USE [site_fuchs]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO

-- =============================================
-- Author:		<Author,,Name>
-- Create date: <Create Date,,>
-- Description:	<Description,,>
-- =============================================
CREATE PROCEDURE [dbo].[ocmd_merge_navigation]
	@newnav [dbo].[ocms_type_navigation_base] READONLY
AS
BEGIN
	-- SET NOCOUNT ON added to prevent extra result sets from
	-- interfering with SELECT statements.
	SET NOCOUNT ON;

	-- update nav table
	UPDATE n
		SET n.[parent_iid] = i.[parent_iid]
	FROM [dbo].[ocms_navigation] as n
		JOIN [ocms_items] as i ON n.[ocms_iid] = i.[ocms_iid];

	-- merge nav
	WITH np as (
		-- make sure nav are allowed by locales and path constraints
		SELECT 
			n.*
			,i.[parent_iid]
		FROM @newnav as n
			JOIN [dbo].[ocms_items] as i ON n.[ocms_iid] = i.[ocms_iid] AND [view] = 1
			FULL OUTER JOIN [dbo].[ocms_locales]() as l on n.[locale] = l.[locale] AND l.[locale] <> '*'
		WHERE NOT EXISTS (SELECT * FROM [dbo].[ocms_navigation] as cn
							WHERE cn.[parent_iid] = i.[parent_iid] 
								AND cn.[alias] = n.[alias]
								AND [cn].[ocms_iid] <> n.[ocms_iid])
			AND i.[name] <> 'index'    -- nav not allowed for index
			AND n.[alias] not in ('index')  -- keyword index not allowed
	)
	MERGE [dbo].[ocms_navigation] as TARGET
		USING np as SOURCE ON TARGET.[locale] = SOURCE.[locale] AND TARGET.[ocms_iid] = SOURCE.[ocms_iid]
	WHEN MATCHED AND SOURCE.[alias] is null THEN 
		DELETE
	WHEN MATCHED THEN 
		UPDATE SET [alias] = LOWER(SOURCE.[alias])
	WHEN NOT MATCHED BY TARGET THEN
		INSERT ([ocms_iid], [locale], [alias])
		VALUES (SOURCE.[ocms_iid], SOURCE.[locale], LOWER(SOURCE.[alias]));

END
GO
ALTER AUTHORIZATION ON [dbo].[ocmd_merge_navigation] TO  SCHEMA OWNER 
GO