Get Foreign Key Value
django, foreign-keys
Solution
You need the actual IDs? Try something like `my_vehicle_ref.series.id`.
Also, I hope you know that the `series` attribute right there is really an instance of `Series`, so you could access any of it's properties, e.g., `my_vehicle_ref.series.model.model`.
Problem
How can I get the foreign key values? I have a common vehicle model that links to the year, series, engine type, body style, transmission and drive train...all as foreign keys. I'd like to get the values of these fields for my app, but I'm stuck as to how I'd go about them. Any ideas will be highly appreciated. ``` class Model(models.Model): model = models.CharField(max_length=15, blank=False) manufacturer = models.ForeignKey(Manufacturer) date_added = models.DateField() def __unicode__(self): name = ''+str(self.manufacturer)+" "+str(self.model) return name class Year(models.Model): ALPHA_NUMERIC_CHOICES = ( ('1', 'Numeric'), ('A', 'Alphabetic'), ) year = models.PositiveSmallIntegerField() position_7_char = models.CharField(max_length=1, choices=ALPHA_NUMERIC_CHOICES) position_10 = models.CharField(max_length=1, blank=False) def __unicode__(self): return unicode(self.year) class Series(models.Model): series = models.CharField(max_length=20, blank=True) model = models.ForeignKey(Model) date_added = models.DateField() def __unicode__(self): name = str(self.model)+" "+str(self.series) return name class CommonVehicle(models.Model): year = models.ForeignKey(Year) series = models.ForeignKey(Series) engine = models.ForeignKey(Engine) body_style = models.ForeignKey(BodyStyle) transmission = models.ForeignKey(Transmission) drive_train = models.ForeignKey(DriveTrain) def __unicode__(self): name = ''+str(self.year)+" "+str(self.series) return name class Vehicle(models.Model): stock_number = models.CharField(max_length=6, blank=False) vin = models.CharField(max_length=17, blank=False) common_vehicle = models.ForeignKey(CommonVehicle) exterior_colour = models.ForeignKey(ExteriorColour) interior_colour = models.ForeignKey(InteriorColour) interior_type = models.ForeignKey(InteriorType) odometer_unit = models.ForeignKey(OdometerUnit) status = models.ForeignKey(Status) odometer_reading = models.PositiveIntegerField() selling_price = models.PositiveIntegerField() purchase_date = models.DateField() sales_description = models.CharField(max_length=60, blank=False) def __unicode__(self): return self.stock_numberodels.ForeignKey(CommonVehicle) ```