Develop Reference

Django: can't access OneToOneField after rendering TemplateView Form

I am new to Django and don't understand what really is causing this:
I have a Model Company which has an OneToOneField, creator.
# models.py
class Company(models.Model):
class Meta:
verbose_name = 'Company'
verbose_name_plural = 'Companies'
creator = models.OneToOneField(User, related_name="company", on_delete=models.CASCADE, unique=False, null=True)
name = models.CharField(max_length=50)
I have a TemplateView class to handle get and post requests for creating a Company model:
# views.py
class create_company(TemplateView):
def get(self, request):
form = CompanyCreateForm()
title = "Some form"
return render(request, "form.html", {"form": form, "title": title})
def post(self, request):
form = CompanyCreateForm(request.POST)
if form.is_valid():
comp = form.save(commit=False)
comp.creator = request.user
comp.save()
return redirect('index')
The form is showing correctly also storing when I submit, the problem I am facing is with base.html where I show {% user.company %}; the form template extends it like:
{% extends "account/base.html" %}
{% load crispy_forms_tags %}
{% block content %}
<div class="container">
<form method="post" action="">
{% csrf_token %}
{{form|crispy}}
<button class="btn btn-success" type="submit">Save</button>
</form>
<br>
</div>
<br>
{% endblock %}
and in base.html I access
{% if user.is_authenticated %}
{% user.company %}
{% endif %}
But user.company is not showing even it is set; it shows only when I redirect to index but not when I render the form.
Can someone help me understand what causes this?

{% if request.user.is_authenticated %}
{% request.user.company %}
{% endif %}
you are not sending any context to the base.html, thus only user wont work.

This was the error when I simulated your code.
Error during template rendering
In template /home/user/django/drf_tutorial/snippets/templates/base.html, error at line 2
Invalid block tag on line 2: 'user.company', expected 'elif', 'else' or 'endif'. Did you forget to register or load this tag?
1 {% if user.is_authenticated %}
2 {% user.company %}
3 {% endif %}
4 {% block content %}{% endblock %}
It gives hint that the code to show company should be variable {{ }} instead of tag {% %}. So the base.html template should be as below.
{% if user.is_authenticated %}
{{ user.company }}
{% endif %}
{% block content %}{% endblock %}

Inputs are not showing in django form

My form inputs are not showing. It's just a button. i think homepage.html doesn't getting this form
Forms.py
class NameForm(forms.Form):
your_name = forms.CharField(label='Your name', max_length=100)
Views.py
def get_name(request):
# if this is a POST request we need to process the form data
if request.method == 'POST':
# create a form instance and populate it with data from the request:
form = NameForm(request.POST)
# check whether it's valid:
if form.is_valid():
# process the data in form.cleaned_data as required
# ...
# redirect to a new URL:
return HttpResponseRedirect('/')
# if a GET (or any other method) we'll create a blank form
else:
form = NameForm()
return render(request, 'mainApp/homepage.html', {'form': form})
homepage.html
{% extends "mainApp/wrapper.html" %}
{% block title %}Главная{% endblock %}
{% block content %}
<h1>Main page</h1>
{% include "mainApp/includes/somehtml.html" %}
<br>
<form action="/account/username/" method="post">
{% csrf_token %}
{{ form }}
<input type="submit" value="Submit" />
</form>
<br>
{% endblock %}
It shoes only "Submit" button. How can I fix it?

Please change
{{form}}
to {{form.as_p}}

Views.py
from app_name.forms import * # Change app_name with your app name
def get_name(request):
temp_context = {} # Check here
if request.method == 'POST':
acc_form = NameForm(request.POST) # Check here
temp_context["acc_form"] = acc_form # Check here
if acc_form.is_valid(): # Check here
return HttpResponseRedirect('/')
else:
temp_context[“acc_form”] = NameForm() # Check here
return render(request, 'mainApp/homepage.html', temp_context) # Check here
homepage.html
{% extends "mainApp/wrapper.html" %}
{% block title %}Главная{% endblock %}
{% block content %}
<h1>Main page</h1>
{% include "mainApp/includes/somehtml.html" %}
<br>
<form action="/account/username/" method="post">
{% csrf_token %}
{{ acc_form }} # Check here;
# you can also try {{ acc_form.as_table }} or {{ acc_form.as_p }} if there any issue
<input type="submit" value="Submit" />
</form>
<br>
{% endblock %}

django - csrf protection - markdown2

In some of my blog posts using django and markdown2, I am trying to include a form as follows:
views.py:
def post_detail(request, slug=None):
instance = get_object_or_404(Post, slug=slug)
if not instance.published:
raise Http404
return render(request, "posts/post_detail.html", {'instance': instance})
My template post_detail.html contains a {{ instance.get_markdown }} variable:
{% extends "base.html" %}
{% block body_content %}
<div>
{{ instance.get_markdown }}
</div>
{% endblock body_content %}
base.html:
<html>
<body>
{% block body_content %}
{% endblock body_content %}
</body>
</html>
models.py:
import markdown2
class Post(models.Model):
...
text = models.TextField(verbose_name=_("Text"))
...
def get_markdown(self):
return mark_safe(markdown2.markdown(self.text))
Example for a saved text in Post:
### Example
<form method = "POST">
{% csrf_token %}
First name:<input type="text" name="firstname">
<input type="submit" value="Submit">
</form>
This way, the page simply shows the string "{% csrf_token %}" within the form. How can I render the post with csrf protection?
My temporary solution is:
post_detail.html:
{% extends "base.html" %}
{% block body_content %}
<div>
{{ instance.get_markdown_text }}
</div>
{% if instance.form %}
<div>
<form method = "POST">{% csrf_token %}
{{ instance.get_markdown_form }}
</form>
</div>
{% endif %}
{% endblock body_content %}
models.py:
import markdown2
class Post(models.Model):
...
text = models.TextField(verbose_name=_("Text"))
form = models.TextField(verbose_name=_("Form"), blank=True, null=True)
...
def get_markdown_text(self):
return mark_safe(markdown2.markdown(self.text))
def get_markdown_form(self):
return mark_safe(markdown2.markdown(self.form))
I'm not very happy with this solution, because of the unnecessary field "form" and method get_markdown_form in Post and post_detail.html.

