I'm trying to read a cookie and pass the data into the template but it returns a string /cart on the template.
view.py
def cart(request):
# exception no cookie named 'cart'
try:
cart = json.loads(request.COOKIES['cart'])
except:
cart = {}
context = {
'data': [],
'cart': cart,
}
for item in cart:
product_detail = ProductImage.objects.select_related(
'product'
).filter(product=item[0], place='Main Product Image')
context['data'].append(product_detail)
return render(request, 'store/cart.html', context)
I've checked whether the cart variable contains data and it does contain a dictionary. Following is the context variable,
{'data': [<QuerySet [<ProductImage: Product 1-22>]>], 'cart': {'1': {'unit_price': '980.00', 'quantity': 3}}}
when I tried to print the cart in the template using {{ cart }} it returns /cart but the data key contains all the data and can be displayed in the template.
template
{{ cart }} <!-- for testing -->
{% for item in data %}
{% if forloop.counter|divisibleby:2 %}
<div class="row border-bottom pb-3 pt-1 cart-item">
{% else %}
<div class="row border-bottom pb-3 pt-1 cart-item" style="background-color: #F8F8F8">
{% endif %}
<div class="col-sm-1 d-md-flex justify-content-center align-items-center remove-btn">
<button type="button" class="btn bg-transparent"
data-action="delete" data-product="{{ item.0.product.id }}_{{ item.0.product.get_sale_price|floatformat:2 }}">
<i class="fa fa-trash" aria-hidden="true"></i>
</button>
</div>
<div class="col-sm">
<img class="img-fluid img-thumbnail" src="{{ item.0.image.url }}" alt="" />
</div>
<div class="col-sm">
<a href="product/{{ item.0.product.id }}" class="cart-product-link">
<h5> {{ item.0.product.name }}</h5>
<p class="module fades">
{{ item.0.product.desc }}
</p>
</a>
</div>
<!-- quantity -->
<div class="col col-sm input-group my-auto text-center">
<div class="quantity ml-5">
<input type="number" class="update-quantity" data-action="q_add" min="1" max="20" step="1"
value="{{ cart|get_quantity:item.0.product.id }}" style="width: 50px"
data-product="{{ item.0.product.id }}_{{ item.0.product.get_sale_price|floatformat:2 }}">
</div>
</div>
<!-- cost -->
<div class="col col-sm mt-lg-5 text-center cost-container">
<span class="cost">{{ cart|get_cost:item.0.product.id }}</span>
</div>
</div>
{% endfor %}
So hoping to know what's going on here thanks in advance.
Update(wierd scenario)
The same thing happened again in a different file and I tried to do the solution bellow mentioned. Unfortunately, it didn't work. After hours of trying, I decided to rename the key of the dict {'cart': cart,...} to {'crt':cart} and it worked.
If you want to pass a context dict variable in the template. All you need to do is :
return render(request, 'store/cart.html', {'context' : context})
By this we are passing the context to html template. And the you can retrieve the context data by :
{{context.cart}}
Related
django returns MultiValueDictKeyError at /
'q' in my dashboard template when I'm trying to add search functionality into my app. I want when a user type something on the search input to return the value that user searched for. but i endup getting an error when i try to do it myself.
MultiValueDictKeyError at /
'q'
def dashboard(request):
photos = Photo.objects.all()
query = request.GET['q']
card_list = Photo.objects.filter(category__contains=query)
context = {'photos': photos, 'card_list':card_list}
return render(request, 'dashboard.html', context)
<div class="container">
<div class="row justify-content-center">
<form action="" method="GET">
<input type="text" name="q" class="form-control">
<br>
<button class="btn btn-outline-success" type="submit">Search</button>
</form>
</div>
</div>
<br>
<div class="container">
<div class="row justify-content-center">
{% for photo in photos reversed %}
<div class="col-md-4">
<div class="card my-2">
<img class="image-thumbail" src="{{photo.image.url}}" alt="Card
image cap">
<div class="card-body">
<h2 style="color: yellowgreen; font-family: Arial, Helvetica,
sans-serif;">
{{photo.user.username.upper}}
</h2>
<br>
<h3>{{photo.category}}</h3>
<h4>{{photo.price}}</h4>
</div>
<a href="{% url 'Photo-view' photo.id %}" class="btn btn-warning btn-
sm m-1">Buy Now</a>
</div>
</div>
{% empty %}
<h3>No Files...</h3>
{% endfor %}
</div>
</div>
try this
query = request.GET['q']
query = request.GET.get('q', '') # use get to access the q
The get() method returns the value of the item with the specified key.
I'm trying to filter out the friends of a user and also the current logged in user from a "search_users" function, I've tried using exclude() but keep getting an error I'm not sure whats wrong. I also wanted to add a "add friend" button next to the users, which I think I've done correctly on 'search_users.html.
Error
views.py
#login_required
def search_users(request):
query = request.GET.get('q')
object_list = User.objects.filter(username__icontains=query).exclude(friends=request.user.profile.friends.all())
context ={
'users': object_list
}
return render(request, "users/search_users.html", context)
search_users.html
{% extends "feed/layout.html" %} {% load static %}
{% block searchform %}
<form
class="form-inline my-2 my-lg-0 ml-5"
action="{% url 'search_users' %}"
method="get"
>
<input name="q" type="text" placeholder="Search users.." />
<button class="btn btn-success my-2 my-sm-0 ml-10" type="submit">
Search
</button>
</form>
{% endblock searchform %} {% block content %}
<div class="container">
<div class="row">
<div class="col-md-8">
{% if not users %}
<br /><br />
<h2><i>No such users found!</i></h2>
{% else %}
<div class="card card-signin my-5">
<div class="card-body">
{% for user_p in users %}
<a href="{{ user_p.profile.get_absolute_url }}"
><img
src="{{ user_p.profile.image.url }}"
class="rounded mr-2"
width="40"
height="40"
alt=""
/></a>
<a class="text-dark" href="{{ user_p.profile.get_absolute_url }}"
><b>{{ user_p }}</b></a
>
<small class="float-right">
<a
class="btn btn-primary mr-2"
href="/users/friend-request/send/{{ user_p.username }}"
>Add Friend</a>
</small>
<br/><br />
{% endfor %}
</div>
</div>
{% endif %}
</div>
<div class="col-md-4">
<div class="card card-signin my-5">
<a href="{{ request.user.profile.get_absolute_url }}"
><img
class="card-img-top"
src="{{ request.user.profile.image.url }}"
alt=""
/></a>
<div class="card-body">
<h5 class="card-title text-center">{{ request.user }}</h5>
<h6 class="text-center">
{{ request.user.profile.friends.count }}
<p class="text-muted">Friends</p>
</h6>
<p class="card-text text-center">{{ request.user.profile.bio }}</p>
</div>
</div>
</div>
</div>
{% endblock content %}
</div>
models.py
class Profile(models.Model):
user = models.OneToOneField(User, on_delete=models.CASCADE)
image = models.ImageField(default='default.png', upload_to='profile_pics')
slug = AutoSlugField(populate_from='user')
bio = models.CharField(max_length=255, blank=True)
friends = models.ManyToManyField('Profile', blank=True)
I would have done like this :
object_list = User.objects\
.filter(username__icontains=query)\
.exclude(profile__friends__in=request.user.profile.friends.all())\
.exclude(id=request.user.id)
It should be
User.profile.objects.filter(username__icontains=query).exclude(friends=request.user.profile.friends.all())
You were getting an error earlier because you referred to the user object earlier and not the profile itself. User.profile gives the one to one related model profile instead.
You can read more about one to one relationships here. https://docs.djangoproject.com/en/3.1/topics/db/examples/one_to_one/
I am trying to delete django model multiple objects using html checkboxes but i can't. Kindly guide me what I need to do complete my this task.
