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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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16
d2m/converters/message-to-event.js
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@ -79,9 +79,10 @@ async function messageToEvent(message, guild, options = {}, di) {
const ref = message.message_reference
assert(ref)
assert(ref.message_id)
const row = db.prepare("SELECT room_id, event_id FROM event_message INNER JOIN channel_room USING (channel_id) WHERE channel_id = ? AND message_id = ?").get(ref.channel_id, ref.message_id)
if (!row) return []
const event = await di.api.getEvent(row.room_id, row.event_id)
const eventID = db.prepare("SELECT event_id FROM event_message WHERE message_id = ?").pluck().get(ref.message_id)
const roomID = db.prepare("SELECT room_id FROM channel_room WHERE channel_id = ?").pluck().get(ref.channel_id)
if (!eventID || !roomID) return []
const event = await di.api.getEvent(roomID, eventID)
return [{
...event.content,
$type: event.type
@ -118,7 +119,7 @@ async function messageToEvent(message, guild, options = {}, di) {
// Mentions scenarios 1 and 2, part A. i.e. translate relevant message.mentions to m.mentions
// (Still need to do scenarios 1 and 2 part B, and scenario 3.)
if (message.type === DiscordTypes.MessageType.Reply && message.message_reference?.message_id) {
const row = db.prepare("SELECT event_id, room_id, source FROM event_message INNER JOIN channel_room USING (channel_id) WHERE message_id = ? AND part = 0").get(message.message_reference.message_id)
const row = db.prepare("SELECT event_id, room_id, source FROM event_message INNER JOIN message_channel USING (message_id) INNER JOIN channel_room USING (channel_id) WHERE message_id = ? AND part = 0").get(message.message_reference.message_id)
if (row) {
repliedToEventId = row.event_id
repliedToEventRoomId = row.room_id
@ -144,9 +145,10 @@ async function messageToEvent(message, guild, options = {}, di) {
if (message.content) {
let content = message.content
content = content.replace(/https:\/\/(?:ptb\.|canary\.|www\.)?discord(?:app)?\.com\/channels\/([0-9]+)\/([0-9]+)\/([0-9]+)/, (whole, guildID, channelID, messageID) => {
const row = db.prepare("SELECT room_id, event_id FROM event_message INNER JOIN channel_room USING (channel_id) WHERE channel_id = ? AND message_id = ? AND part = 0").get(channelID, messageID)
if (row) {
return `https://matrix.to/#/${row.room_id}/${row.event_id}`
const eventID = db.prepare("SELECT event_id FROM event_message WHERE message_id = ?").pluck().get(messageID)
const roomID = db.prepare("SELECT room_id FROM channel_room WHERE channel_id = ?").pluck().get(channelID)
if (eventID && roomID) {
return `https://matrix.to/#/${roomID}/${eventID}`
} else {
return `${whole} [event not found]`
}