Precondition for writing events to ensure the subject already has at least one event
Useful when you want to update or modify an existing subject.
Summary
Types
@type t() :: %EventSourcingDB.IsSubjectPopulated{subject: String.t()}
Precondition for writing events to ensure the subject already has at least one event
Useful when you want to update or modify an existing subject.
@type t() :: %EventSourcingDB.IsSubjectPopulated{subject: String.t()}