I want send product id to my views.
Templates
<div class="products__header--search-result">
<ul>
{% for product in products %}
<li onclick="change('{{ product.id }}')">{{ product.name }}</li>
{% endfor %}
</ul>
</div>
<script>
function change(foo) {
$.ajax({
url: {% url 'dashboard' %},
data: {
'foo': foo,
},
});
}
</script>
views.py
myRequets = request.GET.get('foo')
But myRequets return 'None'
How can I fix this?
Is there a better way to pass values to views.py?
You don't need JS to do this because Django allows parameters in urls:
# URLconf
from django.urls import path
from . import views
urlpatterns = [
path('product/', views.product),
path('product/<int:product_id>/', views.product),
]
views.py
# View (in product/views.py)
def product(request, product_id=None):
products = None
if product_id:
# Output the appropriate page of product entry, according to product_id.
return ...
# Output the appropriate page when product_id is None
return ...
Source:
https://docs.djangoproject.com/en/3.2/topics/http/urls/#example (adapted)
Then in your template:
{% if products %}
<div class="products__header--search-result">
<ul>
{% for product in products %}
<li>{{ product.name }}</li>
{% endfor %}
</ul>
</div>
{% endif %}
Related
Most answers for this on Stack Overflow are written using Ajax and or jQuery. For an assignment I need it to be vanilla JS. This is what I have so far. Strangely I have a working delete button with a GET request method. Not a POST method as it normally would be. I'm not sure why and honestly got it working without the confirmation modal with trial and error.
This is what I have so far:
urls.py
from django.urls import path
from . import views
urlpatterns = [
path('', views.home, name='vgHome'), # relative path to VideoGames homepage
path('about/', views.about, name='vgAbout'), # relative path to VideoGames about page
path('news/', views.news, name='vgNews'), # realtive path to VideoGames news page
path('gallery', views.gallery, name='vgGallery'), # relative path to VideoGames gallery page
path('library/', views.library, name='vgLibrary'), # relative path to VideoGames user library
path('library/create', views.create_game, name='addGame'), # realative path to game create form
path('library/<int:game_id>/game_info', views.game_info, name='gameInfo'), # realative path to each games info page
path('library/<int:game_id>/update', views.update_game, name='updateGame'), # relative path to update selected game
path('library/<int:id>/delete', views.delete_game, name='deleteGame'), # relative path to delete selected game
]
views.py
from django.shortcuts import render, get_object_or_404, HttpResponseRedirect, redirect
from django.contrib import messages
from .forms import GameForm
from .models import Game
# Displays VideoGames app homepage
def home(request):
return render(request, 'VideoGames/videogames_home.html')
# Displays VideoGames about page
def about(request):
return render(request, 'VideoGames/videogames_about.html')
# Displays VideoGames news page
def news(request):
return render(request, 'VideoGames/videogames_news.html')
# Displays VideoGames gallery page
def gallery(request):
return render(request, 'VideoGames/videogames_news.html')
# Displays VideoGames user library page
def library(request):
games_list = Game.objects.all()
context = {
'games_list': games_list,
}
return render(request, 'VideoGames/videogames_library.html', context)
# Displays each games details page, linked from library
def game_info(request, game_id):
game = get_object_or_404(Game, pk=game_id)
return render(request, 'VideoGames/game_details.html', {'game': game})
def create_game(request):
if request.method == 'POST':
form = GameForm(request.POST)
if form.is_valid():
form.save()
messages.success(request, 'Game successfully added!')
return redirect('vgLibrary')
else:
messages.error(request, 'Please fix fields with errors!')
else:
form = GameForm()
return render(request, 'VideoGames/game_form.html', {'form': form})
def update_game(request, game_id):
game = get_object_or_404(Game, pk=game_id)
form = GameForm(request.POST or None, instance=game)
context = {'form': form}
if form.is_valid():
form.save(commit=False)
form.save()
messages.success(request, 'Game successfully updated!')
return redirect('vgLibrary')
return render(request, 'VideoGames/game_update.html', context)
def delete_game(request, id=None):
game = get_object_or_404(Game, id=id)
if request.method == 'GET':
game.delete()
messages.success(request, 'Game successfully deleted!')
return redirect('vgLibrary')
else:
return render(request, 'VideoGames/game_details.html', {'game': game})
Template where delete button is located (game_details.html)
{% extends 'VideoGames/videogames_base.html' %}
{% load staticfiles %}
{# Page/Tab Title #}
{% block title %}Video Games | Library | {{ game.game_title }}{% endblock %}
{# Using parent stylesheet + adding page specific css file as well #}
{% block stylesheets %}
{{ block.super }}
<link rel="stylesheet" type="text/css" href="{% static 'VideoGames/css/vg_details.css' %}">
{% endblock %}
{# Homepage background image #}
{% block pagetop-css %}{% endblock %}
<!-- Showcase text for homepage -->
{% block page-title %}<h1>{{ game.game_title }}</h1>{% endblock %}
{% block page-subtitle %}{%endblock %}
{% block appcontent %}
<h4 class="info-head">Developer</h4>
<ul class="details">
<li>{{ game.game_developer }}</li>
</ul>
<h4 class="info-head">Release Date</h4>
<ul class="details">
<li>{{ game.game_release }}</li>
</ul>
<h4 class="info-head">Your Rating</h4>
<ul class="details">
<li>{{ game.rating }}</li>
</ul>
<h4 class="info-head">Genre</h4>
<ul class="details">
<li>{{ game.game_genre }}</li>
</ul>
<h4 class="info-head">Platform</h4>
<ul class="details">
<li>{{ game.game_platform }}</li>
</ul>
{% endblock %}
{% block button1 %}Update{% endblock %}
{% block button2 %}Delete
{% endblock %}
{% block button3 %}Library{% endblock %}
{% block javascript %}
{{ block.super }}
<script>
function myFunction() {
window.confirm("Do you really want to delete {{ game.game_title }} from your library?")
}
</script>
{% endblock %}
As you can see from the template I am just using a basic confirm function to give some sort of confirmation, but that doesn't even work as if I click cancel it still goes through. My guess is it has something to do with the delete view using a GET method instead of a Post method.
window.confirm returns a Boolean indicating whether the user clicked confirm. This value is false if the user clicked cancel. You need to only open deleteGame if the user confirmed.
function myFunction() {
if (window.confirm("Do you really want to delete {{ game.game_title }} from your library?")) {
window.location.href="{% url 'deleteGame' game.id %}";
}
}
I have a dictionary in views.py which contains track_id and image_path. For each track_id there could be one or more image_path, hence it is a dictionary where values are passed as the list.
Example representation:
{0: ['1.jpg', '2.jpg'], 1: ['3.jpg'], 2: ['4.jpg', '5.jpg', '6.jpg']}
How can I display images on HTML?
Assuming the dictionary is passed to your template as track_images:
{% for track_id, image_paths in track_images.items %}
<div>
<h1>Track {{ track_id }}</h1>
{% for image_path in image_paths %}
<img src="{{ image_path }}" >
{% endfor %}
</div>
{% endfor %}
The timer stuff is not Django-related.
