typeorm
Version:
Data-Mapper ORM for TypeScript and ES2021+. Supports MySQL/MariaDB, PostgreSQL, MS SQL Server, Oracle, SAP HANA, SQLite, MongoDB databases.
89 lines (87 loc) • 3.96 kB
JavaScript
import { CustomRepositoryDoesNotHaveEntityError } from "../error/CustomRepositoryDoesNotHaveEntityError";
import { getMetadataArgsStorage } from "../globals";
import { CustomRepositoryNotFoundError } from "../error/CustomRepositoryNotFoundError";
/**
* Provides abstract class for custom repositories that do not inherit from original orm Repository.
* Contains all most-necessary methods to simplify code in the custom repository.
* All methods are protected thus not exposed and it allows to create encapsulated custom repository.
*
* @deprecated use Repository.extend function to create a custom repository
*/
export class AbstractRepository {
// -------------------------------------------------------------------------
// Protected Accessors
// -------------------------------------------------------------------------
/**
* Gets the original ORM repository for the entity that is managed by this repository.
* If current repository does not manage any entity, then exception will be thrown.
*/
get repository() {
const target = this.getCustomRepositoryTarget(this);
if (!target)
throw new CustomRepositoryDoesNotHaveEntityError(this.constructor);
return this.manager.getRepository(target);
}
/**
* Gets the original ORM tree repository for the entity that is managed by this repository.
* If current repository does not manage any entity, then exception will be thrown.
*/
get treeRepository() {
const target = this.getCustomRepositoryTarget(this);
if (!target)
throw new CustomRepositoryDoesNotHaveEntityError(this.constructor);
return this.manager.getTreeRepository(target);
}
// -------------------------------------------------------------------------
// Protected Methods
// -------------------------------------------------------------------------
/**
* Creates a new query builder for the repository's entity that can be used to build a SQL query.
* If current repository does not manage any entity, then exception will be thrown.
*/
createQueryBuilder(alias) {
const target = this.getCustomRepositoryTarget(this.constructor);
if (!target)
throw new CustomRepositoryDoesNotHaveEntityError(this.constructor);
return this.manager
.getRepository(target)
.createQueryBuilder(alias);
}
/**
* Creates a new query builder for the given entity that can be used to build a SQL query.
*/
createQueryBuilderFor(entity, alias) {
return this.getRepositoryFor(entity).createQueryBuilder(alias);
}
/**
* Gets the original ORM repository for the given entity class.
*/
getRepositoryFor(entity) {
return this.manager.getRepository(entity);
}
/**
* Gets the original ORM tree repository for the given entity class.
*/
getTreeRepositoryFor(entity) {
return this.manager.getTreeRepository(entity);
}
// -------------------------------------------------------------------------
// Private Methods
// -------------------------------------------------------------------------
/**
* Gets custom repository's managed entity.
* If given custom repository does not manage any entity then undefined will be returned.
*/
getCustomRepositoryTarget(customRepository) {
const entityRepositoryMetadataArgs = getMetadataArgsStorage().entityRepositories.find((repository) => {
return (repository.target ===
(typeof customRepository === "function"
? customRepository
: customRepository.constructor));
});
if (!entityRepositoryMetadataArgs)
throw new CustomRepositoryNotFoundError(customRepository);
return entityRepositoryMetadataArgs.entity;
}
}
//# sourceMappingURL=AbstractRepository.js.map