Added configuration parameter for initial arguments caching

Author: Mark Gibbs

django_plotly_dash/dash_wrapper.py

@@ -38,6 +38,7 @@
 from .app_name import app_name, main_view_label
 from .middleware import EmbeddedHolder
 
+
 uid_counter = 0
 
 usable_apps = {}

django_plotly_dash/templatetags/plotly_dash.py

@@ -30,7 +30,7 @@
 from django.core.cache import cache
 
 from django_plotly_dash.models import DashApp
-from django_plotly_dash.util import pipe_ws_endpoint_name
+from django_plotly_dash.util import pipe_ws_endpoint_name, cache_timeout_initial_arguments
 
 register = template.Library()
 
@@ -76,7 +76,7 @@ def plotly_app(context, name=None, slug=None, da=None, ratio=0.1, use_frameborde
         # Generate a cache id
         cache_id = "dpd-initial-args-%s" % str(uuid.uuid4()).replace('-', '')
         # Store args in json form in cache
-        cache.set(cache_id, initial_arguments, 60)
+        cache.set(cache_id, initial_arguments, cache_timeout_initial_arguments())
     else:
         cache_id = None
 

django_plotly_dash/util.py

@@ -53,3 +53,7 @@ def insert_demo_migrations():
 def http_poke_endpoint_enabled():
     'Return true if the http endpoint is enabled through the settings'
     return _get_settings().get('http_poke_enabled', True)
+
+def cache_timeout_initial_arguments():
+    'Return cache timeout, in seconds, for initial arguments'
+    return _get_settings().get('cache_timeout_initial_arguments', 60)

docs/configuration.rst

@@ -21,6 +21,9 @@ below.
 
       # Insert data for the demo when migrating
       "insert_demo_migrations" : False,
+
+      # Timeout for caching of initial arguments in seconds
+      "cache_timeout_initial_arguments": 60,
   }
 
 Defaults are inserted for missing values. It is also permissible to not have any ``PLOTLY_DASH`` entry in