refactoring: let Django QuerySet produce the inner tuples for us
refactoring: let Django QuerySet produce the inner tuples for us

geometalab/osmaxx,geometalab/osmaxx-frontend,geometalab/osmaxx-frontend,geometalab/osmaxx-frontend,geometalab/osmaxx,geometalab/osmaxx,geometalab/osmaxx,geometalab/osmaxx-frontend