Loop Container and Set Label

I am looping through some replicant containers and setting the label of the container based on the value of a text item in the container. I have the following code:


function sortingCallout() {

  var lvl1_children = IWDatacapture.getItem("/node_attributes/lvl_1").getChildren();
  var lvl1_num_children = lvl1_children.length;

  for (i=1; i<=lvl1_num_children; i++){
   var lvl1 = IWDatacapture.getItem("/node_attributes/lvl_1[" + i + "]");
   var lvl1_label = IWDatacapture.getItem("/node_attributes/lvl_1[" + i + "]/path").getValue();
   lvl1.setLabel(lvl1_label);

   lvl2_children = IWDatacapture.getItem("/node_attributes/lvl_1[" + i + "]/lvl_2").getChildren();
   lvl2_num_children = lvl2_children.length;

   for (j=1; j<=lvl2_num_children; j++){    
    var lvl2 = IWDatacapture.getItem("/node_attributes/lvl_1[" + i + "]/lvl_2[" + j + "]");
    var lvl2_label = IWDatacapture.getItem("/node_attributes/lvl_1[" + i + "]/lvl_2[" + j + "]/path").getValue();
    lvl2.setLabel(lvl2_label);
   }
  }
 }

What is happening: this function is being called from a callout button on my DCT. It loops into the first replicant - lvl_1 - fine. Sets the first label. Loops into the second level of replicants - lvl_2 - and sets the label on the first replicant.

And then it fails. I get a JS error in my browser complaining about something being null. If I throw in an alert after the lvl2.setLabel(lvl2_label); line, I don't see the alert - ever. So it's executing that line of code and failing... On what? I actually see the label changed properly...

Any help always appreciated.

Thanks.

TS 7.2.1
Windows 2003

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Comments

nipper

Search for setlabel

This thread may help.

You are likely hitting some timing issues.

Adam Stoller

You aren't consistent about declaring your variables - try this slightly modified (cleaner perhaps) version of your posted code:

function sortingCallout() {
    var lvl1_children = IWDatacapture.getItem("/node_attributes/lvl_1").getChildren();

    for (var i in lvl1_children) {
        var lvl1_label = lvl1_children.getChildByName("path").getValue();
        lvl1_children.setLabel(lvl1_label);
        var lvl2_children = lvl1_children.getChildByName("lvl_2").getChildren();

        for (var j in lvl2_children) {
            var lvl2_label = lvl2_children.getChildByName("path").getValue();
            lvl2_children.setLabel(lvl2_label);
        }
    }
}

The above assumes that there is, in fact, a 'path' element within both the lvl_1 replicant container and lvl_2 replicant sub-container

RonaldV

Can't this be done by setting item.isTitle to true in the dct?

Adam Stoller

Can't this be done by setting item.isTitle to true in the dct?

Hmm - quite possible. That attribute was added around the 6.7x time-frame (post 6.5.0 at least) and I cannot say that I've ever used it so I'm not sure what the exact behavior is. The setLabel code, on the other hand, I have used; but if the isTitle attribute works that's certainly simpler.