mirror of
https://github.com/Hopiu/django-imagekit.git
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37 lines
1.2 KiB
Python
37 lines
1.2 KiB
Python
from django.utils.translation import ugettext_lazy as _
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from django.template.loader import render_to_string
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class AdminThumbnail(object):
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"""A convenience utility for adding thumbnails to the Django admin change
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list.
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"""
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short_description = _('Thumbnail')
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allow_tags = True
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def __init__(self, image_field, template=None):
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"""
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:param image_field: The name of the ImageField or ImageSpec on the model
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to use for the thumbnail.
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:param template: The template with which to render the thumbnail
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"""
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self.image_field = image_field
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self.template = template
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def __call__(self, obj):
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thumbnail = getattr(obj, self.image_field, None)
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if not thumbnail:
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raise Exception('The property {0} is not defined on {1}.'.format(
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obj, self.image_field))
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original_image = getattr(thumbnail, 'source_file', None) or thumbnail
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template = self.template or 'imagekit/admin/thumbnail.html'
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return render_to_string(template, {
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'model': obj,
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'thumbnail': thumbnail,
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'original_image': original_image,
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})
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