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Improved database schema

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- Some queries are faster due to better index ordering
- Database is smaller thanks to splitting message_channel table and
  adding WITHOUT ROWID where helpful
This commit is contained in:
Cadence Ember 2023-08-28 17:32:55 +12:00
parent 21156446ee
commit fcbb045cbb
11 changed files with 114 additions and 93 deletions
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2
d2m/actions/delete-message.js
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@ -19,7 +19,7 @@ async function deleteMessage(data) {
for (const eventID of eventsToRedact) {
// Unfortuately, we can't specify a sender to do the redaction as, unless we find out that info via the audit logs
await api.redactEvent(roomID, eventID)
db.prepare("DELETE from event_message WHERE event_id = ?").run(eventID)
db.prepare("DELETE FROM event_message WHERE event_id = ?").run(eventID)
}
}

4
d2m/actions/edit-message.js
View file

@ -32,7 +32,7 @@ async function editMessage(message, guild) {
// Not redacting as the last action because the last action is likely to be shown in the room preview in clients, and we don't want it to look like somebody actually deleted a message.
for (const eventID of eventsToRedact) {
await api.redactEvent(roomID, eventID, senderMxid)
db.prepare("DELETE from event_message WHERE event_id = ?").run(eventID)
db.prepare("DELETE FROM event_message WHERE event_id = ?").run(eventID)
// TODO: If I just redacted part = 0, I should update one of the other events to make it the new part = 0, right?
}
@ -44,7 +44,7 @@ async function editMessage(message, guild) {
delete contentWithoutType.$type
const eventID = await api.sendEvent(roomID, eventType, contentWithoutType, senderMxid)
db.prepare("INSERT INTO event_message (event_id, event_type, event_subtype, message_id, channel_id, part, source) VALUES (?, ?, ?, ?, ?, 1, 1)").run(eventID, eventType, content.msgtype || null, message.id, message.channel_id) // part 1 = supporting; source 1 = discord
db.prepare("INSERT INTO event_message (event_id, event_type, event_subtype, message_id, part, source) VALUES (?, ?, ?, ?, ?, 1, 1)").run(eventID, eventType, content.msgtype || null, message.id) // part 1 = supporting; source 1 = discord
}
}

5
d2m/actions/send-message.js
View file

@ -32,6 +32,9 @@ async function sendMessage(message, guild) {
const events = await messageToEvent.messageToEvent(message, guild, {}, {api})
const eventIDs = []
let eventPart = 0 // 0 is primary, 1 is supporting
if (events.length) {
db.prepare("REPLACE INTO message_channel (message_id, channel_id) VALUES (?, ?)").run(message.id, message.channel_id)
}
for (const event of events) {
const eventType = event.$type
/** @type {Pick<typeof event, Exclude<keyof event, "$type">> & { $type?: string }} */
@ -40,7 +43,7 @@ async function sendMessage(message, guild) {
const useTimestamp = message["backfill"] ? new Date(message.timestamp).getTime() : undefined
const eventID = await api.sendEvent(roomID, eventType, eventWithoutType, senderMxid, useTimestamp)
db.prepare("INSERT INTO event_message (event_id, event_type, event_subtype, message_id, channel_id, part, source) VALUES (?, ?, ?, ?, ?, ?, 1)").run(eventID, eventType, event.msgtype || null, message.id, message.channel_id, eventPart) // source 1 = discord
db.prepare("INSERT INTO event_message (event_id, event_type, event_subtype, message_id, part, source) VALUES (?, ?, ?, ?, ?, ?, 1)").run(eventID, eventType, event.msgtype || null, message.id, eventPart) // source 1 = discord
eventPart = 1 // TODO: use more intelligent algorithm to determine whether primary or supporting
eventIDs.push(eventID)