I've followed the official docs to use paginator in Django and it not working, it shows the right page count but on every page, the whole list displayed instead of slicing it into many pages
views.py
def home(request):
current_user = request.user
all_dress = Item.objects.all().filter(dress_active=True).order_by('-created_at')
all_good = Item.objects.all().filter(dress_special=True)
all_name = Name.objects.all()
all_ads = Ads.objects.all()
#pig
paginator = Paginator(all_dress, 3) # Show 12 dress per page
page = request.GET.get('page')
dresss = paginator.get_page(page)
context = {
'all_dress': all_dress,
'all_name': all_name,
'current_user': current_user,
'all_good':all_good,
'all_ads':all_ads,
'dresss':dresss,
}
return render(request, 'fostan/index.html',context)
HTML
<div class="row">
<div class="col">
</div>
<div class="col">
<div dir="ltr">
<div class="pagination" align="left">
<span class="step-links" align="left">
{% if dresss.has_previous %}
« first
previous
{% endif %}
<span class="current">
Page number {{ dresss.number }} of {{ dresss.paginator.num_pages }}
</span>
<br>
{% if dresss.has_next %}
next
last »
{% endif %}
</span>
</div>
</div>
</div>
<div class="col">
</div>
</div>
I have 9 items, and I asked the paginator to show only 3 items per page, the result is 3 pages with the same 9 items on every page!
item list
<ul class="thumbnails" >
{% for dress in all_dress %}
<li class="span4 pull-left" >
<div class="thumbnail">
<a class="zoomTool" href="{% url 'dress_details' dress.pk%}" title="add to cart"><span class="icon-search"></span> عرض التفاصيل</a>
<img class="main" src="{{ dress.dress_image1.url }}" alt="">
<div class="caption">
<h5> فستان {{ dress.dress_name }} </h5>
<h4>
<a class="defaultBtn" href="{% url 'dress_details' dress.pk%}" title="إضفط لمشاهدة الفستان"><span class="icon-zoom-in"></span></a>
<span class="pull-left">{{ dress.dress_price }} جنيه </span>
</h4>
</div>
</div>
</li>
{% endfor %}
</ul>
You should do this way:
paginator = Paginator(all_dress, 3)
page = request.GET.get('page')
try:
dresss = paginator.page(page)
except PageNotAnInteger:
dresss = paginator.page(1)
except EmptyPage:
dresss = paginator.page(paginator.num_pages)
Related
I am trying to create a webpage using Django where my database consists thousands of CVEs and display the list of CVEs based on what I typed in the search bar. So far, the search function is working perfectly and it displays the paginated results. But when I try to navigate to next page, it will show a blank page. Below is the code of my views.py and template.
views.py
def search_cve(request):
if request.method == 'GET':
searched = request.GET.get('searched')
if searched:
cve_search = BDSA.objects.filter(cve_id__icontains=searched)
paginator = Paginator(cve_search.order_by('-cve_id'), 10) # show 10 per page
try:
page = int(request.GET.get('page', '1'))
except:
page = 1
try:
cves = paginator.page(page)
except:
cves = paginator.page(1)
index = cves.number - 1
max_index = len(paginator.page_range)
start_index = index - 2 if index >= 2 else 0
end_index = index + 2 if index <= max_index - 2 else max_index
page_range = list(paginator.page_range)[start_index:end_index]
return render(request, 'QueryService/search_cve.html', {'searched':searched, 'cve_search':cve_search, 'cves': cves, 'page_range': page_range})
else:
return render(request, 'QueryService/search_cve.html', {})
template
<body>
{% block content %}
<br/>
<center>
<h1>Searched for: {{ searched }}</h1>
<br/>
<div class="container">
<table class="table table-hover table-striped table-bordered">
{% for cve in cves %}
<tr>
<td>{{ cve }}</td>
</tr>
{% endfor %}
</table>
</div>
<br/>
<nav aria-label="Page navigation example">
<ul class="pagination justify-content-center">
{% if cves.has_previous %}
<li class="page-item"><a class="page-link" href="?page=1">« First</a></li>
<li class="page-item"><a class="page-link" href="?page={{ cves.previous_page_number }}">Prev</a></li>
{% endif %}
{% for pg in page_range %}
{% if cves.number == pg %}
<li class="page-item"><a class="page-link" href="?page={{ pg }}" class="btn btn-default">{{ pg }}</a></li>
{% else %}
<li class="page-item"><a class="page-link" href="?page={{ pg }}" class="btn">{{ pg }}</a></li>
{% endif %}
{% endfor %}
{% if cves.has_next %}
<li class="page-item"><a class="page-link" href="?page={{ cves.next_page_number }}">Next</a></li>
<li class="page-item"><a class="page-link" href="?page={{ cves.paginator.num_pages }}">Last »</a></li>
{% endif %}
</ul>
</nav>
<br/><br/>
</center>
{% endblock %}
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
</body>
Any idea on how to fix this?
