Django - Render is not working in my project - django

Question

I am dealing with form like 1 week but couldn't solve my issue. Probably i overlook something that can be found easy by other eyes, but totally, i don't know what to do. I recognize problem by starting build form. I had to use render for form and it failed in every try. I am able to connect db and showing data in html pages but whenever i use render instead of render_to_response it is failing. And i had to use render for post request as i know. Not only for form, render is not working for all. Even for a simple: def home(request): context = {'foo': 'bar'} return render(request, 'main.html', context)
models.py
class ModuleNames(models.Model):
ModuleName = models.CharField(max_length = 50)
ModuleDesc = models.CharField(max_length = 256)
ModuleSort = models.SmallIntegerField()
isActive = models.BooleanField()
ModuleType = models.ForeignKey(ModuleTypes, on_delete=models.CASCADE, null = True)
slug = models.SlugField(('ModuleName'), max_length=50, blank=True)
class Meta:
app_label = 'zz'
def __unicode__(self):
return self.status
forms.py
from django import forms
from MyApp.models import ModuleNames
class ModuleForm(forms.ModelForm):
moduleName = forms.CharField(label='Module Name', max_length=50)
ModuleDesc = forms.CharField(max_length = 256)
ModuleSort = forms.IntegerField()
isActive = forms.BooleanField()
ModuleType = forms.IntegerField()
class Meta:
model = ModuleNames
fields =('moduleName','ModuleDesc','ModuleSort','isActive','ModuleType')
view.py
from django.views.generic import TemplateView
from django.shortcuts import render,render_to_response, redirect
from django.template import RequestContext
import json
from django.core.serializers.json import Serializer
from django.http import HttpResponse, Http404, HttpResponseRedirect
from urllib.parse import urlparse
from django.urls import resolve
from django.db import connection
from collections import namedtuple
from django.db.models import F
from django.views.decorators.cache import cache_page
from django.views.decorators.csrf import csrf_protect
from MyApp.models import ModuleNames
from MyApp.forms import ModuleForm
def AddNewModule(request):
template_name = 'addnewmodule.html'
if request.method == 'GET':
form = ModuleForm()
posts = ModuleNames.objects.all()
args = {'form': form, 'posts': posts }
return render(request, template_name, args) #This part is showing data when i use render_to_response. But after clicking Save button on html page, it will give below first error.
if request.method == 'POST':
form = ModuleForm(request.POST)
if form.is_valid():
form.pop('csrfmiddlewaretoken', None)
post = form.save(commit=False)
post.save()
text = form.cleaned_data['post']
form = ModuleForm()
args = {'form': form, 'text': text}
return render(request, template_name, args)
Error that i have when using render_to_response
Forbidden (403)
CSRF verification failed. Request aborted.
Help
Reason given for failure:
CSRF token missing or incorrect.
Error when i use render for any function
Environment:
Request Method: GET
Request URL: http://127.0.0.1:8000/addnewmodule
Django Version: 2.1.3
Python Version: 3.7.1
Installed Applications:
['MyApp',
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware']
Traceback:
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/core/handlers/exception.py" in inner
34.response = get_response(request)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/core/handlers/base.py" in _get_response
126.response = self.process_exception_by_middleware(e, request)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/core/handlers/base.py" in _get_response
124.response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/Users/Cem/Documents/Projects/Python/Web/FirstApp/MyApp/views.py" in addnewmodule
132.return render(request, template_name, args)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/shortcuts.py" in render
36.content = loader.render_to_string(template_name, context, request, using=using)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/template/loader.py" in render_to_string
62.return template.render(context, request)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/template/backends/django.py" in render
61.return self.template.render(context)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/template/base.py" in render
169.with context.bind_template(self):
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/contextlib.py" in __enter__
112.return next(self.gen)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/django/template/context.py" in bind_template
246.updates.update(processor(self.request))
Exception Type: TypeError at /addnewmodule
Exception Value: 'module' object is not callable

Answer 1

Read about CSRF tokens in django, it's used for site protection/

Answer 2

You are missing the the csrf_token in your addnewmodule.html form, so,
you can get back to addnewmodule.html form and add the {% csrf_token %}just below the tag form action="" method="POST" like this
<form action="" method="POST">
{% csrf_token %}