Entity-Relationship Model¶ Useridemailhashed_passwordis_activeis_superuseris_verifiedforenamesurnameinvitation_key_idCarsidowner_idtypelicense_plate_numberFuel TypesidnameHistory Recordsidcar_idfuel_type_idtimestampmileageprice_per_litrelitresStationsidtankerkoenig_idnamebrandstreethouse_numberpost_codeplacelatitudelongitudedistancediesele5e10is_opencached_atcache_latcache_loncache_radiusInvitation KeysidkeyUnique constraints:- User.email- Car.license_plate_number- FuelType.name- Station.tankerkoenig_idused byownshashasUseridemailhashed_passwordis_activeis_superuseris_verifiedforenamesurnameinvitation_key_idCarsidowner_idtypelicense_plate_numberFuel TypesidnameHistory Recordsidcar_idfuel_type_idtimestampmileageprice_per_litrelitresStationsidtankerkoenig_idnamebrandstreethouse_numberpost_codeplacelatitudelongitudedistancediesele5e10is_opencached_atcache_latcache_loncache_radiusInvitation KeysidkeyUnique constraints:- User.email- Car.license_plate_number- FuelType.name- Station.tankerkoenig_idused byownshashas