跟老齐学django第一章扫盲

P5

P12

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'blog', # 新增
]
LANGUAGE_CODE = 'zh-hans'

TIME_ZONE = 'Asia/Shanghai'

P18

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


class BlogArticles(models.Model):
    title = models.CharField(max_length=300)
    author = models.ForeignKey(User, on_delete=models.CASCADE, related_name='blog_posts')
    body = models.TextField()
    publish = models.DateTimeField(default=timezone.now)

    class Meta:
        ordering = ('-publish',)

    def __str__(self):
        return self.title

用户名:root，密码：root123456

P19

from django.contrib import admin
from blog.models import BlogArticles

# Register your models here.
admin.site.register(BlogArticles)

P22

from django.contrib import admin
from blog.models import BlogArticles


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)

P32

核心代码如下

mysite

settings.py

"""
Django settings for mysite project.

Generated by 'django-admin startproject' using Django 3.0.8.

For more information on this file, see
https://docs.djangoproject.com/en/3.0/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/3.0/ref/settings/
"""

import os

# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))


# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/3.0/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = 'hrfho+k-m!9uqdl8&t94d30zl_b875%&#=i#yvzwdh2_^zvkz)'

# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True

ALLOWED_HOSTS = []


# Application definition

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'blog', # 新增
]

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

ROOT_URLCONF = 'mysite.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [os.path.join(BASE_DIR, 'templates')],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

WSGI_APPLICATION = 'mysite.wsgi.application'


# Database
# https://docs.djangoproject.com/en/3.0/ref/settings/#databases

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
    }
}


# Password validation
# https://docs.djangoproject.com/en/3.0/ref/settings/#auth-password-validators

AUTH_PASSWORD_VALIDATORS = [
    {
        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
    },
]


# Internationalization
# https://docs.djangoproject.com/en/3.0/topics/i18n/

LANGUAGE_CODE = 'zh-hans'

TIME_ZONE = 'Asia/Shanghai'

USE_I18N = True

USE_L10N = True

USE_TZ = True


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/3.0/howto/static-files/

STATIC_URL = '/static/'

urls.py

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

urlpatterns = [
    path('blog/',include('blog.urls')),
    path('admin/', admin.site.urls),
]

blog

models.py

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


class BlogArticles(models.Model):
    title = models.CharField(max_length=300)
    author = models.ForeignKey(User, on_delete=models.CASCADE, related_name='blog_posts')
    body = models.TextField()
    publish = models.DateTimeField(default=timezone.now)

    class Meta:
        ordering = ('-publish',)

    def __str__(self):
        return self.title

urls.py

from django.urls import path
from blog import views

urlpatterns = [
    path('',views.blog_title),
    path('/',views.blog_article),
]

views.py

from django.shortcuts import render, get_object_or_404

from .models import BlogArticles


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


def blog_article(request, article_id):
    article = get_object_or_404(BlogArticles, id=article_id)
    pub = article.publish
    return render(request, "blog/content.html", {"article": article, "publish": pub})

templates

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="https://github.com/necolas/normalize.css/blob/master/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>
<script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.js"></script>
<script src="https://cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js"> </script>
</body>
</html>

titles.html

{% extends "base.html" %}
{% block title %}blog titles{% endblock %}
{% block content %}
<div class="row text-center vertical-middle-sm">
    <h1>我的博客</h1> 
</div>
<div class="row">
    <div class="col-xs-12 col-md-8"> 
    <ul>
    {% for blog in blogs %}
        <li><a href="{{ blog.id }}">{{ blog.title }}</a></li> 
    {% endfor %}
    </ul>
    </div>
    <div class="col-xs-6 col-md-4">
    <h2>广告</h2>
    <p>跟老齐学:www.itdiffer.com</p>
    <img width="200px" src=" https://raw.githubusercontent.com/qiwsir/DjangoPracticeProject/master/python-book2.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 col-md-8">
        <p class="text-center"><span>{{ article.author.username }} 
            </span><span style="margin-left:20px">{{ publish }}</span>
        </p>
<div>{{ article.body }}</div> 
    </div>
    <div class="col-xs-6 col-md-4"> 
        <h2>广告</h2>
        <p>跟老齐学:www.itdiffer.com</p>
        <img width="200px" src="https://raw.githubusercontent.com/qiwsir/DjangoPracticeProject/master/python-book2.png">
    </div>
</div>
{% endblock %}

希望博文对大家有所帮助！博主已经将第一章跑通！