"response":"strptime()argument1mustbestr,notdatetime.datetime"djangodatetime格式問題

在 Django 中，我撰寫了一個洗掉方法，在該方法中我從洗掉 API 獲取一些資料請求 請求的資料是

[
    {
      "acerage": 1,
      "batch_health": null,
      "actual_produce": null,
      "actual_yield_per_acre": null,
      "batch_id": 2583,
      "batch_status": "running",
      "commodity_id": 6,
      "commodity_variety_id": 20,
      "current_gdd": null,
      "current_pdd": null,
      "expected_delivery_date": "2022-02-15T18:30:00.000Z",
      "expected_produce": null,
      "farm_id": "1806",
      "historic_gdd": null,
      "historic_pdd": null,
      "historical_yield_per_acre": null,
      "sop_adherence": null,
      "stage": "germination",
      "start_date": "2022-02-06T18:30:00.000Z"
    }
]

我正在使用 delete 方法根據 batch_id 在我的資料庫中洗掉一行，delete 方法看起來像

    def destroy(self, request, *args, **kwargs):
        """
            This function is used to destroy batch object
        """
        try:
            instance = self.get_object()
            instance.batch_status = 'aborted'
            instance.save()
            solr_delta_import()
        except Exception as e:
            return Response({"response": str(e)}, status=status.HTTP_400_BAD_REQUEST)
        return Response({"response": "deleted successfully"}, status=status.HTTP_200_OK)

當我們運行這個函式時，該行被洗掉

我的問題是請求的資料值 start_time 和 expected_delivery_date 以字串格式出現，但由于我的模型檔案中的一些計算，我將該字串轉換為 DateTime 格式，如下所示

模型檔案看起來像

    def update_batch_median_health(self):
        if self.start_date and self.expected_delivery_date:
            if self.id:
                start_date = datetime.strptime(self.start_date, '%Y-%m-%dT%H:%M:%SZ')
                expected_delivery_date = datetime.strptime(self.expected_delivery_date, '%Y-%m-%dT%H:%M:%SZ')
            else:
                start_date = datetime.combine(self.start_date, datetime.min.time())
                expected_delivery_date = datetime.combine(self.expected_delivery_date, datetime.min.time())
            end_date = min([expected_delivery_date, datetime.today()]) - relativedelta(hours=5, minutes=30)
            hours_diff = int((((end_date - start_date).total_seconds()) / 3600 / 2))
            median_date = start_date   relativedelta(hours=hours_diff)
            
            try:
                median_crop_health = self.history.as_of(median_date).crop_health
            except:
                median_crop_health = self.batch_health
            return median_crop_health
        else:
            return None

    def update_batch_name(self):
        batch_name = "({}) {}".format(self.id, self.commodity_name)
        if self.start_date:
            if self.id:
                start_date = self.start_date.split("T")
                batch_name  = " | {}".format(start_date[0])
            else:
                batch_name  = " | {}".format(self.start_date.strftime('%Y-%m-%d'))
        return batch_name

現在 start_date 和 expected_delivery_date 格式是 DateTime

start_date = 2022-02-06 18:30:00 00:00
expected_delivery_date = 2022-02-15 18:30:00 00:00

現在，當實體由于錯誤的 start_date 和 expected_delivery_date 格式而得到錯誤的回應時，洗掉函式沒有給出正確的回應

錯誤是

"response": "strptime() argument 1 must be str, not datetime.datetime"
}

Bad Request: /api/v1/batch/2583/
[19/Feb/2022 08:01:49] "DELETE /api/v1/batch/2583/ HTTP/1.1" 400 71

如何再次將兩列轉換回字串并保存該 request_date 并可以運行洗掉函式？

uj5u.com熱心網友回復：

strptime接受一個字串并將其轉換為一個datetime.datetime物件。你不應該把 adatetime.datetime傳給它。

datetime.datetime.strptime("2021-02-19", "%Y-%m-%d")
datetime.datetime(2021, 2, 19, 0, 0)

如果您需要將 a 轉換datetime.datetime為字串，請使用strftime：

mytime = datetime.datetime(2022, 2, 19, 14, 23, 51)
mytime.strftime('%Y-%m-%dT%H:%M:%SZ')
'2022-02-19T14:23:51Z'

標籤：Python django 细绳 约会时间 时间

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