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comment pagination with limit/offset (#1824)

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* basic query with limit/offset

* roughly working increment

* working limiting/pageable queries

* denormalize direct comments + full comments below threshold

* notifications in megathread + working nest view more buttons

* fix empty comment footer

* make comments nested resolver again

* use time in cursor to avoid duplicates

* squash migrations

* do not need item.comments undefined checks
This commit is contained in:
Keyan 2025-01-29 19:00:05 -06:00 committed by GitHub
parent bd84b8bf88
commit 01b021a337
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GPG Key ID: B5690EEEBB952194
18 changed files with 338 additions and 62 deletions
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4
api/paidAction/itemCreate.js
View File

@ -235,7 +235,9 @@ export async function onPaid ({ invoice, id }, context) {
SET ncomments = "Item".ncomments + 1,
"lastCommentAt" = GREATEST("Item"."lastCommentAt", comment.created_at),
"weightedComments" = "Item"."weightedComments" +
CASE WHEN comment."userId" = "Item"."userId" THEN 0 ELSE comment.trust END
CASE WHEN comment."userId" = "Item"."userId" THEN 0 ELSE comment.trust END,
"nDirectComments" = "Item"."nDirectComments" +
CASE WHEN comment."parentId" = "Item".id THEN 1 ELSE 0 END
FROM comment
WHERE "Item".path @> comment.path AND "Item".id <> comment.id
RETURNING "Item".*

