01b021a337
* 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
25 lines
779 B
JavaScript
25 lines
779 B
JavaScript
export const LIMIT = 21
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export function decodeCursor (cursor) {
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if (!cursor) {
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return { offset: 0, time: new Date() }
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} else {
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const res = JSON.parse(Buffer.from(cursor, 'base64'))
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res.offset = Number(res.offset)
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res.time = new Date(res.time)
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return res
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}
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}
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export function nextCursorEncoded (cursor, limit = LIMIT) {
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cursor.offset += limit
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return Buffer.from(JSON.stringify(cursor)).toString('base64')
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}
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export function nextNoteCursorEncoded (cursor, notifications = [], limit = LIMIT) {
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// what we are looking for this oldest sort time for every table we are looking at
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cursor.time = new Date(notifications.slice(-1).pop()?.sortTime ?? cursor.time)
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cursor.offset += limit
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return Buffer.from(JSON.stringify(cursor)).toString('base64')
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}
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