JMP-Classes with instances and global (shared) functions

D_G — Fri, 09 Jun 2023 18:15:01 GMT

Hello everyone,

I have a question regarding JMP-Classes. I'm using custom classes to create instances as an interface for custom (sql) requests. These classes contain among other things a namespace, a window and a button. It works pretty good - however I have some generall/global classes which i also want to execute within these instances.

Dummy sample for a global class:

New Namespace("BASICS",
	{		
	
		BASIC_FUNCTION = Function({A, B}, 
		
			C = A * B;	
			Print(C);			
			Return(C);
			
		);
		
	}
);

And this is my handle function for the submit button. THIS_WN is the class containing the window and the button.

NS is the namespace within this class.

HANDLE_SUBMIT = Function({THIS_WN}, 

	THIS_WN:GET_WINDOW << Show Window(0);
	
	THIS_WN:NS:A = 2;
	THIS_WN:NS:B = 3;

	THIS_WN:NS:CMD = JSL Quote( 
		Local Here(
			
			Include(Get Path Variable("ADDIN_HOME(~ my AddIn ~)") || "LIB\BASICS.jsl");	
			
			Namespace("$NS$"):RESULT = BASICS:BASIC_FUNCTION(Namespace("$NS$"):A, Namespace("$NS$"):B);
			
			Print(Namespace("$NS$"):RESULT);
			Namespace("$NS$"):RESULT = Namespace("$NS$"):RESULT + 1;
			Print(Namespace("$NS$"):RESULT);
			
			Window("$WN$") << Show Window(1);
			
		);
	);
	
	THIS_WN:NS:CMD = Substitute(THIS_WN:NS:CMD, "$NS$", THIS_WN:NS << Get Name); 
	THIS_WN:NS:CMD = Substitute(THIS_WN:NS:CMD, "$WN$", THIS_WN:GET_WINDOW << Get Window Title); 
	
	Eval(Parse(THIS_WN:NS:CMD));

	Print("HERE");
		
	//CASES	
	//X = 1;
	//Print(THIS_WN:NS:CMD);	
	
);

I can execute the command and get the sql/datatable result. I also have controll over the window within the local here section. However after evaluation the command I really can't do anything else. Starting from "//CASES" all examples are not working, saying that there is no defined variable within this class.

Is there a way to "come back to the class" after a "local here" section?

Thank you in advance !

Re: JMP-Classes with instances and global (shared) functions

DonMcCormack — Fri, 15 Apr 2022 21:29:30 GMT

@D_G sorry that there hasn't been a response to your question. Custom classes are relatively new and few folks are familiar with their use. I haven't worked with classes (inside JSL), but it has been on my list of JSL topics to learn more about. I will take a look at what your trying to do and see if I can get you more information.

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JMP-Classes with instances and global (shared) functions

Re: JMP-Classes with instances and global (shared) functions