一:表一的字段分析
class Sheep_Area(models.Model):
# models.AutoField()自增列,要显示自定义的自增列,必须定义primary=True
# area_id 这个是在数据库中存的名字,对应在浏览器显示的名字为verbose_name,这样方便阅读。 area_id = models.AutoField(primary_key=True, verbose_name='牧场编号')
# models.CharField()字符串字段,必须需要设置max_length,对应数据库中的 varchar(50),允许为空。 province = models.CharField(max_length=50,verbose_name='省份',null=True) city = models.CharField(max_length=100,verbose_name='市',null=True) district = models.CharField(max_length=50,verbose_name='区',null=True) county = models.CharField(max_length=100,verbose_name='县',null=True) town = models.CharField(max_length=100,verbose_name='乡镇',null=True)
# models.BooleanField() 布尔类型,默认值是False isdelete = models.BooleanField(default=False, verbose_name='逻辑删除') class Meta: db_table = 'sheep_area' # 数据库中的表名
# class Meta 是一个类中嵌套的抽象类,主要目的是给基类Sheep_Area提供其他的信息,基类就负责表字段的设计
db_table 就是指明基类创建表的表名,如果不指定表名,默认是 sheep_sheep_area,小写app应用名_小写模型类名
二:表二的字段分析
class Sheep_Farm(models.Model): farm_id = models.AutoField(primary_key=True, verbose_name='牧场编号') farm_name = models.CharField(max_length=100, verbose_name='牧场名称') address = models.CharField(max_length=300, verbose_name='牧场地址') username = models.CharField(max_length=100, verbose_name='用户名', null=True) phone = models.CharField(max_length=20, verbose_name='联系电话', null=True) user_id = models.IntegerField(verbose_name='用户ID')
# blank=True 针对表单的,表示表单填写字段的时候,可以为空,否则必须有值,null=True是针对数据库的。 create_date = models.DateField(default=datetime.date.strftime(datetime.date.today(), "%Y-%m-%d"),verbose_name='创建日期', blank=True) # area = models.ForeignKey(to='Sheep_Area', on_delete=models.CASCADE,null=True) isdelete = models.BooleanField(default=False, verbose_name='逻辑删除') # 外键的理解:https://blog.csdn.net/hpu_yly_bj/article/details/78939748 class Meta: db_table = 'sheep_farm'
三:表三的字段分析
class Sheep_Fold(models.Model): # 羊舍类型
# choice选择字段:用于页面上的选择框标签,需要先提供一个二维的二元元组,第一个元素表示存在数据库内真实的值,第二个表示页面上显示的具体内容
fold_choice = ( ('1', '育肥羊舍'), ('2', '泌乳羊舍'), ('3', '羔羊舍'), ('4', '后备羊舍'), ('5', '种公羊舍'), ('6', '青年母羊舍'), ('7', '成年母羊舍'), ('8', '基本母羊舍'), ('9', '待产羊舍'), ('10', '隔离舍') ) f_id = models.AutoField(primary_key=True, verbose_name='羊圈号') f_name = models.CharField(max_length=50, null=True, verbose_name='羊圈名字') f_type = models.CharField(max_length=10, choices=fold_choice, verbose_name='羊圈的类型')
# models.ForeignKey(),外键设置,关联了Sheep_Farm,表明了一对多的关系,Sheep_Farm是一,Sheep_Fold是多
# on_delete=models.CASCADE 表示层级删除,表示删除主表的数据后从表的数据也会删除。on_delete=models.SET_NULL 表示主表删除这条记录,从表将数据置空 farm = models.ForeignKey(to='Sheep_Farm', on_delete=models.CASCADE) isdelete = models.BooleanField(default=False, verbose_name='逻辑删除') class Meta: db_table = 'sheep_fold'
四:表四的字段分析
