OnChange variable to make Attachment Mandatory Client Script

[Cory Hitchings]

Hi all, 

I have been looking to write an OnChange client script to make an attachment mandatory when a specific variable has changed.  I don't want to use the onSubmit function. 

I also don't want to enable 'Add Attachment' mandatory on the catalog item itself, only when a variable has been changed. 

For example: When 'Supplier Updates' is selected, a new mandatory selectbox appears, if 'Address' is then selected from the next selectbox, another mandatory selectbox appears, if Remit is selected, this is where an attachment becomes mandatory. 

I am not sure how to enable this in the onChange client script.   Does  anyone have any crafty ideas to make this dream a reality?  Thanks!!

[Ian Mildon]

While this script is onSubmit, it should be able to be modified to an onChange; just modify the getValue to be the variable and value you want as the trigger.

//catalog client script to check for attachement
function onSubmit() {
  
	if(g_form.getValue('<variable name>') == 'yes') && this.document.getElementsByClassName('get-attachment').length == 0) {
		g_form.addErrorMessage(getMessage('attachment_is_mandatory'));

		return false;
	}	
}

[Cory Hitchings]

Thank you very much Ian, looks like it's super close, but getting errors on the script: 

function onChange() {

if(g_form.getValue('please_select_one_supplier_address') == 'remit') && this.document.getElementsByClassName('get-attachment').length == 0) {
g_form.addErrorMessage(getMessage('attachment_is_mandatory'));

return false;
}
}

[Ian Mildon]

I noticed that I have a typo on the IF line; missing parenthesis. Trying to figure out where it's missing from.

[Ian Mildon · Accepted solution]

Now corrected!

//catalog client script to check for attachement
function onSubmit() {
  
	if((g_form.getValue('<variable name>') == 'yes') && this.document.getElementsByClassName('get-attachment').length == 0) {
		g_form.addErrorMessage(getMessage('attachment_is_mandatory'));

		return false;
	}	
}