day13 订单管理项目开发
1.表结构设计
1.1 abstract类
from django.db import models
class ActiveBaseModel(models.Model):
active = models.SmallIntegerField(verbose_name="状态", default=1, choices=((1, "激活"), (0, "删除"),))
class Meta:
abstract = True
class Administrator(ActiveBaseModel):
""" 管理员表 """
username = models.CharField(verbose_name="用户名", max_length=32, db_index=True)
password = models.CharField(verbose_name="密码", max_length=64)
mobile = models.CharField(verbose_name="手机号", max_length=11, db_index=True)
create_date = models.DateTimeField(verbose_name="创建日期", auto_now_add=True)
1.2 自增和主键
默认：DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
class Administrator(models.Model):
""" 管理员表 """
uid = models.AutoField(verbose_name="自增", primary_key=True)
username = models.CharField(verbose_name="用户名", max_length=32, db_index=True)
password = models.CharField(verbose_name="密码", max_length=64)
mobile = models.CharField(verbose_name="手机号", max_length=11, db_index=True)
create_date = models.DateTimeField(verbose_name="创建日期", auto_now_add=True)
1.3 逻辑删除
class Administrator(ActiveBaseModel):
""" 管理员表 """
username = models.CharField(verbose_name="用户名", max_length=32, db_index=True)
password = models.CharField(verbose_name="密码", max_length=64)
mobile = models.CharField(verbose_name="手机号", max_length=11, db_index=True)
create_date = models.DateTimeField(verbose_name="创建日期", auto_now_add=True)
active = models.SmallIntegerField(verbose_name="状态", default=1, choices=((1, "激活"), (0, "删除"),))
1.4 数据库连接
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': BASE_DIR / 'db.sqlite3',
}
}
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.mysql',
'NAME': 'day06', # 数据库名字
'USER': 'root',
'PASSWORD': 'root123',
'HOST': '127.0.0.1',
'PORT': 3307,
}
}
1.5 表结构参考
from django.db import models
class ActiveBaseModel(models.Model):
active = models.SmallIntegerField(verbose_name="状态", default=1, choices=((1, "激活"), (0, "删除"),))
class Meta:
abstract = True
class Administrator(ActiveBaseModel):
""" 管理员表 """
username = models.CharField(verbose_name="用户名", max_length=32, db_index=True)
password = models.CharField(verbose_name="密码", max_length=64)
mobile = models.CharField(verbose_name="手机号", max_length=11, db_index=True)
create_date = models.DateTimeField(verbose_name="创建日期", auto_now_add=True)
class Level(ActiveBaseModel):
""" 级别表 """
title = models.CharField(verbose_name="标题", max_length=32)
percent = models.IntegerField(verbose_name="折扣", help_text="填入0-100整数表示百分比，例如：90，表示90%")
def __str__(self):
return self.title
class Customer(ActiveBaseModel):
""" 客户表 """
username = models.CharField(verbose_name="用户名", max_length=32, db_index=True)
password = models.CharField(verbose_name="密码", max_length=64)
mobile = models.CharField(verbose_name="手机号", max_length=11, db_index=True)
# mobile = models.CharField(verbose_name="手机号", max_length=11, db_index=True, validators=[RegexValidator(r'^\d{11}$', '手机号格式错误'), ], )
balance = models.DecimalField(verbose_name="账户余额", default=0, max_digits=10, decimal_places=2)
level = models.ForeignKey(verbose_name="级别", to="Level", on_delete=models.CASCADE)
# level = models.ForeignKey(verbose_name="级别", to="Level", on_delete=models.CASCADE, limit_choices_to={'active': 1})
create_date = models.DateTimeField(verbose_name="创建日期", auto_now_add=True)
creator = models.ForeignKey(verbose_name="创建者", to="Administrator", on_delete=models.CASCADE)
class PricePolicy(models.Model):
""" 价格策略（原价，后续可以根据用级别不同做不同折扣）
1 1000 10
2 2000 18
"""
count = models.IntegerField(verbose_name="数量")
price = models.DecimalField(verbose_name="价格", default=0, max_digits=10, decimal_places=2)
class Order(ActiveBaseModel):
""" 订单表 """
status_choices = (
(1, "待执行"),
(2, "正在执行"),
(3, "已完成"),
(4, "失败"),
(5, "已撤单"),
)
status = models.SmallIntegerField(verbose_name="状态", choices=status_choices, default=1)
# 202211022123123123
oid = models.CharField(verbose_name="订单号", max_length=64, unique=True)
url = models.URLField(verbose_name="视频地址", db_index=True)
count = models.IntegerField(verbose_name="数量")
price = models.DecimalField(verbose_name="价格", default=0, max_digits=10, decimal_places=2)
real_price = models.DecimalField(verbose_name="实际价格", default=0, max_digits=10, decimal_places=2)
old_view_count = models.CharField(verbose_name="原播放量", max_length=32, default="0")
