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Rename Pessimistic to JustInTime

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This commit is contained in:
Matthew Tretter 2012-10-16 21:46:23 -04:00
parent ca391fbf0a
commit 7f6e97a37a
2 changed files with 6 additions and 11 deletions
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2
imagekit/conf.py
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@ -7,7 +7,7 @@ class ImageKitConf(AppConf):
CACHE_BACKEND = None
CACHE_DIR = 'CACHE/images'
CACHE_PREFIX = 'imagekit:'
DEFAULT_IMAGE_CACHE_STRATEGY = 'imagekit.imagecache.strategies.Pessimistic'
DEFAULT_IMAGE_CACHE_STRATEGY = 'imagekit.imagecache.strategies.JustInTime'
def configure_cache_backend(self, value):
if value is None:

15
imagekit/imagecache/strategies.py
View file

@ -2,26 +2,21 @@ from .actions import validate_now, clear_now
from ..utils import get_singleton
class Pessimistic(object):
class JustInTime(object):
"""
A caching strategy that validates the file every time it's accessed.
A caching strategy that validates the file right before it's needed.
"""
def on_accessed(self, file):
validate_now(file)
def on_source_deleted(self, file):
clear_now(file)
def on_source_changed(self, file):
validate_now(file)
class Optimistic(object):
"""
A caching strategy that validates when the source file changes and assumes
that the cached file will persist.
A caching strategy that acts immediately when the source file chages and
assumes that the cache files will not be removed (i.e. doesn't revalidate
on access).
"""