mirror of
https://github.com/Hopiu/django-imagekit.git
synced 2026-03-17 05:40:25 +00:00
b8e57dccd6
Previously, ImageSpecFile instances were retrieved (for saving and deleting, among other possibilities) by iterating over the model instance's attributes. This change adds ImageSpecFile names to a list (spec_file_names) on an imagekit meta object on the model (_ik), making later retrieval much cheaper and more straightforward.
44 lines
929 B
Python
44 lines
929 B
Python
""" ImageKit utility functions """
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import tempfile, types
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from django.utils.functional import wraps
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from lib import Image
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def img_to_fobj(img, format, **kwargs):
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tmp = tempfile.TemporaryFile()
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img.convert('RGB').save(tmp, format, **kwargs)
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tmp.seek(0)
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return tmp
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def get_spec_files(instance):
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try:
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ik = getattr(instance, '_ik')
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except AttributeError:
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return []
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else:
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return [getattr(instance, n) for n in ik.spec_file_names]
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def open_image(target):
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img = Image.open(target)
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img.copy = types.MethodType(_wrap_copy(img.copy), img, img.__class__)
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return img
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def _wrap_copy(f):
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@wraps(f)
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def copy(self):
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img = f()
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try:
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img.app = self.app
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except AttributeError:
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pass
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try:
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img._getexif = self._getexif
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except AttributeError:
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pass
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return img
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return copy
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