not able to open registration form page

trying to create a registration form, and I am facing an issue. so, below are my python pages:
form.py
from .models import User
from django import forms
from django.forms import ModelForm
class SignUpForm(ModelForm):
class Meta:
model = User
fields = ('username','password','email')
models.py
from django.db import models
#from django.core.urlresolvers import reverse
from django.contrib.auth.models import User
class Registration(models.Model):
user = models.OneToOneField(User, on_delete=models.CASCADE)
urls.py
urlpatterns = [
url(r'^register/$', views.SignUpFormView, name= 'register'),
]
test.html
{% extends 'user_info/base.html' %}
{% block body %}
{% block content %}
<form method="POST">
{% csrf_token %}
{{ form }}
username:<br>
<input type="text" name="username"><br>
password:<br>
<input type="text" name="password"><br>
email:<br>
<input type="text" name="email"><br>
<input type="submit" value="Submit" />
</form>
{% endblock %}
{% endblock %}
views.py
def SignUpFormView(request):
template_name = 'test.html'
try:
if request.method == 'POST':
form = SignUpForm(request.POST)
if form.is_valid():
form.save()
username = form.cleaned_data.get('username')
password = form.cleaned_data.get('password')
email = form.cleaned_data.get('email')
return render(request, template_name, {'form':form})
except ValueError:
print("Oops! That was not a valid entry, try again...")
else:
SignUpForm()
return render(request, 'user_info/about.html')
The issue is, my "SignUpFormView" function in views.py is not entering the "if" statement, its directly going to "else". I seem to be lost here.
I have 'about.html'. I do not see any error as well. Which I find very weird. Please help.
Note: I am using Django's default in-built "User" model, and I do not wish to create any custom model.
Modified views.py
def SignUpFormView(request):
user_form = 'SignUpForm'
template_name = 'test.html'
if request.method == 'POST':
form = user_form(request.POST)
if form.is_valid():
form.save()
#username = form.cleaned_data.get('username')
#password = form.cleaned_data.get('password')
#email = form.cleaned_data.get('email')
#user.save()
return render(request, template_name, {'form':form})
else:
SignUpForm()
return render(request, 'user_info/about.html')
Modified forms.py
from .models import User
from django import forms
from django.forms import ModelForm
class SignUpForm(forms.ModelForm):
#password = forms.Charfield(widget=forms.PasswordInput)
class Meta:
model = User
fields = ('username','password','email')
modified test.html
{% extends 'user_info/base.html' %}
{% block body %}
{% block content %}
{% for error in form.errors %}
{{ form.errors | default_errors }}
{% endfor %}
<form method="post">
{% csrf_token %}
{{ form.as_p }}
{% for field in form %}
<p>
username:<br>
<input type="text" name="username"><br>
password:<br>
<input type="text" name="password"><br>
email:<br>
<input type="text" name="email"><br>
{% for error in field.errors %}
<p style="color: red">{{ error }}</p>
{% endfor %}
</p>
{% endfor %}
<button type="submit" value="Submit">sign up </button>
</form>
{% endblock %}
{% endblock %}

BootstrapError Parameter "form" should contain a valid Django Form

i have an app called reviews
reviews/forms.py
from django.forms import ModelForm, Textarea
from reviews.models import Review
class ReviewForm(ModelForm):
class Meta:
model = Review
fields = ['rating', 'comment']
widgets = {
'comment': Textarea(attrs={'cols': 40, 'rows': 15}),
}
reviews/views.py
from django.shortcuts import get_object_or_404, render
from django.http import HttpResponseRedirect
from django.core.urlresolvers import reverse
from .models import Review, Wine
from .forms import ReviewForm
import datetime
from django.contrib.auth.decorators import login_required
#login_required
def add_review(request, wine_id):
wine = get_object_or_404(Wine, pk=wine_id)
form = ReviewForm(request.POST)
if form.is_valid():
rating = form.cleaned_data['rating']
comment = form.cleaned_data['comment']
user_name = form.cleaned_data['user_name']
user_name = request.user.username
review = Review()
review.wine = wine
review.user_name = user_name
review.rating = rating
review.comment = comment
review.pub_date = datetime.datetime.now()
review.save()
# Always return an HttpResponseRedirect after successfully dealing
# with POST data. This prevents data from being posted twice if a
# user hits the Back button.
return HttpResponseRedirect(reverse('reviews:wine_detail', args=(wine.id,)))
return render(request, 'reviews/wine_detail.html', {'wine': wine, 'form': form})
reviews/templates/reviews/wine_detail.html
{% extends 'base.html' %}
{% load bootstrap3 %}
{% block title %}
<h2>{{ wine.name }}</h2>
<h5>{{ wine.review_set.count }} reviews ({{ wine.average_rating | floatformat }} average rating)</h5>
{% endblock %}
{% block content %}
<h3>Recent reviews</h3>
{% if wine.review_set.all %}
<div class="row">
{% for review in wine.review_set.all %}
<div class="col-xs-6 col-lg-4">
<em>{{ review.comment }}</em>
<h6>Rated {{ review.rating }} of 5 by {{ review.user_name }}</h6>
<h5><a href="{% url 'reviews:review_detail' review.id %}">
Read more
</a></h5>
</div>
{% endfor %}
</div>
{% else %}
<p>No reviews for this wine yet</p>
{% endif %}
<h3>Add your review</h3>
{% if error_message %}<p><strong>{{ error_message }}</strong></p>{% endif %}
<form action="{% url 'reviews:add_review' wine.id %}" method="post" class="form">
{% csrf_token %}
{% bootstrap_form form layout='inline' %}
{% buttons %}
<button type="submit" class="btn btn-primary">
{% bootstrap_icon "star" %} Add
</button>
{% endbuttons %}
</form>
{% endblock %}
base.html
{% load bootstrap3 %}
{% bootstrap_css %}
{% bootstrap_javascript %}
{% block bootstrap3_content %}
<div class="container">
<nav class="navbar navbar-default">
<div class="navbar-header">
<a class="navbar-brand" href="{% url 'reviews:review_list' %}">Winerama</a>
</div>
<div id="navbar" class="navbar-collapse collapse">
<ul class="nav navbar-nav">
<li>Wine list</li>
<li>Home</li>
</ul>
<ul class="nav navbar-nav navbar-right">
{% if user.is_authenticated %}
<li>Hello {{ user.username }}</li>
<li>Logout</li>
{% else %}
<li>Login</li>
<li>Register</li>
{% endif %}
</ul>
</div>
</nav>
<h1>{% block title %}(no title){% endblock %}</h1>
{% bootstrap_messages %}
{% block content %}(no content){% endblock %}
</div>
{% endblock %}
I am getting the error at the line {% bootstrap_form form layout='inline' %} in the html file
Any idea how to fix this?

