Django ContextMixin'super'對象沒有屬性'get_context_data'

Question

我需要在幾個視圖中將一些上下文傳遞給模板。 使用某些用戶的信息從BD獲取上下文，因此我實現了一個特定的ContextMixin類：

class CampaignContextMixin(ContextMixin):
"""
This mixin returns context with info related to user's campaign.
It can be used in any view that needs campaign-related info to a template.
"""
def get_campaigns(self):
    # Get the first campaign related to user, can be more in the future
    return self.request.user.campaign_set.all()

# Method Overwritten to pass campaign data to template context
def get_context_data(self, **kwargs):
    context = super(CampaignContextMixin).get_context_data(**kwargs)
    campaign = self.get_campaigns()[0]
    context['campaign_name'] = campaign.name
    context['campaign_start_date'] = campaign.start_date
    context['campaign_end_date'] = campaign.end_date
    context['org_name'] = self.request.user.organization.name
    context['campaign_image'] = campaign.image.url
    context['campaign_details'] = campaign.details
    return context

然后我試圖在我的視圖中使用它，但我收到一個錯誤：

'super'對象沒有屬性'get_context_data'

class VoucherExchangeView(CampaignContextMixin, TemplateView):
"""
This view Handles the exchange of vouchers.
"""
template_name = "voucher_exchange.html"

def get_context_data(self, **kwargs):
    ctx = super(VoucherExchangeView).get_context_data(**kwargs)
    # add specific stuff if needed
    return ctx

我不確定是否是因為繼承錯誤引起的，或者因為TemplateView也繼承自ContextMixin。 我的目標是重用將廣告系列信息添加到上下文的代碼。

謝謝

Answer 1

你的意思是

super(CampaignContextMixin, self).get_context_data(**kwargs)
#super().get_context_data(**kwargs) --> python3