init

DataPRO/Modules/Database/DatabaseMigrationScripts/.svn/pristine/76/76ac176ce26f1fc28f38a224addc23b0393d1ce5.svn-base

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+CREATE PROCEDURE [dbo].[sp_LockUpdate]     
+     @UserId					INT				= NULL
+     ,@UserName					NVARCHAR(50)	= NULL
+     ,@ItemId					INT				= NULL
+	 ,@CategoryId				INT
+	 ,@MachineName				NVARCHAR(50)
+     ,@errorNumber				INT				OUTPUT
+     ,@errorMessage				NVARCHAR(250)	OUTPUT
+	 ,@LockingUser			    NVARCHAR(50)	OUTPUT
+	 ,@LockingMachine			NVARCHAR(50)	OUTPUT
+	 ,@LastUsedTime             DATETIME		OUTPUT
+	 ,@LockCreateTime			DATETIME		OUTPUT     
+AS
+BEGIN
+ SET @errorNumber = 0 
+ SET @errorMessage = space(0)
+ SET @LockingUser = space(0)
+ SET @LockingMachine = space(0)
+ SET @LastUsedTime = null
+ SET @LockCreateTime = null
+ 
+ IF(@UserId) IS NULL
+ BEGIN
+  IF NOT EXISTS( SELECT ID FROM Users WHERE UserName=@UserName)
+  BEGIN
+   SET @errorNumber = 2
+   SET @errorMessage = 'User not found'
+   return -1
+  END
+ END
+
+ IF NOT EXISTS( SELECT LockId FROM LockedItems WHERE CategoryId=@CategoryId AND ItemId=@ItemId AND DataPROUserID=@UserId AND MachineName=@MachineName)
+ BEGIN
+	IF EXISTS( SELECT LockId FROM LockedItems WHERE CategoryId=@CategoryId AND ItemId=@ItemId)
+	BEGIN
+		SET @errorNumber = 4
+		SET @errorMessage = 'Locked by another user'
+		SELECT @LockingUser = B.UserName, @LockingMachine=A.MachineName, @LastUsedTime=A.LastTouch, @LockCreateTime=A.StartTime FROM LockedItems as A INNER JOIN Users as B on A.DataPROUserID=B.ID WHERE A.CategoryId=@CategoryId AND A.ItemId=@ItemId
+	END
+	ELSE
+		BEGIN
+			SET @errorNumber = 3
+			SET @errorMessage = 'No lock to update'
+			return -1
+		END
+ END
+ ELSE
+ BEGIN   
+  DECLARE @UpdateTime DateTime
+  SET @UpdateTime = GetDate()
+  UPDATE LockedItems Set LastTouch=@UpdateTime WHERE CategoryId=@CategoryId AND ItemId=@ItemId AND DataPROUserID=@UserId
+ END
+END