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47 lines
1.4 KiB
47 lines
1.4 KiB
9 years ago
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"""
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Functions responsible for returning filenames for the given image generator.
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Users are free to define their own functions; these are just some some sensible
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choices.
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"""
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from django.conf import settings
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import os
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from ..utils import suggest_extension
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def spec_slug_as_path(generator):
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"""
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A namer that, given the following source file name::
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<asset_uuid>/original/bulldog.jpg
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will generate a relative name like this::
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<spec_slug>/5ff3233527c5ac3e4b596343b440ff67.jpg
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which is meant to be added to both
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<asset_uuid>/cache/
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<asset_uuid>/manual/
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.
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"""
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source_filename = getattr(generator.source, 'name', None)
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spec_slug = getattr(generator, 'slug', None)
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ext = suggest_extension(source_filename or '', generator.format)
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if source_filename is None or os.path.isabs(source_filename):
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# Generally, we put the file right in the cache file directory.
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dir = settings.IMAGEKIT_CACHEFILE_DIR
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else:
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# For source files with relative names (like Django media files),
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# use the source's name to create the new filename.
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dir = os.path.join(settings.IMAGEKIT_CACHEFILE_DIR,
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os.path.splitext(source_filename)[0])
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return os.path.normpath(os.path.join(dir,
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'%s%s' % (generator.get_hash(), ext)))
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