gel is not a function in Catalog Item OnChange in ITIL

Jertay
Tera Contributor

‎07-17-2020 10:24 AM

I'm using a list collector in a catalog item. I need to check if the left bucket is empty on change, if so, enable a second field. I wrote a script that tries to get the left bucket using "gel", but when I run it in the ITIL view, it throws a JavaScript error saying "gel is not a function" and doesn't work. I unchecked "Isolate script" as well. Here's my code:

function onChange(control, oldValue, newValue, isLoading){
  if(isLoading || newValue == ''){
    return;
  }
  var left_bucket = gel('item_select_0'); // This causes the error
  if(left_bucket.options.length==0){
    g_form.setReadOnly('completely_remove', false);
  }
  else{
    g_form.setReadOnly('completely_remove', true);
  }
}
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Jertay
Tera Contributor
In response to Pranav Bhagat

‎07-17-2020 11:15 AM

I should have mentioned that originally "Isolate script" was checked and I tried to use "document.getElementById('item_select_0')" and I got a JavaScript error of "Cannot read property 'getElementById' of null", so I guess it's not recognizing my "document" reference, which is why I unchecked "Isolate script". Any other ideas? Was this fixed with a patch or something?

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Pranav Bhagat
Kilo Sage

‎07-17-2020 10:37 AM

'gel' is simply a shortcut for 'document.getElementById', which is standard javascript.you can turn on isolate scripts and use document.getElementById

https://www.w3schools.com/jsref/met_document_getelementbyid.asp

 

Thanks 

Pranav

Oleg Khodakivs2
Tera Contributor
In response to Pranav Bhagat

‎02-23-2021 04:34 AM

Pranav, why it's not writen in documentation? And all the solusions are make from onChange or some other tolls. 

Why we can't use just the javascript? Like document.getElementById.outerHtml?

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