    $scope.removeAllNodes = function(foreignSource) {
      bootbox.confirm('Are you sure you want to remove all the nodes from ' + foreignSource + '?', function(ok) {
        if (ok) {
          RequisitionsService.startTiming();
          RequisitionsService.removeAllNodesFromRequisition(foreignSource).then(
            function() { // success
              growl.success('All the nodes from ' + foreignSource + ' have been removed, and the requisition has been synchronized.');
              var req = $scope.requisitionsData.getRequisition(foreignSource);
              req.reset();
            },
            $scope.errorHandler
          );
        }
      });
    };