Many_to_many --> FieldError: Related Field got invalid lookup: contains

Question

我有两个两个模型：Doctor 和 Patient。 Doctor定义如下：

class Doctor(models.Model):
    patients = ManyToManyField('patients.Patient', related_name="%(class)ss", blank=True)

我想得到所有有特定病人的医生。我试过了：

doctors = Doctor.objects.filter(patients__contains=patient)

它似乎不起作用...有什么想法吗？

Answer 1

patients 需要整数值，不支持contains查询

尝试

patient = 1
doctors = Doctor.objects.filter(patients=patient)

或

patients = [1,2,3,4]
doctors = Doctor.objects.filter(patients__in=patients)

django