[py][mx]operation模型设计

用户表

UserMesasage   用户消息
UserFavorite   用户收藏
UserAsk        用户咨询
UserCourse     用户学习的课程
CourseComments 用户评论

收藏有3种类型

代码

from django.db import models
from datetime import datetime
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="姓名")
    mobile = models.CharField(max_length=11, verbose_name="手机号")
    course_name = models.CharField(max_length=50, verbose_name="课程名")
    add_time = models.DateTimeField(default=datetime.now, verbose_name="添加时间")

    class Meta:
        verbose_name = "用户咨询"
        verbose_name_plural = verbose_name


class CourseComments(models.Model):
    user = models.ForeignKey(UserProfile, verbose_name="用户")
    course = models.ForeignKey(Course, verbose_name="课程")
    comments = models.CharField(max_length=200, verbose_name="评论")
    add_time = models.DateTimeField(default=datetime.now, verbose_name="添加时间")

    class Meta:
        verbose_name = "课程评论"
        verbose_name_plural = verbose_name


class UserFavorite(models.Model):
    user = models.ForeignKey(UserProfile, verbose_name="用户")
    course = models.ForeignKey(Course, verbose_name="用户")
    # teacher = 可以用外键
    # org =
    # fav_type =
    fav_id = models.IntegerField(default=0, verbose_name="数据id")
    fav_type = models.IntegerField(choices=((1, "课程"), (2, "课程结构"), (3, "讲师"),), default=1, verbose_name="收藏类型")
    add_time = models.DateTimeField(default=datetime.now, verbose_name="添加时间")

    class Meta:
        verbose_name = "用户收藏"
        verbose_name_plural = verbose_name


class UserMessage(models.Model):
    # 0表示发给所有用户,  user = 非0, 发给某个用户的
    user = models.IntegerField(default=0, verbose_name="接收用户")
    message = models.CharField(max_length=500, verbose_name="消息内容")
    has_read = models.BooleanField(default=False, verbose_name="是否已读")
    add_time = models.DateTimeField(default=datetime.now, verbose_name="发送时间")

    class Meta:
        verbose_name = "用户消息"
        verbose_name_plural = verbose_name


class UserCourse(models.Model):
    user = models.ForeignKey(UserProfile, verbose_name="用户")
    course = models.ForeignKey(Course, verbose_name="用户")
    add_time = models.DateTimeField(default=datetime.now, verbose_name="添加时间")

    class Meta:
        verbose_name = "用户课程"
        verbose_name_plural = verbose_name

我把他在思路上排了下前后

# 用户消息-用户收藏-咨询-学习的课程-评论


from users.models import UserProfile
from courses.models import Course


class UserMessage(models.Model):
    # 0表示发给所有用户,  user = 非0, 发给某个用户的
    user = models.IntegerField(default=0, verbose_name="接收用户")
    message = models.CharField(max_length=500, verbose_name="消息内容")
    has_read = models.BooleanField(default=False, verbose_name="是否已读")
    add_time = models.DateTimeField(default=datetime.now, verbose_name="发送时间")

    class Meta:
        verbose_name = "用户消息"
        verbose_name_plural = verbose_name


class UserFavorite(models.Model):
    user = models.ForeignKey(UserProfile, verbose_name="用户")
    course = models.ForeignKey(Course, verbose_name="用户")
    # teacher = 可以用外键
    # org =
    # fav_type =
    fav_id = models.IntegerField(default=0, verbose_name="数据id")
    fav_type = models.IntegerField(choices=((1, "课程"), (2, "课程结构"), (3, "讲师"),), default=1, verbose_name="收藏类型")
    add_time = models.DateTimeField(default=datetime.now, verbose_name="添加时间")

    class Meta:
        verbose_name = "用户收藏"
        verbose_name_plural = verbose_name


class UserAsk(models.Model):
    name = models.CharField(max_length=20, verbose_name="姓名")
    mobile = models.CharField(max_length=11, verbose_name="手机号")
    course_name = models.CharField(max_length=50, verbose_name="课程名")
    add_time = models.DateTimeField(default=datetime.now, verbose_name="添加时间")

    class Meta:
        verbose_name = "用户咨询"
        verbose_name_plural = verbose_name


class UserCourse(models.Model):
    user = models.ForeignKey(UserProfile, verbose_name="用户")
    course = models.ForeignKey(Course, verbose_name="用户")
    add_time = models.DateTimeField(default=datetime.now, verbose_name="添加时间")

    class Meta:
        verbose_name = "用户课程"
        verbose_name_plural = verbose_name


class CourseComments(models.Model):
    user = models.ForeignKey(UserProfile, verbose_name="用户")
    course = models.ForeignKey(Course, verbose_name="课程")
    comments = models.CharField(max_length=200, verbose_name="评论")
    add_time = models.DateTimeField(default=datetime.now, verbose_name="添加时间")

    class Meta:
        verbose_name = "课程评论"
        verbose_name_plural = verbose_name

至此小结

project
app
settings设置
    zh-hans
    tz
    数据库不转

app创建
模型

1.user
    userprofile
      image
      nick_name
      gender
      brith
      mobile
      address

    banner
      name
      url
      index
      add_time
    email
      code
      email
      send_type
      send_time



模型的
    字段名显示
    class Meta: 表名显示
    class __str__: 给展示的字段
app名字显示

用户注册使用自定义表
    settings设置

courses      
    课程-章节-视频
        -课程资源附件
organization
    城市-课程机构-教师
    
类比:app名-表名-字段名字

operation

        operation(导入关系)
        |     |
UserProfile course organization
(按序)消息
收藏
咨询
学习
评论

    用户消息(应该是谁发来的)
        用户(外)(id=0和非0表示发给all,或某人)
        消息
        has_read
        时间
    收藏
        用户(外)
        课程(外)
        fav_id(1,2,3)
        fav_type(1:课程 2:培训机构 3:教师)
        时间
        
    咨询(可未登录)
        用户name
        手机
        课程(外)
        时间
    学习课程
        用户(外)
        课程(外)
        时间
    评论
        用户(外)
        课程(外)
        评论内容
        时间