第2章 windows下搭建开发环境
- 介绍项目开发需要安装的开发软件、 python虚拟virtualenv和 virtualenvwrapper的安装和使用、 最后介绍pycharm和navicat的简单使用
2.2
- 安装virtualenvwrapper
pip install virtualenvwrapper-win
- 退出虚拟环境deactivate
第3章 通过留言版功能回顾django基础知识
- 通过django简单实现一个留言板功能来回顾django的基础知识, 包括settings的配置、 url配置、 view逻辑、 model设计和templates的显示
第4章 需求分析和model设计
- 对系统进行需求分析, 然后设计出django app, 然后对每个app设计相应的django model数据表。系统共有四个app, users处理用户相关;courses处理课程相关;organization处理课程机构相关;operation处理用户操作相关
- 更改数据库
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': "mxonline",
'USER': 'root',
'PASSWORD': "root",
'HOST': "127.0.0.1"
}
}
- 扩展Django自带的用户表,自定义自己的用户表.
- 输入命令行有两种方式.
-
tools-run manage.py Task
manage.png
在就是manage.py目录下输入全命令
manage.py runserver
2.更改MxOnline/users/models.py
# _*_ encoding:utf-8 _*_
from __future__ import unicode_literals
from datetime import datetime
from django.db import models
from django.contrib.auth.models import AbstractUser
# Create your models here.
class UserProfile(AbstractUser):
nick_name = models.CharField(max_length=50, verbose_name=u"昵称", default="")
birday = models.DateField(verbose_name=u"生日", null=True, blank=True)
gender = models.CharField(max_length=6, choices=(("male", u"男"), ("female", "女")), default="female")
address = models.CharField(max_length=100, default=u"")
mobile = models.CharField(max_length=11, null=True, blank=True)
image = models.ImageField(upload_to="image/%Y/%m", default=u"image/default.png", max_length=100)
class Meta:
verbose_name = "用户信息"
verbose_name_plural = verbose_name
def __unicode__(self):
return self.username
3.setting注册app.在MxOnline中
Django允许你通过修改setting.py文件中的 AUTH_USER_MODEL 设置覆盖默认的User模型,其值引用一个自定义的模型。
AUTH_USER_MODEL = "users.UserProfile"
上面的值表示Django应用的名称(必须位于INSTALLLED_APPS中)和你想使用的User模型的名称。
4-3setting.png- ImageFiel需要安装pillow
pip install pillow
- run-MxOnline
提示
运行makemigrations users,下面是提示成功.
makemigrations.png
4-4
- 避免相互引用设计数据库
- 更改MxOnline/users/models.py,增加EmailVerifyRecord,Banner类.
class EmailVerifyRecord(models.Model):
code = models.CharField(max_length=20, verbose_name=u"验证码")
email = models.EmailField(max_length=50, verbose_name=u"邮箱")
send_type = models.CharField(verbose_name=u"验证码类型", choices=(("register",u"注册"),("forget",u"找回密码"), ("update_email",u"修改邮箱")), max_length=30)
send_time = models.DateTimeField(verbose_name=u"发送时间", default=datetime.now)
class Meta:
verbose_name = u"邮箱验证码"
verbose_name_plural = verbose_name
def __unicode__(self):
return '{0}({1})'.format(self.code, self.email)
class Banner(models.Model):
title = models.CharField(max_length=100, verbose_name=u"标题")
image = models.ImageField(upload_to="banner/%Y/%m", verbose_name=u"轮播图", max_length=100)
url = models.URLField(max_length=200, verbose_name=u"访问地址")
index = models.IntegerField(default=100, verbose_name=u"顺序")
add_time = models.DateTimeField(default=datetime.now, verbose_name=u"添加时间")
class Meta:
verbose_name = u"轮播图"
verbose_name_plural = verbose_name
引包区域,1区python自带,2区,第三方包.3区,自己写的包.
4-5 courses
- 新增app, courses
- 更改models.py
# _*_ encoding:utf-8 _*_
from __future__ import unicode_literals
from datetime import datetime
from django.db import models
# Create your models here.
class Course(models.Model):
name = models.CharField(max_length=50, verbose_name=u"课程名")
desc = models.CharField(max_length=300, verbose_name=u"课程描述")
detail = models.TextField(verbose_name=u"课程详情")
degree = models.CharField(verbose_name=u"难度", choices=(("cj","初级"), ("zj","中级"), ("gj","高级")), max_length=2)
learn_times = models.IntegerField(default=0, verbose_name=u"学习时长(分钟数)")
students = models.IntegerField(default=0, verbose_name=u'学习人数')
fav_nums = models.IntegerField(default=0, verbose_name=u'收藏人数')
image = models.ImageField(upload_to="courses/%Y/%m", verbose_name=u"封面图", max_length=100)
click_nums = models.IntegerField(default=0, verbose_name=u"点击数")
add_time = models.DateTimeField(default=datetime.now, verbose_name=u"添加时间")
class Meta:
verbose_name = u"课程"
verbose_name_plural = verbose_name
def __unicode__(self):
return self.name
class Lesson(models.Model):
course = models.ForeignKey(Course, verbose_name=u"课程")
name = models.CharField(max_length=100, verbose_name=u"章节名")
add_time = models.DateTimeField(default=datetime.now, verbose_name=u"添加时间")
class Meta:
verbose_name = u"章节"
verbose_name_plural = verbose_name
def __unicode__(self):
return self.name
class Video(models.Model):
lesson = models.ForeignKey(Lesson, verbose_name=u"章节")
name = models.CharField(max_length=100, verbose_name=u"视频名")
add_time = models.DateTimeField(default=datetime.now, verbose_name=u"添加时间")
class Meta:
verbose_name = u"视频"
verbose_name_plural = verbose_name
def __unicode__(self):
return self.name
class CourseResource(models.Model):
course = models.ForeignKey(Course, verbose_name=u"课程")
name = models.CharField(max_length=100, verbose_name=u"名称")
download = models.FileField(upload_to="course/resource/%Y/%m", verbose_name=u"资源文件", max_length=100)
add_time = models.DateTimeField(default=datetime.now, verbose_name=u"添加时间")
class Meta:
verbose_name = u"课程资源"
