isValidAssignment method
Determines whether all participant roles in assignment
are part of the
participantRoles in this protocol.
Implementation
bool isValidAssignment(AssignedTo assignment) {
if (assignment.isAssignedToAll) return true; // assigned to all
for (var name in assignment.roleNames!) {
for (var role in participantRoles!) {
if (role.role == name) return true;
}
}
return false;
}