100
api/resolvers/item.js
View File

@ -9,7 +9,10 @@ import {
USER_ID, POLL_COST, ADMIN_ITEMS, GLOBAL_SEED,
NOFOLLOW_LIMIT, UNKNOWN_LINK_REL, SN_ADMIN_IDS,
BOOST_MULT,
ITEM_EDIT_SECONDS
ITEM_EDIT_SECONDS,
COMMENTS_LIMIT,
COMMENTS_OF_COMMENT_LIMIT,
FULL_COMMENTS_THRESHOLD
} from '@/lib/constants'
import { msatsToSats } from '@/lib/format'
import { parse } from 'tldts'
@ -25,39 +28,76 @@ import { GqlAuthenticationError, GqlInputError } from '@/lib/error'
import { verifyHmac } from './wallet'
function commentsOrderByClause (me, models, sort) {
const sharedSortsArray = []
sharedSortsArray.push('("Item"."pinId" IS NOT NULL) DESC')
sharedSortsArray.push('("Item"."deletedAt" IS NULL) DESC')
const sharedSorts = sharedSortsArray.join(', ')
if (sort === 'recent') {
return 'ORDER BY ("Item"."deletedAt" IS NULL) DESC, ("Item".cost > 0 OR "Item"."weightedVotes" - "Item"."weightedDownVotes" > 0) DESC, COALESCE("Item"."invoicePaidAt", "Item".created_at) DESC, "Item".id DESC'
return `ORDER BY ${sharedSorts},
("Item".cost > 0 OR "Item"."weightedVotes" - "Item"."weightedDownVotes" > 0) DESC,
COALESCE("Item"."invoicePaidAt", "Item".created_at) DESC, "Item".id DESC`
}
if (me && sort === 'hot') {
return `ORDER BY ("Item"."deletedAt" IS NULL) DESC, COALESCE(
personal_hot_score,
${orderByNumerator({ models, commentScaler: 0, considerBoost: true })}/POWER(GREATEST(3, EXTRACT(EPOCH FROM (now_utc() - "Item".created_at))/3600), 1.3)) DESC NULLS LAST,
"Item".msats DESC, ("Item".cost > 0) DESC, "Item".id DESC`
return `ORDER BY ${sharedSorts},
"personal_hot_score" DESC NULLS LAST,
"Item".msats DESC, ("Item".cost > 0) DESC, "Item".id DESC`
} else {
if (sort === 'top') {
return `ORDER BY ("Item"."deletedAt" IS NULL) DESC, ${orderByNumerator({ models, commentScaler: 0 })} DESC NULLS LAST, "Item".msats DESC, ("Item".cost > 0) DESC, "Item".id DESC`
return `ORDER BY ${sharedSorts}, ${orderByNumerator({ models, commentScaler: 0 })} DESC NULLS LAST, "Item".msats DESC, ("Item".cost > 0) DESC, "Item".id DESC`
} else {
return `ORDER BY ("Item"."deletedAt" IS NULL) DESC, ${orderByNumerator({ models, commentScaler: 0, considerBoost: true })}/POWER(GREATEST(3, EXTRACT(EPOCH FROM (now_utc() - "Item".created_at))/3600), 1.3) DESC NULLS LAST, "Item".msats DESC, ("Item".cost > 0) DESC, "Item".id DESC`
return `ORDER BY ${sharedSorts}, ${orderByNumerator({ models, commentScaler: 0, considerBoost: true })}/POWER(GREATEST(3, EXTRACT(EPOCH FROM (now_utc() - "Item".created_at))/3600), 1.3) DESC NULLS LAST, "Item".msats DESC, ("Item".cost > 0) DESC, "Item".id DESC`
}
}
}
async function comments (me, models, id, sort) {
async function comments (me, models, item, sort, cursor) {
const orderBy = commentsOrderByClause(me, models, sort)
if (me) {
const filter = ` AND ("Item"."invoiceActionState" IS NULL OR "Item"."invoiceActionState" = 'PAID' OR "Item"."userId" = ${me.id}) `
const [{ item_comments_zaprank_with_me: comments }] = await models.$queryRawUnsafe(
'SELECT item_comments_zaprank_with_me($1::INTEGER, $2::INTEGER, $3::INTEGER, $4::INTEGER, $5, $6)',
Number(id), GLOBAL_SEED, Number(me.id), COMMENT_DEPTH_LIMIT, filter, orderBy)
return comments
if (item.nDirectComments === 0) {
return {
comments: [],
cursor: null
}
}
const filter = ' AND ("Item"."invoiceActionState" IS NULL OR "Item"."invoiceActionState" = \'PAID\') '
const [{ item_comments: comments }] = await models.$queryRawUnsafe(
'SELECT item_comments($1::INTEGER, $2::INTEGER, $3, $4)', Number(id), COMMENT_DEPTH_LIMIT, filter, orderBy)
return comments
const decodedCursor = decodeCursor(cursor)
const offset = decodedCursor.offset
// XXX what a mess
let comments
if (me) {
const filter = ` AND ("Item"."invoiceActionState" IS NULL OR "Item"."invoiceActionState" = 'PAID' OR "Item"."userId" = ${me.id}) AND "Item".created_at <= '${decodedCursor.time.toISOString()}'::TIMESTAMP(3) `
if (item.ncomments > FULL_COMMENTS_THRESHOLD) {
const [{ item_comments_zaprank_with_me_limited: limitedComments }] = await models.$queryRawUnsafe(
'SELECT item_comments_zaprank_with_me_limited($1::INTEGER, $2::INTEGER, $3::INTEGER, $4::INTEGER, $5::INTEGER, $6::INTEGER, $7::INTEGER, $8, $9)',
Number(item.id), GLOBAL_SEED, Number(me.id), COMMENTS_LIMIT, offset, COMMENTS_OF_COMMENT_LIMIT, COMMENT_DEPTH_LIMIT, filter, orderBy)
comments = limitedComments
} else {
const [{ item_comments_zaprank_with_me: fullComments }] = await models.$queryRawUnsafe(
'SELECT item_comments_zaprank_with_me($1::INTEGER, $2::INTEGER, $3::INTEGER, $4::INTEGER, $5, $6)',
Number(item.id), GLOBAL_SEED, Number(me.id), COMMENT_DEPTH_LIMIT, filter, orderBy)
comments = fullComments
}
} else {
const filter = ` AND ("Item"."invoiceActionState" IS NULL OR "Item"."invoiceActionState" = 'PAID') AND "Item".created_at <= '${decodedCursor.time.toISOString()}'::TIMESTAMP(3) `
if (item.ncomments > FULL_COMMENTS_THRESHOLD) {
const [{ item_comments_limited: limitedComments }] = await models.$queryRawUnsafe(
'SELECT item_comments_limited($1::INTEGER, $2::INTEGER, $3::INTEGER, $4::INTEGER, $5::INTEGER, $6, $7)',
Number(item.id), COMMENTS_LIMIT, offset, COMMENTS_OF_COMMENT_LIMIT, COMMENT_DEPTH_LIMIT, filter, orderBy)
comments = limitedComments
} else {
const [{ item_comments: fullComments }] = await models.$queryRawUnsafe(
'SELECT item_comments($1::INTEGER, $2::INTEGER, $3, $4)', Number(item.id), COMMENT_DEPTH_LIMIT, filter, orderBy)
comments = fullComments
}
}
return {
comments,
cursor: comments.length + offset < item.nDirectComments ? nextCursorEncoded(decodedCursor, COMMENTS_LIMIT) : null
}
}
export async function getItem (parent, { id }, { me, models }) {
@ -1173,11 +1213,25 @@ export default {
}
})
},
comments: async (item, { sort }, { me, models }) => {
if (typeof item.comments !== 'undefined') return item.comments
if (item.ncomments === 0) return []
comments: async (item, { sort, cursor }, { me, models }) => {
if (typeof item.comments !== 'undefined') {
if (Array.isArray(item.comments)) {
return {
comments: item.comments,
cursor: null
}
}
return item.comments
}
return comments(me, models, item.id, sort || defaultCommentSort(item.pinId, item.bioId, item.createdAt))
if (item.ncomments === 0) {
return {
comments: [],
cursor: null
}
}
return comments(me, models, item, sort || defaultCommentSort(item.pinId, item.bioId, item.createdAt), cursor)
},
freedFreebie: async (item) => {
return item.weightedVotes - item.weightedDownVotes > 0

