Get Display Value Using Variable for Field Value

[rchadek]

So, I have a UI Page with the code below in the HTML box and I want to get the Display Value of the 'channel' variable from the 'oo_line_item' GlideRecord.

Rather than writing a 'getDisplayValue' for every case, I'm trying to condense the code so that the field I'm trying to get the display value for is determined dynamically.

I can see that I'm getting the correct value assigned to the 'channel' variable. But this line isn't working: oo_line_item.channel.getDisplayValue();

Is it possible to run the getDisplayValue() method on a dynamic field value?

${ var site = 'site_oo_' }

<j:choose>

                        <j:when test="${ oo_line_item.property.getDisplayValue()   == 'Austin' }">

                              ${ var market = 'austin'; }        

                        </j:when>

                        <j:when test="${ oo_line_item.property.getDisplayValue()   == 'Charlotte' }">

                              ${ var market = 'charlotte'; }        

                        </j:when>

                        <j:when test="${ oo_line_item.property.getDisplayValue()   == 'Dayton' }">

                              ${ var market = 'dayton'; }        

                        </j:when>

</j:choose>

${ var channel = site.concat(market); }

${ var channel_display = oo_line_item.channel.getDisplayValue(); }

<div class="oo-site-channel">

            ${ channel_display }

</div>

[Chuck Tomasi]

Hi Ryan,

Aren't all fields dynamic values? 🙂

Since you just declared channel, it's not going to have a getDisplayValue() method. That's something that comes along with many of the ServiceNow objects & properties. Not knowing what site and market are, perhaps you could use

${var channel = site.concat(market.getDisplayValue()); }

also, take a look at the Switch statement in Jelly instead of lots of if or when statements... The first the videos in this playlist might help.

TechNow - YouTube

[rchadek]

Mr. Tomasi!

I'm honored to be talking to you. Love the YouTube series! Still new to ServiceNow and Jelly. I'll work on restructuring this logic into a switch statement.

I tried that suggestion but it didn't work. Basically, the 'property' variable determines which channel field displays on the form. So, in this example, it might be:

site_oo_austin

site_oo_charlotte

site_oo_dayton

So, for Austin, I would want:

<div class="oo-site-channel">

            ${ oo_line_item.site_oo_austin.getDisplayValue(); }

</div>

I could put those divs into each <j:when> like so:

<j:when test="${ oo_line_item.property.getDisplayValue()   == 'Austin' }">

        <div class="oo-site-channel">

                      ${ oo_line_item.site_oo_austin.getDisplayValue(); }

        </div>

</j:when>

But it seems like that would produce a bunch of redundant code - which I'm trying to avoid.

To simplify, should something like this work?

<j:when test="${ oo_line_item.property.getDisplayValue()   == 'Austin' }">

            ${ var VARIABLE = 'site_oo_austin'; }        

</j:when>

${ oo_line_item.VARIABLE.getDisplayValue(); }

[Chuck Tomasi]

Step 1: Get it working with the 'static' solution. As you learn, new methods may appear that let you do this dynamically and reduce repeating code. At this point I don't have a solution.

Thank you for the kind words! Glad you enjoy the videos.