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unread room count query as function

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This commit is contained in:
Moriz Wahl 2023-07-17 16:36:39 +02:00
parent 45db186dfd
commit 884ee1713c
2 changed files with 20 additions and 17 deletions
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14
backend/src/schema/resolvers/messages.ts
View File

@ -1,6 +1,6 @@
import { neo4jgraphql } from 'neo4j-graphql-js'
import Resolver from './helpers/Resolver'
import RoomResolver from './rooms'
import { getUnreadRoomsCount } from './rooms'
import { pubsub, ROOM_COUNT_UPDATED } from '../../server'
export default {
@ -90,16 +90,16 @@ export default {
record.get('message'),
)
// TODO change user in context - mark message as seen - chattingUser is the correct user.
const roomCountUpdated = await RoomResolver.Query.UnreadRooms(null, null, context, null)
// send subscriptions
await pubsub.publish(ROOM_COUNT_UPDATED, { roomCountUpdated, user: message.otherUser })
return message
})
try {
const message = await writeTxResultPromise
const roomCountUpdated = await getUnreadRoomsCount(currentUserId, session)
// send subscriptions
await pubsub.publish(ROOM_COUNT_UPDATED, { roomCountUpdated, user: message.otherUser })
return message
} catch (error) {
throw new Error(error)

23
backend/src/schema/resolvers/rooms.ts
View File

@ -3,6 +3,18 @@ import Resolver from './helpers/Resolver'
import { pubsub, ROOM_COUNT_UPDATED } from '../../server'
import { withFilter } from 'graphql-subscriptions'
export const getUnreadRoomsCount = async (userId, session) => {
return session.readTransaction(async (transaction) => {
const unreadRoomsCypher = `
MATCH (:User { id: $userId })-[:CHATS_IN]->(room:Room)<-[:INSIDE]-(message:Message)<-[:CREATED]-(sender:User)
WHERE NOT sender.id = $userId AND NOT message.seen
RETURN toString(COUNT(DISTINCT room)) AS count
`
const unreadRoomsTxResponse = await transaction.run(unreadRoomsCypher, { userId })
return unreadRoomsTxResponse.records.map((record) => record.get('count'))[0]
})
}
export default {
Subscription: {
roomCountUpdated: {
@ -27,17 +39,8 @@ export default {
user: { id: currentUserId },
} = context
const session = context.driver.session()
const readTxResultPromise = session.readTransaction(async (transaction) => {
const unreadRoomsCypher = `
MATCH (:User { id: $currentUserId })-[:CHATS_IN]->(room:Room)<-[:INSIDE]-(message:Message)<-[:CREATED]-(sender:User)
WHERE NOT sender.id = $currentUserId AND NOT message.seen
RETURN toString(COUNT(DISTINCT room)) AS count
`
const unreadRoomsTxResponse = await transaction.run(unreadRoomsCypher, { currentUserId })
return unreadRoomsTxResponse.records.map((record) => record.get('count'))[0]
})
try {
const count = await readTxResultPromise
const count = await getUnreadRoomsCount(currentUserId, session)
return count
} finally {
session.close()