python - Django REST FRAMEWORK 中的外键关系

Question

我想创建一个员工对象，其属性包括预先存在的外键(部门)。当我看到员工 api 时..我得到部门 ID 而不是部门名称.. ..请帮忙

模型.py

class Department(models.Model):
name = models.CharField(max_length= 20)
def __str__(self):
    return self.name

class 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.py

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()对于同样的。

class EmployeeSerializer(serializers.ModelSerializer):
    """ Serializer to represent the Chain model """
    <b>department = serializers.StringRelatedField()</b>
    class Meta:
        model = Employee
        fields = '__all__'

StringRelatedField may be used to represent the target of the relationship using its __unicode__ or __str__ method.

如果您希望查看与该 FK 相关的所有详细信息，请使用 depth如下

class EmployeeSerializer(serializers.ModelSerializer):
    """ Serializer to represent the Chain model """

    class Meta:
        model = Employee
        fields = '__all__'
        <b>depth = 1</b>