Changeset 9189

Timestamp:

May 12, 2011, 1:55:27 PM (14 years ago)

Author:

rick

Message:

Avoid hitting the OSM website all the time, use local caching. Makes development more easy as well.

Location:

src/django_gheat

Files:

• settings.py (modified) (2 diffs)
• website/static/OpenStreetMap.js (modified) (1 diff)
• website/urls.py (modified) (1 diff)

src/django_gheat/settings.py

@@ -2 +2 @@
 
 import os
-PROJECT_HOME = os.path.dirname(__file__)
+PROJECT_HOME = os.path.abspath(os.path.dirname(__file__))
+OSM_CACHE_DIR = '/tmp/osm-cache'
+OSM_CACHE = 'osm_cache'
+
+
 
 DEBUG = True
 TEMPLATE_DEBUG = DEBUG
+
+if DEBUG and not os.path.exists(OSM_CACHE_DIR):
+  os.mkdir(OSM_CACHE_DIR)
 
 # Required for Etags Caching Implementation
@@ -31 +38 @@
         'BACKEND': 'django.core.cache.backends.locmem.LocMemCache',
         'LOCATION': 'unique-snowflake'
+    },
+    OSM_CACHE: {
+        'BACKEND': 'django.core.cache.backends.filebased.FileBasedCache',
+        'LOCATION': OSM_CACHE_DIR,
+        'TIMEOUT': 3600 * 24 * 7,
+        'OPTIONS': {
+            'MAX_ENTRIES': 100000
+        }
     }
 }

src/django_gheat/website/static/OpenStreetMap.js

@@ -45 +45 @@
     initialize: function(name, options) {
         var url = [
-            "http://a.tile.openstreetmap.org/${z}/${x}/${y}.png",
-            "http://b.tile.openstreetmap.org/${z}/${x}/${y}.png",
-            "http://c.tile.openstreetmap.org/${z}/${x}/${y}.png"
+            "/website/osm-proxy/${z}/${x},${y}.png",
         ];
         options = OpenLayers.Util.extend({ numZoomLevels: 19 }, options);

src/django_gheat/website/urls.py

@@ -20 +20 @@
     )
 
+urlpatterns += patterns('website.osm_proxy',
+    url(
+        # Example : today/fire/12/3,2.png
+        regex = r'^osm-proxy/(?P<zoom>\d+)/(?P<x>\d+),(?P<y>\d+).png$',
+        view = 'osm_proxy',
+        name = 'osm_proxy',
+       ),
+    )
+
 urlpatterns += patterns('website.nodelist',
     url(