Where things live

An entity's file holds only its data definition: its store, fields, unique rules, indexes, lifecycle, policy and record cache. Every entity gets generated operations: Todo.get, create, update and delete.

Everything else has a folder of its own in the domain, one declaration per file: every query you write in queries/, every action in actions/ and every failure in failures/.

// domains/planning/failures/todo_not_found.jadpotype TodoNotFound = Failure {    kind: FailureKind.not_found    message: "Todo not found."}// domains/planning/actions/complete_todo.jadpoaction complete_todo(todo_id: Todo.id) fails TodoNotFound -> Todo {    var todo: Todo = attempt Todo.get(todo_id)    ...}

Todo.get(todo_id) above is one of the generated operations. A written action is called by its name, complete_todo(todo_id), or planning.complete_todo(todo_id) from another domain when it is public.

There is no self. A parameter todo: Todo is a snapshot of the record, and todo_id: Todo.id is a reference to it.