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
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