3
api/typeDefs/item.js
View File

@ -145,7 +145,8 @@ export default gql`
bio: Boolean!
paidImgLink: Boolean
ncomments: Int!
comments(sort: String): [Item!]!
nDirectComments: Int!
comments(sort: String, cursor: String): Comments!
path: String
position: Int
prior: Int

26
components/comment.js
View File

@ -254,11 +254,17 @@ export default function Comment ({
</Reply>}
{children}
<div className={styles.comments}>
{item.comments && !noComments
? item.comments.map((item) => (
<Comment depth={depth + 1} key={item.id} item={item} />
))
{item.comments.comments && !noComments
? (
<>
{item.comments.comments.map((item) => (
<Comment depth={depth + 1} key={item.id} item={item} />
))}
{item.comments.comments.length < item.nDirectComments && <ViewAllReplies id={item.id} nshown={item.comments.comments.length} nhas={item.nDirectComments} />}
</>
)
: null}
{/* TODO: add link to more comments if they're limited */}
</div>
</div>
)
@ -267,6 +273,18 @@ export default function Comment ({
)
}
export function ViewAllReplies ({ id, nshown, nhas }) {
const text = `view all ${nhas} replies`
return (
<div className={`d-block fw-bold ${styles.comment} pb-2 ps-3`}>
<Link href={`/items/${id}`} as={`/items/${id}`} className='text-muted'>
{text}
</Link>
</div>
)
}
export function CommentSkeleton ({ skeletonChildren }) {
return (
<div className={styles.comment}>

