angularjs - How to use a dynamic value with ngClass

Question

I'm trying to apply a class name that's the same as a scope variable.

For example:

<div ng-class="{item.name : item.name}">

So that the value of item.name is added to the class. This doesn't seem to do anything though. Any suggestions on how to do this?

Thanks!

EDIT:

This is actually being done within a select, using ng-options. For example:

<select ng-options="c.code as c.name for c in countries"></select>

Now, I want to apply a class name that has the value of c.code

I found the following directive, which seems to work, but not with interpolation of the value:

angular.module('directives.app').directive('optionsClass', ['$parse', function ($parse) {
  'use strict';

  return {
    require: 'select',
    link: function(scope, elem, attrs, ngSelect) {
      // get the source for the items array that populates the select.
      var optionsSourceStr = attrs.ngOptions.split(' ').pop(),
      // use $parse to get a function from the options-class attribute
      // that you can use to evaluate later.
          getOptionsClass = $parse(attrs.optionsClass);

      scope.$watch(optionsSourceStr, function(items) {
        // when the options source changes loop through its items.
        angular.forEach(items, function(item, index) {
          // evaluate against the item to get a mapping object for
          // for your classes.
          var classes = getOptionsClass(item),
          // also get the option you're going to need. This can be found
          // by looking for the option with the appropriate index in the
          // value attribute.
              option = elem.find('option[value=' + index + ']');

          // now loop through the key/value pairs in the mapping object
          // and apply the classes that evaluated to be truthy.
          angular.forEach(classes, function(add, className) {
            if(add) {
              angular.element(option).addClass(className);
            }
          });
        });
      });
    }
  };

}]);

Answer 1

Better later than never.

<div ng-class="{'{{item.name}}' : item.condition}">

yes. ' and {{ for classname.