添加注释

stu_jiuye/model.py

@@ -30,21 +30,21 @@ from datetime import datetime
 #                           )
 
 
-class Employments(Base):
-    __tablename__ = 'Employments'
-    id = Column(Integer
+class Employments(Base):                                            #学生就业信息基类
+    __tablename__ = 'Employments'                                   #表名
+    id = Column(Integer                                         #主键，自增主键
                 , primary_key=True
                 , autoincrement=True
                 # , ForeignKey='student.id'
                 , comment='自增主键'
                 )
-    stuname = Column(String(50))
-    stuclass = Column(String(50))
+    stuname = Column(String(50))                                #学生姓名，冗余字段
+    stuclass = Column(String(50))                               #学生班级，冗余字段
 
     # compname=Column(String(50)
     #                 ,nullable=False
     #                )
-    company_id = Column(Integer
+    company_id = Column(Integer                                  #公司id，外键匹配公司表
                         , ForeignKey('Company.id')
                         , nullable=False
 
@@ -53,31 +53,33 @@ class Employments(Base):
     #                     , ForeignKey('Address.id')
     #                     , nullable=False
     #                     )
-    salary = Column(Integer)
+    salary = Column(Integer)                                    #薪资
 
-    employment_open_date = Column(DATETIME)
+    employment_open_date = Column(DATETIME)                 #就业开放时间
 
-    offer_date = Column(DATETIME)
+    offer_date = Column(DATETIME)                            #offer下发时间
 
-    created_date = Column(DATETIME
+    created_date = Column(DATETIME                          #创建数据时间
                           , default=datetime.now
                           )
-    updated_date = Column(DATETIME
+    updated_date = Column(DATETIME                          #更新数据时间
                           , default=datetime.now
                           , onupdate=datetime.now
                           )
-    is_deleted = Column(Integer, default=0)
+    is_deleted = Column(Integer, default=0)                     #是否为删除信息，默认为0
 
-class Company(Base):
-    __tablename__ = 'Company'
+class Company(Base):                                                #公司信息基类
+    __tablename__ = 'Company'                                       #表名
     id = Column(Integer
                 , primary_key=True
                 ,autoincrement=True
-                )
-    compname = Column(String(50), nullable=False)
-    address_id = Column(Integer
-                        # , ForeignKey('Address.id')
-                        , nullable=False
+                )                                                   #主键id，自增主键
+    compname = Column(String(50)                                #公司姓名
+                      , nullable=False                                #非空约束
+                      )
+    address_id = Column(Integer                                 #地址id,匹配地址表
+                        , ForeignKey('Address.id')                  #外键地址表id
+                        , nullable=False                            #非空约束
                         )
     created_date = Column(DATETIME
                           , default=datetime.now
@@ -90,11 +92,11 @@ class Company(Base):
 
 class Address(Base):
     __tablename__ = 'Address'
-    id = Column(Integer
+    id = Column(Integer                                         #地址id,自增主键
                 , primary_key=True
                 ,autoincrement=True
                 )
-    somewhere=Column(String(50)
+    somewhere=Column(String(50)                                 #地址区域
                      , nullable=False
                      )
     created_date = Column(DATETIME