CSWP Display Template Item - Include Like / Rating SharePoint control

Question

I'm working with the Content Search Web Part to bring details from Announcements lists up to the home page.  Each of these lists has the Like / Rating Social elements enabled and I would like to surface this on the Item Display Template but can't find
out how.
Is there a SharePoint control or JavaScript that I can use to surface this content?
Thanks

Answer 1

Ok, after searching I've found a solution for this.  It will be a 2 stage solution, the first simply displaying the rating or number of likes, the second actually updating them.
So, stage 1:
1.  You need to login to your Central Administration site and go to your Search Service Application.  Once there, under "Queries and Results", click "Search Schema".  You can apply a filter to help find the relevant managed property, so filter
on "Like" or "Rating".  In this example I wanted to use the number of likes, so after filtering on "Like" I clicked to edit the "LikesCount" managed property.  From the edit page, located the "Main characteristics" heading and ensure that the "Searchable"
checkbox is ticked.  Click "Ok" and run a "Full Crawl" on your content source.
2.  Once this has been done, locate the Display Item Content Template that will be used for the Content Search Web Part.  At the top of this file you will find an <mso:ManagedPropertyMapping /> tag.  In this you want to register the
LikesCount managed property from earlier.  This can be done by copying something similar to below:
&#39;Likes Count&#39;{Likes Count}:&#39;LikesCount&#39;
Further down the template, within the <div> where you can define content you need to setup a variable that reads the LikesCount value.  I also had some trouble reading this value when there were no Likes on an item, == null and isNaN() didn't
seem to work so I added an if statement to check for 0 items.
var likesCount = $getItemValue(ctx, "Likes Count");
if (!(likesCount > 0)) {
    likesCount = 0;
Finally, you can surface this variable into your content by simply using the normal notation.  i.e.
_#= likesCount =#_
I hope this has been of use to some people.  I will be posting an update once I've figured out if it's possible to like the source list item from the CSWP.