How to getKey (Primary Key) in XBASIC

[gamma]

Re: How to getKey (Primary Key) in XBASIC

Hi Selwyn,

thank you for the fix and the video explanation, I can't wait to test it!
The reason for me generating the JavaScript code in XBASIC rather than setting the state info directly in XBASIC as you suggested is that if I want to do

e._state.keys.alpha._key =1000

I would have to know what "alpha" is. As I am trying to create an dynamic code I do not know this until runtime, depending on how many rows and columns I have I call the key something like Id_x. "x" being a number I do not know at the point of writing the code. So what I do is generate the JavaScript text where I can add a variable and I do not need to know what this var contains e.g.

"{dialog.Object}.setKey('Id_"+someNumber+"', "+newId+", "+currentRow+");"

I can retrieve the key easily with a generated text with "eval" like

pId = *if_error(eval("e._state.keys.HID_"+someNumber+"_row"+currentRow+"._key"),0)

but I have not found a way to set the stateinfo in XBASIC without knowing previously what "someNumber" and "currentRow" is going to be. If you know a way, please let me know it would make my code much cleaner. I would be looking for something similar like the eval() function e.g. setStateInfo("keys.HID_"+someNumber+"_row"+currentRow+"._key", newId).

If not I will wait for the new patch an just keep generating the JavaScript although this is not a clean way to go.

Thanks a million for your help once again! without you I would have given up on A5 already.

[Selwyn Rabins]

Re: How to getKey (Primary Key) in XBASIC

the pre-release update for today has just been released. however, i am not sure I understand your comment: � would have to know what "alpha" is

if you use the .setKey() javascript method, as shown below, you know "alpha"

{dialog.object}.setKey('alpha',1000);"

so, why is the above any easier than this


e._state.keys.alpha._key = 1000

[gamma]

Re: How to getKey (Primary Key) in XBASIC

Hi Selwyn,

Thank you for the patch. It works now!
I do not know how to explain diffrently as with the code examples in post #16
But I'll try again. When I create Javascript within XBASIC I generate TEXT whatever the text may be I can generate on the fly. So in e.g.

For i=1 to 10
   jscmd = jscmd + "{dialog.object}.setKey('alpha"[COLOR="#FF0000"]+i+[/COLOR]"',i);"
next

but I can't do

For i=1 to 10
   e._state.keys.alpha[COLOR="#FF0000"]+i+[/COLOR]._key = i
next

Do you understand what I mean?

[Selwyn Rabins]

Re: How to getKey (Primary Key) in XBASIC

you can use the eval() function.

eval("e._state.keys.alpha"+i+"._key") = i

[gamma]

Re: How to getKey (Primary Key) in XBASIC

Now thats great, thank you! I did not know that, I thought eval() was a read Only function. I'll try it out right away. Sometimes it can be so simple. Thank you!

[SNusa]

Re: How to getKey (Primary Key) in XBASIC

you can use the eval() function.

eval("e._state.keys.alpha"+i+"._key") = i

I reviewed Code Indirection Info in the wiki: http://wiki.alphasoftware.com/Code+Indirection
I'm more confused than before, following this thread.

Why eval() and not EVALUATE_TEMPLATE()? ~ And whilst were on this subject, whats the difference between using either of these vs. A5_EVAL_EXPRESSION()?
I had read (at least understood/interpreted) elsewhere on this forum, that EVALUATE_TEMPLATE() was the correct function to use...

Are these all redundant functions?