A closer look at the database handle passed as a first argument to the mappers
The database handler is a proxy for the DatabaseManager and incapsulates the standard CRUD database operations:
/**
* Database access interface. Use typeorm transactional entity manager to perform get/save/remove operations.
*/
export default interface DatabaseManager {
/**
* Save given entity instance, if entity is exists then just update
* @param entity
*/
save<T>(entity: DeepPartial<T>): Promise<void>;
/**
* Removes a given entity from the database.
* @param entity: DeepPartial<T>
*/
remove<T>(entity: DeepPartial<T>): Promise<void>;
/**
* Finds first entity that matches given options.
* @param entity: T
* @param options: FindOneOptions<T>
*/
get<T>(entity: { new (...args: any[]): T }, options: FindOneOptions<T>): Promise<T | undefined>;
/**
* Finds entities that match given options.
* @param entity: T
* @param options: FindOneOptions<T>
*/
getMany<T>(entity: { new (...args: any[]): T }, options: FindOneOptions<T>): Promise<T[]>;
}
