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GPS Tracer Extension: storing the path on SQL2005 via Web Services

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7 Sep 20075 min read 33.6K   427   33  
This article extends Leonardo Salvatore's project "A GPS tracer application for Windows Mobile CE 5" using the Web Service Software Factory. It shows how to create a robust solution for storing the path on a DB server, using Web Services and SQL

IF NOT EXISTS (SELECT NAME FROM sys.objects WHERE TYPE = 'P' AND NAME = 'RethrowError')
BEGIN
	EXEC('CREATE PROCEDURE [dbo].RethrowError AS RETURN')
END
GO

ALTER PROCEDURE RethrowError AS
    /* Return if there is no error information to retrieve. */
    IF ERROR_NUMBER() IS NULL
        RETURN;

    DECLARE
        @ErrorMessage    NVARCHAR(4000),
        @ErrorNumber     INT,
        @ErrorSeverity   INT,
        @ErrorState      INT,
        @ErrorLine       INT,
        @ErrorProcedure  NVARCHAR(200); 

    /* Assign variables to error-handling functions that
       capture information for RAISERROR. */

    SELECT
        @ErrorNumber = ERROR_NUMBER(),
        @ErrorSeverity = ERROR_SEVERITY(),
        @ErrorState = ERROR_STATE(),
        @ErrorLine = ERROR_LINE(),
        @ErrorProcedure = ISNULL(ERROR_PROCEDURE(), '-'); 

    /* Building the message string that will contain original
       error information. */

    SELECT @ErrorMessage = 
        N'Error %d, Level %d, State %d, Procedure %s, Line %d, ' + 
         'Message: '+ ERROR_MESSAGE(); 

    /* Raise an error: msg_str parameter of RAISERROR will contain
	   the original error information. */

    RAISERROR(@ErrorMessage, @ErrorSeverity, 1,
        @ErrorNumber,    /* parameter: original error number. */
        @ErrorSeverity,  /* parameter: original error severity. */
        @ErrorState,     /* parameter: original error state. */
        @ErrorProcedure, /* parameter: original error procedure name. */
        @ErrorLine       /* parameter: original error line number. */
        );

GO

----------------------------------------------------------------
-- [dbo].[Device] Table
--
IF NOT EXISTS (SELECT NAME FROM sys.objects WHERE TYPE = 'P' AND NAME = 'InsertDevice')
BEGIN
	EXEC('CREATE PROCEDURE [dbo].[InsertDevice] AS RETURN')
END

GO

ALTER PROCEDURE [dbo].[InsertDevice]
    @creationDate datetime,
	@iD uniqueidentifier,
	@lastLoginDate datetime
AS
BEGIN
	SET NOCOUNT ON
	
	BEGIN TRY
    INSERT INTO [dbo].[Device] ([CreationDate], [ID], [LastLoginDate])
	VALUES (@creationDate, @iD, @lastLoginDate)
    
    END TRY

    BEGIN CATCH
		EXEC RethrowError;
	END CATCH
    
    SET NOCOUNT OFF
END    

GO

IF NOT EXISTS (SELECT NAME FROM sys.objects WHERE TYPE = 'P' AND NAME = 'UpdateDevice')
BEGIN
	EXEC('CREATE PROCEDURE [dbo].[UpdateDevice] AS RETURN')
END

GO

ALTER PROCEDURE [dbo].[UpdateDevice]
    @creationDate datetime,
	@iD uniqueidentifier,
	@lastLoginDate datetime
AS
BEGIN

	--The [dbo].[Device] table doesn't have a timestamp column. Optimistic concurrency logic cannot be generated
	SET NOCOUNT ON

	BEGIN TRY
	UPDATE [dbo].[Device] 
	SET [CreationDate] = @creationDate, [LastLoginDate] = @lastLoginDate
	WHERE [ID]=@iD

	IF @@ROWCOUNT = 0
	BEGIN
		RAISERROR('Concurrent update error. Updated aborted.', 16, 2)
	END
    END TRY

    BEGIN CATCH
		EXEC RethrowError;
	END CATCH	

	SET NOCOUNT OFF
END

GO

IF NOT EXISTS (SELECT NAME FROM sys.objects WHERE TYPE = 'P' AND NAME = 'DeleteDevice')
BEGIN
	EXEC('CREATE PROCEDURE [dbo].[DeleteDevice] AS RETURN')
END

