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48 lines
1.3 KiB
48 lines
1.3 KiB
9 years ago
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# -*- coding: utf-8 -*-
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from __future__ import unicode_literals
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# Erik Stein <code@classlibrary.net>, 2016
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from imagekit.models.fields.utils import ImageSpecFileDescriptor
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from imagekit.models.fields import ImageSpecField
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from ..files.storage import MediaAssetFileSystemStorage
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from ...cachefiles import MediaAssetCacheFile
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class MediaAssetCacheFileDescriptor(ImageSpecFileDescriptor):
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"""
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- Manages manually overriden cached files
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- knows to handle ConversionNotApplicable exceptions and
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provides svg-icons for this case
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"""
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def __init__(self, field, attname, source_field_name):
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self.attname = attname
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self.field = field
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self.source_field_name = source_field_name
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def __get__(self, instance, owner):
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if instance is None:
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return self.field
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else:
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source = getattr(instance, self.source_field_name)
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spec = self.field.get_spec(source=source)
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file = MediaAssetCacheFile(spec)
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instance.__dict__[self.attname] = file
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return file
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def __set__(self, instance, value):
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instance.__dict__[self.attname] = value
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class MediaAssetFileField(ImageSpecField):
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"""
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- default storage
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"""
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def __init__(self, storage=MediaAssetFileSystemStorage):
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pass
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