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I'm attempting to use a piece of JS that I located here to add some CCS classes to the body tag of my SP site based on the user's groups. The following script works perfectly well when looking at a particular group's membership page. (sites/[mysite]/_layouts/15/people.aspx?MembershipGroupId=XXX)

But, the script throws a Cannot read property 'get_current' of undefined error anywhere else.

The relevant code is below:

jQuery(document).ready(function($){

// generic function to grab user groups from collection. Used to append class names to body tag for CSS styling.
// Inspired by: https://sharepoint.stackexchange.com/questions/89241/user-group-or-role-based-on-logged-in-user-at-client-side-script

function GetGroupCollectionFromCurrentUser(OnSuccess,OnError) {

    var context = SP.ClientContext.get_current();
    var web = context.get_web();
    var currentUser = web.get_currentUser();
    var groups = currentUser.get_groups();

    context.load(groups);
    context.executeQueryAsync(function(){
      OnSuccess(groups)
    },
    OnError);        
}

GetGroupCollectionFromCurrentUser(function(groups){
    var e = groups.getEnumerator();
    while (e.moveNext()) {
       var group = e.get_current();
       var groupClass = (group.get_title()).replace(/\s+/g, '');
       $("body").addClass("group-" + groupClass);              
    }
  },
  function(sender,args){
    console.log('An error occured:' + args.get_message());
  }
);

.... more code, all working.

});

When not producing an error, the body class of the page looks like:

<body ... class="group-groupName group-SecondGroupName" ... >

My question: Is there a better way to call these functions so that I can acheive the desired result? Is there better way to accomplish the same thing?

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The error:

Cannot read property 'get_current' of undefined

usually occurs since sp.js library is not yet loaded when the ClientContext is initialized. Use SP.SOD.executeFunc function to ensure sp.js is loaded.

Example

SP.SOD.executeFunc('sp.js', 'SP.ClientContext', function () { 

    getGroupsFromCurrentUser(function(groups){
       groups.forEach(function(g){
          console.log(g.get_title());               
       });
    },
    function(sender,args){
       console.log('An error occured:' + args.get_message());
    });


});


function getGroupsFromCurrentUser(success,error) {

    var context = SP.ClientContext.get_current();
    var currentUser = context.get_web().get_currentUser();
    var groups = currentUser.get_groups();
    context.load(groups);
    context.executeQueryAsync(function(){
      success(groups.get_data());
    },
    error);        
}
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  • 1
    Thanks @vadim-gremyachev. Worked well! I placed both of these functions outside of the context of the document ready call, and added back the .addClass function where it should go and it now works across all pages. Cheers!
    – Steven Ryan
    Commented May 28, 2015 at 22:47

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