Question

我遍历Block对象列表，使用将block_type链接到ModelForm模型的映射字典为每个对象实例化ModelForm，然后将表单附加到我传递给模板以供显示的列表中。

    for block in blocks:
        block_instance = block_map[block.block_type].objects.get(id=block.id)
        new_form = block_forms[block.block_type]
        new_form_instance = new_form(
            request.user, 
            request.POST or None, 
            instance=block_instance,
            prefix = block.id
        )
        form_zones.append(new_form_instance)

稍后，在检查request.POST时我会验证每个表单

    if request.POST.get("save_submit"):
        for zone_form_check in story_zones:
            for block_form_check in zone_form_check:
                if block_form_check.is_valid():
                    print(block_form_check.cleaned_data.get("content"))
                    saved = block_form_check.save()
                    print(saved.content)
                    valid = True
    if valid:
        return redirect("Editorial:content", content_id=content_id)

cleaning_data.get（“content”）生成更新的数据，但即使在有效表单上调用save（）之后，saved.content也会生成对象的旧内容属性。换句话说，一个有效的表单正在调用save（），但它没有保存。

有问题的表格之一（目前我唯一的表格）是：

class Edit_Text_Block_Form(ModelForm):
    content = forms.CharField(widget = forms.Textarea(
        attrs = {
            "class": "full_tinymce"
        }),
        label = "",
    )

    class Meta:
        model = TextBlock
        fields = []

    def __init__(self, user, *args, **kwargs):
        self.user = user
        super(Edit_Text_Block_Form, self).__init__(*args, **kwargs)

有问题的模型是一个TextBlock，它继承自Block objets。这两个都在下面：

class Block(models.Model):
    zone = models.ForeignKey(Zone)
    order = models.IntegerField()
    weight = models.IntegerField()
    block_type = models.CharField(max_length=32, blank=True)

    class Meta:
        ordering = ['order']

    def delete(self, *args, **kwargs):
        # Calling custom delete methods of child blocks

        child = block_map[self.block_type].objects.get(id=self.id)
        if getattr(child, "custom_delete", None):
            child.custom_delete()

        # Overriding delete to check if there are any other blocks in the zone.
        # If not, the zone itself is deleted

        zones = Block.objects.filter(zone=self.zone).count()
        if zones <= 1:
             self.zone.delete()

    # Children of Block Object
    class TextBlock(Block):
         content = models.TextField(blank=True)

为什么调用saved = block_form_check.save（）的任何想法都没有更新我的模型？

谢谢！

Answer 1

我认为这是因为您通过在表单的Meta类中设置fields = []来有效地从表单中排除所有模型字段。这意味着Django不再将表单上手动定义的content字段与模型中的字段相关联。

相反，请将字段设置为['content']，它应该按预期工作。

Answer 2

TL; DR表单名称不能以html4 specs

的数字开头

尝试使用prefix =＆＃34; block_％s＆＃34; ％block.id

Django表单，前缀不在save（）上更新

2 个答案: