Oh, I see what's going on. I marked the field as readonly. Apparently the widget only gets created if the field is editable (I guess that makes sense).
On Apr 25, 2012, at 1:28 PM, Roy Smith wrote: > Ooops, forgot to mention, I'm using django 1.4. > > > On Apr 25, 2012, at 12:51 PM, Roy Smith wrote: > >> I'm trying to get the admin to give me a thumbnail for an ImageForm. >> Following the suggestion at http://djangosnippets.org/snippets/1580/, I've >> got the following code: >> >> from django import forms >> from django.contrib import admin >> from django.db import models >> from django.utils.safestring import mark_safe >> >> class AdminImageWidget(forms.FileInput): >> def __init__(self, attrs={}): >> assert 0 >> super(AdminImageWidget, self).__init__(attrs) >> >> def render(self, name, value, attrs=None): >> output = [] >> if value and hasattr(value, "url"): >> output.append(('<a target="_blank" href="%s">' >> '<img src="%s" style="height: 28px;" /></a> ' >> % (value.url, value.url))) >> output.append(super(AdminImageWidget, self).render(name, value, >> attrs)) >> return mark_safe(u''.join(output)) >> >> class ImageVersionAdmin(admin.ModelAdmin): >> readonly_fields = ('image', >> 'data') >> formfield_overrides = { >> models.ImageField: {'widget': AdminImageWidget, >> 'label': 'My Label',}, >> } >> >> admin.site.register(ImageVersion, ImageVersionAdmin) >> >> The problem is, I'm still getting the standard admin display. I stuck the >> "assert 0" in AdminImageWidget.__init__() just to prove that it's never >> being called. What magic am I missing? >> >> My model looks like: >> >> class ImageVersion(Model): >> image = ForeignKey(Image) >> data = ImageField(upload_to="images/foo") >> >> --- >> Roy Smith >> r...@panix.com >> >> >> > > > --- > Roy Smith > r...@panix.com > > > --- Roy Smith r...@panix.com -- You received this message because you are subscribed to the Google Groups "Django users" group. To post to this group, send email to django-users@googlegroups.com. To unsubscribe from this group, send email to django-users+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/django-users?hl=en.
