angularjs - Angular Sorting with null objects

Question

I need to take records with null values on top , when I'm sorting by ASC

<tr ng-repeat="footballer in footballers=(footballers | orderBy:predicate)">
predicate : ['team.name','id]

Some footballers have no team, so team object == null and team.name==null, and I need to have them on the top

I wanted to rewrite sort function, but I need to save predicate

Answer 1

You can use something like this in your controller:

$scope.nullsToTop = function(obj) {
  return (angular.isDefined(obj.team) ? 0 : -1);
};

And on the HTML:

<tr ng-repeat="footballer in footballers | orderBy:[nullsToTop].concat(predicate)">

This way you can maintain your predicate separately. Just concat the nullsToTop function in the orderBy expression to run it first.

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