Add API caching, move calls out into its own modules for reuse.

evesde/models/__init__.py

@@ -1,3 +1,4 @@
 from locations import Location, Region, Constellation, System, SystemJump, Planet, Moon, Station
 from objects import InSpaceObject
-from types import TypeCategory, TypeGroup, Type, UnitType, AttributeType, TypeAttribute
+from types import TypeCategory, TypeGroup, Type, UnitType, AttributeType, TypeAttribute
+from cache import EVEAPICache

evesde/models/cache.py

@@ -0,0 +1,14 @@
+from django.db import models
+
+
+class EVEAPICache(models.Model):
+
+    key = models.CharField('Cache Key', blank=False, max_length=40)
+    cache_until = models.DateTimeField('Cached Until', blank=False)
+    document = models.TextField('Document')
+
+    class Meta:
+            app_label = 'evesde'
+
+    def __unicode__(self):
+        return '%(key)s - %(cache_until)s' % self.__dict__

evesde/models/utils.py

@@ -6,8 +6,8 @@ class InheritanceQuerySet(QuerySet):
     def select_subclasses(self, *subclasses):
         if not subclasses:
             subclasses = [o for o in dir(self.model)
-                          if isinstance(getattr(self.model, o), SingleRelatedObjectDescriptor)\
-                          and issubclass(getattr(self.model,o).related.model, self.model)]
+                          if isinstance(getattr(self.model, o), SingleRelatedObjectDescriptor)
+                          and issubclass(getattr(self.model, o).related.model, self.model)]
         new_qs = self.select_related(*subclasses)
         new_qs.subclasses = subclasses
         return new_qs