Can I nest whens?

Question

Working in SharePoint, trying to retrieve and process data from multiple lists. The return from the second list is getting paged, which breaks the ordering (as far as I can tell). So, my thought was to LITERALLY nest a new 'when' for this second list access that must loop to gather all the data returned. But I just get a generic 'syntax error'. I have no clue what else to try.

This is what I was trying (that is just a syntax error):

$.when(
    RetrieveProductData())
.then(
    $.when(
        RetrieveMilestoneData("https://<myEmployersProprietaryURL>"))
    .then(
        DisplayReportData)
    .then(function() {
        $("#ProcessingDiv").hide();
    });
);

Anybody have any suggestions? I'm completely stuck...

Thanks.

More info: both RetrieveProductData and RetrieveMilestoneData make $.getJSON calls to proprietary REST URLS. I'm passing the URL into RetrieveMilestoneData, so that I can grab the '__next' URL from returned results, and just recurse back into RetrieveMilestoneData with the '__next' URL as the parameter.

DisplayReportData NEEDS the information from both the RPD and RMD functions to work correctly...

score 0 · Answer 1 · answered Jun 02 '15 at 18:42

you are having not only nested .then, but also two .then after eachother. I think this is not the correct way.

This should work:

$.when(
    RetrieveProductData())
.then(function() {
    $.when(
        RetrieveMilestoneData("https://<myEmployersProprietaryURL>"))
    .then(function() {
        DisplayReportData;
        $("#ProcessingDiv").hide();
    });
});

Can I nest whens?

1 Answers1