17
components/comments.js
View File

@ -1,4 +1,4 @@
import { Fragment } from 'react'
import { Fragment, useMemo } from 'react'
import Comment, { CommentSkeleton } from './comment'
import styles from './header.module.css'
import Nav from 'react-bootstrap/Nav'
@ -6,6 +6,8 @@ import Navbar from 'react-bootstrap/Navbar'
import { numWithUnits } from '@/lib/format'
import { defaultCommentSort } from '@/lib/item'
import { useRouter } from 'next/router'
import MoreFooter from './more-footer'
import { FULL_COMMENTS_THRESHOLD } from '@/lib/constants'
export function CommentsHeader ({ handleSort, pinned, bio, parentCreatedAt, commentSats }) {
const router = useRouter()
@ -60,10 +62,13 @@ export function CommentsHeader ({ handleSort, pinned, bio, parentCreatedAt, comm
)
}
export default function Comments ({ parentId, pinned, bio, parentCreatedAt, commentSats, comments, ...props }) {
export default function Comments ({
parentId, pinned, bio, parentCreatedAt,
commentSats, comments, commentsCursor, fetchMoreComments, ncomments, ...props
}) {
const router = useRouter()
const pins = comments?.filter(({ position }) => !!position).sort((a, b) => a.position - b.position)
const pins = useMemo(() => comments?.filter(({ position }) => !!position).sort((a, b) => a.position - b.position), [comments])
return (
<>
@ -91,6 +96,12 @@ export default function Comments ({ parentId, pinned, bio, parentCreatedAt, comm
{comments.filter(({ position }) => !position).map(item => (
<Comment depth={1} key={item.id} item={item} {...props} />
))}
{ncomments > FULL_COMMENTS_THRESHOLD &&
<MoreFooter
cursor={commentsCursor} fetchMore={fetchMoreComments} noMoreText=' '
count={comments?.length}
Skeleton={CommentsSkeleton}
/>}
</>
)
}

8
components/item-full.js
View File

@ -160,7 +160,7 @@ function ItemText ({ item }) {
: <Text itemId={item.id} topLevel rel={item.rel ?? UNKNOWN_LINK_REL} outlawed={item.outlawed} imgproxyUrls={item.imgproxyUrls}>{item.text}</Text>
}
export default function ItemFull ({ item, bio, rank, ...props }) {
export default function ItemFull ({ item, fetchMoreComments, bio, rank, ...props }) {
useEffect(() => {
commentsViewed(item)
}, [item.lastCommentAt])
@ -186,7 +186,11 @@ export default function ItemFull ({ item, bio, rank, ...props }) {
<div className={styles.comments}>
<Comments
parentId={item.id} parentCreatedAt={item.createdAt}
pinned={item.position} bio={bio} commentSats={item.commentSats} comments={item.comments}
pinned={item.position} bio={bio} commentSats={item.commentSats}
ncomments={item.ncomments}
comments={item.comments.comments}
commentsCursor={item.comments.cursor}
fetchMoreComments={fetchMoreComments}
/>
</div>}
</CarouselProvider>

11
components/reply.js
View File

@ -55,9 +55,9 @@ export default forwardRef(function Reply ({
const placeholder = useMemo(() => {
return [
'comment for currency?',
'comment for currency',
'fractions of a penny for your thoughts?',
'put your money where your mouth is?'
'put your money where your mouth is'
][parentId % 3]
}, [parentId])
@ -70,13 +70,16 @@ export default forwardRef(function Reply ({
cache.modify({
id: `Item:${parentId}`,
fields: {
comments (existingCommentRefs = []) {
comments (existingComments = {}) {
const newCommentRef = cache.writeFragment({
data: result,
fragment: COMMENTS,
fragmentName: 'CommentsRecursive'
})
return [newCommentRef, ...existingCommentRefs]
return {
cursor: existingComments.cursor,
comments: [newCommentRef, ...(existingComments?.comments || [])]
}
}
},
optimistic: true

14
fragments/comments.js
View File

@ -46,6 +46,7 @@ export const COMMENT_FIELDS = gql`
mine
otsHash
ncomments
nDirectComments
imgproxyUrls
rel
apiKey
@ -66,6 +67,7 @@ export const COMMENTS_ITEM_EXT_FIELDS = gql`
id
title
bounty
ncomments
bountyPaidTo
subName
sub {
@ -89,19 +91,23 @@ export const COMMENTS = gql`
fragment CommentsRecursive on Item {
...CommentFields
comments {
...CommentFields
comments {
...CommentFields
comments {
...CommentFields
comments {
...CommentFields
comments {
...CommentFields
comments {
...CommentFields
comments {
...CommentFields
comments {
...CommentFields
comments {
comments {
...CommentFields
}
}
}
}
}
}

11
fragments/items.js
View File

@ -57,6 +57,7 @@ export const ITEM_FIELDS = gql`
freebie
bio
ncomments
nDirectComments
commentSats
commentCredits
lastCommentAt
@ -94,6 +95,7 @@ export const ITEM_FULL_FIELDS = gql`
bountyPaidTo
subName
mine
ncomments
user {
id
name
@ -166,13 +168,16 @@ export const ITEM_FULL = gql`
${ITEM_FULL_FIELDS}
${POLL_FIELDS}
${COMMENTS}
query Item($id: ID!, $sort: String) {
query Item($id: ID!, $sort: String, $cursor: String) {
item(id: $id) {
...ItemFullFields
prior
...PollFields
comments(sort: $sort) {
...CommentsRecursive
comments(sort: $sort, cursor: $cursor) {
cursor
comments {
...CommentsRecursive
}
}
}
}`

4
fragments/paidAction.js
View File

@ -25,7 +25,9 @@ const ITEM_PAID_ACTION_FIELDS = gql`
reminderScheduledAt
...CommentFields
comments {
...CommentsRecursive
comments {
...CommentsRecursive
}
}
}
}`

13
fragments/users.js
View File

@ -297,17 +297,20 @@ export const USER_FULL = gql`
${USER_FIELDS}
${ITEM_FULL_FIELDS}
${COMMENTS}
query User($name: String!, $sort: String) {
query User($name: String!, $sort: String, $cursor: String) {
user(name: $name) {
...UserFields
bio {
...ItemFullFields
comments(sort: $sort) {
...CommentsRecursive
comments(sort: $sort, cursor: $cursor) {
cursor
comments {
...CommentsRecursive
}
}
}
}
}`
}
}`
export const USER = gql`
${USER_FIELDS}

21
lib/apollo.js
View File

@ -1,7 +1,7 @@
import { ApolloClient, InMemoryCache, HttpLink, makeVar, split } from '@apollo/client'
import { BatchHttpLink } from '@apollo/client/link/batch-http'
import { decodeCursor, LIMIT } from './cursor'
import { SSR } from './constants'
import { COMMENTS_LIMIT, SSR } from './constants'
function isFirstPage (cursor, existingThings, limit = LIMIT) {
if (cursor) {
@ -201,12 +201,6 @@ function getClient (uri) {
}
}
},
comments: {
keyArgs: ['id', 'sort'],
merge (existing, incoming) {
return incoming
}
},
related: {
keyArgs: ['id', 'title', 'minMatch', 'limit'],
merge (existing, incoming, { args }) {
@ -277,6 +271,19 @@ function getClient (uri) {
},
Item: {
fields: {
comments: {
keyArgs: ['sort'],
merge (existing, incoming) {
if (isFirstPage(incoming.cursor, existing?.comments, COMMENTS_LIMIT)) {
return incoming
}
return {
cursor: incoming.cursor,
comments: [...(existing?.comments || []), ...incoming.comments]
}
}
},
meAnonSats: {
read (existingAmount, { readField }) {
if (SSR) return null

5
lib/constants.js
View File

@ -40,7 +40,10 @@ export const BOUNTY_MAX = 10000000
export const POST_TYPES = ['LINK', 'DISCUSSION', 'BOUNTY', 'POLL']
export const TERRITORY_BILLING_TYPES = ['MONTHLY', 'YEARLY', 'ONCE']
export const TERRITORY_GRACE_DAYS = 5
export const COMMENT_DEPTH_LIMIT = 8
export const COMMENT_DEPTH_LIMIT = 6
export const COMMENTS_LIMIT = 50
export const FULL_COMMENTS_THRESHOLD = 200
export const COMMENTS_OF_COMMENT_LIMIT = 2
export const MAX_TITLE_LENGTH = 80
export const MIN_TITLE_LENGTH = 5
export const MAX_POST_TEXT_LENGTH = 100000 // 100k

