What could be causing the data-title attribute to not update in AngularJS?

When utilizing AngularJS and Bootstrap's popover, I have successfully bound to data-content, but am encountering issues with binding to data-title:

<li data-trigger="hover" data-placement="bottom" data-title="{{'Memory limit' | l10n}}" data-content="{{'Memory available for the execution of one testcase, measured in MiB.' | l10n}}">
  <a><i class="fa fa-stack-overflow fa-lg"></i> {{task.memory_limit}} MiB</a>
</li>

This code is resulting in:

Upon inspecting dev-tools, I can see that data-title="Limite di memoria" is present, indicating that it has worked. However, I am puzzled as to why the update is not reflecting in the actual view. Additionally, there are two new empty attributes ('data-original-title' and 'title') appearing in dev-tools which I am unfamiliar with.

javascriptangularjstwitter-bootstrap

Answer №1

The reason for this is that the attribute gets read during the execution of Bootstrap Popover JavaScript, which occurs before Angular updates the binding.

If you wish to utilize this feature, your options are either creating a custom directive or finding an existing one. You may want to check out Angular-UI as they offer a Popover implementation that could be suitable for your needs.

Answer №2

I recently encountered a situation where the data-title attribute was being evaluated before fetching data from the database in my code. To resolve this issue, I made modifications to the existing tooltip.js file by introducing a timeout.

Previously, the tooltip.js looked like this:

directivesModule
.directive('toggle', function($timeout){
  return {
    link: function(scope, element, attrs){
      if (attrs.toggle=="tooltip"){
          $timeout(function() {
              $(element).attr( 'title', scope.$eval(attrs.title));
              $(element).tooltip();
          },0);
      }
      if (attrs.toggle=="popover"){
          $(element).popover();
      }
    }
  };
});

After my modifications, the updated version of tooltip.js now looks like this:

directivesModule
.directive('toggle', function(){
  return {
    link: function(scope, element, attrs){
      if (attrs.toggle=="tooltip"){
         $(element).attr( 'title', scope.$eval(attrs.title));
         $(element).tooltip();
      }
      if (attrs.toggle=="popover"){
        $(element).popover();
      }
    }
  };
});

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