在 Django 中使用图像填充表单中的字段

如何解决在 Django 中使用图像填充表单中的字段

我正在尝试使用来自 Django 模型的图像填充字段。这个想法是，用户将输入他们的产品名称，然后最终一个带有谷歌图片的 API 会查找并填充下一页上的一个字段，其中包含几个可供选择的图片。

在这个阶段，我只是想在表单上设置一个字段来显示多张图片供用户选择，但我遇到了困难。这是我的一些代码，任何输入都有帮助。我知道围绕这个主题有很多东西，我已经浏览了很多，但我仍然被困住了。我最近的尝试是创建一个自定义 Widget，我非常愿意接受任何可行的解决方案。

我真的不是 Django/Python 向导，所以请耐心等待 :) 谢谢！

模型.py

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forms.py

class Productimage(models.Model):
imageId = models.AutoField(auto_created=True,primary_key=True)
image = models.ImageField(upload_to='images',null=True,blank=True)

def __str__(self):
    return str(self.image)


class Item(models.Model):
itemId = models.AutoField(auto_created=True,primary_key=True)
itemName = models.CharField(
    "Name",max_length=1024,)
category = models.ForeignKey(Category,on_delete=models.CASCADE,related_name='category'
                             )
itemImage = models.ForeignKey(Productimage,related_name='photo',default="",)
itemOwner = models.ForeignKey(Customer,related_name='my_items'
                              )
itemAvaialable = models.BooleanField()
costPerItem = models.IntegerField(verbose_name='Cost per Item (USD)')
itemDescription = models.TextField(null=True,blank=True)
itemAddedDate = models.DateField(auto_Now_add=True)
asin = models.CharField(null=True,blank=True,max_length=10)

视图.py

class ImageCreationForm(forms.ModelForm):
class Meta:
    model = Productimage
    fields = ('image',)

def clean_itemImage(self):
    itemImage = self.cleaned_data['itemImage']
    valid_extensions = ['jpg','jpeg']
    extension = itemImage.rsplit('.',1)[1].lower()
    if extension not in valid_extensions:
        raise forms.ValidationError('The given product Image file does not ' \
                                    'match valid image extensions.')
    return itemImage

class ItemCreationForm(forms.ModelForm):
class Meta:
    model = Item
    fields = '__all__'
    widgets = {
        'itemAddedDate': forms.HiddenInput,}

小部件.py

class AddImageView(LoginrequiredMixin,CreateView):
model = Productimage
template_name = 'addImage.html'
fields = ('image',)

def form_valid(self,form):
    form.is_valid()
    form.instance.itemOwner = self.request.user
    return super().form_valid(form)

def get_success_url(self):
    return reverse('RentalApp:my_products')


class AddProductView(LoginrequiredMixin,CreateView):
model = Item
template_name = 'addProduct.html'
image = forms.FileField(required=False)
fields = ('itemName','category','itemImage','itemAvaialable','costPerItem','itemDescription')
login_url = '/users/login/'

def form_valid(self,form):
    form.fields["itemImage"].queryset = Productimage.objects.all()
    form.is_valid()
    form.instance.itemOwner = self.request.user
    return super().form_valid(form)

def get_success_url(self):
    return reverse('RentalApp:my_products')

Serializers.py

class ImageWidget(forms.widgets.Widget):
    def render(self,name,value,attrs=None,**kwargs):
        html = Template("""<img src="$link"/>""")
        return mark_safe(html.substitute(link=value))

用于添加产品的模板：

class ProductimageSerializer(serializers.ModelSerializer):

    product_image = serializers.SerializerMethodField()

    class Meta:
        model = Productimage
        fields = ('image')


class ProductimageRequirementSerializer(serializers.ModelSerializer):
    class Meta:
        model = Productimage
        fields = ('image')


class ProductSerializer(serializers.ModelSerializer):
    Product_requirement = serializers.SlugrelatedField(many=True,read_only=True,slug_field='text')
    club_image = ProductimageSerializer(many=True)

    class Meta:
        model = Productimage
        fields = ('image')