CODEWITHSUNDEEP
javascriptangularjsangularjs-scopeangularjs-filterangular-filters
yuro
yuro

Reputation: 2229

Sorting table columns in AngularJS

The following code for sorting table columns doesn't work. I get an Error message:

Error: $injector:unpr Unknown Provider

Unknown provider: orderbyFilterProvider <-

View:

<table class="table table-bordered table-hover">
  <thead>
    <tr>
      <th><a href="" ng-click="reverse=!reverse;order('lname', reverse)">Lastname</a></th>
      <th><a href="" ng-click="reverse=!reverse;order('fname', reverse)">Firstname</a></th>
      <th><a href="" ng-click="reverse=!reverse;order('maxAge', reverse)">Age</a></th>
    </tr>
  </thead>
  <tbody>
    <tr ng-repeat="item in filteredItems = (nameslist | orderBy:predicate)">
      <td>{{ item.lname }}</td>
      <td>{{ item.fname }}</td>
      <td>{{ item.maxAge }}</td>
    </tr>
  </tbody>
</table>

Ctrl:

//Get request to REST API
$scope.nameslist = resService.getAll();

//sort function
var orderby = $filter('orderby');

$scope.order = function (predicate, reverse) {
   $scope.nameslist = orderby($scope.nameslist, predicate, reverse);
};

/* default */
$scope.order('-maxAge', false);

resService:

...
return {
   getAll: function () {
      return requestService.name.query();
   },
...
}

How could I modify the sort function?

Upvotes: 0

Views: 1352

Answers (2)

Arathi Sreekumar
Arathi Sreekumar

Reputation: 2584

You could use angular's built in orderBy filter, like so for reversing as well:

<table class="table table-bordered table-hover">
  <thead>
    <tr>
      <th><a href="" ng-click="order('lname')">Lastname</a></th>
      <th><a href="" ng-click="order('fname')">Firstname</a></th>
      <th><a href="" ng-click="order('maxAge')">Age</a></th>
    </tr>
  </thead>
  <tbody>
    <tr ng-repeat="item in (nameslist | orderBy:predicate:reverse)">
      <td>{{ item.lname }}</td>
      <td>{{ item.fname }}</td>
      <td>{{ item.maxAge }}</td>
    </tr>
  </tbody>
</table>

And the following order function:

$scope.nameslist = [{maxAge :112,fname:'Amy' ,MiddleName: 'Sue',lname:'Test'},
  {maxAge :15,fname:'Chris' ,MiddleName: 'Deb',lname:'Something'},
  {maxAge :11,fname:'Sue' ,MiddleName: 'Amy',lname:'Abcd'},
  {maxAge :14,fname:'Debby' ,MiddleName: 'Chris',lname:'Try'}
  ];

//sort function
//var orderby = $filter('orderby');
// initializing the filter 
// if you don't want a default filter, you could initialize them to empty
$scope.predicate = 'lname'; 
$scope.reverse = false;

$scope.order = function (filterBy) {
   // if same filter is clicked again, and its not reverse then reverse
   // else just apply the filter
   if ($scope.predicate === filterBy) {
       $scope.reverse = !$scope.reverse;
   } else {
       $scope.reverse = false;
   }
    $scope.predicate = filterBy;
};

The logic behind it is that sending an additional parameter true to the orderBy would reverse it, So we are just using this to reverse.

Also your error could have been because of this line:

<tr ng-repeat="item in filteredItems = (nameslist | orderBy:predicate)">

which should be: 

<tr ng-repeat="item in (nameslist | orderBy:predicate:reverse)">

Here is the plunker that works:

http://plnkr.co/edit/JSoyoCkBwknlAggEwU59?p=preview

Upvotes: 0

RIYAJ KHAN
RIYAJ KHAN

Reputation: 15290

Here what I have tried

Updated html.

<body ng-controller="testCtrl">

    <table class="table table-bordered table-hover">
  <thead>
    <tr>
      <th><a href="" ng-click="reverse=!reverse;predicate = 'lname'">Lastname</a></th>
      <th><a href="" ng-click="reverse=!reverse;predicate = 'fname'">Firstname</a></th>
      <th><a href="" ng-click="reverse=!reverse;predicate = 'maxAge '">Age</a></th>
    </tr>
  </thead>
  <tbody>
    <tr ng-repeat="item in nameslist | orderBy:predicate:reverse">
      <td>{{ item.lname }}</td>
      <td>{{ item.fname }}</td>
      <td>{{ item.maxAge }}</td>
    </tr>
  </tbody>
</table>
</body>



app.controller("testCtrl",['$scope','$filter',function($scope,$filter){
        $scope.nameslist = [{maxAge :112,fname:'first1' ,MiddleName: 'middle1',lname:'last1'},
      {maxAge :15,fname:'first2' ,MiddleName: 'middle1',lname:'last1'},
      {maxAge :11,fname:'first3' ,MiddleName: 'middle2',lname:'last2'},
      {maxAge :14,fname:'first4' ,MiddleName: 'middle3',lname:'last1'}
      ];

There is no need of custom filter.

Here is the Plunker

Upvotes: 1

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