@webundsoehne/nestjs-graphql-typeorm-dataloader/dist/loaders/self-key.loader.js

A library to utilize the graphql-dataloader with nestjs and typeorm.

var __create = Object.create;
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __getProtoOf = Object.getPrototypeOf;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __name = (target, value) => __defProp(target, "name", { value, configurable: true });
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toESM = (mod, isNodeMode, target) => (target = mod != null ? __create(__getProtoOf(mod)) : {}, __copyProps(
  isNodeMode || !mod || !mod.__esModule ? __defProp(target, "default", { value: mod, enumerable: true }) : target,
  mod
));
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
var self_key_loader_exports = {};
__export(self_key_loader_exports, {
  SelfKeyDataloader: () => SelfKeyDataloader
});
module.exports = __toCommonJS(self_key_loader_exports);
var import_dataloader = __toESM(require("dataloader"));
var import_lodash = require("lodash");
class SelfKeyDataloader extends import_dataloader.default {
  constructor(relation, connection, selfKeyFunc) {
    super(async (ids) => {
      const columns = relation.inverseRelation?.joinColumns;
      if (!columns || columns.length === 0) {
        throw new Error(`No relational columns has been found for: ${relation.propertyName}`);
      }
      let query = connection.createQueryBuilder(relation.type, relation.propertyName);
      await Promise.all(columns.map((column) => {
        const key = `${relation.propertyName}_${column.propertyName}`;
        query = query.andWhere(`${relation.propertyName}.${column.propertyPath} IN (:...${key})`, {
          [key]: ids
        });
      }));
      const entities = (0, import_lodash.groupBy)(await query.getMany(), selfKeyFunc);
      return ids.map((id) => entities[id] ?? []);
    });
  }
}
__name(SelfKeyDataloader, "SelfKeyDataloader");
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
  SelfKeyDataloader
});