Nevermind I got the fix! I added this code in the href element of the pagination.
&searched={{ searched }}
For example:
href="?page=1&searched={{ searched }}
I made a blog app in which I want to add pagination both on home page and category page. but after a lot of efforts I didn't get how to use it in the category page. I use 2 parameters in category view and I don' know how to fix it now. whenever I click on category "That page number is not an integer" displays.
views.py:
def allpost(request):
postData = Post.objects.all()
paginator = Paginator(postData, 5) # Show 5 contacts per page.
page_number = request.GET.get('page')
page_obj = paginator.get_page(page_number)
return render(request, 'posts.html', {'page_obj': page_obj})
def CategoryView(request, cats='category__title'):
category_posts = Post.objects.all()
paginator = Paginator(category_posts, 5)
# We don't need to handle the case where the `page` parameter
# is not an integer because our URL only accepts integers
try:
category_posts = paginator.page('cats')
except EmptyPage:
# if we exceed the page limit we return the last page
category_posts = paginator.page(paginator.num_pages)
return render(request, 'categories.html', {'category_posts': category_posts})
urls.py:
path('category/<str:cats>/', views.CategoryView, name ="category"),
categories.html
{% extends 'base.html' %}
{%block content%}
<h1> Category: {{ cats }} </h1>
{% for post in category_posts %}
<div class="container mt-3">
<div class="row mb-2">
<div class="col-md-6">
<div class="card flex-md-row mb-4 box-shadow h-md-250">
<div class="card-body d-flex flex-column align-items-start">
<strong class="d-inline-block mb-2 text-primary">{{ post.category }}</strong>
<h3 class="mb-0">
<a class="text-dark" href="{% url 'detail' post.id %}">{{post.title}}</a>
</h3>
<div class="mb-1 text-muted">{{ post.public_date }}</div>
<p class="card-text mb-auto">{{ post.summary }}</p>
Continue reading
</div>
<img class="card-img-right flex-auto d-none d-md-block" data-src="holder.js/200x250?theme=thumb" alt="Thumbnail [200x250]" style="width: 200px; height: 250px;" src="data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D%22200%22%20height%3D%22250%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20200%20250%22%20preserveAspectRatio%3D%22none%22%3E%3Cdefs%3E%3Cstyle%20type%3D%22text%2Fcss%22%3E%23holder_182c981dfc3%20text%20%7B%20fill%3A%23eceeef%3Bfont-weight%3Abold%3Bfont-family%3AArial%2C%20Helvetica%2C%20Open%20Sans%2C%20sans-serif%2C%20monospace%3Bfont-size%3A13pt%20%7D%20%3C%2Fstyle%3E%3C%2Fdefs%3E%3Cg%20id%3D%22holder_182c981dfc3%22%3E%3Crect%20width%3D%22200%22%20height%3D%22250%22%20fill%3D%22%2355595c%22%3E%3C%2Frect%3E%3Cg%3E%3Ctext%20x%3D%2256.20000076293945%22%20y%3D%22131%22%3EThumbnail%3C%2Ftext%3E%3C%2Fg%3E%3C%2Fg%3E%3C%2Fsvg%3E" data-holder-rendered="true">
</div>
</div>
</div>
</div>
{% endfor %}
{% include 'pagination.html' %}
{%endblock%}
pagination.html
<div class="container mt-3">
<nav aria-label="Page navigation example">
<ul class="pagination">
{% if page_obj.has_previous %}
<li class="page-item"><a class="page-link" href="/?page=1">First</a></li>
<li class="page-item"><a class="page-link" href="/?page={{ page_obj.previous_page_number }}">Previous</a></li>
{% endif %}
<li class="page-item"><a class="current" href="/?page={{ page_obj.number }} of {{ page_obj.paginator.num_pages }}">1</a></li>
{% if page_obj.has_next %}
<li class="page-item"><a class="page-link" href="/?page={{ page_obj.next_page_number }}">Next</a></li>
<li class="page-item"><a class="page-link" href="/?page={{lastpage}}">Last</a></li>
{% endif %}
</div>
I am very confused already in category views function to use parameter issue. so that I didn't use that code in pagination.html.
