childEntitySelector

childEntitySelector is a function which creates a predefined relationship selector factory. Its goal is to simply the process of creating relationship selectors with childEntity.

declare function childEntitySelector(
  entityStateSelector,
  keyId,
  keyValue,
);

Its parameters are the same as childEntity has, but without relationships.

const address = rootEntitySelector(
  selectAddressState,
);
const addressCompany = childEntitySelector(
  selectCompanyState,
  'addressId',
  'company',
);

// later.
const address1 = address(
  addressCompany(),
);

// the same as.
const address2 = rootEntity(
  selectAddressState,
  childEntity(
    selectCompanyState,
    'addressId',
    'company',
  ),
);