Django REST FRAMEWORK中的外键关系

Question

我想创建一个雇员对象，其属性包括预先存在的外键（部门）。当我看到雇员api ..我正在获取部门ID而不是部门名称....请帮助models.pyclass Department(models.Model):name = models.CharField(max_length= 20)def __str__(self):    return self.nameclass Employee(models.Model):employee_name = models.CharField(max_length= 20)surname = models.CharField(max_length= 20)address = models.CharField(max_length  = 50)qualification = models.CharField(max_length = 30)contact_num = PhoneNumberField()department = models.ForeignKey(Department, on_delete=models.PROTECT)def __str__(self):    return self.employee_name序列化class DepartmentSerializer(serializers.ModelSerializer):""" Serializer to represent the Chain model """    class Meta:        model = Department        fields = '__all__'class EmployeeSerializer(serializers.ModelSerializer):    """ Serializer to represent the Chain model """    class Meta:        model = Employee        fields = '__all__'

Answer 1

您可以使用StringRelatedField()相同的。

class EmployeeSerializer(serializers.ModelSerializer):

    """ Serializer to represent the Chain model """

    department = serializers.StringRelatedField()

    class Meta:

        model = Employee

        fields = '__all__'

StringRelatedField可以用来表示关系的目标（使用__unicode__或__str__方法）。

如果您希望查看与该FK相关的所有详细信息，请depth按以下方式使用

class EmployeeSerializer(serializers.ModelSerializer):

    """ Serializer to represent the Chain model """

    class Meta:

        model = Employee

        fields = '__all__'

        depth = 1