# 羊信息模型 class Sheep_Info(models.Model): # 羊品种类型 type_choice = ( ('1', '萨能奶山羊 '), ('2', '关中奶山羊'), ('3', '其他') ) # 性别 sex_choice = ( ('1', '公'), ('2', '母') ) # 级别 grade_choice = ( ('1', '特级'), ('2', '一级'), ('3', '二级') ) status_choice = ( ('0','在场'), ('1','活淘'), ('2','死亡') ) # 羊的ID s_id = models.AutoField(primary_key=True, verbose_name='羊ID号') # 羊编号/耳号 sheep_number = models.IntegerField(null=False, verbose_name='羊编号/耳号') # 设备号 equipment_number = models.CharField(max_length=20, verbose_name='设备号', null=True) # 羊品种 sheep_type = models.CharField(max_length=3, choices=type_choice, verbose_name='羊品种') # 性别 sex = models.CharField(max_length=2, choices=sex_choice, verbose_name='性别') # 出生日期' # birthday = models.CharField(max_length=20,default=datetime.date.strftime(datetime.date.today(), "%Y-%m-%d"),verbose_name='出生日期',blank=True,) birthday = models.DateField(default=datetime.date.strftime(datetime.date.today(), "%Y-%m-%d"), verbose_name='出生日期') # 初生重' birthday_weight = models.FloatField(verbose_name='初生重') # 断奶重 weaning_weight = models.FloatField(verbose_name='断奶重', blank=True, null=True) # 成年体重 weight = models.FloatField(verbose_name='体重', blank=True, null=True) # 羊的级别 grade = models.CharField(max_length=3, choices=grade_choice, verbose_name='羊的级别', blank=True) # 种公羊射精量 ejaculatory_amount = models.CharField(max_length=3, choices=grade_choice, verbose_name='射精量', blank=True,null=True) # 年均产奶量 avg_milk_year = models.FloatField(blank=True, null=True, verbose_name='年平均产奶量') # 总产量 all_milk = models.FloatField(blank=True, null=True, verbose_name='终生总产量') # 父代 father = models.CharField(blank=True, null=True, max_length=50, verbose_name='父代') # 母代 mather = models.CharField(blank=True, null=True, max_length=50, verbose_name='母代') # 羊圈外键:羊舍通过fold属性就能看到所有和自己关联的羊,也就是羊舍里面的每一头羊的信息。 fold = models.ForeignKey(to='Sheep_Fold', on_delete=models.CASCADE) # 牧场外键 farm = models.IntegerField(verbose_name='所属养场') # 羊现在的状态 sheep_status = models.CharField(max_length=3, choices=status_choice, verbose_name='羊现在的状态',default='0') # 逻辑删除 isdelete = models.BooleanField(default=False, verbose_name='逻辑删除') class Meta: db_table = 'sheep_info'
羊信息录入的前端
五:表五的字段分析
# 羊活淘的羊信息 class Sheep_Info_LiveOut(models.Model): # 羊品种类型 type_choice = ( ('1', '萨能奶山羊 '), ('2', '关中奶山羊'), ('3', '其他') ) # 性别 sex_choice = ( ('1', '公'), ('2', '母') ) # 级别 grade_choice = ( ('1', '特级'), ('2', '一级'), ('3', '二级') ) status_choice = ( ('0','在场'), ('1','活淘'), ('2','死亡') ) # 羊的ID s_id = models.AutoField(primary_key=True, verbose_name='羊ID号') # 羊编号/耳号 sheep_number = models.IntegerField(null=False, verbose_name='羊编号/耳号') # 设备号 equipment_number = models.CharField(max_length=20, verbose_name='设备号', null=True) # 羊品种 sheep_type = models.CharField(max_length=3, choices=type_choice, verbose_name='羊品种') # 性别 sex = models.CharField(max_length=2, choices=sex_choice, verbose_name='性别') # 出生日期' # birthday = models.CharField(max_length=20,default=datetime.date.strftime(datetime.date.today(), "%Y-%m-%d"),verbose_name='出生日期',blank=True,) birthday = models.DateField(default=datetime.date.strftime(datetime.date.today(), "%Y-%m-%d"), verbose_name='出生日期') # 初生重' birthday_weight = models.FloatField(verbose_name='初生重') # 断奶重 weaning_weight = models.FloatField(verbose_name='断奶重', blank=True, null=True) # 成年体重 weight = models.FloatField(verbose_name='体重', blank=True, null=True) # 羊的级别 grade = models.CharField(max_length=3, choices=grade_choice, verbose_name='羊的级别', blank=True) # 种公羊射精量 ejaculatory_amount = models.CharField(max_length=3, choices=grade_choice, verbose_name='射精量', blank=True,null=True) # 年均产奶量 avg_milk_year = models.FloatField(blank=True, null=True, verbose_name='年平均产奶量') # 总产量 all_milk = models.FloatField(blank=True, null=True, verbose_name='终生总产量') # 父代 father = models.CharField(blank=True, null=True, max_length=50, verbose_name='父代') # 母代 mather = models.CharField(blank=True, null=True, max_length=50, verbose_name='母代') # 羊圈外键 fold = models.ForeignKey(to='Sheep_Fold', on_delete=models.CASCADE) # 牧场外键 farm = models.IntegerField(verbose_name='所属养场') # 羊现在的状态 sheep_status = models.CharField(max_length=3, choices=status_choice, verbose_name='羊现在的状态',default='1') # 逻辑删除 isdelete = models.BooleanField(default=False, verbose_name='逻辑删除') class Meta: db_table = 'sheep_info_liveOut'
六:表六的字段分析
# 羊死亡的信息 class Sheep_Info_Death(models.Model): # 羊品种类型 type_choice = ( ('1', '萨能奶山羊 '), ('2', '关中奶山羊'), ('3', '其他') ) # 性别 sex_choice = ( ('1', '公'), ('2', '母') ) # 级别 grade_choice = ( ('1', '特级'), ('2', '一级'), ('3', '二级') ) status_choice = ( ('0', '在场'), ('1', '活淘'), ('2', '死亡') ) # 羊的ID s_id = models.AutoField(primary_key=True, verbose_name='羊ID号') # 羊编号/耳号 sheep_number = models.IntegerField(null=False, verbose_name='羊编号/耳号') # 设备号 equipment_number = models.CharField(max_length=20, verbose_name='设备号', null=True) # 羊品种 sheep_type = models.CharField(max_length=3, choices=type_choice, verbose_name='羊品种') # 性别 sex = models.CharField(max_length=2, choices=sex_choice, verbose_name='性别') # 出生日期' # birthday = models.CharField(max_length=20,default=datetime.date.strftime(datetime.date.today(), "%Y-%m-%d"),verbose_name='出生日期',blank=True,) birthday = models.DateField(default=datetime.date.strftime(datetime.date.today(), "%Y-%m-%d"), verbose_name='出生日期') # 初生重' birthday_weight = models.FloatField(verbose_name='初生重') # 断奶重 weaning_weight = models.FloatField(verbose_name='断奶重', blank=True, null=True) # 成年体重 weight = models.FloatField(verbose_name='体重', blank=True, null=True) # 羊的级别 grade = models.CharField(max_length=3, choices=grade_choice, verbose_name='羊的级别', blank=True) # 种公羊射精量 ejaculatory_amount = models.CharField(max_length=3, choices=grade_choice, verbose_name='射精量', blank=True, null=True) # 年均产奶量 avg_milk_year = models.FloatField(blank=True, null=True, verbose_name='年平均产奶量') # 总产量 all_milk = models.FloatField(blank=True, null=True, verbose_name='终生总产量') # 父代 father = models.CharField(blank=True, null=True, max_length=50, verbose_name='父代') # 母代 mather = models.CharField(blank=True, null=True, max_length=50, verbose_name='母代') # 羊圈外键 fold = models.ForeignKey(to='Sheep_Fold', on_delete=models.CASCADE) # 牧场外键 farm = models.IntegerField(verbose_name='所属养场') # 羊现在的状态 sheep_status = models.CharField(max_length=3, choices=status_choice, verbose_name='羊现在的状态', default='2') # 逻辑删除 isdelete = models.BooleanField(default=False, verbose_name='逻辑删除') class Meta: db_table = 'sheep_info_death'