在django原始查询中使用日期间隔时出错

我总是遇到这样的错误类型错误：在字符串格式化过程中并非所有参数都被转换

这是我的问题

State.objects.raw('...review_create_date between %s and %s group by error_type',[fromdate,todate])

此处fromdate=2011-05-21和todate='2011-05-27'

上述查询在mysql提示符下执行，但无法在python shell中运行

请找个人来帮我

这是回溯

 Traceback (most recent call last):
 File "<console>", line 1, in <module>
 File "/usr/local/lib/python2.6/dist-packages/django/db/models/query.py", line 1412, in __iter__
 query = iter(self.query)
 File "/usr/local/lib/python2.6/dist-packages/django/db/models/sql/query.py", line 73,  in __iter__
 self._execute_query()
 File "/usr/local/lib/python2.6/dist-packages/django/db/models/sql/query.py", line 87, in _execute_query
 self.cursor.execute(self.sql, self.params)
 File "/usr/local/lib/python2.6/dist-packages/django/db/backends/util.py", line 18, in execute
 sql = self.db.ops.last_executed_query(self.cursor, sql, params)
 File "/usr/local/lib/python2.6/dist-packages/django/db/backends/__init__.py", line 216, in last_executed_query
return smart_unicode(sql) % u_params
TypeError: not all arguments converted during string formatting

尝试使用？而不是视图中的%s。

django原始sql查询

我也遇到了这个问题，所以我使用 总体安排我觉得它对我有用

models.py

views.py

---

有人能帮忙吗？我尝试使用%%s和%%s%%，但得到了相同的错误尝试，…%s和%s按错误类型“%fromdate”分组，todate@JamesO：啊，不，绝对不是。@Vikram:我们需要看更多细节。实际的代码，加上实际的回溯。您是否尝试过将字符串格式化为…对象。原始的字符串“%fromdate，todate”，以防django出现内部问题？我想你也可以把完整的问题贴出来吗？用于生成随机结果

class VehicleDamage(models.Model):
    requestdate = models.DateTimeField("requestdate")
    vendor_name = models.CharField("vendor_name", max_length=50)
    class Meta:
        managed=False

def location_damageReports(request):
    #static date for testing
    date_from = '2019-11-01'
    date_to = '2019-21-01'
    vehicle_damage_reports = VehicleDamage.objects.raw("SELECT * FROM VendorReport_vehicledamage WHERE requestdate BETWEEN '{0}' AND '{1}'".format(date_from, date_to))
    damage_report = DashboardDamageReportSerializer(vehicle_damage_reports, many=True)
    data={"data": damage_report.data}
    return HttpResponse(json.dumps(data), content_type="application/json")