X-Git-Url: http://dolda2000.com/gitweb/?p=wrw.git;a=blobdiff_plain;f=wrw%2Futil.py;h=b299b0a8197624872d9ea9eff01937cbc0c2e31e;hp=b757e14a724c8f9aec56d568a4bea96b099c90fc;hb=a4ad119b9bb8ba705deb818c08f99927a6ac5cd3;hpb=9aebe126b0e64eca0a987a9fcc652d8df4476f6a

diff --git a/wrw/util.py b/wrw/util.py
index b757e14..b299b0a 100644
--- a/wrw/util.py
+++ b/wrw/util.py
@@ -19,3 +19,35 @@ def persession(data = None):
             return sess[callable].handle(req)
         return wrapper
     return dec
+
+class sessiondata(object):
+    @classmethod
+    def get(cls, req):
+        sess = cls.sessdb().get(req)
+        with sess.lock:
+            try:
+                return sess[cls]
+            except KeyError:
+                ret = cls(req)
+                ret._is_dirty = [False]
+                sess[cls] = ret
+                return ret
+
+    @classmethod
+    def sessdb(cls):
+        return session.default
+
+    def sessfrozen(self):
+        self._is_dirty[:] = [False]
+
+    def sessdirty(self):
+        return self._is_dirty[0]
+
+    def __setattr__(self, name, value):
+        if hasattr(self, "_is_dirty"):
+            self._is_dirty[:] = [True]
+        super().__setattr__(name, value)
+
+    def __delattr__(self, name):
+        super().__delattr__(name)
+        self._is_dirty[:] = [True]