更新时间:2022-02-12 22:42:12
我遇到了类似的问题,我想出了自定义小部件以及对模型形式的一些调整.这是小部件:
I had similar problem and I came up with custom widget plus some tweaks to model form. Here is the widget:
from django.utils.safestring import mark_safe
class ModelLinkWidget(forms.Widget):
def __init__(self, obj, attrs=None):
self.object = obj
super(ModelLinkWidget, self).__init__(attrs)
def render(self, name, value, attrs=None):
if self.object.pk:
return mark_safe(
u'<a target="_blank" href="../../../%s/%s/%s/">%s</a>' %
(
self.object._meta.app_label,
self.object._meta.object_name.lower(),
self.object.pk, self.object
)
)
else:
return mark_safe(u'')
现在,由于每个内联小部件需要在构造函数中获取不同的对象,因此您不能仅以标准方式设置它,而是在 Form 的 init 方法中:
Now since widget for each inline need to get different object in constructor you can't just set it in standard way, but in Form's init method:
class TheForm(forms.ModelForm):
...
# required=False is essential cause we don't
# render input tag so there will be no value submitted.
link = forms.CharField(label='link', required=False)
def __init__(self, *args, **kwargs):
super(TheForm, self).__init__(*args, **kwargs)
# instance is always available, it just does or doesn't have pk.
self.fields['link'].widget = ModelLinkWidget(self.instance)