I am using Ajax with Django 1.10 to implement a like functionality ( a user likes an image posted by another user) on my website. I have the following code :
The views file :
#ajax_required
#login_required
#require_POST
def image_like(request):
image_id = request.POST.get('id')
action = request.POST.get('action')
if image_id and action:
try:
image = Image.objects.get(id=image_id)
if action == 'like':
image.users_like.add(request.user)
else:
image.users_like.remove(request.user)
return JsonResponse({'status':'ok'})
except:
pass
return JsonResponse({'status':'ko'})
def image_detail(request, id, slug):
image = get_object_or_404(Image, id=id, slug=slug)
return render(request,
'images/image/detail.html',
{'section': 'images',
'image': image})
In base.html :
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.4/jquery.min.js"></script>
<script src=" http://cdn.jsdelivr.net/jquery.cookie/1.4.1/jquery.cookie.min.js "></script>
<script>
var csrftoken = $.cookie('csrftoken');
function csrfSafeMethod(method) {
// these HTTP methods do not require CSRF protection
return (/^(GET|HEAD|OPTIONS|TRACE)$/.test(method));
}
$.ajaxSetup({
beforeSend: function(xhr, settings) {
if (!csrfSafeMethod(settings.type) && !this.crossDomain) {
xhr.setRequestHeader("X-CSRFToken", csrftoken);
}
}
});
$(document).ready(function(){
{% block domready %}
{% endblock %}
});
</script>
And finnaly in the detail.html :
{% extends "base.html" %}
{% block title %}{{ image.title }}{% endblock %}
{% block content %}
...
{% with total_likes=image.users_like.count users_like=image.users_like.all %}
<div class="image-info">
<div>
<span class="count">
<span class="total">{{ total_likes }}</span>
like{{ total_likes|pluralize }}
</span>
<a href="#" data-id="{{ image.id }}" data-action="{% if request.user in users_like %}un{% endif %}like" class="like button">
{% if request.user not in users_like %}
Like
{% else %}
Unlike
{% endif %}
</a>
</div>
{{ image.description|linebreaks }}
</div>
<p> Image liked by :</p>
<div class="image-likes">
{% for user in image.users_like.all %}
<div>
<p>{{ user.last_name }}</p>
</div>
{% empty %}
Nobody likes this image yet.
{% endfor %}
</div>
{% endwith %}
{% endblock %}
{% block domready %}
$('a.like').click(function(e){
e.preventDefault();
$.post('{% url "images:like" %}',
{
id: $(this).data('id'),
action: $(this).data('action')
},
function(data){
if (data['status'] == 'ok')
{
var previous_action = $('a.like').data('action');
// toggle data-action
$('a.like').data('action', previous_action == 'like' ?
'unlike' : 'like');
// toggle link text
$('a.like').text(previous_action == 'like' ? 'Unlike' :
'Like');// update total likes
var previous_likes = parseInt($('span.count .total').text());
$('span.count .total').text(previous_action == 'like' ?
previous_likes + 1 : previous_likes - 1);
}
}
);
});
{% endblock %}
While I mostly understand the code itself, I need help understanding in what orders the requests, the callback functions and everything else is executed ... something like : ,users clicks the like button, that information is passed to the server , it is being manipulated, data-base modified , sent back, the page changes ...
Tell me if any extra code ( models, urls etc. ) is needed. Could't post everything.
How can I sort this <ul> that the 2 for Statements are mixed?
I allready tried with javascript and jquery but I only got the error that the <ul> is NULL.
<ul>
{% assign docs = site.documents | sort: "title" %}
{% for document in docs %}
<li>
{{ document.title }} - {{ document.url }}
</li>
{% endfor %}
{% assign dataDocs = site.data.documents | sort: "title" %}
{% for document in dataDocs %}
<li>
{{ document.title }} - {{ document.url }}
</li>
{% endfor %}
</ul>
You're sorting each list rather than one list. You could make it one list before sorting, and render each item differently by giving them an extra front matter identifier (is_from_data):
<ul>
{% assign docs = site.documents | concat: site.data.documents | sort: "title" %}
{% for document in docs %}
<li>
{% if document.is_from_data %}
{{ document.title }} - {{ document.url }}
{% else %}
{{ document.title }} - {{ document.url }}
{% endif %}
</li>
{% endfor %}
</ul>
You can add is_from_data: true to each item's front matter or with Jekyll defaults in your configuration.
Older versions of Jekyll might not have the concat filter. You can get around this by pushing each element to a new array:
{% assign docs = "" | split: "" %}
{% for doc in site.documents %}
{% assign docs = docs | push: doc %}
{% endfor %}
{% for doc in site.data.documents %}
{% assign docs = docs | push: doc %}
{% endfor %}
I have been working through the Tango with Django exercises to cut my teeth into Django. Almost done but having a problem with the Ajax part.
