Function buildPopulateWhere

packages/sql/src/AbstractSqlDriver.ts:3095–3133

(
    meta: EntityMetadata<T>,
    joinedProps: PopulateOptions<T>[],
    options: Pick<FindOptions<any>, 'populateWhere'>,
  )

  }

  protected buildPopulateWhere<T extends object>(
    meta: EntityMetadata<T>,
    joinedProps: PopulateOptions<T>[],
    options: Pick<FindOptions<any>, 'populateWhere'>,
  ): ObjectQuery<T> {
    const where = {} as ObjectQuery<T>;

    for (const hint of joinedProps) {
      const [propName] = hint.field.split(':', 2) as [EntityKey<T>];
      const prop = meta.properties[propName];

      if (!Utils.isEmpty(prop.where) || RawQueryFragment.hasObjectFragments(prop.where)) {
        where[prop.name] = Utils.copy(prop.where);
      }

      if (hint.children) {
        const targetMeta = prop.targetMeta;
        if (targetMeta) {
          const inner = this.buildPopulateWhere(targetMeta, hint.children as any, {});

          if (!Utils.isEmpty(inner) || RawQueryFragment.hasObjectFragments(inner)) {
            where[prop.name] ??= {} as any;
            Object.assign(where[prop.name] as object, inner);
          }
        }
      }
    }

    if (Utils.isEmpty(options.populateWhere) && !RawQueryFragment.hasObjectFragments(options.populateWhere)) {
      return where;
    }

    if (Utils.isEmpty(where) && !RawQueryFragment.hasObjectFragments(where)) {
      return options.populateWhere as ObjectQuery<T>;
    }

    /* v8 ignore next */
    return { $and: [options.populateWhere, where] } as unknown as ObjectQuery<T>;
  }

  /**
   * Builds a UNION ALL (or UNION) subquery from `unionWhere` branches and merges it