There's a few problems with your code as it stands, so I'll try to clean it up with some comments as I would write it to add a review to a wine.
#login_required
def add_review(request, wine_id):
wine = get_object_or_404(Wine, pk=wine_id)
if request.POST:
form = ReviewForm(request.POST)
else:
form = ReviewForm()
if form.is_valid():
### NO NEED FOR - already set as part of valid modelform ::: rating = form.cleaned_data['rating']
### AS WELL AS ::: comment = form.cleaned_data['comment']
### THIS IS NOT A FIELD IN YOUR FORM :::user_name = form.cleaned_data['user_name']
user_name = request.user.username
review = form.save(commit=False) # commit = False means that this instantiate but not save a Review model object
review.wine = wine
review.user_name = user_name # Why use this instead of a ForeignKey to user?
review.pub_date = datetime.datetime.now() # works as long as pub_date is a DateTimeField
review.save() # save to the DB now
# Always return an HttpResponseRedirect after successfully dealing
# with POST data. This prevents data from being posted twice if a
# user hits the Back button.
return HttpResponseRedirect(reverse('reviews:wine_detail', args=(wine.id,))) # THIS will redirect only upon form save
return render(request, 'reviews/wine_detail.html', {'wine': wine, 'form': form})
Now, the error your seeing is most likely related to you passing request.POST to a form even if request.POST is blank; the form will attempt to set initial values but with a querydict that has no values that actually relates to the form.
EDIT: In response to your comments, my next step would be to try and render each form field individually and see if I can trigger a failure.
Instead of {% bootstrap_form form layout='inline' %}, try-
{% for field in form %}
{% bootstrap_field field %}
{% endfor %}
If this is an error with the django-bootstrap library trying to render the textarea widget and the inline style together (as I would suspect at this point), you can also eliminate the widget parameter and see if there's a fix. If there is, I'd suggest overriding your modelform's init method for assign a widget post a call super on init.

In Class Base View
This error may occur when you use form_class in the wrong generic view.
⮕ Open your views.py then check to see if you have set the wrong generic view in your class.
Example
class ProfileUpdateView(T̶e̶m̶p̶l̶a̶t̶e̶V̶i̶e̶w̶ UpdateView):
model = User
form_class = forms.ProfileForm
success_url = reverse_lazy("stories:story_list")
template_name = 'profile.html'
def get_object(self, queryset=None):
return get_object_or_404(User, pk=self.request.user.id)