Calling javascript function from Coldfusion

Question

Tried to call a javascript popup window using ColdFusion. Have not been able to do it.

The ColdFusion code is straight forward

<cfif notpaid>
    <script type="text/javascript">
    notpaid();
    </script>
</cfif>

It will pop up a window if a person is "notpaid". I tried it with alert() and it popup the alert box so the problem is not with this ColdFusion code.

One of the associated embedded javascripts is written as:

modalWin = new CreateModalPopUpObject();
modalWin.SetLoadingImagePath("/dev/images/loading.gif");
modalWin.SetCloseButtonImagePath("/dev/images/remove.gif");

function notpaid() {
    modalWin.Draggable=false;
    modalWin.ShowURL('https://www.sample.com/sample.htm', 320, 350, "Heading");
}
function HideModalWindow() {
    modalWin.HideModalPopUp();
    window.document.forms[1].submit();
}

The modalWin.ShowURL is the function that display the popup window and is proven working when it is associated with clicking, i.e. user click on a button and it will pop up the window.

In the new scenario, I am using ColdFusion to call without user interaction, but it won't pop up the window. I believe the problem lies with the javascript function notpaid(). I have tried different ways to no avail. I seen people talking about CF being server-side and javascript being client-side, but I do not know how to make the connection. I know with some proper code, it can be done. What am I missing here? Thanks in advance.

Likely possibilities A) Either the variable is false, so the CFIF block isn't hit. Add a <CFELSE> Message not displayed </CFIF> so you know if that's the problem B) A javascript error is occurring. Check your browser's debugging console for errors C) The code is being used somewhere that doesn't generate any output, like a CFC with output=false. — SOS
– SOS, Commented Dec 16, 2018 at 23:15

Jack · Accepted Answer · 2018-12-17 01:10:09Z

2

I have finally figured it out. By changing the "function notpaid()" to:

notpaid = function() {
    modalWin.Draggable=false;
    modalWin.ShowURL("https://www.sample.com/sample.htm", 320, 350, "Heading");
}

and the pop up worked. Don't know why, but it did the trick.

answered Dec 17, 2018 at 1:10

Jack

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1 Comment

Shawn Over a year ago

Because in function notpaid()... you are creating a function named notpaid, but with cfif notpaid, you are looking for some sort of variable or cf object. When you create notpaid = function()... you're actually creating a variable named notpaid, so cffif sees that it exists.

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