Accessing variable context name in template - django

Question

I'm just discovering Django and i'm still a total noob.
I got a view that return multiple query set.
class RouteDateView(ListView):
model = Tblsummary
template_name = 'reviewrouteassess/selectdaterange.html'
def get_context_data(self, *args, **kwargs):
context = super(RouteDateView, self).get_context_data(*args, **kwargs)
context['allroute'] = Tblsummary.objects.filter(off_no=self.request.GET.get('depotcode')[:4])
for p in context['allroute']:
context[p.res_route] = Tblsummary.objects.filter(res_route=p.res_route)
return context
Then in my template I would like to access those dynamically name context. That's where i'm stuck.
<table>
{% for a in allroute %}
<tr>
<td>{{ a.res_route }}</td>
<td>{{ a.hcalls }}</td>
</tr>
{% for d in a.res_route %}
<tr>
<td>{{ d.res_route }}</td>
<td>{{ d.hcalls }}</td>
</tr>
{% endfor %}
{% endfor %}
How can I evaluate a.res_route so that a.res_route return the context passed by the view?? Thanks you so much!!
{% for d in a.res_route %}

Answer 1

I would suggest adding a method to your model to access the second query:
class Tblsummary(models.Model):
... # or whatever is there currently
def sub_routes(self): # name this how you'd like
return Tblsummary.objects.filter(res_route=self.res_route)
And then in your template:
<table>
{% for a in allroute %}
<tr>
<td>{{ a.res_route }}</td>
<td>{{ a.hcalls }}</td>
</tr>
{% for d in a.sub_routes %}
<tr>
<td>{{ d.res_route }}</td>
<td>{{ d.hcalls }}</td>
</tr>
{% endfor %}
{% endfor %}
This isn't going to be ideal from an efficiency standpoint since the sub_routes query is called once per entry in allroute but right now allroute is limited to 4 results so that shouldn't be an issue in practice.