GO

ALTER PROCEDURE [dbo].[DeleteDevice]
	 @iD uniqueidentifier
AS
BEGIN
	SET NOCOUNT ON
	
    DELETE FROM [dbo].[Device]
	WHERE [ID]=@iD
    
    SET NOCOUNT OFF
END

GO

IF NOT EXISTS (SELECT NAME FROM sys.objects WHERE TYPE = 'P' AND NAME = 'GetAllFromDevice')
BEGIN
	EXEC('CREATE PROCEDURE [dbo].[GetAllFromDevice] AS RETURN')
END

GO

ALTER PROCEDURE [dbo].[GetAllFromDevice]    
AS
BEGIN
	SET NOCOUNT ON
	
	SELECT
	[device].[CreationDate] AS 'CreationDate',
	[device].[ID] AS 'ID',
	[device].[LastLoginDate] AS 'LastLoginDate'
FROM [dbo].[Device] [device]

	SET NOCOUNT OFF
END

GO

IF NOT EXISTS (SELECT NAME FROM sys.objects WHERE TYPE = 'P' AND NAME = 'GetDeviceByID')
BEGIN
	EXEC('CREATE PROCEDURE [dbo].[GetDeviceByID] AS RETURN')
END

GO

ALTER PROCEDURE [dbo].[GetDeviceByID] 
	@iD uniqueidentifier
AS
BEGIN

	SET NOCOUNT ON
	
	SELECT
	[device].[CreationDate] AS 'CreationDate',
	[device].[ID] AS 'ID',
	[device].[LastLoginDate] AS 'LastLoginDate'
	FROM [dbo].[Device] [device]
	WHERE [ID]=@iD

	SET NOCOUNT OFF
END

GO

----------------------------------------------------------------
-- [dbo].[LocationEntry] Table
--
IF NOT EXISTS (SELECT NAME FROM sys.objects WHERE TYPE = 'P' AND NAME = 'InsertLocationEntry')
BEGIN
	EXEC('CREATE PROCEDURE [dbo].[InsertLocationEntry] AS RETURN')
END

GO

ALTER PROCEDURE [dbo].[InsertLocationEntry]
    @heading float = NULL,
	@iD uniqueidentifier,
	@iDDevice uniqueidentifier,
	@latitude float = NULL,
	@longitude float = NULL,
	@quote float = NULL,
	@speed float = NULL,
	@whenInserted datetime = NULL
AS
BEGIN
	SET NOCOUNT ON
	
	BEGIN TRY
    INSERT INTO [dbo].[LocationEntry] ([Heading], [ID], [IDDevice], [Latitude], [Longitude], [Quote], [Speed], [WhenInserted])
	VALUES (@heading, @iD, @iDDevice, @latitude, @longitude, @quote, @speed, @whenInserted)
    
    END TRY

    BEGIN CATCH
		EXEC RethrowError;
	END CATCH
    
    SET NOCOUNT OFF
END    

GO

IF NOT EXISTS (SELECT NAME FROM sys.objects WHERE TYPE = 'P' AND NAME = 'UpdateLocationEntry')
BEGIN
	EXEC('CREATE PROCEDURE [dbo].[UpdateLocationEntry] AS RETURN')
END

GO

ALTER PROCEDURE [dbo].[UpdateLocationEntry]
    @heading float = NULL,
	@iD uniqueidentifier,
	@iDDevice uniqueidentifier,
	@latitude float = NULL,
	@longitude float = NULL,
	@quote float = NULL,
	@speed float = NULL,
	@whenInserted datetime = NULL
AS
BEGIN

	--The [dbo].[LocationEntry] table doesn't have a timestamp column. Optimistic concurrency logic cannot be generated
	SET NOCOUNT ON

	BEGIN TRY
	UPDATE [dbo].[LocationEntry] 
	SET [Heading] = @heading, [IDDevice] = @iDDevice, [Latitude] = @latitude, [Longitude] = @longitude, [Quote] = @quote, [Speed] = @speed, [WhenInserted] = @whenInserted
	WHERE [ID]=@iD

