46 lines
1.1 KiB
JavaScript
46 lines
1.1 KiB
JavaScript
// @flow
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import fractionalIndex from "fractional-index";
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import { Collection } from "../models";
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import { sequelize, Op } from "../sequelize";
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/**
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*
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* @param teamId The team id whose collections has to be fetched
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* @param index the index for which collision has to be checked
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* @returns An index, if there is collision returns a new index otherwise the same index
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*/
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export default async function removeIndexCollision(
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teamId: string,
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index: string
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) {
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const collection = await Collection.findOne({
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where: { teamId, deletedAt: null, index },
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});
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if (!collection) {
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return index;
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}
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const nextCollection = await Collection.findAll({
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where: {
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teamId,
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deletedAt: null,
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index: {
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[Op.gt]: index,
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},
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},
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attributes: ["id", "index"],
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limit: 1,
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order: [
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sequelize.literal('"collection"."index" collate "C"'),
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["updatedAt", "DESC"],
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],
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});
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const nextCollectionIndex = nextCollection.length
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? nextCollection[0].index
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: null;
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return fractionalIndex(index, nextCollectionIndex);
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}
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