verbose_name_plural = verbose_name
4-6
微信截图_20171124134942.png# _*_ encoding:utf-8 _*_
from __future__ import unicode_literals
from datetime import datetime
from django.db import models
# Create your models here.
class CityDict(models.Model):
name = models.CharField(max_length=20, verbose_name=u"城市")
desc = models.CharField(max_length=200, verbose_name=u"描述")
add_time = models.DateTimeField(default=datetime.now)
class Meta:
verbose_name = u"城市"
verbose_name_plural = verbose_name
def __unicode__(self):
return self.name
class CourseOrg(models.Model):
name = models.CharField(max_length=50, verbose_name=u"机构名称")
desc = models.TextField(verbose_name=u"机构描述")
click_nums = models.IntegerField(default=0, verbose_name=u"点击数")
fav_nums = models.IntegerField(default=0, verbose_name=u"收藏数")
image = models.ImageField(upload_to="org/%Y/%m", verbose_name=u"logo", max_length=100)
address = models.CharField(max_length=150, verbose_name=u"机构地址")
city = models.ForeignKey(CityDict, verbose_name=u"所在城市")
add_time = models.DateTimeField(default=datetime.now)
class Meta:
verbose_name = u"课程机构"
verbose_name_plural = verbose_name
def __unicode__(self):
return self.name
class Teacher(models.Model):
org = models.ForeignKey(CourseOrg, verbose_name=u"所属机构")
name = models.CharField(max_length=50, verbose_name=u"教师名")
work_years = models.IntegerField(default=0, verbose_name=u"工作年限")
work_company = models.CharField(max_length=50, verbose_name=u"就职公司")
work_position = models.CharField(max_length=50, verbose_name=u"公司职位")
points = models.CharField(max_length=50, verbose_name=u"教学特点")
click_nums = models.IntegerField(default=0, verbose_name=u"点击数")
fav_nums = models.IntegerField(default=0, verbose_name=u"收藏数")
age = models.IntegerField(default=18, verbose_name=u"年龄")
image = models.ImageField(default='', upload_to="teacher/%Y/%m", verbose_name=u"头像", max_length=100)
add_time = models.DateTimeField(default=datetime.now)
class Meta:
verbose_name = u"教师"
verbose_name_plural = verbose_name
def __unicode__(self):
return self.name
4-7 operation models.py设计
微信截图_20171124140937.png- 创建startapp
# _*_ encoding:utf-8 _*_
from __future__ import unicode_literals
from datetime import datetime
from django.db import models
from users.models import UserProfile
from courses.models import Course
# Create your models here.
class UserAsk(models.Model):
name = models.CharField(max_length=20, verbose_name=u"姓名")
mobile = models.CharField(max_length=11, verbose_name=u"手机")
course_name = models.CharField(max_length=50, verbose_name=u"课程名")
add_time = models.DateTimeField(default=datetime.now, verbose_name=u"添加时间")
class Meta:
verbose_name = u"用户咨询"
verbose_name_plural = verbose_name
class CourseComments(models.Model):
"课程评论"
user = models.ForeignKey(UserProfile, verbose_name=u"用户")
course = models.ForeignKey(Course, verbose_name=u"课程")
comments = models.CharField(max_length=200, verbose_name=u"评论")
add_time = models.DateTimeField(default=datetime.now, verbose_name=u"添加时间")
class Meta:
verbose_name = u"课程评论"
verbose_name_plural = verbose_name
class UserFavorite(models.Model):
user = models.ForeignKey(UserProfile, verbose_name=u"用户")
fav_id = models.IntegerField(default=0, verbose_name=u"数据id")
fav_type = models.IntegerField(choices=((1,"课程"),(2,"课程机构"),(3,"讲师")), default=1, verbose_name=u"收藏类型")
add_time = models.DateTimeField(default=datetime.now, verbose_name=u"添加时间")
class Meta:
verbose_name = u"用户收藏"
verbose_name_plural = verbose_name
class UserMessage(models.Model):
user = models.IntegerField(default=0, verbose_name=u"接收用户")
message = models.CharField(max_length=500, verbose_name=u"消息内容")
has_read = models.BooleanField(default=False, verbose_name=u"是否已读")
add_time = models.DateTimeField(default=datetime.now, verbose_name=u"添加时间")
class Meta:
verbose_name = u"用户消息"
verbose_name_plural = verbose_name
class UserCourse(models.Model):
user = models.ForeignKey(UserProfile, verbose_name=u"用户")
course = models.ForeignKey(Course, verbose_name=u"课程")
add_time = models.DateTimeField(default=datetime.now, verbose_name=u"添加时间")
class Meta:
verbose_name = u"用户课程"
verbose_name_plural = verbose_name
- setting,注册app
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'users',
'courses',
'operation',
'organization',
]
4-8
sourch root
命令行会报错,在setting中设置
import sys
# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
sys.path.insert(0, os.path.join(BASE_DIR, 'apps'))
欠2图.
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