domain-objects
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A simple, convenient way to represent domain objects, leverage domain knowledge, and add runtime validation in your code base.
43 lines • 2.43 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.getUpdatableProperties = void 0;
const error_fns_1 = require("@ehmpathy/error-fns");
const type_fns_1 = require("type-fns");
const assertDomainObjectIsSafeToManipulate_1 = require("../constraints/assertDomainObjectIsSafeToManipulate");
const DomainEntity_1 = require("../instantiation/DomainEntity");
const DomainObject_1 = require("../instantiation/DomainObject");
const DomainEntityUpdatablePropertiesMustBeDefinedError_1 = require("./DomainEntityUpdatablePropertiesMustBeDefinedError");
/**
* Extracts an object that contains only the updatable properties of the domain object, for DomainEntity
*
* Uses the definition of a DomainEntity in order to extract the properties that are updatable for the domain object generically
*
* note
* - this should not be called on DomainLiterals or DomainEvents, since by definition they can not have updatable properties
*/
const getUpdatableProperties = (dobj) => {
var _a;
// make sure its an instance of DomainObject
if (!(dobj instanceof DomainObject_1.DomainObject))
throw new Error('getUpdatableProperties called on object that is not an instance of a DomainObject. Are you sure you instantiated the object? (Related: see `DomainObject.nested`)');
// make sure that its safe to manipulate
(0, assertDomainObjectIsSafeToManipulate_1.assertDomainObjectIsSafeToManipulate)(dobj);
// handle DomainEntity
if (dobj instanceof DomainEntity_1.DomainEntity) {
const className = dobj.constructor.name;
const updatableProps = dobj.constructor.updatable;
if (!updatableProps)
throw new DomainEntityUpdatablePropertiesMustBeDefinedError_1.DomainEntityUpdatablePropertiesMustBeDefinedError({
entityName: className,
nameOfFunctionNeededFor: 'getUpdatableProperties',
});
return (0, type_fns_1.pick)(dobj, updatableProps.flat());
}
// throw error we get here, this is unexpected
throw new error_fns_1.UnexpectedCodePathError('unexpected domain object type for getUpdatableProperties. expected DomainEntity', {
dobjClass: (_a = dobj === null || dobj === void 0 ? void 0 : dobj.constructor) === null || _a === void 0 ? void 0 : _a.name,
dobj,
});
};
exports.getUpdatableProperties = getUpdatableProperties;
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