1
lib/cursor.js
View File

@ -5,6 +5,7 @@ export function decodeCursor (cursor) {
return { offset: 0, time: new Date() }
} else {
const res = JSON.parse(Buffer.from(cursor, 'base64'))
res.offset = Number(res.offset)
res.time = new Date(res.time)
return res
}

6
lib/item.js
View File

@ -1,4 +1,4 @@
import { COMMENT_DEPTH_LIMIT, OLD_ITEM_DAYS } from './constants'
import { COMMENT_DEPTH_LIMIT, FULL_COMMENTS_THRESHOLD, OLD_ITEM_DAYS } from './constants'
import { datePivot } from './time'
export const defaultCommentSort = (pinned, bio, createdAt) => {
@ -106,6 +106,10 @@ export const deleteReminders = async ({ id, userId, models }) => {
}
export const commentSubTreeRootId = (item) => {
if (item.root?.ncomments > FULL_COMMENTS_THRESHOLD) {
return item.id
}
const path = item.path.split('.')
return path.slice(-(COMMENT_DEPTH_LIMIT - 1))[0]
}

8
pages/items/[id]/index.js
View File

@ -14,15 +14,19 @@ export const getServerSideProps = getGetServerSideProps({
export default function Item ({ ssrData }) {
const router = useRouter()
const { data } = useQuery(ITEM_FULL, { variables: { ...router.query } })
const { data, fetchMore } = useQuery(ITEM_FULL, { variables: { ...router.query } })
if (!data && !ssrData) return <PageLoading />
const { item } = data || ssrData
const sub = item.subName || item.root?.subName
const fetchMoreComments = async () => {
await fetchMore({ variables: { ...router.query, cursor: item.comments.cursor } })
}
return (
<Layout sub={sub} item={item}>
<ItemFull item={item} />
<ItemFull item={item} fetchMoreComments={fetchMoreComments} />
</Layout>
)
}

147
prisma/migrations/20250118010433_comment_pages/migration.sql Normal file
View File