===== in view.py ======
from django.core.paginator import Paginator
def HomeView(request):
show_data = VehicleModel.objects.all() # Queryset For pagiantion
# Pagination code start
paginator = Paginator(show_data, 3, orphans=1)
page_number = request.GET.get('page')
show_data = paginator.get_page(page_number)
# Pagination code end
context = {'page_number':page_number}
return render(request,'dashboard.html',context)
===== in html file ======
<!-- Pagination Block with page number -->
<div class="container mt-5">
<div class="row float-right ">
<span class="m-0 p-0">
{% if carset.has_previous %} # <!-- For Previous Button -->
<a class="btn btn-outline-info" href="?page={{carset.previous_page_number}}&ok=#ok">Previous</a>
{% endif %}
<span>{% for pg in carset.paginator.page_range %} # <!-- For Page Numbers Buttons -->
{% if carset.number == pg %}
<a href="?page={{pg}}" class="btn btn-sm btn-primary">
<span class="badge">{{pg}}</span>
</a>
{% else %}
<a href="?page={{pg}}" class="btn btn-sm btn-secondary">
<span class="badge">{{pg}}</span>
</a>
{% endif %}
{% endfor %}</span>
{% if carset.has_next %} # <!-- For Next Button -->
<a class="btn btn-outline-info" href="?page={{carset.next_page_number}}&ok=#ok">Next</a>
{% endif %}
</span>
</div>
</div>
=========== Your code is like this ==============
here you passed the category parameter in the function so must pass the category title with the calling URL of this CategoryView(request, cats='category__title') function
def CategoryView(request, cats='category__title'):
category_posts = Post.objects.all()
paginator = Paginator(category_posts, 5)
with this CategoryView(request, cats='category__title') you want all Posts ???
def
CategoryView(request, cats='category__title'):
category_posts = Post.objects.filter(cats__title = cats)
paginator = Paginator(category_posts, 5)
ator = Paginator(category_posts, 5)
I have two models
class Post(models.Model):
title = models.CharField(max_length=100)
body = RichTextField(max_length=1000000)
created_at = models.DateTimeField(default=datetime.now, blank = True)
image = ResizedImageField(size=[250, 200], upload_to='img')
and
class Politics(models.Model):
title = models.CharField(max_length=100)
body = RichTextField(max_length=1000000)
created_at = models.DateTimeField(default=datetime.now, blank = True)
image = ResizedImageField(size=[250, 200], upload_to='img',blank = True)
I want to combine them both into one template view and render them on the index.html
Here is my view function
def index(request):
politics = Politics.objects.all()
return render(request,
'index.html',
{'politics':politics, 'posts': Post.objects.all()})
index.html (posts part)
<section id="posts" class="posts">
<div class="container" data-aos="fade-up">
<div class="row g-5">
{% for post in posts reversed %}
{% if forloop.counter < 5 %}
<div class="post-entry-1 col-lg-2 box mx-1">
<img src="{{post.image.url}}" class="post_img">
<div>
<div class="post-meta"><span class="date">{{post.category}}</span> <span class="mx-1">•</span> <span>{{post.created_at}}</span></div>
<h2>{{post.title}}</h2>
</div>
<p class="mb-4 d-block">{{post.body|truncatewords:75}}</p>
<div class="d-flex align-items-center author">
<div class="photo"><img src="{% static 'assets/img/person-1.jpg' %}" alt="" class="img-fluid"></div>
<div class="name">
<h3 class="m-0 p-0">OlePundit</h3>
</div>
</div>
</div>
(politics part)
<div class="row">
{% for politic in politics%}
{% if forloop.counter < 11 %}
<div class="post-entry-1 col-2 mx-1">
<img src="{{politic.image.url}}" alt="" class="post_img">
<div class="post-meta">
<span class="date">{{politic.category}}</span>
<span class="mx-1">•</span>
<span>{{politic.created_at}}</span>
</div>
<h2 class="mb-2">{{politic.title}}</h2>
<span class="author mb-3 d-block">Ole Pundit</span>
<p class="mb-4 d-block">{{politic.body| safe | truncatewords:20}}</p>
</div>
{% endif %}
{% endfor %}
</div>
However, only the 'politics' object is being rendered. What could be wrong?
try this or the problem will be in template file
def index(request):
politics = Politics.objects.all()
posts = Post.objects.all()
return render(request,
'index.html',
{'politics':politics, 'posts': posts})
I am having problems with my pagination, The number of pages i put in place (5) is not working. UnorderedObjectListWarning: Pagination may yield inconsistent results with an unordered object_list: QuerySet.
