# HG changeset patch
# User Sylvain Thénault <sylvain.thenault@logilab.fr>
# Date 1244486068 -7200
# Node ID 20f18837107ca94a6a607b90419a2e0edcb83789
# Parent  6a5044f15cb9eb9570200822b82284ef23d4391f
provide local_add_relation / add_relation

diff -r 6a5044f15cb9 -r 20f18837107c server/sources/extlite.py
--- a/server/sources/extlite.py	Mon Jun 08 18:32:23 2009 +0200
+++ b/server/sources/extlite.py	Mon Jun 08 20:34:28 2009 +0200
@@ -214,6 +214,22 @@
         sql = self.sqladapter.sqlgen.delete(SQL_PREFIX + etype, attrs)
         sqlcursor.execute(sql, attrs)
 
+    def local_add_relation(self, session, subject, rtype, object):
+        """add a relation to the source
+
+        This is not provided as add_relation implementation since usually
+        source don't want to simply do this, so let raise NotImplementedError
+        and the source implementor may use this method if necessary
+        """
+        sqlcursor = session.pool[self.uri]
+        attrs = {'eid_from': subject, 'eid_to': object}
+        sql = self.sqladapter.sqlgen.insert('%s_relation' % rtype, attrs)
+        sqlcursor.execute(sql, attrs)
+
+    def add_relation(self, session, subject, rtype, object):
+        """add a relation to the source"""
+        raise NotImplementedError()
+
     def delete_relation(self, session, subject, rtype, object):
         """delete a relation from the source"""
         rschema = self.schema.rschema(rtype)