From 3417fc7c0df3b1b01750874587c4f3bb2ef02f45 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Wed, 4 Dec 2013 11:30:33 +0200
Subject: Implement on_delete pragma for object pointers

Translates to the ON DELETE SQL clause.
---
 odb/semantics/relational/foreign-key.cxx | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'odb/semantics/relational/foreign-key.cxx')

diff --git a/odb/semantics/relational/foreign-key.cxx b/odb/semantics/relational/foreign-key.cxx
index 8188e1f..59b401b 100644
--- a/odb/semantics/relational/foreign-key.cxx
+++ b/odb/semantics/relational/foreign-key.cxx
@@ -15,7 +15,7 @@ namespace semantics
 {
   namespace relational
   {
-    static const char* action_str[] = {"NO ACTION", "CASCADE"};
+    static const char* action_str[] = {"NO ACTION", "CASCADE", "SET NULL"};
 
     ostream&
     operator<< (ostream& os, foreign_key::action_type v)
@@ -38,6 +38,8 @@ namespace semantics
           v = foreign_key::no_action;
         else if (s == "CASCADE")
           v = foreign_key::cascade;
+        else if (s == "SET NULL")
+          v = foreign_key::set_null;
         else
           is.setstate (istream::failbit);
       }
-- 
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