@ -0,0 +1,147 @@
-- AlterTable
ALTER TABLE "Item" ADD COLUMN "nDirectComments" INTEGER NOT NULL DEFAULT 0;
-- Update nDirectComments
UPDATE "Item"
SET "nDirectComments" = "DirectComments"."nDirectComments"
FROM (
SELECT "Item"."parentId" AS "id", COUNT(*) AS "nDirectComments"
FROM "Item"
WHERE "Item"."parentId" IS NOT NULL
GROUP BY "Item"."parentId"
) AS "DirectComments"
WHERE "Item"."id" = "DirectComments"."id";
-- add limit and offset
CREATE OR REPLACE FUNCTION item_comments_zaprank_with_me_limited(
_item_id int, _global_seed int, _me_id int, _limit int, _offset int, _grandchild_limit int,
_level int, _where text, _order_by text)
RETURNS jsonb
LANGUAGE plpgsql VOLATILE PARALLEL SAFE AS
$$
DECLARE
result jsonb;
BEGIN
IF _level < 1 THEN
RETURN '[]'::jsonb;
END IF;
EXECUTE 'CREATE TEMP TABLE IF NOT EXISTS t_item ON COMMIT DROP AS '
|| 'WITH RECURSIVE base AS ( '
|| ' (SELECT "Item".*, 1 as level, ROW_NUMBER() OVER () as rn, '
|| ' GREATEST(g.tf_hot_score, l.tf_hot_score) AS personal_hot_score, '
|| ' GREATEST(g.tf_top_score, l.tf_top_score) AS personal_top_score '
|| ' FROM "Item" '
|| ' LEFT JOIN zap_rank_personal_view g ON g."viewerId" = $2 AND g.id = "Item".id '
|| ' LEFT JOIN zap_rank_personal_view l ON l."viewerId" = $3 AND l.id = g.id '
|| ' WHERE "Item"."parentId" = $1 '
|| _order_by || ' '
|| ' LIMIT $4 '
|| ' OFFSET $5) '
|| ' UNION ALL '
|| ' (SELECT "Item".*, b.level + 1, ROW_NUMBER() OVER (PARTITION BY "Item"."parentId" ' || _order_by || ') as rn, '
|| ' GREATEST(g.tf_hot_score, l.tf_hot_score) AS personal_hot_score, '
|| ' GREATEST(g.tf_top_score, l.tf_top_score) AS personal_top_score '
|| ' FROM "Item" '
|| ' JOIN base b ON "Item"."parentId" = b.id '
|| ' LEFT JOIN zap_rank_personal_view g ON g."viewerId" = $2 AND g.id = "Item".id '
|| ' LEFT JOIN zap_rank_personal_view l ON l."viewerId" = $3 AND l.id = g.id '
|| ' WHERE b.level < $7 AND (b.level = 1 OR b.rn <= $6)) '
|| ') '
|| 'SELECT "Item".*, '
|| ' "Item".created_at at time zone ''UTC'' AS "createdAt", '
|| ' "Item".updated_at at time zone ''UTC'' AS "updatedAt", '
|| ' "Item"."invoicePaidAt" at time zone ''UTC'' AS "invoicePaidAtUTC", '
|| ' to_jsonb(users.*) || jsonb_build_object(''meMute'', "Mute"."mutedId" IS NOT NULL) AS user, '
|| ' COALESCE("ItemAct"."meMsats", 0) AS "meMsats", '
|| ' COALESCE("ItemAct"."mePendingMsats", 0) as "mePendingMsats", '
|| ' COALESCE("ItemAct"."meDontLikeMsats", 0) AS "meDontLikeMsats", '
|| ' COALESCE("ItemAct"."meMcredits", 0) AS "meMcredits", '
|| ' COALESCE("ItemAct"."mePendingMcredits", 0) as "mePendingMcredits", '
|| ' "Bookmark"."itemId" IS NOT NULL AS "meBookmark", '
|| ' "ThreadSubscription"."itemId" IS NOT NULL AS "meSubscription" '
|| 'FROM base "Item" '
|| 'JOIN users ON users.id = "Item"."userId" '
|| ' LEFT JOIN "Mute" ON "Mute"."muterId" = $3 AND "Mute"."mutedId" = "Item"."userId" '
|| ' LEFT JOIN "Bookmark" ON "Bookmark"."userId" = $3 AND "Bookmark"."itemId" = "Item".id '
|| ' LEFT JOIN "ThreadSubscription" ON "ThreadSubscription"."userId" = $3 AND "ThreadSubscription"."itemId" = "Item".id '
|| 'LEFT JOIN LATERAL ( '
|| ' SELECT "itemId", '
|| ' sum("ItemAct".msats) FILTER (WHERE "invoiceActionState" IS DISTINCT FROM ''FAILED'' AND "InvoiceForward".id IS NOT NULL AND (act = ''FEE'' OR act = ''TIP'')) AS "meMsats", '
|| ' sum("ItemAct".msats) FILTER (WHERE "invoiceActionState" IS DISTINCT FROM ''FAILED'' AND "InvoiceForward".id IS NULL AND (act = ''FEE'' OR act = ''TIP'')) AS "meMcredits", '
