enable to fetch replies recursively
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2fe64c1150
commit
aca724e0bf
2 changed files with 70 additions and 13 deletions
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@ -0,0 +1,52 @@
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export class noteRepliesFunction1658656633972 {
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name = 'noteRepliesFunction1658656633972'
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async up(queryRunner) {
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await queryRunner.query(`
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CREATE OR REPLACE FUNCTION note_replies(start_id varchar, max_depth integer, max_breadth integer) RETURNS TABLE (id VARCHAR) AS
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$$
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SELECT DISTINCT id FROM (
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WITH RECURSIVE tree (id, ancestors, depth) AS (
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SELECT start_id, '{}'::VARCHAR[], 0
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UNION
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SELECT
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note.id,
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CASE
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WHEN note."replyId" = tree.id THEN tree.ancestors || note."replyId"
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ELSE tree.ancestors || note."renoteId"
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END,
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depth + 1
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FROM note, tree
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WHERE (
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note."replyId" = tree.id
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OR
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(
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-- get renotes but not pure renotes
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note."renoteId" = tree.id
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AND
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(
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note.text IS NOT NULL
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OR
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CARDINALITY(note."fileIds") != 0
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OR
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note."hasPoll" = TRUE
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)
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)
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) AND depth < max_depth
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)
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SELECT
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id,
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-- apply the limit per node
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row_number() OVER (PARTITION BY ancestors[array_upper(ancestors, 1)]) AS nth_child
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FROM tree
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WHERE depth > 0
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) AS recursive WHERE nth_child < max_breadth
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$$
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LANGUAGE SQL
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`);
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}
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async down(queryRunner) {
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await queryRunner.query(`DROP FUNCTION note_replies`);
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}
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}
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@ -11,6 +11,8 @@ export const meta = {
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requireCredential: false,
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description: 'Get a list of children of a notes. Children includes replies as well as quote renotes that quote the respective post. A post will not be duplicated if it is a reply and a quote of a note in this thread. For depths larger than 1 the threading has to be computed by the client.',
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res: {
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type: 'array',
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optional: false, nullable: false,
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@ -26,7 +28,20 @@ export const paramDef = {
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type: 'object',
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properties: {
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noteId: { type: 'string', format: 'misskey:id' },
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limit: { type: 'integer', minimum: 1, maximum: 100, default: 10 },
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limit: {
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description: 'The maximum number of replies/quotes to show per parent note, i.e. the maximum number of children each note may have.',
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type: 'integer',
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minimum: 1,
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maximum: 100,
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default: 10,
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},
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depth: {
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description: 'The number of layers of replies to fetch at once. Defaults to 1 for backward compatibility.',
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type: 'integer',
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minimum: 1,
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maximum: 100,
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default: 1,
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},
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sinceId: { type: 'string', format: 'misskey:id' },
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untilId: { type: 'string', format: 'misskey:id' },
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},
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@ -36,17 +51,7 @@ export const paramDef = {
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// eslint-disable-next-line import/no-default-export
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export default define(meta, paramDef, async (ps, user) => {
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const query = makePaginationQuery(Notes.createQueryBuilder('note'), ps.sinceId, ps.untilId)
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.andWhere(new Brackets(qb => { qb
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.where('note.replyId = :noteId', { noteId: ps.noteId })
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.orWhere(new Brackets(qb => { qb
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.where('note.renoteId = :noteId', { noteId: ps.noteId })
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.andWhere(new Brackets(qb => { qb
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.where('note.text IS NOT NULL')
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.orWhere('note.fileIds != \'{}\'')
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.orWhere('note.hasPoll = TRUE');
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}));
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}));
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}))
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.andWhere('note.id IN (SELECT id FROM note_replies(:noteId, :depth, :limit))', { noteId: ps.noteId, depth: ps.depth, limit: ps.limit })
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.innerJoinAndSelect('note.user', 'user')
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.leftJoinAndSelect('user.avatar', 'avatar')
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.leftJoinAndSelect('user.banner', 'banner')
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@ -65,7 +70,7 @@ export default define(meta, paramDef, async (ps, user) => {
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generateBlockedUserQuery(query, user);
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}
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const notes = await query.take(ps.limit).getMany();
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const notes = await query.getMany();
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return await Notes.packMany(notes, user);
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});
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