完善统计模块及模型

models/student.py

@@ -1,27 +1,30 @@
 from core.database import Base
 from sqlalchemy import *
+from sqlalchemy.dialects.mysql import TINYINT
 from datetime import datetime
 
 class Student(Base):
-    __tablename__ = 'student_info_detail'
+    __tablename__ = 'students'
     id = Column(Integer
                 , primary_key=True
                 , autoincrement=True
                 , comment = '学生编号，自增主键'
                 )
     student_no = Column(VARCHAR(50)
-                        , unique = True)
-    student_name = Column(VARCHAR(50))
+                        , unique = True
+                        , nullable = False)
+    student_name = Column(VARCHAR(50), nullable=False)
     class_id = Column(Integer
-                      ,foreign_key = 'class_info_detail.id'
+                      ,ForeignKey('classes.id')
+                      ,nullable = False
                       )#外键约束 班级表的主键id，存在这个班级，学生表才可以输入
     consultant_id = Column(Integer
+                           ,ForeignKey('consultants.id')
                            ,nullable = True
-                           ,foreign_key = 'consultant_info_detail.id'
                            )#外键约束 顾问表的主键id，存在这个顾问，才可以写入，允许为空
     native_place = Column(VARCHAR(100)
                           ,nullable = True)
-    graduation_school = Column(VARCHAR(100)
+    graduate_school = Column(VARCHAR(100)
                                ,nullable = True)
     major = Column(VARCHAR(100)
                    ,nullable = True)
@@ -35,11 +38,17 @@ class Student(Base):
                  ,nullable = False)
     gender = Column(VARCHAR(10)
                     ,nullable = False)
-    create_at = Column(DATETIME
-                       ,default = datetime.now)
-    update_at = Column(DATETIME
+    created_at = Column(DATETIME
                        ,default = datetime.now
-                       ,onupdate = datetime.now)
-    is_deleted = Column(Integer
-                        ,default = 0)#逻辑删除，默认为0，为1则表示已删除
+                       ,server_default = text("CURRENT_TIMESTAMP")
+                       ,nullable = False)
+    updated_at = Column(DATETIME
+                       ,default = datetime.now
+                       ,onupdate = datetime.now
+                       ,server_default = text("CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP")
+                       ,nullable = False)
+    is_deleted = Column(TINYINT
+                        ,default = 0
+                        ,server_default = text("0")
+                        ,nullable = False)#逻辑删除，默认为0，为1则表示已删除