Python 图像URL的django表单查询集

我有一个表单可以将一个图像模型链接到另一个模型。 我试图预览表单中的图像，不像默认的下拉菜单，但我正在努力使用图像URL。我尝试了

image.url

，但它不起作用

我的模特

class Images(models.Model):
    image = models.ImageField(unique=False,upload_to='images/')

    def get_absolute_url(self):
        return reverse("image_detail",kwargs={'pk':pk})

#connect days and images together
class DayImage(models.Model):
    date = models.ForeignKey('luach.MyDate',related_name='day',on_delete=models.CASCADE)
    images = models.ForeignKey('luach.Images',related_name='images',on_delete=models.CASCADE)
    
    def get_absolute_url(self):
        return reverse("dayimage_detail",kwargs={'pk':self.pk})

我的表格.py

class DayImageForm(forms.ModelForm):

    class Meta:
        model = DayImage
        fields = ('images',)

我的观点

def create_day_image_view(request,pk):
    date = get_object_or_404(MyDate,pk=pk)
    if request.method == 'POST':
        form = DayImageForm(request.POST)
        if form.is_valid():
            dayimage = form.save(commit=False)
            dayimage.date = date
            dayimage.save()
            return redirect('date_detail',pk=date.pk)
            
    else:
        form = DayImageForm()

    context = {'form': form,'date': date,}
    return render(request,'luach/dayimage_form.html',context=context)

my dayimage_form.html

<form method="POST">
    {% csrf_token %}
                
    <select class="image-picker">
        {% for image in form.images %}
            <option data-img-src="{{image.value.images.image.url}}" value="{{forloop.counter}}">{{image.label}}</option>
        {% endfor %}
    </select>
    <button type='submit' class='btn btn-success'>save</button>
    <a class="btn btn-danger" href="{% url 'date_detail' pk=date.pk %}">cancel</a>
 </form>

{%csrf_令牌%}
{%用于form.images%}
{{image.label}
{%endfor%}
拯救