	IF @@ROWCOUNT = 0
	BEGIN
		RAISERROR('Concurrent update error. Updated aborted.', 16, 2)
	END
    END TRY

    BEGIN CATCH
		EXEC RethrowError;
	END CATCH	

	SET NOCOUNT OFF
END

GO

IF NOT EXISTS (SELECT NAME FROM sys.objects WHERE TYPE = 'P' AND NAME = 'DeleteLocationEntry')
BEGIN
	EXEC('CREATE PROCEDURE [dbo].[DeleteLocationEntry] AS RETURN')
END

GO

ALTER PROCEDURE [dbo].[DeleteLocationEntry]
	 @iD uniqueidentifier
AS
BEGIN
	SET NOCOUNT ON
	
    DELETE FROM [dbo].[LocationEntry]
	WHERE [ID]=@iD
    
    SET NOCOUNT OFF
END

GO

IF NOT EXISTS (SELECT NAME FROM sys.objects WHERE TYPE = 'P' AND NAME = 'GetAllFromLocationEntry')
BEGIN
	EXEC('CREATE PROCEDURE [dbo].[GetAllFromLocationEntry] AS RETURN')
END

GO

ALTER PROCEDURE [dbo].[GetAllFromLocationEntry]    
AS
BEGIN
	SET NOCOUNT ON
	
	SELECT
	[locationEntry].[Heading] AS 'Heading',
	[locationEntry].[ID] AS 'ID',
	[locationEntry].[IDDevice] AS 'IDDevice',
	[locationEntry].[Latitude] AS 'Latitude',
	[locationEntry].[Longitude] AS 'Longitude',
	[locationEntry].[Quote] AS 'Quote',
	[locationEntry].[Speed] AS 'Speed',
	[locationEntry].[WhenInserted] AS 'WhenInserted'
FROM [dbo].[LocationEntry] [locationEntry]

	SET NOCOUNT OFF
END

GO

IF NOT EXISTS (SELECT NAME FROM sys.objects WHERE TYPE = 'P' AND NAME = 'GetLocationEntryByID')
BEGIN
	EXEC('CREATE PROCEDURE [dbo].[GetLocationEntryByID] AS RETURN')
END

GO

ALTER PROCEDURE [dbo].[GetLocationEntryByID] 
	@iD uniqueidentifier
AS
BEGIN

	SET NOCOUNT ON
	
	SELECT
	[locationEntry].[Heading] AS 'Heading',
	[locationEntry].[ID] AS 'ID',
	[locationEntry].[IDDevice] AS 'IDDevice',
	[locationEntry].[Latitude] AS 'Latitude',
	[locationEntry].[Longitude] AS 'Longitude',
	[locationEntry].[Quote] AS 'Quote',
	[locationEntry].[Speed] AS 'Speed',
	[locationEntry].[WhenInserted] AS 'WhenInserted'
	FROM [dbo].[LocationEntry] [locationEntry]
	WHERE [ID]=@iD

	SET NOCOUNT OFF
END

GO

IF NOT EXISTS (SELECT NAME FROM sys.objects WHERE TYPE = 'P' AND NAME = 'GetLocationEntryByIDDevice')
BEGIN
	EXEC('CREATE PROCEDURE [dbo].[GetLocationEntryByIDDevice] AS RETURN')
END

GO

ALTER PROCEDURE [dbo].[GetLocationEntryByIDDevice] 
	@iDDevice uniqueidentifier
AS
BEGIN

	SET NOCOUNT ON
	
	SELECT
	[locationEntry].[Heading] AS 'Heading',
	[locationEntry].[ID] AS 'ID',
	[locationEntry].[IDDevice] AS 'IDDevice',
	[locationEntry].[Latitude] AS 'Latitude',
	[locationEntry].[Longitude] AS 'Longitude',
	[locationEntry].[Quote] AS 'Quote',
	[locationEntry].[Speed] AS 'Speed',
	[locationEntry].[WhenInserted] AS 'WhenInserted'
	FROM [dbo].[LocationEntry] [locationEntry]
	WHERE [IDDevice]=@iDDevice

	SET NOCOUNT OFF
END

GO


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