mirror of
https://github.com/Hopiu/django-imagekit.git
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54 lines
1.7 KiB
Python
54 lines
1.7 KiB
Python
import os
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from django.db.models.fields.files import ImageFieldFile
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from .generators import SpecFileGenerator
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from .utils import SpecWrapper
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class ImageSpecFile(ImageFieldFile):
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def __init__(self, spec, source_file, spec_id):
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spec = SpecWrapper(spec)
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self.storage = spec.storage or source_file.storage
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self.generator = SpecFileGenerator(processors=spec.processors,
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format=spec.format, options=spec.options,
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autoconvert=spec.autoconvert, storage=self.storage)
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self.spec = spec
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self.source_file = source_file
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self.spec_id = spec_id
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@property
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def url(self):
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self.validate()
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return super(ImageFieldFile, self).url
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def _get_file(self):
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self.validate()
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return super(ImageFieldFile, self).file
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file = property(_get_file, ImageFieldFile._set_file, ImageFieldFile._del_file)
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def clear(self):
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return self.spec.image_cache_backend.clear(self)
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def invalidate(self):
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return self.spec.image_cache_backend.invalidate(self)
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def validate(self):
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return self.spec.image_cache_backend.validate(self)
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@property
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def name(self):
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source_filename = self.source_file.name
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filepath, basename = os.path.split(source_filename)
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filename = os.path.splitext(basename)[0]
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extension = self.generator.suggest_extension(source_filename)
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new_name = '%s%s' % (filename, extension)
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cache_filename = ['cache', 'iktt'] + self.spec_id.split(':') + \
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[filepath, new_name]
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return os.path.join(*cache_filename)
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def generate(self, save=True):
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return self.generator.generate_file(self.name, self.source_file, save)
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