Question

我有这4个型号。有一个部分，用户可以查看所有未完成的任务。我如何使用ListView和DetailView显示这些内容？在django文档中的所有示例中，他们总是只用一个模型给出一个例子。这可以使用CBV完成还是有替代方案？

模特

class task_a(models.Model):
    created_by = models.ForeignKey('auth.User')
    task_complete = models.BooleanField(default=0)
    q1 = models.CharField(max_length=60)
    q2 = models.DateField()
    q3 = models.TimeField()
    q4 = models.TextField()

    class Meta:
        verbose_name_plural = "task_a"
    def get_absolute_url(self):
        return reverse('task_a')
     def __unicode__(self):
        return u'%s %s %s %s %s' % (self.q1, self.q2, self.q3, self.q4,self.q5)


class task_b(models.Model):
    created_by = models.ForeignKey('auth.User')
    task_complete = models.BooleanField(default=0)
    q1 = models.CharField(max_length=60)
    q2 = models.DateField()
    q3 = models.TimeField()
    q4 = models.TextField()

    class Meta:
        verbose_name_plural = "task_b"
    def get_absolute_url(self):
        return reverse('task_b')
     def __unicode__(self):
        return u'%s %s %s %s %s' % (self.q1, self.q2, self.q3, self.q4,self.q5)


class task_c(models.Model):
    created_by = models.ForeignKey('auth.User')
    task_complete = models.BooleanField(default=0)
    q1 = models.CharField(max_length=60)
    q2 = models.DateField()
    q3 = models.TimeField()
    q4 = models.TextField()

    class Meta:
        verbose_name_plural = "task_c"
    def get_absolute_url(self):
        return reverse('task_c')
     def __unicode__(self):
        return u'%s %s %s %s %s' % (self.q1, self.q2, self.q3, self.q4,self.q5)


class task_d(models.Model):
    created_by = models.ForeignKey('auth.User')
    task_complete = models.BooleanField(default=0)
    q1 = models.CharField(max_length=60)
    q2 = models.DateField()
    q3 = models.TimeField()
    q4 = models.TextField()

    class Meta:
        verbose_name_plural = "task_d"
    def get_absolute_url(self):
        return reverse('task_d')
     def __unicode__(self):
        return u'%s %s %s %s %s' % (self.q1, self.q2, self.q3, self.q4,self.q5)

Answer 1

您可以通过覆盖班级中的get_context_data()函数来添加额外的上下文变量：

class MultipleModelsListView(ListView):
    model = TaskA # Class names should use capitalized CamelCase

    def get_context_data(self, **kwargs):
        kwargs = super(MultipleModelListView, self).get_context_data(**kwargs)
        kwargs.update({
            'taskb_list': TaskB.objects.all(), # or with some filter applied
            'taskc_list': TaskC.objects.all(),
            'taskd_list': TaskD.objects.all(),
        })
        return kwargs

除了ListView提供的默认上下文之外，这将为您提供迭代的上下文变量taskb_list，taskc_list和taskd_list。

您可以在模板中迭代这些：

{% for task in object_list %} {# default supplied by ListView #}
    {{ task.whatever }}
{% endfor %}
{% for task in taskb_list %}
    {{ task.whatever }}
{% endfor %} 
{# etc. #}

在django中列出基于类的列表和详细视图中的多个模型

1 个答案: