Delete any invites.
pub async fn delete_associated_objects(id: Bson) -> Result<()> {
get_collection("channel_invites")
.delete_many(
doc! {
@@ -163,87 +160,103 @@ impl Channel {
None,
)
.await
.map(|_| ())
.map_err(|_| Error::DatabaseError {
operation: "delete_many",
with: "channel_invites",
})
}
pub async fn delete_messages(id: Bson) -> Result<()> {
let messages = get_collection("messages");
// Delete any unreads.
get_collection("channel_unreads")
.delete_many(
doc! {
"_id.channel": &id
},
None,
)
.await
.map_err(|_| Error::DatabaseError {
operation: "delete_many",
with: "channel_unreads",
})?;
// Check if there are any attachments we need to delete.
let message_ids = messages
.find(
doc! {
"channel": &id,
"attachment": {
"$exists": 1
}
},
FindOptions::builder().projection(doc! { "_id": 1 }).build(),
)
.await
.map_err(|_| Error::DatabaseError {
operation: "fetch_many",
with: "messages",
})?
.filter_map(async move |s| s.ok())
.collect::<Vec<Document>>()
.await
.into_iter()
.filter_map(|x| x.get_str("_id").ok().map(|x| x.to_string()))
.collect::<Vec<String>>();
// If we found any, mark them as deleted.
if message_ids.len() > 0 {
get_collection("attachments")
.update_many(
doc! {
"message_id": {
"$in": message_ids
}
},
doc! {
"$set": {
"deleted": true
}
},
None,
)
.await
.map_err(|_| Error::DatabaseError {
operation: "update_many",
with: "attachments",
})?;
}
// And then delete said messages.
messages
.delete_many(
doc! {
"channel": id
},
None,
)
.await
.map(|_| ())
.map_err(|_| Error::DatabaseError {
operation: "delete_many",
with: "messages",
})
}
pub async fn delete(&self) -> Result<()> {
let id = self.id();
// Delete any invites.
Channel::delete_associated_objects(Bson::String(id.to_string())).await?;
// Delete messages.
match &self {
Channel::VoiceChannel { .. } => {},
_ => {
// Delete any unreads.
get_collection("channel_unreads")
.delete_many(
doc! {
"_id.channel": id
},
None,
)
.await
.map_err(|_| Error::DatabaseError {
operation: "delete_many",
with: "channel_unreads",
})?;
// Check if there are any attachments we need to delete.
let message_ids = messages
.find(
doc! {
"channel": id,
"attachment": {
"$exists": 1
}
},
FindOptions::builder().projection(doc! { "_id": 1 }).build(),
)
.await
.map_err(|_| Error::DatabaseError {
operation: "fetch_many",
with: "messages",
})?
.filter_map(async move |s| s.ok())
.collect::<Vec<Document>>()
.await
.into_iter()
.filter_map(|x| x.get_str("_id").ok().map(|x| x.to_string()))
.collect::<Vec<String>>();
// If we found any, mark them as deleted.
if message_ids.len() > 0 {
get_collection("attachments")
.update_many(
doc! {
"message_id": {
"$in": message_ids
}
},
doc! {
"$set": {
"deleted": true
}
},
None,
)
.await
.map_err(|_| Error::DatabaseError {
operation: "update_many",
with: "attachments",
})?;
}
// And then delete said messages.
messages
.delete_many(
doc! {
"channel": id
},
None,
)
.await
.map_err(|_| Error::DatabaseError {
operation: "delete_many",
with: "messages",
})?;
Channel::delete_messages(Bson::String(id.to_string())).await?;
}
}