How can i change it to a class based view.
def post(request, category_slug):
categories = Category.objects.all()
post = Post.objects.all()
if category_slug:
category = get_object_or_404(Category, slug=category_slug)
posts = post.filter(category=category).order_by('-id')
page = request.GET.get('page', 1)
paginator = Paginator(posts, 6)
try:
users = paginator.page(page)
except PageNotAnInteger:
users = paginator.page(1)
except EmptyPage:
users = paginator.page(paginator.num_pages)
print(users)
context = {
'page_obj': users,
}
<nav aria-label="Page navigation example">
<ul class="pagination pagination-template d-flex justify-content-center">
{% if page_obj.has_previous %}
<li class="page-item"> <i class="fa fa-angle-left" aria-hidden="true"></i><i class="fa fa-angle-left" aria-hidden="true"></i></li>
<li class="page-item"> <i class="fa fa-angle-left" aria-hidden="true"></i></li>
{% endif %}
{% for num in page_obj.paginator.page_range %}
{% if page_obj.number == num %}
<li class="page-item">{{ num }}</li>
{% elif num > page_obj.number|add:'-3' and num < page_obj.number|add:'3' %}
<li class="page-item">{{ num }}</li>
{% endif %}
{% endfor %}
{% if page_obj.has_next %}
<li class="page-item"> <i class="fa fa-angle-right" aria-hidden="true"></i></li>
<li class="page-item"><i class="fa fa-angle-right" aria-hidden="true"></i><i class="fa fa-angle-right" aria-hidden="true"></i></li>
{% endif %}
</ul>
</nav>
The return type from filter is a QuerySet (https://docs.djangoproject.com/en/3.0/ref/models/querysets/)
The Paginator documentation (https://docs.djangoproject.com/en/3.0/ref/paginator/#django.core.paginator.Paginator) says that it expects a list for its first argument.
The QuerySet documentation says that in order to force evaluation as a list, you can call list()
Thefore:
Paginator(post.list(), 6)
i want to display an image if nothing could be found trough my searchg function.
I setup 2 serach functions. one for elasticsearch and the other one for a local search query view, anyways the one for elastic does not seems to work or at least it does not display the "not found" image if the object_list is empty, any idea?
elastic_search_function:
def globalsearch_elastic(request):
qs = request.GET.get('qs')
page = request.GET.get('page')
if qs:
qs = PostDocument.search().query("multi_match", query=qs, fields=["title", "content", "tag"])
qs = qs.to_queryset()
else:
qs = ''
paginator = Paginator(qs, 10) # Show 10 results per page
try:
qs = paginator.page(page)
except PageNotAnInteger:
qs = paginator.page(1)
except EmptyPage:
qs = paginator.page(paginator.num_pages)
return render(request, 'myproject/search/search_results_elastic.html', {'object_list':qs})
template.html
<body>
<h1 class="center">Search results <a class="fa fa-search"></a></h1>
<hr class="hr-style">
{% if object_list.count == 0 %}
<div class="search_not_found">
<img src={% static "/gfx/sys/not_found.png" %}>
<h2>Nothing found here ...</h2>
</div>
{% else %}
{% for post in object_list %}
<div class="post">
<h3><u>{{ post.title }}</u></h3>
<p>{{ post.content|safe|slice:":800"|linebreaksbr}}
{% if post.content|length > 300 %}
... more
{% endif %}</p>
<div class="date">
<a>Published by: <a href="{% url 'profile' pk=user.pk %}" >{{ post.author }}</a></a><br>
<a>Published at: {{ post.published_date }}</a><br>
<a>Category: {{ post.category }}</a><br>
<a>Tag(s): {{ post.tag }}</a><br>
<a>Comment(s): {{ post.comment_set.count }}</a>
</div>
</div>
{% endfor %}
{% endif %}
How about like this using empty:
{% for post in object_list %}
<div class="post">
<h3><u>{{ post.title }}</u></h3>
<p>{{ post.content|safe|slice:":800"|linebreaksbr}}
{% if post.content|length > 300 %}
... more
{% endif %}</p>
<div class="date">
<a>Published by: <a href="{% url 'profile' pk=user.pk %}" >{{ post.author }}</a></a><br>
<a>Published at: {{ post.published_date }}</a><br>
<a>Category: {{ post.category }}</a><br>
<a>Tag(s): {{ post.tag }}</a><br>
<a>Comment(s): {{ post.comment_set.count }}</a>
</div>
</div>
{% empty %}
<div class="search_not_found">
<img src={% static "/gfx/sys/not_found.png" %}>
<h2>Nothing found here ...</h2>
</div>
{% endfor %}