Question

我是Django＆Python的新手。（以前是PHP）。我想在没有DB盲目的情况下归档自定义模型时遇到问题。该模型的数据来自原始SQL。

我试图找出如何从rawsql获取数据，然后将其插入Object的方法。我发现本文Model Manager看起来很有希望。

尝试＆错误后。我收到以下错误：

环境：

请求方法：GET请求URL：http://127.0.0.1:8000/a/something

Django版本：2.1.5 Python版本：3.7.2已安装的应用程序：   ['django.contrib.admin'，'django.contrib.auth'，   'django.contrib.contenttypes'，'django.contrib.sessions'，   'django.contrib.messages'，'django.contrib.staticfiles'，   'rest_framework'，'rest_framework.authtoken'，'phonenumber_field'，   'user_accounts'，'shipments'，'CA'，'rest_auth'，   'rest_auth.registration'，'allauth'，'allauth.account'，   'django.contrib.sites'，'allauth.socialaccount'，'dashboard']   已安装的中间件：   ['django.middleware.security.SecurityMiddleware'，   'django.contrib.sessions.middleware.SessionMiddleware'，   'django.middleware.common.CommonMiddleware'，   'django.middleware.csrf.CsrfViewMiddleware'，   'django.contrib.auth.middleware.AuthenticationMiddleware'，   'django.contrib.messages.middleware.MessageMiddleware'，   'django.middleware.clickjacking.XFrameOptionsMiddleware']

跟踪：

文件   “ C：\ Users \ myfxhuta \ AppData \ Local \ Programs \ Python \ Python37-32 \ lib \ site-packages \ django \ core \ handlers \ exception.py”   在内部     34. response = get_response（request）

文件   “ C：\ Users \ myfxhuta \ AppData \ Local \ Programs \ Python \ Python37-32 \ lib \ site-packages \ django \ core \ handlers \ base.py”   在_get_response中     126. response = self.process_exception_by_middleware（e，request）

文件   “ C：\ Users \ myfxhuta \ AppData \ Local \ Programs \ Python \ Python37-32 \ lib \ site-packages \ django \ core \ handlers \ base.py”   在_get_response中     124. response = wrapd_callback（request，* callback_args，** callback_kwargs）

文件   “ C：\ Users \ myfxhuta \ AppData \ Local \ Programs \ Python \ Python37-32 \ lib \ site-packages \ django \ views \ decorators \ csrf.py”   在wrapped_view中     54. return view_func（* args，** kwargs）

文件   “ C：\ Users \ myfxhuta \ AppData \ Local \ Programs \ Python \ Python37-32 \ lib \ site-packages \ django \ views \ generic \ base.py”   鉴于     68. return self.dispatch（request，* args，** kwargs）

文件   “ C：\ Users \ myfxhuta \ AppData \ Local \ Programs \ Python \ Python37-32 \ lib \ site-packages \ rest_framework \ views.py”   在派遣中     495. response = self.handle_exception（exc）

文件   “ C：\ Users \ myfxhuta \ AppData \ Local \ Programs \ Python \ Python37-32 \ lib \ site-packages \ rest_framework \ views.py”   在handle_exception中     455. self.raise_uncaught_exception（exc）

文件   “ C：\ Users \ myfxhuta \ AppData \ Local \ Programs \ Python \ Python37-32 \ lib \ site-packages \ rest_framework \ views.py”   在派遣中     492. response = handler（request，* args，** kwargs）

文件   “ C：\ Users \ myfxhuta \ Documents \ Coding \ python-testing \ CA \ dashboard \ views.py”   在得到     23.“数据”：consignment_status.objects.with_counts（）

文件   “ C：\ Users \ myfxhuta \ Documents \ Coding \ python-testing \ CA \ dashboard \ models.py”   在with_counts中     22. p = self.model（consignmentNo = row [0]，status = row 1，created_time = row [2]）

文件   “ C：\ Users \ myfxhuta \ AppData \ Local \ Programs \ Python \ Python37-32 \ lib \ site-packages \ django \ db \ models \ base.py”   在初始化中     485.raise TypeError（“'％s'是该函数的无效关键字参数”％kwarg）

异常类型：/ a / something处的TypeError异常值：'status'为   此函数的关键字参数无效

这是我的 models.py

from django.db import models


class list_consignment(models.Manager):


def with_counts(self):
    import pyodbc
    cnxn = pyodbc.connect('Driver={SQL Server};Server=127.0.0.1;Database=TEST;uid=USERID;pwd=PASSWORD;')
    cursor = cnxn.cursor() 

    with cnxn.cursor()  as cursor:

        cursor.execute("""select t.ConsignmentNo, case when t2.TaskId = '50' then t2.TaskName when t2.TaskId IS NULL then 'NEW' else 'PENDING' end as 'status', case when t2.TaskId IS NOT NULL then t2.ActEnd else t.CreateDate end as created_time from ( select ConsignmentNo,JobEntry.CreateDate,JobEntry.JobStatus, max(ActEnd) as lastes_time from JobEntry left join jobTracking on JobEntry.JobNo = jobTracking.JobNo and JobEntry.companyid=jobTracking.companyid where JobEntry.companyid = 40 and JobEntry.CustomerCode = 'A000177' and ConsignmentNo like '%' and CAST(JobEntry.CreateDate as date) >= CAST(getdate()-1 as date) and JobEntry.iscancel = 0 group by ConsignmentNo, JobEntry.CreateDate,JobEntry.JobStatus ) t left Join ( select ConsignmentNo,JobEntry.CreateDate as jcreate_date, jobTracking.* from JobEntry left join jobTracking on JobEntry.JobNo = jobTracking.JobNo and JobEntry.companyid=jobTracking.companyid where JobEntry.companyid = 40 and JobEntry.BranchId = 40 and CAST(JobEntry.CreateDate as date) >= CAST(getdate()-1 as date) and JobEntry.CustomerCode = 'A000177' and ConsignmentNo like '%' )t2 on t.ConsignmentNo = t2.ConsignmentNo and t.lastes_time = t2.ActEnd and t.CreateDate = t2.jcreate_date order by status, ConsignmentNo""")
        result_list = []
        for row in cursor.fetchall():
            p = self.model(consignmentNo=row[0], status=row[1], created_time=row[2])

            result_list.append(p)
    return result_list

class consignment_status(models.Model):
    consignmentNo = models.CharField(max_length=100)
    status = models.TextField
    created_time = models.DateField()
    objects = list_consignment()
    class Meta:
            managed = False

这是我的 view.py

class dashboard(APIView):
    permission_classes=(AllowAny,) 
    def get(APIView, request):

        data = [{
            "data" : consignment_status.objects.with_counts()
        }]

        return HttpResponse(data)

请提供指导，这是什么错误？

Answer 1

在consignment_status类更改中，

status = models.TextField

到

status = models.TextField(max_length=100)

“状态”是此函数的无效关键字参数

1 个答案: