Changeset 3398

Timestamp:

07/29/07 14:40:04 (1 year ago)

Author:

mscott

Message:

Merge #58 to trunk.

Allow nested transaction classes other than _Create, _Delete, and
_Update to subclass from T.Create, T.Delete, and T.Update and still
work properly.

Update documentation to show that you can customize custom-named
transaction subclasses.

Files:

• trunk/Schevo/doc/SchevoTransactionHookMethods.txt (modified) (2 diffs)
• trunk/Schevo/schevo/entity.py (modified) (1 diff)
• trunk/Schevo/schevo/test/test_transaction_cdu_subclass.py (added)

trunk/Schevo/doc/SchevoTransactionHookMethods.txt

@@ -12 +12 @@
-========
-
-
-
-
+
+
+
+
+
+
+
+
-
-
@@ -45 +50 @@
-                    
-        class _Update(T.Update):
+            ...
+
+You can also create custom transactions that have names that differ
+from the standard ones shown above.  Remember to set up a `t` method
+so you can create instances of your new transaction::
+
+    class Foo(E.Entity):
+
+        bar = f.unicode()
+        count = f.integer()
+
+        def t_custom_update(self, **kw):
+            return E.Foo._CustomUpdate(self, **kw)
+
+        class _CustomUpdate(T.Update):
-            ...
-

trunk/Schevo/schevo/entity.py

@@ -202 +202 @@
-        # Fields in a transaction class defined in the schema appear
-        # below the fields that come from the entity field spec.
-
-
+
-            OldClass = getattr(cls, name)
+            if not isinstance(OldClass, type):
+                continue
+            if not issubclass(OldClass, (transaction.Create,
+                                         transaction.Delete,
+                                         transaction.Update)):
+                continue
-            NewClass = type(name, (OldClass,), {})
-            NewClass._EntityClass = cls