rebuild the exchanges_by_date_and_context and exchanges_by_type manager methods to achieve desired filtering, optimize the structure to avoid multiple calls to the same big-slow queries by passing exchanges as an argument (much faster)
rebuild the exchanges_by_date_and_context and exchanges_by_type manager methods to achieve desired filtering, optimize the structure to avoid multiple calls to the same big-slow queries by passing exchanges as an argument (much faster)

FreedomCoop/valuenetwork,FreedomCoop/valuenetwork,FreedomCoop/valuenetwork,FreedomCoop/valuenetwork