|| ' sum("ItemAct".msats) FILTER (WHERE "invoiceActionState" IS NOT DISTINCT FROM ''PENDING'' AND "InvoiceForward".id IS NOT NULL AND (act = ''FEE'' OR act = ''TIP'')) AS "mePendingMsats", '
|| ' sum("ItemAct".msats) FILTER (WHERE "invoiceActionState" IS NOT DISTINCT FROM ''PENDING'' AND "InvoiceForward".id IS NULL AND (act = ''FEE'' OR act = ''TIP'')) AS "mePendingMcredits", '
|| ' sum("ItemAct".msats) FILTER (WHERE "invoiceActionState" IS DISTINCT FROM ''FAILED'' AND act = ''DONT_LIKE_THIS'') AS "meDontLikeMsats" '
|| ' FROM "ItemAct" '
|| ' LEFT JOIN "Invoice" ON "Invoice".id = "ItemAct"."invoiceId" '
|| ' LEFT JOIN "InvoiceForward" ON "InvoiceForward"."invoiceId" = "Invoice"."id" '
|| ' WHERE "ItemAct"."userId" = $3 '
|| ' AND "ItemAct"."itemId" = "Item".id '
|| ' GROUP BY "ItemAct"."itemId" '
|| ') "ItemAct" ON true '
|| 'WHERE ("Item".level = 1 OR "Item".rn <= $6 - "Item".level + 2) ' || _where || ' '
USING _item_id, _global_seed, _me_id, _limit, _offset, _grandchild_limit, _level, _where, _order_by;
EXECUTE ''
|| 'SELECT COALESCE(jsonb_agg(sub), ''[]''::jsonb) AS comments '
|| 'FROM ( '
|| ' SELECT "Item".*, item_comments_zaprank_with_me("Item".id, $2, $3, $4, $5, $6, $7 - 1, $8, $9) AS comments '
|| ' FROM t_item "Item" '
|| ' WHERE "Item"."parentId" = $1 '
|| _order_by
|| ' ) sub'
INTO result USING _item_id, _global_seed, _me_id, _limit, _offset, _grandchild_limit, _level, _where, _order_by;
RETURN result;
END
$$;
-- add limit and offset
CREATE OR REPLACE FUNCTION item_comments_limited(
_item_id int, _limit int, _offset int, _grandchild_limit int,
_level int, _where text, _order_by text)
RETURNS jsonb
LANGUAGE plpgsql VOLATILE PARALLEL SAFE AS
$$
DECLARE
result jsonb;
BEGIN
IF _level < 1 THEN
RETURN '[]'::jsonb;
END IF;
EXECUTE 'CREATE TEMP TABLE IF NOT EXISTS t_item ON COMMIT DROP AS '
|| 'WITH RECURSIVE base AS ( '
|| ' (SELECT "Item".*, 1 as level, ROW_NUMBER() OVER () as rn '
|| ' FROM "Item" '
|| ' WHERE "Item"."parentId" = $1 '
|| _order_by || ' '
|| ' LIMIT $2 '
|| ' OFFSET $3) '
|| ' UNION ALL '
|| ' (SELECT "Item".*, b.level + 1, ROW_NUMBER() OVER (PARTITION BY "Item"."parentId" ' || _order_by || ') '
|| ' FROM "Item" '
|| ' JOIN base b ON "Item"."parentId" = b.id '
|| ' WHERE b.level < $5 AND (b.level = 1 OR b.rn <= $4)) '
|| ') '
|| 'SELECT "Item".*, "Item".created_at at time zone ''UTC'' AS "createdAt", "Item".updated_at at time zone ''UTC'' AS "updatedAt", '
|| ' "Item"."invoicePaidAt" at time zone ''UTC'' AS "invoicePaidAtUTC", '
|| ' to_jsonb(users.*) as user '
|| 'FROM base "Item" '
|| 'JOIN users ON users.id = "Item"."userId" '
|| 'WHERE ("Item".level = 1 OR "Item".rn <= $4) ' || _where
USING _item_id, _limit, _offset, _grandchild_limit, _level, _where, _order_by;
EXECUTE ''
|| 'SELECT COALESCE(jsonb_agg(sub), ''[]''::jsonb) AS comments '
|| 'FROM ( '
|| ' SELECT "Item".*, item_comments("Item".id, $2, $3, $4, $5 - 1, $6, $7) AS comments '
|| ' FROM t_item "Item" '
|| ' WHERE "Item"."parentId" = $1 '
|| _order_by
|| ' ) sub'
INTO result USING _item_id, _limit, _offset, _grandchild_limit, _level, _where, _order_by;
RETURN result;
END
$$;

1
prisma/schema.prisma
View File

@ -528,6 +528,7 @@ model Item {
lastCommentAt DateTime?
lastZapAt DateTime?
ncomments Int @default(0)
nDirectComments Int @default(0)
msats BigInt @default(0)
mcredits BigInt @default(0)
cost Int @default(0)