How to retrieve element from array in a jelly tag

[mahudg2]

Sorry I understand this might be a very simple question, but despite my research I've hit a wall here. Here is my code below

<g:evaluate>
var gr = new GlideRecord('u_uksystemstatus');
var statuses = new Array();
var servicestates = new Array();
var i = 0;
gr.query();
while(gr.next())
{
statuses[i] = gr.u_servicetitle.toString();
servicestates[i] = gr.u_servicestate.toString();
i = i + 1;
}
</g:evaluate>

<j:forEach var="jvar_word" items="${words}">
   <p>${jvar_word}</p>
</j:forEach>
<j:forEach var="jvar_status" items="${statuses}">
                         <li>${jvar_status} ${servicestates}</li>
</j:forEach>
</j:jelly>

My goal   is to display each status in the statuses array with the corresponding service state, but I'm not sure how to retrieve a specific element in an array that corresponds to the element that is being retrieved in the <j:forEach> tag. Does anyone have any ideas?

Thanks!

[James_Neale]

Hey,

You don't actually need to put those in an array. You can simply use a while loop.

<g:evaluate>   

   var gr = new GlideRecord('u_uksystemstatus'); 

   gr.query();   

</g:evaluate>   

<j:forEach var="jvar_word" items="${words}">   

   <p>${jvar_word}</p>   

</j:forEach>

<ul>

<j:while test="${gr.next()}">

   <li>${gr.u_servicetitle} ${gr.u_servicestate}</li>

</j:while>

</ul>

Otherwise, you are looking for the indexVar in the forEach loop.

<j:forEach var="jvar_status" items="${statuses}" indexVar="jvar_i">

 <g:evaluate var="jvar_s" expression="statuses[${jvar_i}]" />

 <g:evaluate var="jvar_ss" expression="servicestates[${jvar_i}]" />

 <li>${jvar_s} ${jvar_ss}</li>   

</j:forEach>

You cannot use standard object notation in the Jelly print tags ${} or $[]. You need to evaluate it first.

- James

[conmic]

Can you please help me with this:

I have an array of object, and I want now to remove all duplicate objects... do you have any ideas how to do this inside <g:evaluate>?

[James_Neale]

There is an OOB method, but it doesn't retain order:

var arr = [1,2,3,4,5,6,3,5,6];

var au = new ArrayUtil();

au.unique(arr);

// [1,2,4,3,5,6]

[conmic]

doesn't work, the result returns "undefined(blablabla...)" either because it's objects in the array or because the script include is not properly called. I guess it's because the ArrayUtil.unique() cannot handle objects.

[James_Neale]

Last one... it's probably best if you open this one up in a new post to save hijacking this thread...

Strange. It should handle objects just fine.

You might be better of restructuring your code to use an object for uniqueness. I assume there is a unique value on your objects? If so, then create an object of those unique values and check that before you add the object to the array. e.g.

var uniqueMap = {};

var uniqueArr = [];

... loop start

if (!(obj.uniqueVal in uniqueMap)) {

   uniqueMap[obj.uniqueVal] = true;

   uniqueArr.push(obj);

}

... loop end