Django 错误 'RawQuerySet' 对象没有属性 'all'

Question

如果我使用 SQL 语句在下拉列表中填充数据，则会收到此错误消息。

错误信息

'RawQuerySet' object has no attribute 'all'

模型.py

@python_2_unicode_compatible  # only if you need to support Python 2
class FacebookAccount(models.Model):
    user = models.ForeignKey(User)
    account_description = models.CharField(max_length=50)
    facebook_application_id = models.CharField(max_length=50)
    facebook_application_secret = models.CharField(max_length=50)
    ouath_token = models.CharField(max_length=500)
    status = models.BooleanField(default=False)

    def __str__(self):
        return self.account_description

@python_2_unicode_compatible  # only if you need to support Python 2
class FacebookFanPage(models.Model):
    facebook_account = models.ForeignKey(FacebookAccount)
    fan_page_description = models.CharField(max_length=50)
    fan_page_id = models.CharField(max_length=30)
    fan_page_access_token = models.CharField(max_length=500, null=True)

    def __str__(self):
        return self.fan_page_description

class Campaign(models.Model):
    aList = (
        ('1', 'Send replies to inbox messages'),
        ('2', 'Post replies to users comments')
    )
    user = models.ForeignKey(User)
    campaign_name = models.CharField(max_length=50)
    autoresponder_type = models.CharField(max_length=10, choices=aList, null=True)
    facebook_account_to_use = models.ForeignKey(FacebookAccount)
    set_auto_reply_for_fan_page = models.ForeignKey(FacebookFanPage)
    message_list_to_use = models.ForeignKey(PredefinedMessage)
    #reply_only_in_this_hourly_interval
    reply_only_for_this_keyword = models.CharField(max_length=50, null=True)

查看.py

def autoresponder_create(request, template_name='autoresponder/autoresponder_form.html'):
if not request.user.is_authenticated():
    return redirect('home')
form = AutoresponderForm(request.POST or None)
form.fields["set_auto_reply_for_fan_page"].query = FacebookFanPage.objects.raw('SELECT * '
                                         'FROM fbautoreply_facebookfanpage '
                                         'JOIN fbautoreply_facebookaccount ON fbautoreply_facebookfanpage.facebook_account_id = fbautoreply_facebookaccount.id '
                                         'WHERE fbautoreply_facebookaccount.user_id = %s ', [str(request.user.id)])
if form.is_valid():
    form = form.save(commit=False)
    form.user = request.user
    form.save()
    return redirect('autoresponder_list')
return render(request, template_name, {'form':form})

Answer 1

正如第一条评论所说，您似乎在查询集上调用 all() 。 在执行原始 sql 查询后，您不必调用 .all()，如果您将它分配给一个变量，因为该变量已经包含您的查询获取的所有对象。

In [6]: t = Team.objects.raw('SELECT * FROM core_team')

In [7]: t
Out[7]: <RawQuerySet: SELECT * FROM core_team>

In [8]: t[0]
Out[8]: <Team: test>
In [9]: [x for x in t ]
Out[9]: [<Team: test>, <Team: team2>, <Team: adminTeam>, <Team: team4>]

如果你调用 t.all()

In [11]: t.all()
    ---------------------------------------------------------------------------
    AttributeError                            Traceback (most recent call last)
    <ipython-input-11-2ce0015f044f> in <module>()
    ----> 1 t.all()

    AttributeError: 'RawQuerySet' object has no attribute 'all'

    In [12]: 

因此，您似乎在执行 sql 原始查询后调用all() 。 删除那段代码，它就会解决。 如果您想使用更好的方法来执行 sql 查询，您可以参考django 文档的这一部分。

编辑

尝试将form.fields["set_auto_reply_for_fan_page"].query更改为form.fields["set_auto_reply_for_fan_page"].queryset

Answer 2

您可以在 sql 中创建视图或选择查询，然后您可以使用原始 sql 处理此查询，例如您想使用类似 contidion 进行过滤。 首先选择所有带有视图的连接表或选择查询是第一个查询选择所有新查询是使用原始查询。 不是：为 postgressql 选择语法

        if request_post:
            if request_post.get('name'):
              name = request_post.get('name')
              name = '%'+name+'%'
              condition = "WHERE account_name like"
              s = '%s'
              new_query = f"""{query}  {condition} {s} """
              queryset=TestOrderDetail.objects.raw(new_query,[name] )

Answer 3

form.fields["set_auto_reply_for_fan_page"].choices = [(None, '---'),] + [ (x.id, x.name ,) for x in FacebookFanPage.objects.raw('''select id, name from dual''')]