From 8710133250ec58bb9572bce0d3e13e232b60d17a Mon Sep 17 00:00:00 2001 From: alecpl Date: Mon, 15 Nov 2010 14:03:22 +0000 Subject: - Fix error in MSSQL DDL scripts (#1487112): use trigger instead of foreign key constraint --- SQL/mssql.initial.sql | 9 ++++++--- SQL/mssql.upgrade.sql | 7 ++++--- 2 files changed, 10 insertions(+), 6 deletions(-) (limited to 'SQL') diff --git a/SQL/mssql.initial.sql b/SQL/mssql.initial.sql index 36788585f..823d1b3ae 100644 --- a/SQL/mssql.initial.sql +++ b/SQL/mssql.initial.sql @@ -291,8 +291,11 @@ ALTER TABLE [dbo].[contactgroupmembers] ADD CONSTRAINT [FK_contactgroupmembers_c ON DELETE CASCADE ON UPDATE CASCADE GO -ALTER TABLE [dbo].[contactgroupmembers] ADD CONSTRAINT [FK_contactgroupmembers_contact_id] - FOREIGN KEY ([contact_id]) REFERENCES [dbo].[contacts] ([contact_id]) - ON DELETE CASCADE ON UPDATE CASCADE +-- Use trigger instead of foreign key (#1487112) +-- "Introducing FOREIGN KEY constraint ... may cause cycles or multiple cascade paths." +CREATE TRIGGER [contact_delete_member] ON [dbo].[contacts] + AFTER DELETE AS + DELETE FROM [dbo].[contactgroupmembers] + WHERE [contact_id] IN (SELECT [contact_id] FROM deleted) GO diff --git a/SQL/mssql.upgrade.sql b/SQL/mssql.upgrade.sql index cf0c17157..4072c25ff 100644 --- a/SQL/mssql.upgrade.sql +++ b/SQL/mssql.upgrade.sql @@ -77,9 +77,10 @@ ALTER TABLE [dbo].[contactgroupmembers] ADD CONSTRAINT [FK_contactgroupmembers_c ON DELETE CASCADE ON UPDATE CASCADE GO -ALTER TABLE [dbo].[contactgroupmembers] ADD CONSTRAINT [FK_contactgroupmembers_contact_id] - FOREIGN KEY ([contact_id]) REFERENCES [dbo].[contacts] ([contact_id]) - ON DELETE CASCADE ON UPDATE CASCADE +CREATE TRIGGER [contact_delete_member] ON [dbo].[contacts] + AFTER DELETE AS + DELETE FROM [dbo].[contactgroupmembers] + WHERE [contact_id] IN (SELECT [contact_id] FROM deleted) GO ALTER TABLE [dbo].[contactgroups] ADD CONSTRAINT [FK_contactgroups_user_id] -- cgit v1.2.3