I try the following code for this purpose but i failed.
views.py
class DeleteProducts(SuccessMessageMixin, View):
success_url = reverse_lazy('stock:stock')
success_message = "Products are deleted successfully."
def post(self, request, *args, **kwargs):
products = self.request.POST.getlist('product')
Product.objects.filter(pk__in=products).delete()
messages.success(self.request, self.success_message, extra_tags='alert-danger')
return redirect('stock:stock')
In template i used checkboxes prefectly or not??
template.html
<form method="POST" action="{% url 'stock:deleteproducts' %}">
{% csrf_token %}
{% for product in page_obj %}
<div class="row" >
<input type="checkbox" value="{{ product.id }}">
<div class="col-sm-2" >
<h5>{{ product.id }}</h5>
<img src="{{ product.Picture.url }}" height="120px" />
</div>
<div class="col-sm-4" >
<h5><u>Product Name</u>: {{ product.pro_name }}</h5>
<h6><u>Company Name</u>: {{product.companyName}}</h6>
<div class="row" >
<div class="col-sm" >
<p>Purchase Price: <b>{{product.Purchase_Price}}</b></p>
</div>
<div class="col-sm" >
<p class="pt-0">Sale Price: <b>{{product.Sale_Price}}</b> </p>
</div>
</div>
<div class="row" >
<div class="col-sm" >
<p>Quantity <b>{{product.Quantity}}</b></p>
</div>
<div class="col-sm" >
<p> Added By: <b>{{product.saler}}</b> </p>
</div>
</div>
</div>
<div class="col-sm-4" >
<p><b>Added Date</b>:{{ product.pub_date }}</p>
<hr/>
<center>
<a href="{% url 'stock:editproduct' product.id %}" class="btn btn-success" >Edit</a>
</center>
</div>
</div>
<hr/>
{% endfor %}
<input type="submit" class="btn btn-danger" value="Delete" >
</form>
urls.py
path('delete/', login_required(DeleteProducts.as_view(), login_url='login'), name='deleteproducts'),
You need to assign name="product" attribute to checkboxes since you are trying to get it with self.request.POST.getlist('product'):
<input type="checkbox" value="{{ product.id }}" name="product">
I have a custom form validation that runs on my popup window form. If the form validation occurs i get a bad request error which is what i have programmed in my views.py . How do i render it so the user stays on the form and the validation message displays. Thanks for the help. Here is my code.
#login_required
def K8_Points_Classroom(request):
#context_from_k8_points = request.session['k8_points_context']
if request.method == 'POST':
form = K8Points_ClassroomForm(request.POST)
if form.is_valid():
form.save(commit=False)
form.save()
class_name = form.cleaned_data.get('class_name')
getstudents = Student.objects.filter(class_name = class_name)
students = getstudents.all()
form = K8Points_ClassroomForm()
context = {'form': form ,'students' : students, 'class_name': class_name,}
return render(request,'points/k8_points_classroom.html', context)
else:
return HttpResponseBadRequest("Bad Request")
else:
return render(request, 'points/k8_points_classroom.html', {'form': form} )
Updated form.html
{% extends 'base.html' %}
{% load crispy_forms_tags %}
{% crispy K8Points_ClassroomForm %}
{% load static %}
{% block content %}
<br>
<h2>{% load static %}
<img src="{% static 'forms/star.png' %}" alt="chain" height="62" width="62"> {{class_name}}</h2>
<br>
<br>
<form action="/points/k8_points_classroom" method="POST">
{% csrf_token %}
<!-- Start Date -->
<div class="container">
<div class="container">
<div class='row'>
<div class="col-4">
<p> Recording Data as User : {{user.username}} </p>
</div>
</div>
<div class='row'>
<div class = "col-2">
{{form.date|as_crispy_field }}
</div>
<div class = "col-2">
{{form.week_of|as_crispy_field }}
</div>
<div class = "col-2">
{{form.day|as_crispy_field }}
</div>
</div>
</div>
</form>
<div class="jumbotron" align="middle">
<img src="{% static 'forms/levelup.png' %}" alt="levelup" height="120" width= "120">
<h1>My Students</h1>
<!-- Line Break -->
<hr style="border: 1px solid black;"/>
<!-- Line Break -->
<div class="row mb-3">
{% for i in students%}
<div class="col-md-4 themed-grid-col"><h2>{{i.student_name}}</h2>
<p align="left"> Today's Score: {{total}}</p>
<h4>
<button type="button" class="btn btn-primary btn-lg btn-block" data-toggle="modal"
data-target="#PointsBox{{ student.pk }}">Level Up
</button>
</h4>
<div id="PointsBox{{ student.pk }}" class="modal fade" role="dialog">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<img src="{% static 'forms/star.png' %}" align="left" alt="chain" height="42"
width="42">
<h4 class="modal-title">Points Confirmation </h4>
<button type="button" class="close" data-dismiss="modal"> ×</button>
</div>
<div class="modal-body">
<h6>
<div class="modal-body">Please add the selected points for the current
student.</div>
</h6>
<form action="/points/k8_points_classroom" method="POST">
{% csrf_token %}
<div class="form-row" align='left'>
<div class="col-7">
{{form.class_name|as_crispy_field }}
<input type="student_name" class="form-control" value ="{{i}}" >
{{form.time_frame|as_crispy_field }}
</div>
</div>
<div class="form-row">
<div class="col-3" align='left'>
{{form.behavior|as_crispy_field }}
{{form.academic|as_crispy_field }}
<button type="submit" class="btn btn-success" ><i
class="fas fa-star"></i> Level Up
</button>
</div>
</div>
</div>
<div class="modal-foot"></div>
</div>
</div>
</div>
</div>
</form>
{% endfor %}
{% endblock %}
You can't return a bad response if the form is invalid. Instead, render the page again with the invalid form and in the temolate you will be able to render the errors. Try starting rendering the form just using {{ form.as_p }} and you will see the errors. The form errors are in form.errors and each field has its own errors, you can access to them form.field.erorrs
if request.method == 'POST':
form = K8Points_ClassroomForm(request.POST)
if form.is_valid():
form.save(commit=False)
form.save()
class_name = form.cleaned_data.get('class_name')
getstudents = Student.objects.filter(class_name = class_name)
students = getstudents.all()
form = K8Points_ClassroomForm()
context = {'form': form ,'students' : students, 'class_name': class_name,}
return render(request,'points/k8_points_classroom.html', context)
return render(request, 'points/k8_points_classroom.html', {'form': form} )
I wanted to use class based views and went through the django documentation and I get noerror messages but wind up with an empty template. I had it working with the non-classed based views. How do I reformat the code so that it renders the template? The template consists of a title, some headings, a navigational menu, flags for selecting instructions in different languages,
followed by a form which shows a flag, policy name char field, and a check box control. I think the initial = {'key': 'value'} in the view forms incorrect but I don't know what to replace it with. Thanks in advance.
forms.py
from django import forms
from policytracker.models import Flag, Label_Links
class PolicyStartForm( forms.Form ):
flags = Flag.objects.all()
policy = Label_Links.objects.all().filter(iso_language='en')[0]
frm_policy1_name=[]
for flag in flags:
frm_policy1_name.append(forms.CharField(max_length=40))
policy_dict = { 'new_policy_link' :policy.nav_section_new_policy_link,
'new_policy_label' :policy.nav_section_new_policy_label,
'graphs_link':policy.nav_section_graphs_link,
'graphs_label' :policy.nav_section_graphs_label,
'account_link' :policy.nav_section_account_link,
'account_label' :policy.nav_section_account_label,
'policy_list_link':policy.nav_section_list_policies_link,
'policy_list_label':policy.nav_section_list_policies_label,
'login_link' :policy.nav_section_login_link,
'login_label' :policy.nav_section_login_label,
'new_policy1_heading' :policy.new_policy1_heading,
'new_policy1_title_label':policy.new_policy1_title_label,
'policy_needs_translation_label':policy.new_policy1_needs_trans_label,
'policy1_submit_label': policy.new_policy1_submit_button_label,
'policy1_tip_msg' :policy.new_policy1_tip_msg,
't_logged_in' :True,
'frm_policy_name' :frm_policy1_name,
't_flags' :flags }
</code>
<code>
views.py
# coding=utf-8
from django.shortcuts import render
from django.http import HttpResponseRedirect
from policytracker.forms import LoginForm, PolicyStartForm
from policytracker.models import Flag, Label_Links
