[MERGE] new v8 api by rco

A squashed merge is required as the conversion of the apiculture branch from
bzr to git was not correctly done. The git history contains irrelevant blobs
and commits. This branch brings a lot of changes and fixes, too many to list
exhaustively.

- New orm api, objects are now used instead of ids
- Environements to encapsulates cr uid context while maintaining backward compatibility
- Field compute attribute is a new object oriented way to define function fields
- Shared browse record cache
- New onchange protocol
- Optional copy flag on fields
- Documentation update
- Dead code cleanup
- Lots of fixes

1 files changed, 15 insertions, 1 deletions

diff --git a/openerp/exceptions.py b/openerp/exceptions.py
index 7789345585c..1d59fa67a7c 100644
--- a/openerp/exceptions.py
+++ b/openerp/exceptions.py
@@ -28,6 +28,13 @@ treated as a 'Server error'.
 If you consider introducing new exceptions, check out the test_exceptions addon.
 """
 
+# kept for backward compatibility
+class except_orm(Exception):
+    def __init__(self, name, value):
+        self.name = name
+        self.value = value
+        self.args = (name, value)
+
 class Warning(Exception):
     pass
 
@@ -47,8 +54,15 @@ class AccessDenied(Exception):
         super(AccessDenied, self).__init__('Access denied.')
         self.traceback = ('', '', '')
 
-class AccessError(Exception):
+class AccessError(except_orm):
     """ Access rights error. """
+    def __init__(self, msg):
+        super(AccessError, self).__init__('AccessError', msg)
+
+class MissingError(except_orm):
+    """ Missing record(s). """
+    def __init__(self, msg):
+        super(MissingError, self).__init__('MissingError', msg)
 
 class DeferredException(Exception):
     """ Exception object holding a traceback for asynchronous reporting.