Django passing parameters to views and templates - django

Question

I got a navigation tree that tells me where i am on my website to build that navigation tree i always need to pass all variables from template to the view as <input type="hidden">. Then i need to pass it from the view to the next template and it goes on and on feels like a bad solution to pass the variables from every template to every view. so my question is if there is a better solution to my problem here is a screen of the navigation tree.
template:
<form action="{% url 'aktentabelle' %}" method="post" style="display:inline-block">
{% csrf_token %}
<input type="hidden" name="mitglied" value="{{Container.containernr}}" />
<input type="hidden" name="contpk" value="{{Container.pk}}" />
<input type="hidden" name="projectnr" value="{{projectnr}}" />
<input type="hidden" name="status" value="{{Container.status}}" />
<input type="hidden" name="chargepk" value="{{chargepk}}" />
<input type="hidden" name="chargenr" value="{{chargenr}}" />
<input class="btn btn-primary" type="submit" value="anzeigen" />
</form>
so in my templates i always need to pass alot of variables as hidden and in my view i need to convert them back to read them:
views.py:
def aktentabelle(request):
assert isinstance(request, HttpRequest)
container = request.POST['mitglied']
z = AkteForm
projectnr = request.POST['projectnr']
chargepk = request.POST['chargepk']
chargenr = request.POST['chargenr']
contpk = request.POST['contpk']
closecontainerform = CloseContainerForm
akte_list = Akte.objects.filter(container__containernr=container)
Anzahl_Akten =Akte.objects.filter(container__containernr=container).count
status = request.POST['status']
return render(
request,
'app/aktentabelle.html',
{
'title':'About',
'akte_list':akte_list,
'anzahl':Anzahl_Akten,
'container':container,
'aktenform':z,
'status':status,
'closecontainerform': closecontainerform,
'date':datetime.now().date,
'contpk':contpk,
'chargepk':chargepk,
'chargenr':chargenr,
'projectnr':projectnr,
}
)
as you can see i use so many lines to just pass all the variables from one template to a view and back to the template again just to build that navigation tree.

Answer 1

One way to do this would be to use filters. Something like below.
from django.template import Library
register = Library()
def get_fields(requested_key):
my_dict={
'title':'About',
'akte_list':akte_list,
'anzahl':Anzahl_Akten,
'container':container,
'aktenform':z,
'status':status,
'closecontainerform': closecontainerform,
'date':datetime.now().date,
'contpk':contpk,
'chargepk':chargepk,
'chargenr':chargenr,
'projectnr':projectnr,
}
return mydict.get("requested_key","")
register.filter('get_fields', get_fields)
Store this in template tags directory with a filename and in your template load this at the top using
{% load filename %}.
Then you can do something like below in your template.
{% load templatefilename %}
<form action="{% url 'aktentabelle' %}" method="post" style="display:inline-block">
{% csrf_token %}
<input type="hidden" name="mitglied" value="{{get_fields|containernr}}"
</form>