如何在 django 模板中使用 django model object 模板？

Question

I am not able to use the Django model object in Django templates. I want to iterate using the model user in the template and then play with the ActivityPeriod(model) of that user. Please check my code for the clarity:

Here is my code:

views.py

from .models import User,ActivityPeriod

def call_response(request):
    user = User.objects.all()
    return render(request, "Test/list.html", {"users":user ,"activityperiod":ActivityPeriod})

Test/list.html

{% for user in users %}
    'real_name': {{ user.real_name}}},
    'activity_periods': {% with activity=activityperiod.objects.get(id =user) %}
    {{ activity.start_time }}
    {% endwith %}
{% endfor %}

But i am getting an error: Could not parse the remainder: '(id' from 'activityperiod.objects.get(id'

What is the correct way? Can anyone please share it with me.

Answer 1

Django template don't understand the filter action of Model. This part shoud be in view.

activity=activityperiod.objects.get(id =user)

You should prepare your data and manipulate them before sending to template (a dictionary may help you). And remember that result of action "User.objects.all()" is a list.

Answer 2

Your question suggests that you think you can a function in the templates like a normal function (ie activityperiod.objects.get(...) ).

You can't, the templating system is not made like this (for security reasons amongst others).

You should do something like, in your models:

def call_response(request):
    # ! first() not "all()" (if > 1 user, you'll have problem)!
    user = User.objects.first()
    activityperiod = activityperiod.objects.get(user=user)
    return render(request, "Test/list.html",
                  {"users":user ,"activityperiod":activityperiod})

Answer 3

views.py

def call_response(request):

user = User.objects.filter(user=request.user)
activityperiod = activityperiod.objects.get(user=user)
context={'user':user,'activityperiod':activityperiod}
return render(request, "Test/list.html",context})

Test/list.html

'real_name': {{ user.real_name}}
'activity_periods':{{ activityperiod.start_time }}