Django 20200407 博客开发 001

在IT行业这个发展更新速度很快的行业，只有不停止的学习，才不会被行业所淘汰。如果你是数据库学习者，那么本文《Django 20200407 博客开发 001》就很适合你！本篇内容主要包括Django 20200407 博客开发 001，希望对大家的知识积累有所帮助，助力实战开发！

我的博客开发（001）

文件结构：

from django.db import models
from django.contrib.auth.models import User


# Create your models here.
class BlogType(models.Model):
    type_name = models.CharField(max_length=15)


    def __str__(self):
        return self.type_name


class Blog(models.Model):
    title = models.CharField(max_length=50)
    blog_type = models.ForeignKey(BlogType,on_delete=models.DO_NOTHING)
    content = models.TextField()
    author = models.ForeignKey(User,on_delete=models.DO_NOTHING)
    created_time = models.DateTimeField(auto_now_add = True)
    last_updated_time = models.DateTimeField(auto_now=True)


    def __str__(self):
        return "<blog:>" % self.title</blog:>

blog/views.py

from django.shortcuts import render,get_object_or_404
from .models import Blog,BlogType




# Create your views here.
def blog_list(request):
    context = {}
    context['blogs'] = Blog.objects.all()
    # 用于统计博客数量作为一个值放在字典context中，然后其键是blogs_count
    # context['blogs_count'] = Blog.objects.all().count()
    return render(request,"blog_list.html",context)


def blog_detail(request,blog_pk):
    context = {}
    context['blog'] = get_object_or_404(Blog,pk=blog_pk)
    return render(request,"blog_detail.html",context)


def blogs_with_type(request,blog_type_pk):
    context = {}
    blog_type = get_object_or_404(BlogType,pk=blog_type_pk)
    context["blogs"] = Blog.objects.filter(blog_type=blog_type)
    context['blog_type'] = blog_type
    return render(request,'blogs_with_type.html',context)

mysite/urls.py

from django.contrib import admin
from django.urls import path,include
from blog.views import blog_list
# from ..blog.views import blog_list


urlpatterns = [
    path('',blog_list,name="home"),  # 首页
    path('admin/', admin.site.urls),
    path('blog/',include('blog.urls')),
]

blog/urls.py

from . import views
from django.urls import path


urlpatterns = [
    # http://localhost/8000/blog/1
    path('<blog_pk>', views.blog_detail, name="blog_detail"),
    # http://localhost:8000/blog/  博客列表地址


    path('type/<blog_type_pk>',views.blogs_with_type,name="blogs_with_type"),


]
</blog_type_pk></blog_pk>

blog_detail.html

    <meta charset="UTF-8">
    <title>{{blog.title}}</title>
    <div>
        <a target='_blank'  href='https://www.17golang.com/gourl/?redirect=MDAwMDAwMDAwML57hpSHp6VpkrqbYLx2eayza4KafaOkbLS3zqSBrJvPsa5_0Ia6sWuR4Juaq6t9nq6yjWOBoo6kss2oaZefrtGxnnLOgdyxo4GYgpywdpers4CNZX6AirGyt8qhjayAmrN4nJiSt7FskeB9qryGhp6zpoVl' rel='nofollow'>
            <h3>刘子君个人博客网站</h3>
        </a>
    </div>
    <h3>{{blog.title}}</h3>
    <p>作者：{{ blog.author }}</p>
    {# 这里为啥标红？另外这里年月日时分秒和Python的datetime中有点不一样，在分钟那html用n表示！H表示24进制小时，h表示12进制 #}
    <p>发表日期：{{ blog.created_time|date:"Y-m-d H:n:s" }}</p>
    <p>分类：<a target='_blank'  href='https://www.17golang.com/gourl/?redirect=MDAwMDAwMDAwML57hpSHp6VpkrqbYLx2eayza4KafaOkbLS3zqSBrJvPsa5_0Ia6sWuR4Juaq6t9nq6yjWOBoo6kss2oaZefrtGxnnLOgdyxo4GYgpywdpers4CNZX6AirGyt8qhjayAmrN4nJiSt7FskeB9qryGhp6zpoVl' rel='nofollow'>{{ blog.blog_type }}
    </a></p>
    <p>{{blog.content}}</p>

blog_list.html

    <meta charset="UTF-8">
    <title>刘子君的博客</title>
        <div>
        <a target='_blank'  href='https://www.17golang.com/gourl/?redirect=MDAwMDAwMDAwML57hpSHp6VpkrqbYLx2eayza4KafaOkbLS3zqSBrJvPsa5_0Ia6sWuR4Juaq6t9nq6yjWOBoo6kss2oaZefrtGxnnLOgdyxo4GYgpywdpers4CNZX6AirGyt8qhjayAmrN4nJiSt7FskeB9qryGhp6zpoVl' rel='nofollow'>
            <h3>刘子君个人博客网站</h3>
        </a>
    </div>
    <hr>


