Recovers a given entity in the database.
Optional
options: SaveOptionsReloads entity data from the database.
Removes current entity from the database.
Optional
options: RemoveOptionsSaves current entity in the database. If entity does not exist in the database then inserts, otherwise updates.
Optional
options: SaveOptionsRecords the delete date of current entity.
Optional
options: SaveOptions
Checks if entity has an id. If entity composite compose ids, it will check them all.