python中Django图书人物适配系统的实现方法(后台)

 python manage.py makemigrations   #相当于初始化数据库表 python manage.py migrate #相当于数据库迁移命令，这里的数据库存储都是放在db.sqlite3文件里 python manage.py createsuperuser #创建超级用户，生成db.sqlite3文件 python manage.py runserver 7899 #默认端口号：8000

# LANGUAGE_CODE = 'en-us'LANGUAGE_CODE = 'zh-hans'# TIME_ZONE = 'UTC'TIME_ZONE = 'Asia/Shanghai'

python manage.py startapp book

INSTALLED_APPS = [    'django.contrib.admin',    'django.contrib.auth',    'django.contrib.contenttypes',    'django.contrib.sessions',    'django.contrib.messages',    'django.contrib.staticfiles',    'book',]

# book/models.pyfrom django.db import models# Create your models here.class BookInfo(models.Model):    # 这里不需要写id,Django框架默认会生成id,并作为主键pk    btitle = models.CharField(max_length=100,unique=True,verbose_name='书籍标题')     # 表示在后台管理中这一栏的中文显示    bpub_time  = models.DateField(verbose_name='出版时间')    # bcontent = models.TextField(default='摘要',verbose_name='书籍摘要')    # bimg = models.ImageField(default=None,upload_to='static/uploads/')    class Meta:    ##表示这个数据库表在后台中的中文显示，因为英语区分单复数，所以需要写上单复数的中文显示        verbose_name = '书籍信息'        verbose_name_plural = '书籍信息'    def __str__(self):        return '%s' %(self.btitle)class HeroInfo(models.Model):    hname = models.CharField(max_length=50,verbose_name='人物姓名')    hgender = models.BooleanField(default=True,verbose_name='人物性别')    # 任务简介    hcontent = models.TextField(verbose_name='人物简介')    # 多的一端写外键    hbook = models.ForeignKey(BookInfo,verbose_name='所属书籍')    @property    def gender(self):        if self.hgender:            return '男'        else:            return '女'    class Meta:        verbose_name = '人物信息'        verbose_name_plural = '人物信息'    def __str__(self):        return '%s' %(self.hname)

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

python manage.py makemigrations   python manage.py migrate

python manage.py shell    #打开类似数据库交互命令的窗口

>>> from book.models import BookInfo,HeroInfo>>> from datetime import date>>> book1 = BookInfo(btitle='小王子',bpub_time=date(1942,5,13))>>> book1.save()

>>> BookInfo.objects.all()<QuerySet [<BookInfo: 小王子>]>

>>> book = BookInfo.objects.get(id=1)>>> book.btitle'小王子'

>>> book1.btitle = '安徒生童话'>>> book1.save()>>> book = BookInfo.objects.get(id=1)>>> book.btitle'安徒生童话'

>>> book = BookInfo.objects.get(id=1)>>> book.delete()(1, {'book.HeroInfo': 0, 'book.BookInfo': 1})>>> book = BookInfo.objects.all()>>>

>>> book1 = BookInfo(btitle='小王子',bpub_time=date(1942,5,13))>>> book2 = BookInfo(btitle='睡美人',bpub_time=date(1952,6,29))>>> book1.save()>>> book2.save()

>>> hero1 = HeroInfo(hname='小王子',hgender=True,hcontent='小王子没有被成人那骗人的世界所征服',hbook=book1)>>> hero1 = HeroInfo(hname='玫瑰花',hgender=False,hcontent='玫瑰花的虚荣心伤害了小王子对她的感情',hbook=book1)>>> hero1.save()>>> hero2.save()

>>> book1 = BookInfo.objects.get(id=2)>>> book1.heroinfo_set.all()<QuerySet [<HeroInfo: 玫瑰花>, <HeroInfo: 小王子>]>>>> book1.heroinfo_set.create(hname='小狐狸',hgender=True,hcontent='肉眼看不见事务的本质，只有用心灵才能洞察一切')<HeroInfo: 小狐狸>

>>> HeroInfo.objects.all()<QuerySet [<HeroInfo: 玫瑰花>, <HeroInfo: 小王子>]>

>>> book1 = BookInfo.objects.get(id=2)>>> book1.heroinfo_set.all()<QuerySet [<HeroInfo: 玫瑰花>, <HeroInfo: 小王子>]>>>>

# Database# https://docs.djangoproject.com/en/1.10/ref/settings/#databasesDATABASES = {    'default': {        # 'ENGINE': 'django.db.backends.sqlite3',        # 'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),        'ENGINE': 'django.db.backends.mysql',        'NAME': 'firstdjango',    #数据库名称，若没有的话，先在数据库中建立        'USER': 'root',        'PASSWORD': 'sheen',        'HOST': 'localhost',        'PORT': '3306',    }}

django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module: No module named 'MySQLdb'

# PycharmProjectsFristDjangoFristDjango__init__.pyimport pymysqlpymysql.install_as_MySQLdb()

 python manage.py makemigrations   python manage.py migrate

#book/adminfrom django.contrib import adminfrom book.models import BookInfo,HeroInfo# Register your models here.admin.site.register(BookInfo)admin.site.register(HeroInfo)

#book/admin.pyfrom django.contrib import adminfrom book.models import BookInfo,HeroInfo# Register your models here.class BookInfoAdmin(admin.ModelAdmin):    list_display = ['btitle','bpub_time']class HeroInfoAdmin(admin.ModelAdmin):    list_display = ['hname','hgender','hcontent','hbook']   #显示栏    list_filter = ['hbook'] #过滤器    search_fields = ['hname','hbook']   #搜索栏    list_per_page = 2   #每页显示多少条数据admin.site.register(BookInfo,BookInfoAdmin)admin.site.register(HeroInfo,HeroInfoAdmin)

# book/admin.pyclass HeroInline(admin.TabularInline):    model = HeroInfo    extra = 2   #每次增加两个添加人物的表单    class BookInfoAdmin(admin.ModelAdmin):    list_display = ['btitle','bpub_time']    inlines = [HeroInline]