带分页的Django过滤器 [英] Django Filter with Pagination
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问题描述
我正在尝试按照以下教程使用django过滤器进行分页，但是该教程似乎缺少一些内容，并且我无法使用基于函数的views方法来显示分页.
I'm attempting to follow the following tutorial for pagination with django filters, but the tutorial seems to be missing something, and i'm unable to get the pagination to show using the function based views method.
https://simpleisbetterthancomplex.com/tutorial/2016/08/03/how-to-paginate-with-django.html
My updated users_list.html is the following:
{% extends 'base.html' %}
{% load widget_tweaks %}
{% block content %}
<form method="get">
<div class="well">
<h4 style="margin-top: 0">Filter</h4>
<div class="row">
<div class="form-group col-sm-4 col-md-4">
<label/> 3-4 User ID
{% render_field filter.form.employeentname class="form-control" %}
</div>
<div class="form-group col-sm-4 col-md-4">
<label/> First Name
{% render_field filter.form.employeefirstname class="form-control" %}
</div>
<div class="form-group col-sm-4 col-md-4">
<label/> Last Name
{% render_field filter.form.employeelastname class="form-control" %}
</div>
<div class="form-group col-sm-4 col-md-4">
<label/> Status
{% render_field filter.form.statusid class="form-control" %}
</div>
<div class="form-group col-sm-4 col-md-4">
<label/> Title
{% render_field filter.form.positiondesc class="form-control" %}
</div>
</div>
<button type="submit" class="btn btn-primary">
<span class="glyphicon glyphicon-search"></span> Search
</button>
</div>
</form>
<form action = "{% url 'results' %}" form method = "POST">
{% csrf_token %}
<table class="table table-bordered">
{{ form.as_table }}
<thead>
<tr>
<th>3-4</th>
<th>First name</th>
<th>Last name</th>
<th>Title</th>
<th>Status</th>
<th></th>
</tr>
</thead>
<tbody>
{% for user in filter.qs %}
<tr>
<td>{{ user.employeentname }}</td>
<td>{{ user.employeefirstname }}</td>
<td>{{ user.employeelastname }}</td>
<td>{{ user.positiondesc }}</td>
<td>{{ user.statusid }}</td>
<td><input type="checkbox" name="usercheck" value = "{{user.employeentname}}" /> </td>
</tr>
{% empty %}
<tr>
<td colspan="5">No data</td>
</tr>
{% endfor %}
</tbody>
</table>
<button class="btn btn-primary" type="submit">Select User</button>
</form>
{% endblock %}
我下面的视图基于教程，但是我使用的是自己的模型:
My view below is based on the tutorial, but i'm using my own model:
def user_list(request):
user_list = Employee.objects.all()
user_filter = UserFilter(request.GET, queryset=user_list)
user_list = user_filter.qs
page = request.GET.get('page', 1)
paginator = Paginator(user_list.qs, 10)
try:
users = paginator.page(page)
except PageNotAnInteger:
users = paginator.page(1)
except EmptyPage:
users = paginator.page(paginator.num_pages)
args = {'filter':user_filter, 'users':users}
return render(request, 'user_list.html', args)
我的目录结构设置如下，也许与此有关:
My directory structure is setup as the following, perhaps its something with that:
from django import forms
from .models import Employee
import django_filters
class UserFilter(django_filters.FilterSet):
class Meta:
model = Employee
fields = ['employeentname', 'employeefirstname', 'employeelastname', 'statusid', 'positiondesc']
def __init__(self, *args, **kwargs):
super(UserFilter, self).__init__(*args, **kwargs)
# at sturtup user doen't push Submit button, and QueryDict (in data) is empty
if self.data == {}:
self.queryset = self.queryset.none()
在其中分页后添加了我的base.html:
Added my base.html after moving pagination there:
{% load static %}<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="{% static 'css/bootstrap.min.css' %}" rel="stylesheet">
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/html5shiv/3.7.3/html5shiv.min.js"></script>
<script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
<![endif]-->
<style type="text/css">
.page-header {
margin-top: 0;
}
</style>
</head>
<body>
{% include 'includes/header.html' %}
<div class="container">
{% block content %}
{% if users.has_other_pages %}
<ul class="pagination">
{% if users.has_previous %}
<li><a href="?page={{ users.previous_page_number }}">«</a></li>
{% else %}
<li class="disabled"><span>«</span></li>
{% endif %}
{% for i in users.paginator.page_range %}
{% if users.number == i %}
<li class="active"><span>{{ i }} <span class="sr-only">(current)
</span></span></li>
{% else %}
<li><a href="?page={{ i }}">{{ i }}</a></li>
{% endif %}
{% endfor %}
{% if users.has_next %}
<li><a href="?page={{ users.next_page_number }}">»</a></li>
{% else %}
<li class="disabled"><span>»</span></li>
{% endif %}
</ul>
{% endif %}
{% endblock %}
</div>
<script src="{% static 'js/jquery-3.1.1.min.js' %}"></script>
<script src="{% static 'js/bootstrap.min.js' %}"></script>
{% block javascript %}
{% endblock %}
</body>
</html>
我希望过滤器能够每10个用户对搜索结果进行分页.我现在得到的是整个用户群.过滤器正常工作，不是分页.
What i'm expecting is for my filter to paginate the search results for every 10 users. What i'm getting now is the entire set of users. The filter works correctly, it's the pagination that isn't.
推荐答案
您可以像这样分页:
注意:user_filter.qs已过滤结果，而user_filter.queryset具有未过滤结果
views.py
def search(request):
user_list = Employee.objects.all()
user_filter = UserFilter(request.GET, queryset=user_list)
user_list = user_filter.qs
paginator = Paginator(user_list, 10)
page = request.GET.get('page', 1)
try:
users = paginator.page(page)
except PageNotAnInteger:
users = paginator.page(1)
except EmptyPage:
users = paginator.page(paginator.num_pages)
args = {'paginator': paginator,'filter':user_filter,
'users':users,}
return render(request, 'search/user_list.html', args)
然后在模板中:
{% for user in users %}
<tr>
<td>{{ user.employeeusername }}</td>
<td>{{ user.employeefirstname }}</td>
<td>{{ user.employeelastname }}</td>
<td>{{ user.statusid }}</td>
<td><input type="checkbox" name="usercheck" /> </td>
</tr>
{% empty %}
<tr>
<td colspan="5">No data</td>
</tr>
{% endfor %}
</tbody>
{% if users.has_other_pages %}
<ul class="pagination">
{% if users.has_previous %}
<li><a href="?page={{ users.previous_page_number }}">«</a></li>
{% else %}
<li class="disabled"><span>«</span></li>
{% endif %}
{% for i in users.paginator.page_range %}
{% if users.number == i %}
<li class="active"><span>{{ i }} <span class="sr-only">(current)
</span></span></li>
{% else %}
<li><a href="?page={{ i }}">{{ i }}</a></li>
{% endif %}
{% endfor %}
{% if users.has_next %}
<li><a href="?page={{ users.next_page_number }}">»</a></li>
{% else %}
<li class="disabled"><span>»</span></li>
{% endif %}
</ul>
这篇关于带分页的Django过滤器的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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