create_datetime = models.DateTimeField(verbose_name="创建时间", auto_now_add=True)
customer = models.ForeignKey(verbose_name="客户", to="Customer", on_delete=models.CASCADE)
memo = models.TextField(verbose_name="备注", null=True, blank=True)
class TransactionRecord(ActiveBaseModel):
""" 交易记录 """
charge_type_class_mapping = {
1: "success",
2: "danger",
3: "default",
4: "info",
5: "primary",
}
charge_type_choices = ((1, "充值"), (2, "扣款"), (3, "创建订单"), (4, "删除订单"), (5, "撤单"),)
charge_type = models.SmallIntegerField(verbose_name="类型", choices=charge_type_choices)
customer = models.ForeignKey(verbose_name="客户", to="Customer", on_delete=models.CASCADE)
amount = models.DecimalField(verbose_name="金额", default=0, max_digits=10, decimal_places=2)
creator = models.ForeignKey(verbose_name="管理员", to="Administrator", on_delete=models.CASCADE, null=True, blank=True)
order_oid = models.CharField(verbose_name="订单号", max_length=64, null=True, blank=True, db_index=True)
create_datetime = models.DateTimeField(verbose_name="交易时间", auto_now_add=True)
memo = models.TextField(verbose_name="备注", null=True, blank=True)
2.用户认证相关
两种登录方式：
- 用户名 + 密码 登录
- 手机号 + 短信 登录
当用户登录成功后，将用户信息保存至Session【数据库 or 缓存】，不同类型用户登录 显示不同的菜单项。
2.1 发送短信
- 腾讯云短信
- 云通信短信
- 互亿无线106短信
2.2 缓存和Session
pip install django-redis
CACHES = {
"default": {
"BACKEND": "django_redis.cache.RedisCache",
"LOCATION": "redis://127.0.0.1:6379",
"OPTIONS": {
"CLIENT_CLASS": "django_redis.client.DefaultClient",
"CONNECTION_POOL_KWARGS": {"max_connections": 100}
"PASSWORD": "qwe123",
# 'MAX_ENTRIES': 300, # 最大缓存个数（默认300）
# 'CULL_FREQUENCY': 3, # 缓存到达最大个数之后，剔除缓存个数的比例，即：1/CULL_FREQUENCY（默认3）
}
}
}
############
# SESSIONS #
############
# Session存储在哪里？
# SESSION_ENGINE = "django.contrib.sessions.backends.db"
# 如果存储到文件中，文件的路径。
# SESSION_ENGINE = "django.contrib.sessions.backends.file"
# SESSION_FILE_PATH = None
# 存储到缓存
SESSION_ENGINE = "django.contrib.sessions.backends.cache"
SESSION_CACHE_ALIAS = "default"
此时也可以手动操作，将数据保存到redis中：
from django_redis import get_redis_connection
conn = get_redis_connection("default")
conn.set("xx","123123")
conn.get("xx")
2.3 动态菜单
不同角色的用户登录，看到不同的菜单。
-
页面写死 HTML模板
<html> {% if 角色 "管理员"%} <a href="/xxx/x">用户管理</a> <a href="/xxx/x">级别管理</a> <a href="/xxx/x">级别管理</a> ... {% else %} <a href="/xxx/x">xxx管理</a> <a href="/xxx/x">级别管理</a> {% endif %} </html> -
将菜单放在配置文件中 （选择）
# settings.py ADMIN = [ {"title":"用户管理", "url":"...." }, {"title":"用户管理", "url":"...." }, {"title":"用户管理", "url":"...." }, {"title":"用户管理", "url":"...." }, ] USER = [ {"title":"用户管理", "url":"...." }, {"title":"用户管理", "url":"...." }, {"title":"用户管理", "url":"...." }, {"title":"用户管理", "url":"...." }, ]<html> {% if 角色 "管理员"%} {% for item in ADMIN%} <a href="{{item.url}}">{{item.title}}</a> {%emdfor%} {% else %} {% for item in USER%} <a href="{{item.url}}">{{item.title}}</a> {%emdfor%} {% endif %} </html>
如果想要显示2级菜单：
ADMIN = [
{"title":"用户管理", "url":"...." },
{"title":"用户管理", "url":"...." },
{"title":"用户管理", "url":"...." },
{"title":"用户管理", "url":"...." },
]
ADMIN = [
{
"title":"用户管理",
"children":[
{"title":"级别列表","url":"....", "name":"level_list",}
{"title":"级别列表","url":"...."}
{"title":"级别列表","url":"...."}
]
},
{
"title":"订单管理",
"children":[
{"title":"订单列表","url":"...."}
{"title":"订单列表","url":"...."}
{"title":"订单列表","url":"...."}
]
},
]
-
菜单选中和展开
1.获取当前用户请求的 URL pricepolicy/list/ 或 url对应的name 2. pricepolicy/list/ 配置 ADMIN中的URL ->默认选中 -
路径导航的问题
1.获取当前用户请求的 URL pricepolicy/list/ 或 url对应的name 2.获取上级，展示导航信息 3.设置菜单与下级关系
2.4 权限控制
权限的判断时，要考虑：正常的点击、非法输入。
v1 = [11,22,33,44]
if 33 in v1:
pass
v1 = {11,22,33,44}
if 33 in v1:
pass
v1 = {
11:123123,
22:123123
33:123123
44:123123
}
if 33 in v1:
pass
-
文件settings.py的方式（编写）
admin_permisions = { "level_list":{...}, "level_edit":{..., 'parent':'level_list'}, "level_add":{... 'parent':'level_list'}, "level_delete":{..'parent':'level_list'.}, "user_list":{...}, "user_edit":{...}, "user_add":{...}, "user_delete":{...}, } user_permisions = { ... }admin访问某个URL + 路由信息（name、namespace），获取当前的URL /level/edit/4/ -> 是否存在URL在中间件中根据URL中的name进行权限的校验。 -
数据库的方式
2.5 local_settings.py
线上部署和本地settings.py想要隔离，可以使用local_settings.py来进行配置。
try:
from .local_settings import *
except ImportError:
pass
注意：在做版本控制提交代码时，在.gitignore中设置上 local_settings.py
2.6 用户名登录
…
2.7 短信登录
…
2.8 动态菜单
…
2.9 权限控制
…
