added tagcloud

applications/examples/controllers/cache_examples.py

@@ -0,0 +1,61 @@
+
+import time
+
+
+def cache_in_ram():
+    """cache the output of the lambda function in ram"""
+
+    t = cache.ram('time', lambda : time.ctime(), time_expire=5)
+    return dict(time=t, link=A('click to reload', _href=URL(r=request)))
+
+
+def cache_on_disk():
+    """cache the output of the lambda function on disk"""
+
+    t = cache.disk('time', lambda : time.ctime(), time_expire=5)
+    return dict(time=t, link=A('click to reload', _href=URL(r=request)))
+
+
+def cache_in_ram_and_disk():
+    """cache the output of the lambda function on disk and in ram"""
+
+    t = cache.ram('time', lambda : cache.disk('time', lambda : \
+                  time.ctime(), time_expire=5), time_expire=5)
+    return dict(time=t, link=A('click to reload', _href=URL(r=request)))
+
+
+@cache(request.env.path_info, time_expire=5, cache_model=cache.ram)
+def cache_controller_in_ram():
+    """cache the output of the controller in ram"""
+
+    t = time.ctime()
+    return dict(time=t, link=A('click to reload', _href=URL(r=request)))
+
+
+@cache(request.env.path_info, time_expire=5, cache_model=cache.disk)
+def cache_controller_on_disk():
+    """cache the output of the controller on disk"""
+
+    t = time.ctime()
+    return dict(time=t, link=A('click to reload', _href=URL(r=request)))
+
+
+@cache(request.env.path_info, time_expire=5, cache_model=cache.ram)
+def cache_controller_and_view():
+    """cache the output of the controller rendered by the view in ram"""
+
+    t = time.ctime()
+    d = dict(time=t, link=A('click to reload', _href=URL(r=request)))
+    return response.render(d)
+
+
+def cache_db_select():
+    """cache the database select in ram for 5 seconds"""
+
+    db.users.insert(name='somebody', email='gluon@mdp.cti.depaul.edu')
+    records = db().select(db.users.ALL, cache=(cache.ram, 5))
+    if len(records) > 20:
+        db(dba.users.id > 0).delete()
+    return dict(records=records)
+
+