    {% for blog in blogs %}
{#        <a target='_blank'  href='https://www.17golang.com/gourl/?redirect=MDAwMDAwMDAwML57hpSHp6VpkrqbYLx2eayza4KafaOkbLS3zqSBrJvPsa5_0Ia6sWuR4Juaq6t9nq6yjWOBoo6xsqa7pIGceZbHoajQhc2lo4HffZqrZIKgs32fp36Ajm2zqrexgYabzr2uepmHp89tkrp9Y7usfa6_jY6afqaGbQ' rel='nofollow'>#}
            </a><a target='_blank'  href='https://www.17golang.com/gourl/?redirect=MDAwMDAwMDAwML57hpSHp6VpkrqbYLx2eayza4KafaOkbLS3zqSBrJvPsa5_0Ia6sWuR4Juaq6t9nq6yjWOBoo6kss2oaZefrtGxnnLOgdyxo4GYgpywdpers4CNZX6AirGyt8qhjayAmrN4nJiSt7FskeB9qryGhp6zpoVl' rel='nofollow'>
            <h3>{{blog.title}}</h3>
        </a>
{#            管道符表示过滤，这句话意思是对blogcontent中的内容过滤，只剩30字符显示，这里不知为啥起作用了但pycharm识别为错误#}
            <p>{{ blog.content|truncatechars:30 }}</p>
        {% empty %}
            <p>----- 敬请期待，暂无博文 -----</p>
    {% endfor %}
        {#        <p>一共有{{ blogs|length }}篇博文</p> {{ blogs_count }} {#        用于统计blogs中又多少条博文#}
        <p>一共有{{ blogs|length }}篇博文</p>

blogs_with_type.html

    <meta charset="UTF-8">
    <title>刘子君的博客</title>
        <div>
        <a target='_blank'  href='https://www.17golang.com/gourl/?redirect=MDAwMDAwMDAwML57hpSHp6VpkrqbYLx2eayza4KafaOkbLS3zqSBrJvPsa5_0Ia6sWuR4Juaq6t9nq6yjWOBoo6kss2oaZefrtGxnnLOgdyxo4GYgpywdpers4CNZX6AirGyt8qhjayAmrN4nJiSt7FskeB9qryGhp6zpoVl' rel='nofollow'>
            <h3>刘子君个人博客网站</h3>
        </a>
    </div>
    <hr>


    {% for blog in blogs %}
{#        <a target='_blank'  href='https://www.17golang.com/gourl/?redirect=MDAwMDAwMDAwML57hpSHp6VpkrqbYLx2eayza4KafaOkbLS3zqSBrJvPsa5_0Ia6sWuR4Juaq6t9nq6yjWOBoo6xsqa7pIGceZbHoajQhc2lo4HffZqrZIKgs32fp36Ajm2zqrexgYabzr2uepmHp89tkrp9Y7usfa6_jY6afqaGbQ' rel='nofollow'>#}
            </a><a target='_blank'  href='https://www.17golang.com/gourl/?redirect=MDAwMDAwMDAwML57hpSHp6VpkrqbYLx2eayza4KafaOkbLS3zqSBrJvPsa5_0Ia6sWuR4Juaq6t9nq6yjWOBoo6kss2oaZefrtGxnnLOgdyxo4GYgpywdpers4CNZX6AirGyt8qhjayAmrN4nJiSt7FskeB9qryGhp6zpoVl' rel='nofollow'>
            <h3>{{blog.title}}</h3>
        </a>
{#            管道符表示过滤，这句话意思是对blogcontent中的内容过滤，只剩30字符显示，这里不知为啥起作用了但pycharm识别为错误#}
            <p>{{ blog.content|truncatechars:30 }}</p>
        {% empty %}
            <p>----- 敬请期待，暂无博文 -----</p>
    {% endfor %}
        {#        <p>一共有{{ blogs|length }}篇博文</p> {{ blogs_count }} {#        用于统计blogs中又多少条博文#}
        <p>一共有{{ blogs|length }}篇博文</p>

答疑：

# blog_list.html

<a target='_blank'  href='https://www.17golang.com/gourl/?redirect=MDAwMDAwMDAwML57hpSHp6VpkrqbYLx2eayza4KafaOkbLS3zqSBrJvPsa5_0Ia6sWuR4Juaq6t9nq6yjWOBoo6kss2oaZefrtGxnnLOgdyxo4GYgpywdpers4CNZX6AirGyt8qhjayAmrN4nJiSt7FskeB9qryGhp6zpoVl' rel='nofollow'></a>

{#            管道符表示过滤，这句话意思是对blogcontent中的内容过滤，只剩30字符显示，这里不知为啥起作用了但pycharm识别为错误#}
            <p>{{ blog.content|truncatechars:30 }}</p>

今天关于《Django 20200407 博客开发 001》的内容就介绍到这里了，是不是学起来一目了然！想要了解更多关于mysql的内容请关注golang学习网公众号！