百慕大草种子的发芽期是多少天?

小说:百慕大草种子的发芽期是多少天?作者:戏徒龙辛更新时间:2019-05-26字数:19963

  上篇django初探-创建简单的博客系统(一)已经记录了Django实现博客的发布的整个过程,接下来继续说明博客标题和内容的显示。

显示博客信息

  将博客内容保存到数据库还不是发布博客的终极目的,博客一定要显示出来,显示博客信息的基本知识如下图:

  

显示文章标题

获取数据

  当我们在./blog/models.py中创建了数据模型后,Django就会自动提供数据库抽象的API,通过API可以创建、获取、修改或删除对象

  我们可以使用交互模式进行测试

  python manage.py shell

  

  对BlogArticles类可以进行类似操作

  

添加模板

  在/blog下templates文件夹,在templates文件夹下添加base.html、titile.html和content.html三个文件

  base.html

<!DOCTYPE html>
<html lang="zh-cn">
    <head>
        <meta http-equiv="X-UA_compatible" content="IE=Edge">
        <meta charset="utf-8">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <title>
            {%block title%}
            {%endblock%}
        </title>
        <link rel="stylesheet" href="http://necolas.github.io/normalize.css/">
        <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css">
    </head>
    <body>
        <div class="container">
            {%block content%}
            {%endblock%}
        </div>
        <scripy src="https://cdn.bootcss.com/jquery/3.2.1/jquery.js"></scripy>
        <scripy src="https://cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js"></scripy>
    </body>
</html>

  titles.html

{%extends "base.html"%}

{%block title%}blog titles{%endblock%}

{%block content%}
<div class="row text-center vertical-middle-sm">
    <h1>小兵千睿</h1>
</div>
<div class="row">
    <div class="col-xs-12 c0l-md-8">
        <ul>
            {%for blog in blogs%}
                <li><a href="{{blog.id}}">{{blog.title}}</a></li> <!--双层花括号表示此处显示变量引用的数据-->                
            {%endfor%}
        </ul>
    </div>
    <div class="col-xs-6 col-md-4">
        <h2>show time</h2>
        <img width="200px" src="http://images.cnblogs.com/cnblogs_com/xiaobingqianrui/1185116/o_Image%201.png">
    </div>
</div>
{%endblock%}

  content.html

{%extends "base.html"%}

{%block title%}blog article{%endblock%}

{%block content%}
<div class="row text-center vertical-middle-sm">
    <h1>{{article.title}}</h1>
</div>
<div class="row">
    <div class="col-xs-12 c0l-md-8">
        <p class="text-center"><span>{{article.author}}</span>
        <span style="margin-left:20px">{{publish}}</span></p>
        <div>{{article.body}}</div>
    </div>
    <div class="col-xs-6 col-md-4">
        <h2>show time</h2>
        <img width="200px" src="http://images.cnblogs.com/cnblogs_com/xiaobingqianrui/1185116/o_Image%201.png">
    </div>
</div>
{%endblock%}

添加视图函数

  /blog/view.py中添加相应代码

from django.shortcuts import render

# Create your views here.
from .models import BlogArticles
from django.shortcuts import render

def blog_title(request):
    blogs = BlogArticles.objects.all()
    return render(request, "titles.html", {"blos":blogs})

def blog_article(request, articls_id):
    article = BlogArticles.objects.get(id=articls_id)
    pub = article.publish
    return render(request, "content.html", {"article":article, "publish":pub})

添加应用URL

  1. /xbqr/urls.py中添加代码

from django.contrib import admin
from django.urls import path
from django.conf.urls import url,include

urlpatterns = [
    path("admin/", admin.site.urls),
    url(r"^blog/", include(("blog.urls","blog"),namespace="blog")),
]

  2. 在/blog/目录下新建urls.py文件,添加如下代码

from django.conf.urls import url
from . import views

urlpatterns = [url(r"^$", views.blog_title, name="blog_title"),
                url(r"(?P<article_id>d)/$", views.blog_article, name="blog_detail"),]

显示文章内容

  显示文章内容代码在views.py中已添加

def blog_article(request, articls_id):
    article = BlogArticles.objects.get(id=articls_id)
    pub = article.publish
    return render(request, "content.html", {"article":article, "publish":pub})

  启动服务器:python manage.py runserver

  打开http://127.0.0.1:8000/blog/

  

  点击标题查看文章内容

  

设置文章列表页

  到目前为止,博客标题和内容的显示就完成了,附加添加如何设置发布博客页面的文章列表页

  

  这样显示太过于单一,为了让其显示的更加丰富,可以在/blog/admin.py文件中添加如下代码:

from django.contrib import admin

from .models import BlogArticles
# Register your models here.

class BlogArticlesAdmin(admin.ModelAdmin):
    list_display = ("title", "author", "publish")
    list_filter = ("publish", "author")
    search_fields = ("title", "body")
    raw_id_fields = ("author",)
    date_hierarchy = "publish"
    ordering=["publish","author"]

admin.site.register(BlogArticles, BlogArticlesAdmin)  

  刷新页面:

 

当前文章:http://cnsdbtzg.com/pzpqa.html

发布时间:2019-05-26 03:17:43

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