如何使用 django 序列化程序驗證大寫字段

Question

我正在編寫 API，並且在調試時注意到以下錯誤。 以下代碼不驗證狀態字段

class DocumentSalesforceSerializer(serializers.Serializer):
    AccountId = serializers.CharField(required=True)
    ContactId = serializers.CharField(required=True)
    Status = serializers.CharField(required=True)
    StartDate = serializers.CharField(required=True)
    EndDate = serializers.CharField(required=True, allow_blank=True)
    Subject = serializers.CharField(required=True)

    def validate_status(self, Status):
        if Status not in ("New", "In Progress", "On Hold", "Completed", "Closed", "Cannot Complete", "Canceled"):
            raise serializers.ValidationError("Invalid Status")
        return Status

但是，當我像這樣將“狀態”一詞更改為“狀態”時：

class DocumentSalesforceSerializer(serializers.Serializer):
    AccountId = serializers.CharField(required=True)
    ContactId = serializers.CharField(required=True)
    status = serializers.CharField(required=True)
    StartDate = serializers.CharField(required=True)
    EndDate = serializers.CharField(required=True, allow_blank=True)
    Subject = serializers.CharField(required=True)

    def validate_status(self, status):
        if status not in ("New", "In Progress", "On Hold", "Completed", "Closed", "Cannot Complete", "Canceled"):
            raise serializers.ValidationError("Invalid Status")
        return status

一切正常。 誰能告訴我為什么它會這樣工作，我該如何驗證“狀態”大寫字段？ 謝謝

Answer 1

以下代碼不驗證狀態字段。

據預計，驗證名為validate_ S tatus ，所以用一個大寫的S ，以及：

class DocumentSalesforceSerializer(serializers.Serializer):
    AccountId = serializers.CharField(required=True)
    ContactId = serializers.CharField(required=True)
    Status = serializers.CharField(required=True)
    StartDate = serializers.CharField(required=True)
    EndDate = serializers.CharField(required=True, allow_blank=True)
    Subject = serializers.CharField(required=True)

    def validate_Status(self, Status):
        if Status not in ("New", "In Progress", "On Hold", "Completed", "Closed", "Cannot Complete", "Canceled"):
            raise serializers.ValidationError("Invalid Status")
        return Status