From: Mike Bayer <mike_mp@zzzcomputing.com>
Date: Mon, 15 Nov 2010 17:40:55 +0000 (-0500)
Subject: - Added a bind processor for booleans which coerces
X-Git-Tag: rel_0_7b1~266
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=40d5a32e59a49075129211358f00e857dac73885;p=thirdparty%2Fsqlalchemy%2Fsqlalchemy.git

- Added a bind processor for booleans which coerces
to int, for DBAPIs such as pymssql that naively call
str() on values.
---

diff --git a/CHANGES b/CHANGES
index a6fd7009ec..c2107364f4 100644
--- a/CHANGES
+++ b/CHANGES
@@ -32,6 +32,10 @@ CHANGES
   - The 'info' attribute of Column is copied during 
     Column.copy(), i.e. as occurs when using columns
     in declarative mixins.  [ticket:1967]
+
+  - Added a bind processor for booleans which coerces
+    to int, for DBAPIs such as pymssql that naively call 
+    str() on values.
     
 - engine
   - Implemented sequence check capability for the C 
diff --git a/lib/sqlalchemy/processors.py b/lib/sqlalchemy/processors.py
index e73e26456e..88dabe87c3 100644
--- a/lib/sqlalchemy/processors.py
+++ b/lib/sqlalchemy/processors.py
@@ -26,6 +26,12 @@ def str_to_datetime_processor_factory(regexp, type_):
             return type_(*map(int, rmatch(value).groups(0)))
     return process
 
+def boolean_to_int(value):
+    if value is None:
+        return None
+    else:
+        return int(value)
+
 try:
     from sqlalchemy.cprocessors import UnicodeResultProcessor, \
                                        DecimalResultProcessor, \
diff --git a/lib/sqlalchemy/types.py b/lib/sqlalchemy/types.py
index 9f322d1eb5..111f2314bf 100644
--- a/lib/sqlalchemy/types.py
+++ b/lib/sqlalchemy/types.py
@@ -1682,6 +1682,12 @@ class Boolean(TypeEngine, SchemaType):
                     )
         table.append_constraint(e)
     
+    def bind_processor(self, dialect):
+        if dialect.supports_native_boolean:
+            return None
+        else:
+            return processors.boolean_to_int
+        
     def result_processor(self, dialect, coltype):
         if dialect.supports_native_boolean:
             return None