day13 订单管理项目开发

1.表结构设计

1.1 abstract类

from django.db import modelsclass ActiveBaseModel(models.Model):active = models.SmallIntegerField(verbose_name="状态", default=1, choices=((1, "激活"), (0, "删除"),))class Meta:abstract = Trueclass 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 modelsclass ActiveBaseModel(models.Model):active = models.SmallIntegerField(verbose_name="状态", default=1, choices=((1, "激活"), (0, "删除"),))class Meta:abstract = Trueclass 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.titleclass 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 102  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)# 202211022123123123oid = 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_connectionconn = 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.pyADMIN = [{"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 = {11:123123,22:12312333:12312344:123123
}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

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2.7 短信登录

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2.8 动态菜单

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2.9 权限控制

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