No value returned in django powered HTML - django

Question

Looked for the solution for almost 2 days without luck - any guidance is much appreciated.
Given 'views.py' looks like this (all needed lib are imported properly):
from django.shortcuts import render, get_object_or_404
from django.http import HttpResponse, HttpResponseRedirect
from django.urls import reverse
from django.template.context_processors import request
from django.views import generic
class HomeView(generic.TemplateView):
template_name = 'polls/djIndex.html'
def test(request):
data = {'temperature': '53F', 'state': 'NY', 'mood': ['good', 'bad']}
return render(request, 'polls/djIndex.html',{'data':data})
These are not working (no value returned) on djIndex.html:
test #1:
{% for key, value in data.items %}
<h3>{{key}}-----: {{value}}</h3>
{% endfor %}
test #2:
{% for key in data.items %}
<p>Value of Key 1 : data["temperature"]</p>
{% endfor %}
test #3
{% for key, value in data %}
<p>Key {{ key }}, Value {{ value }}</p>
{% endfor %}
test #4
<h2> context2: {{data.temperature}}</h2>
But these are working on djIndex.html:
<h2> Temperature: {{temperature}}</h2>
<h2> State: {{state}}</h2>
<h2> Mood: {{mood}}</h2>
Ask: How to make those non-working test #1-#4 to work on my HTML page. Especially test #3 and #4. Am I doing something wrong in my Django config, as some of those test #1-#4 are accepted answers in some forums in different instances?

Answer 1

To pass some context to the template from a class-based TemplateView you can override its get_contecxt_data()
Give this a try
class HomeView(generic.TemplateView):
template_name = 'polls/djIndex.html'
def get_context_data(self, **kwargs):
context = super(HomeView, self).get_context_data(**kwargs)
context['temperature'] = '53F'
context['state'] = 'NY'
return context
Why didn't it work before
TemplatView or any other class-based views don't have a test() method to handle requests, so your test method wouldn't get called upon a request.