Display ForeignKey attributes in template - django

Question

I have the following models:
# models.py
class Site(models.Model):
name = models.CharField(max_length=75)
slug = models.SlugField(_('slug'), max_length=75, blank=True, null=True)
link = models.CharField(max_length=150)
created_on = models.DateTimeField(auto_now_add=True, editable=False)
modified_on = models.DateTimeField(auto_now=True)
class SiteRatings(models.Model):
site = models.ForeignKey('Site', related_name='siterating', blank=True, null=True)
overall_rating = models.FloatField(blank=True, null=True)
plans_rating = models.FloatField(blank=True, null=True)
prices_rating = models.FloatField(blank=True, null=True)
design_rating = models.FloatField(blank=True, null=True)
support_rating = models.FloatField(blank=True, null=True)
def save(self, *args, **kwargs):
self.overall_rating = (self.plans_rating + self.prices_rating + self.design_rating + self.support_rating)/4
super(SiteRatings, self).save(*args, **kwargs)
def __str__(self):
return self.site.name
My views
# views.py
def home(request):
print(user_language)
site_list = Site.objects.order_by('-date_launched')
return render_to_response('index.html', {'site_list': site_list}, RequestContext(request))
In template
# template
{% for site in site_list %}
<h4><span class="label label-info">{{ site.name }}</span></h4>
<h4><span class="label label-info">{{ site.siterating.overall_rating }}</span></h4>
{% endfor % }
The problem is that when I try to access {{ site.siterating.overall_rating }} nothing is being returned, I tried to change for {{ site.siterating.0.overall_rating }} and it is not displaying yet.

Answer 1

I solved my problem. First in models I created a method to get the site rating (thank you karthikr for your suggestion):
#models
class Site(models.Model):
name = models.CharField(max_length=75)
slug = models.SlugField(_('slug'), max_length=75, blank=True, null=True)
link = models.CharField(max_length=150)
created_on = models.DateTimeField(auto_now_add=True, editable=False)
modified_on = models.DateTimeField(auto_now=True)
def get_site_rating(self):
return self.siterating.filter(site = self)
After, I went to my template and used the class method that I had created:
{% for site in site_list %}
<h4><span class="label label-info">{{ site.name }}</span></h4>
<h4><span class="label label-info">{{ site.get_site_rating.0.overall_rating }}</span></h4>
{% endfor % }
Please, note that I used ...get_site_rating.0... just because in my case I have just 1 rating/site.