from django.views import View
class PolicyStartView(View):
template_name = 'policystart.html'
initial = {'key': 'value'}
form_class = PolicyStartForm
def get(self, request, *args, **kwargs):
form = self.form_class(initial=self.initial)
return render(request, self.template_name, {'form': form})
</code>
<code>
policystart.html
{% extends "policy-base.html" %}
{% block navsection %}
<div class="container top">
<div class="row">
<div class="col-lg-12 col-md-12 col-sm-12 col-xs-12">
<h1 class="text-center">{{ new_policy1_heading }}</h1>
</div>
</div>
{% if t_policy_details %}
<div class="row">
<div class="col-lg-4 col-md-4 col-sm-4 col-xs-4">
<h4 class="text-nowrap text-left" id="week_start">2017-02-11</h4></div>
<div class="col-md-4 col-xs-4">
<h4 class="text-center" id="week_number">Week 1</h4></div>
<div class="col-lg-4 col-md-4 col-sm-4 col-xs-4">
<h4 class="text-nowrap text-right" id="week_end">2016-09-18</h4></div>
</div>
{% endif %}
<div class="row">
<div class="col-md-12">
<nav class="navbar navbar-inverse">
<div class="container-fluid">
<div class="navbar-header"><a class="navbar-brand hidden navbar-link" href="#"> Policies</a>
<button class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navcol-1"><span class="sr-only">Toggle navigation</span><span class="icon-bar"></span><span class="icon-bar"></span><span class="icon-bar"></span></button>
</div>
<div class="collapse navbar-collapse" id="navcol-1">
<ul class="nav navbar-nav navbar-right">
<li class="hidden" role="presentation">{{ new_policy_label }}</li>
<li {% if not t_logged_in %} class="hidden" {% endif %} role="presentation">{{ graphs_label }}</li>
<li {% if not t_logged_in %} class="hidden" {% endif %} role="presentation">{{ account_label }}</li>
<li role="presentation">{{ policy_list_label }}</li>
{% if not t_logged_in %} <li role="presentation">{{ login_label }}</li> {% endif %}
</ul>
</div>
</div>
</nav>
</div>
</div>
{% include "pol-new1-lang.html" %}
</div>
<div class="container middle-container">
<div class="row">
<div class="col-lg-1 col-md-1 col-sm-1 col-xs-3">
<p> </p>
</div>
<div class="col-lg-6 col-md-6 col-sm-6 col-xs-8">
<h4>{{ new_policy1_title_label }}</h4>
</div>
<div class="col-lg-1 col-md-1 col-sm-1 col-xs-1">
<h4 class="text-center">{{ policy_needs_translation_label }}</h4>
</div>
</div>
<form method="POST">
{% csrf_token %}
{% load static %}
{% for f in t_flags %}
<div class="row flag">
<div class="col-lg-1 col-md-1 col-sm-1 col-xs-2"><img src="{% static f.flag_image_filename %}"></div>
<div class="col-lg-6 col-md-6 col-sm-6 col-xs-9">
<input class="form-control" type="text" name="policytitle">
</div>
<div class="col-lg-1 col-md-1 col-sm-1 col-xs-1">
<input class="form-control" type="checkbox" name="needstranslation">
</div>
</div>
{% endfor %}
<div class="row enter">
<div class="col-lg-1 col-md-1 col-sm-1 col-xs-3">
<p> </p>
</div>
<div class="col-lg-9 col-md-9 col-sm-9 col-xs-8">
<button class="btn btn-default" type="submit">{{ policy1_submit_label }}</button>
</div>
</div>
</form>
<div class="row enter">
<div class="col-lg-1 col-md-1 col-sm-1 col-xs-3">
<p> </p>
</div>
<div class="col-lg-9 col-md-9 col-sm-9 col-xs-8">
<p>{{ policy1_tip_msg }}</p>
</div>
</div>
</div>
{% endblock %}
</code>
You're using a load of variables in your template, but you aren't actually sending any of them to the context; the only thing your view passes is form. If you want to use things like new_policy1_heading, policy_needs_translation_label and t_flags you need to define them in your view and send them to the template from there.
Actually, it looks like you've completely misunderstood the jobs of forms and views. All the code you've currently put inside your form actually belongs in the view, and you should use policy_dict as the template context. It doesn't look like you need a form class at all.
Even there, though, you're doing much more work than you need to. There's no need to send all the specific fields of the policy object individually; just send policy and then in the template you can do {{ policy.policy_needs_translation_label }} etc.