visualization: add setting to disable cache (#27407)

bijoe/settings.py

@@ -170,5 +170,7 @@ SELECT2_CSS = xstatic('select2', 'select2.min.css')
 
 BIJOE_SCHEMAS = []
 
+BIJOE_CACHE = True
+
 if 'BIJOE_SETTINGS_FILE' in os.environ:
     execfile(os.environ['BIJOE_SETTINGS_FILE'])

bijoe/visualization/utils.py

@@ -26,6 +26,7 @@ from django.utils.safestring import mark_safe
 from django.utils.translation import ugettext_lazy as _
 from django.core.cache import cache
 from django.http import Http404
+from django.conf import settings
 
 from ..utils import get_warehouses, human_join
 from ..engine import Engine
@@ -164,7 +165,8 @@ class Visualization(object):
         data = cache.get(key)
         if data is None:
             data = list(self.data())
-            cache.set(key, data)
+            if settings.BIJOE_CACHE:
+                cache.set(key, data)
         return data
 
     def table(self):

tests/settings.py

@@ -0,0 +1 @@
+BIJOE_CACHE = False

tox.ini

@@ -12,6 +12,7 @@ usedevelop = true
 basepython = python2
 setenv =
 	DJANGO_SETTINGS_MODULE=bijoe.settings
+	BIJOE_SETTINGS_FILE=tests/settings.py
 	coverage: COVERAGE=--junit-xml=test_results.xml --cov=bijoe --cov-report xml 
 deps =
 	dj18: django>=1.8,<1.9