[svn] Switch from photologue to imagekit. Less bloat.

Copied from http://cucc@cucc.survex.com/svn/trunk/expoweb/troggle/, rev. 8338 by cucc @ 5/11/2009 3:08 AM

imagekit/management/commands/ikflush.py

@@ -0,0 +1,38 @@
+from django.db.models.loading import cache
+from django.core.management.base import BaseCommand, CommandError
+from optparse import make_option
+from imagekit.models import ImageModel
+from imagekit.specs import ImageSpec
+
+
+class Command(BaseCommand):
+    help = ('Clears all ImageKit cached files.')
+    args = '[apps]'
+    requires_model_validation = True
+    can_import_settings = True
+
+    def handle(self, *args, **options):
+        return flush_cache(args, options)
+
+def flush_cache(apps, options):
+    """ Clears the image cache
+    
+    """
+    apps = [a.strip(',') for a in apps]
+    if apps:
+        print 'Flushing cache for %s...' % ', '.join(apps)
+    else:
+        print 'Flushing caches...'
+        
+    for app_label in apps:
+        app = cache.get_app(app_label)
+        models = [m for m in cache.get_models(app) if issubclass(m, ImageModel)]
+
+    for model in models:
+        for obj in model.objects.all():
+            for spec in model._ik.specs:
+                prop = getattr(obj, spec.name(), None)
+                if prop is not None:
+                    prop._delete()
+                if spec.pre_cache:
+                    prop._create()