Module Os_db.Phone
Manage user phone numbers
val add : int64 -> string -> bool Lwt.tadd userid number associates number with the user userid. Returns true on success.
val exists : string -> bool Lwt.tDoes the number exist in the database?
val userid : string -> Os_types.User.id option Lwt.tThe user corresponding to a phone number (if any).
val delete : int64 -> string -> unit Lwt.tdelete userid number deletes number, which has to be associated to userid.
val get_list : int64 -> string list Lwt.tget_list userid returns the list of number associated to the user.