HMGSCRIPT 2012: Programming For The Web in The Right Way :)

[Roberto Lopez]

HMGSCRIPT R015

Hi,

I've added a new server function (Modify()) and made several changes to existing ones. The most important: I've added error handling to avoid that a wrong parameter crash the server. The error description is sent to the client as response to the SendMessage() function.

Code: Select all

MODIFY: (Server Function)
-------------------------

Modifies a record.

Syntax:

	Modify( cTable , aColumns , aValues , cForExpr )

Enjoy!

[Rathinagiri]

Thanks Roberto.

[Roberto Lopez]

HMGSCRIPT R016

Hi all,

I've added security to the server and made other minimal modifications.

Code: Select all

LOGIN: (Server Function)
------------------------

Starts a server session.

Syntax:

	Login ( cUser , cPassword )



LOGOUT: (Server Function)
-------------------------

Ends a server session.

Syntax:

	Logout ()

Enjoy!

[Roberto Lopez]

HMGSCRIPT R017

Well... we are getting serious now...

After many tests and a light headache, I've concluded that the only way to make things easier is to complicate them a little

Definitively we must to use objects to simplify development and the use of the library.

It will be very easy since functions in JavaScript are objects already.

I've replaced the panel/query combination with a true browse object with its refresh method to retrieve and show data from the server.

It is extremely easy to use now, since I've successfully hidden the callback.

Code: Select all

BROWSE:
-------

Creates an HTML table inside a scrollable DIV, loaded with the specified dbf query.

Syntax:

	Browse( cId, cParentId, nRow, nCol, nWidth, nHeight, cDbfFile, aColumns, 
	aHeaders , cForExpr , cOrder  )

Methods:

	refresh()

Notes:

	- 'cId' is the id of the HTML table created (to be accessed via DOM).
	- 'cParentId' is the Id of the parent window.
	

Example:

	oBrowse = new Browse( 'browse1' , 
			'win', 050 , 050 , 550 , 300 , '[test]' , 
			'{ [code] , [first] , [last] , [birth] , [married] }' , 
			'{ [Code] , [First] , [last] , [Birth] , [Married] }' , 
			'[code < 100]' , '[code]' );

	oBrowse.refresh()

Please take a look at the updated server demo.

All other widgets will follow the same path...

[Roberto Lopez]

A nice reading:

http://www.phpied.com/3-ways-to-define- ... ipt-class/

[bpd2000]

Dear Roberto

Thank you for providing link

[Roberto Lopez]

HMGSCRIPT R018

Now, browse parameters are all true JavaScript types.

Example:

Code: Select all

	oBrowse = new Browse( 
		'browse1' , 
		'win' , 
		050 , 050 , 550 , 300 , 
		'test' , [ 'code' , 'first' , 'last' , 'birth' , 'married' ] , 
		[ 'Code' , 'First' , 'last' , 'Birth' , 'Married' ] , 
		'code < 100' , 
		'code' );

	oBrowse.refresh()

Code: Select all

Syntax:

	Browse( cId, cParentId, nRow, nCol, nWidth, nHeight, cDbfFile, aColumns, 
	aHeaders , cForExpr , cOrder  )

Methods:

	refresh()

Notes:

	'cId' is the id of the HTML table created (to be accessed via DOM).
	'cParentId' is the Id of the parent window.

[Rathinagiri]

Very nice Roberto.

[Roberto Lopez]

The next steps...

I'll stop development again to learn more about JavaScript, to be sure that the basic library design will be the right one (as simple and easy to use as possible).

[luisfrancisco62]

genial, gracias desde colombia, como seria con una ventana de login? y una funcion para menu?

gracias muchas gracias