增加
-
models.类.objects.create(name=’aa’,age=18)
-
modes.类.object.create( **dic)
-
obj=modes.类(name=’张三’,age=15)
obj.save()
4.批量增加
odj_list=[
modes.类.(name=’张三’,age=15),
modes.类.(name=’张三’,age=15),
modes.类.(name=’张三’,age=15)
models.类.objects.bulk_create(obj_list,batch_size=10)
查询
1.queryset = modes.类.object.filter(name=’张三’,age=15)
-
queryset = modes.类.object.filter(name=’张三’,age=15).first()
-
queryset = modes.类.object.filter(**dic)
-
queryset = mode.类.object.filter(age=16)
5.queryset = mode.类.object.filter(age_gt=17)
6.queryset = mode.类.object.filter(age_gt=17,name=’张三’)
7.queyrset = models.类.objects.filter(name__contains=”中国”)
8.queyrset = models.类.objects.exclude(id=9) # id !=9
9.queyrset = models.类.objects.filter(age=19).order_by(“id”)
10.queyrset = models.类.objects.filter(age=19).order_by(“-id”)
11.queyrset = models.类.objects.filter(age=19).order_by(“-id”,”name”)
12.queyrset = models.类.objects.filter(age=19)[0:10]
更新
-
queryset = models.类.object.filetr(id=2).update(age=19,name=’李四’)
-
queryset = models.类.object.filetr(id=2).update(**{dic})
-
obj = models.类.objects.filter(id=2).first()
obj.name = ‘王麻子’
obj.age=14
删除
- models.类.objects.filter(id=2).delete()
Original: https://www.cnblogs.com/cl614971/p/16543165.html
Author: 陈木木啊
Title: ORM操作
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