@webiny/api-headless-cms-ddb/operations/entry/dataLoader/getRevisionById.js

DynamoDB storage operations plugin for Headless CMS API.

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.createGetRevisionById = void 0;
var _dataloader = _interopRequireDefault(require("dataloader"));
var _dbDynamodb = require("@webiny/db-dynamodb");
var _cleanup = require("@webiny/db-dynamodb/utils/cleanup");
var _keys = require("../keys");
var _utils = require("@webiny/utils");
var _createBatchScheduleFn = require("./createBatchScheduleFn");
const createGetRevisionById = params => {
  const {
    entity,
    locale,
    tenant
  } = params;
  return new _dataloader.default(async ids => {
    const queries = ids.reduce((collection, id) => {
      const partitionKey = (0, _keys.createPartitionKey)({
        tenant,
        locale,
        id
      });
      const {
        version
      } = (0, _utils.parseIdentifier)(id);
      if (version === null) {
        return collection;
      }
      const sortKey = (0, _keys.createRevisionSortKey)({
        version
      });
      const keys = `${partitionKey}__${sortKey}`;
      if (collection[keys]) {
        return collection;
      }
      collection[keys] = entity.getBatch({
        PK: partitionKey,
        SK: sortKey
      });
      return collection;
    }, {});
    const records = await (0, _dbDynamodb.batchReadAll)({
      table: entity.table,
      items: Object.values(queries)
    });
    const items = (0, _cleanup.cleanupItems)(entity, records);
    return ids.map(id => {
      return items.filter(item => {
        return id === item.id;
      });
    });
  }, {
    batchScheduleFn: (0, _createBatchScheduleFn.createBatchScheduleFn)()
  });
};
exports.createGetRevisionById = createGetRevisionById;

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