mirror of https://github.com/Chocobozzz/PeerTube
119 lines
3.4 KiB
TypeScript
119 lines
3.4 KiB
TypeScript
import { Sequelize } from 'sequelize-typescript'
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type SortType = { sortModel: any, sortValue: string }
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// Translate for example "-name" to [ [ 'name', 'DESC' ], [ 'id', 'ASC' ] ]
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function getSort (value: string, lastSort: string[] = [ 'id', 'ASC' ]) {
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let { direction, field } = buildDirectionAndField(value)
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if (field.toLowerCase() === 'match') { // Search
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field = Sequelize.col('similarity')
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}
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return [ [ field, direction ], lastSort ]
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}
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function getVideoSort (value: string, lastSort: string[] = [ 'id', 'ASC' ]) {
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let { direction, field } = buildDirectionAndField(value)
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// Alias
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if (field.toLowerCase() === 'match') { // Search
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field = Sequelize.col('similarity')
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} else if (field.toLowerCase() === 'trending') { // Sort by aggregation
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return [
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[ Sequelize.fn('COALESCE', Sequelize.fn('SUM', Sequelize.col('VideoViews.views')), '0'), direction ],
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[ Sequelize.col('VideoModel.views'), direction ],
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lastSort
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]
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}
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return [ [ field, direction ], lastSort ]
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}
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function getSortOnModel (model: any, value: string, lastSort: string[] = [ 'id', 'ASC' ]) {
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let [ firstSort ] = getSort(value)
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if (model) return [ [ model, firstSort[0], firstSort[1] ], lastSort ]
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return [ firstSort, lastSort ]
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}
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function throwIfNotValid (value: any, validator: (value: any) => boolean, fieldName = 'value') {
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if (validator(value) === false) {
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throw new Error(`"${value}" is not a valid ${fieldName}.`)
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}
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}
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function buildTrigramSearchIndex (indexName: string, attribute: string) {
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return {
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name: indexName,
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fields: [ Sequelize.literal('lower(immutable_unaccent(' + attribute + '))') as any ],
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using: 'gin',
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operator: 'gin_trgm_ops'
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}
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}
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function createSimilarityAttribute (col: string, value: string) {
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return Sequelize.fn(
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'similarity',
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searchTrigramNormalizeCol(col),
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searchTrigramNormalizeValue(value)
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)
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}
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function buildBlockedAccountSQL (serverAccountId: number, userAccountId?: number) {
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const blockerIds = [ serverAccountId ]
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if (userAccountId) blockerIds.push(userAccountId)
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const blockerIdsString = blockerIds.join(', ')
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const query = 'SELECT "targetAccountId" AS "id" FROM "accountBlocklist" WHERE "accountId" IN (' + blockerIdsString + ')' +
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' UNION ALL ' +
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'SELECT "account"."id" AS "id" FROM account INNER JOIN "actor" ON account."actorId" = actor.id ' +
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'INNER JOIN "serverBlocklist" ON "actor"."serverId" = "serverBlocklist"."targetServerId" ' +
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'WHERE "serverBlocklist"."accountId" IN (' + blockerIdsString + ')'
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return query
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}
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// ---------------------------------------------------------------------------
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export {
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buildBlockedAccountSQL,
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SortType,
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getSort,
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getVideoSort,
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getSortOnModel,
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createSimilarityAttribute,
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throwIfNotValid,
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buildTrigramSearchIndex
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}
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// ---------------------------------------------------------------------------
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function searchTrigramNormalizeValue (value: string) {
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return Sequelize.fn('lower', Sequelize.fn('immutable_unaccent', value))
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}
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function searchTrigramNormalizeCol (col: string) {
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return Sequelize.fn('lower', Sequelize.fn('immutable_unaccent', Sequelize.col(col)))
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}
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function buildDirectionAndField (value: string) {
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let field: any
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let direction: 'ASC' | 'DESC'
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if (value.substring(0, 1) === '-') {
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direction = 'DESC'
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field = value.substring(1)
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} else {
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direction = 'ASC'
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field = value
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}
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return { direction, field }
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}
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