Ajax function to auto_add a page is not being called. Idk what the problem is since the other functions are being called.
On the shell prompt, there is no call to the ajax function at all. Help needed.
Pertinent code attached. It is the same as on the website link above.
static/rango-ajax.js
$('.rango-add').click(function(){
var catid = $(this).attr("data-catid");
var title = $(this).atrr("data-title");
var url = $(this).attr("data-url");
$.get('/rango/auto_add_page/', {category_id: catid, url: url, title: title}, function(data){
$('#pages').html(data);
me.hide();
});
});
templates/rango/category.html
{% if user.is_authenticated %}
<button data-catid="{{category.id}}" data-title="{{ result.title }}" data-url="{{ result.link }}" class="rango-add btn btn-mini btn-info" type="button">Add</button>
{% endif %}
rango/views.py
#login_required
def auto_add_page(request):
context = RequestContext(request)
cat_id = None
url = None
title = None
context_dict = {}
if request.method == 'GET':
cat_id = request.GET['category_id']
url = request.GET['url']
title = request.GET['title']
if cat_id:
category = Category.objects.get(id=int(cat_id))
p = Page.objects.get_or_create(category=category, title=title, url=url)
pages = Page.objects.filter(category=category).order_by('-views')
#Adds our results list to the template context under name pages.
context_dict['pages'] = pages
return render_to_response('rango/page_list.html', context_dict, context)
rango/urls.py
urlpatterns = patterns('',
url(r'^$', views.index, name='index'),
url(r'^goto/$', views.track_url, name='track_url'),
url(r'^add_category/$', views.add_category, name='add_category'),
url(r'^auto_add_page/$', views.auto_add_page, name='auto_add_page'),
Complete code is at this link.
your code is good, the only thing what you have to do is to define your template in /tango/templates/rango/page_list.html. This template have the following code:
{% if pages %}
<ul>
{% for page in pages %}
<li>
{{ page.title}}
{% if page.views > 1 %}
({{page.views}} views)
{% elif page.views == 1 %}
({{page.views}} view)
{% endif %}
</li>
{% endfor %}
</ul>
{% else %}
<strong> No Pages currently in category. </strong>
{% endif %}
And inside of your category template you must define the following code:
% if category %}
{% if user.is_authenticated %}
Add a new Page <br>
{% endif %}
{% if pages %}
<div id="pages">
<ul>
{% for page in pages %}
<li>
{{ page.title}}
{% if page.views > 1 %}
({{page.views}} views)
{% elif page.views == 1 %}
({{page.views}} view)
{% endif %}
</li>
{% endfor %}
</ul>
</div>
{% else %}
<strong> No Pages currently in category. </strong>
{% endif %}
{% else %}
The specified category {{ category_name }} does not exist!
{% endif %}
I'm working through this section of the tutorial now and just want to add to Héctor's answer. To avoid duplicating the code to display the list of pages I did the following:
I added a get_page_list() method to tango/rango/templatetags/rango_extras.py, similar to the get_category_list() method used to display a list of categories in an earlier section of the tutorial.
from rango.models import Page
#register.inclusion_tag("rango/page_list.html")
def get_page_list(category):
pages = Page.objects.filter(category=category) if category else []
return {'pages': pages}
Then we just need to load rango_extras and call the get_page_list() method in tango/templates/rango/category.html.
{% extends 'rango/base.html' %}
{% load rango_extras %}
<!-- Existing code -->
{% if category %}
<!-- Existing code to show category likes and like button -->
<div id="page_list">
{% get_page_list category %}
</div>
<!-- Existing code to show search if user is authenticated -->
{% else %]
The specified category {{ category_name }} does not exist!
{% endif %}
This allows you to display the list of pages when a category page is first loaded and then refresh it if a category is added from the search area, without having to duplicate any code.