Exposed connection status.

ChangeLog

@@ -1,5 +1,8 @@
 2006-09-01  Federico Di Gregorio  <fog@initd.org>
 
+	* psycopg/connection_type.c: added .status attribute to expose
+	the internal status.
+
 	* psycopg/pqpath.c: applied patch from intgr (#117) to fix
 	segfault on null queries.
 

lib/extensions.py

@@ -43,14 +43,24 @@ from _psycopg import string_types, binary_types, new_type, register_type
 from _psycopg import ISQLQuote
 
 """Isolation level values."""
-ISOLATION_LEVEL_AUTOCOMMIT    = 0
+ISOLATION_LEVEL_AUTOCOMMIT     = 0
 ISOLATION_LEVEL_READ_COMMITTED = 1 
-ISOLATION_LEVEL_SERIALIZABLE  = 2
+ISOLATION_LEVEL_SERIALIZABLE   = 2
 
 # PostgreSQL maps the the other standard values to already defined levels
 ISOLATION_LEVEL_REPEATABLE_READ  = ISOLATION_LEVEL_SERIALIZABLE
 ISOLATION_LEVEL_READ_UNCOMMITTED = ISOLATION_LEVEL_READ_COMMITTED
 
+"""Transaction status values."""
+STATUS_SETUP = 0
+STATUS_READY    = 1
+STATUS_BEGIN    = 2
+STATUS_SYNC     = 3
+STATUS_ASYNC    = 4
+
+# This is a usefull mnemonic to check if the connection is in a transaction
+STATUS_IN_TRANSACTION = STATUS_BEGIN
+
 
 def register_adapter(typ, callable):
     """Register 'callable' as an ISQLQuote adapter for type 'typ'."""

psycopg/connection_type.c

@@ -260,6 +260,9 @@ static struct PyMemberDef connectionObject_members[] = {
     {"notifies", T_OBJECT, offsetof(connectionObject, notifies), RO},
     {"dsn", T_STRING, offsetof(connectionObject, dsn), RO,
         "The current connection string."},
+    {"status", T_LONG,
+        offsetof(connectionObject, status), RO,
+	"The current transaction status."},
 #endif    
     {NULL}
 };