Django Admin Show Image from Imagefield

While I can show an uploaded image in list_display is it possible to do this on the per model page (as in the page you get for changing a model)?

A quick sample model would be:

Class Model1(models.Model):
    image = models.ImageField(upload_to=directory)

The default admin shows the url of the uploaded image but not the image itself.

Thanks!

Solution 1:

Sure. In your model class add a method like:

def image_tag(self):
    from django.utils.html import escape
    return u'<img src="%s" />' % escape(<URL to the image>)
image_tag.short_description = 'Image'
image_tag.allow_tags = True

and in your admin.py add:

fields = ( 'image_tag', )
readonly_fields = ('image_tag',)

to your ModelAdmin. If you want to restrict the ability to edit the image field, be sure to add it to the exclude attribute.

Note: With Django 1.8 and 'image_tag' only in readonly_fields it did not display. With 'image_tag' only in fields, it gave an error of unknown field. You need it both in fields and in readonly_fields in order to display correctly.

Solution 2:

In addition to the answer of Michael C. O'Connor

Note that since Django v.1.9 (updated - tested and worked all the way to Django 3.0)

image_tag.allow_tags = True

is deprecated and you should use format_html(), format_html_join(), or mark_safe() instead

So if you are storing your uploaded files in your public /directory folder, your code should look like this:

from django.utils.html import mark_safe


    Class Model1(models.Model):
        image = models.ImageField(upload_to=directory)

        def image_tag(self):
            return mark_safe('<img src="/directory/%s" width="150" height="150" />' % (self.image))

        image_tag.short_description = 'Image'

and in your admin.py add:

fields = ['image_tag']
readonly_fields = ['image_tag']