I'm making some sort of galactic map with the following classes
defined in models.py:
class Star(models.Model):
name = models.CharField(max_length=200)
xcoord = models.FloatField()
ycoord = models.FloatField()
zcoord = models.FloatField()
def __unicode__(self):
return self.name + ' (' + str(self.xcoord) + ', ' + str
(self.ycoord) + ', ' + str(self.zcoord) + ')'
class Satellite(models.Model):
name = models.CharField(max_length=200)
description = models.TextField(blank=True, null=True)
system = models.ForeignKey(System, related_name='satellites')
def __unicode__(self):
return self.name
class Planet(Satellite):
orbital = models.IntegerField()
class Moon(Satellite):
suborbital = models.IntegerField()
orbits = models.ForeignKey(Planet, related_name='moons')
What should I do so I can refer to an s.planets object containing all
objects of class Planet with system==s?
it seems like Star should have added
def _get_planets(self):
return self.planets
def _set_planets(self, planet):
self.planets.append(planet)
planets = property(_get_planets, _set_planets)
and Planet should have something like
def __init__(self, *args, **kwargs):
super(Planet, self).__init__(*args, **kwargs)
self.star.planets.append(self)
def save(self):
super(Planet, self).save()
Does this look accurate?
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