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model.py:
from django.db import models
# Create your models here.
class Category(models.Model):
caption = models.CharField(max_length=16)
# class ArticleType(models.Model):
# caption = models.CharField(max_length=16)
class Article(models.Model):
title = models.CharField(max_length=32)
content = models.CharField(max_length=255)
category = models.ForeignKey(Category,on_delete="")
# article_type = models.ForeignKey(ArticleType)
type_choice = (
(1,'Python'),
(2,'OpenStack'),
(3,'Linux'),
)
article_type_id = models.IntegerField(choices=type_choice)
views.py:
from django.shortcuts import render,HttpResponse,redirect
from app01 import models
# Create your views here.
def index(request):
return HttpResponse('ok')
def article(request,*args,**kwargs):
print(kwargs)
condition = {}
for k,v in kwargs.items():
kwargs[k] = int(v)
if v == '0':
pass
else:
condition[k] = v
# article_type_list = models.ArticleType.objects.all()
article_type_list = models.Article.type_choice
category_list = models.Category.objects.all()
result = models.Article.objects.filter(**condition)
return render(
request,
'article.html',
{
'result': result,
'article_type_list': article_type_list,
'category_list': category_list,
'arg_dict': kwargs
}
)
urls.py:
from django.contrib import admin
from django.urls import path
from django.urls.conf import include
urlpatterns = [
path('admin/', admin.site.urls),
path('app01/', include('app01.url')),
]
app01/url.py:
from django.urls import path,re_path
from app01 import views
urlpatterns = [
path('index/',views.index ),
re_path('article-(?P<article_type_id>\d+)-(?P<category_id>\d+).html',views.article ),
]
templatetags/filter.py(自定义simple_tag):
from django import template
from django.utils.safestring import mark_safe
register = template.Library()
@register.simple_tag
def filter_all(arg_dict,k):
"""
{% if arg_dict.article_type_id == 0 %}
<a class="active" href="/article-0-{{ arg_dict.category_id }}.html">全部</a>
{% else %}
<a href="/article-0-{{ arg_dict.category_id }}.html">全部</a>
{% endif %}
:return:
"""
if k == 'article_type_id':
n1 = arg_dict['article_type_id']
n2 = arg_dict['category_id']
if n1 == 0:
ret = '<a class="active" href="/app01/article-0-%s.html">全部</a>' % n2
else:
ret = '<a href="/app01/article-0-%s.html">全部</a>' % n2
else:
n1 = arg_dict['category_id']
n2 = arg_dict['article_type_id']
if n1 == 0:
ret = '<a class="active" href="/app01/article-%s-0.html">全部</a>' % n2
else:
ret = '<a href="/app01/article-%s-0.html">全部</a>' % n2
return mark_safe(ret)
@register.simple_tag
def filter_article_type(article_type_list,arg_dict):
"""
{% for row in article_type_list %}
{% if row.id == arg_dict.article_type_id %}
{% else %}
<a href="/article-{{ row.id }}-{{ arg_dict.category_id }}.html">{{ row.caption }}</a>
{% endif %}
{% endfor %}
:return:
"""
ret = []
for row in article_type_list:
if row[0] == arg_dict['article_type_id']:
temp = '<a class="active" href="/app01/article-%s-%s.html">%s</a>' %(row[0],arg_dict['category_id'],row[1],)
else:
temp = '<a href="/app01/article-%s-%s.html">%s</a>' %(row[0],arg_dict['category_id'],row[1],)
ret.append(temp)
return mark_safe(''.join(ret))
article.html:
{% load filter %}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title></title>
<style>
.condition a{
display: inline-block;
padding: 3px 5px;
border: 1px solid #dddddd;
margin: 5px ;
}
.condition a.active{
background-color: brown;
}
</style>
</head>
<body>
<h1>过滤条件</h1>
<div class="condition">
<div>
{% filter_all arg_dict 'article_type_id' %}
{% filter_article_type article_type_list arg_dict %}
</div>
<div>
{% filter_all arg_dict 'category_id' %}
{% for row in category_list %}
{% if row.id == arg_dict.category_id %}
<a class="active" href="/app01/article-{{ arg_dict.article_type_id }}-{{ row.id }}.html">{{ row.caption }}</a>
{% else %}
<a href="/app01/article-{{ arg_dict.article_type_id }}-{{ row.id }}.html">{{ row.caption }}</a>
{% endif %}
{% endfor %}
</div>
</div>
<h1>查询结果</h1>
<ul>
{% for row in result %}
<li>{{ row.id }}-{{ row.title }}</li>
{% endfor %}
</ul>
</body>
</html>
写在最后
本文是个人的一些学习笔记,如有侵权,请及时联系我进行删除,谢谢大家.