Changeset 143

Timestamp:

01/11/06 12:51:09

Author:

fumanchu

Message:

New schema.stage (to allow listeners to wait for an upgrade to finish).

Files:

• trunk/schemas.py (modified) (2 diffs)

trunk/schemas.py

@@ -18 +18 @@
-    guid = ""
-    latest = 0
+    stage = None
-    
-    def __init__(self, arena):
+        # Since schema upgrades may take some time, we keep track of our
+        # own processing state. Legal values are:
+        #   None              = not working on an upgrade
+        #   0 to self.latest  = working on an upgrade to this version
+        self.stage = None
+        
-        self.arena = arena
-        arena.register(DeployedVersion)
@@ -53 +60 @@
-        
-        for step in range(self.deployed, version):
+            self.stage = step
-            procedure = getattr(self, "upgrade_to_%s" % (step + 1), None)
-            if procedure:
-                procedure()
-            self.deployed = step + 1
+        
+        self.stage = None
-    
-    def upgrade_to_0(self):