Angular.js: filter ng-repeat by absence in array

All we need is an easy explanation of the problem, so here it is.

I need to filter items in ng-repeat so that only the items which not appear in alreadyAddedValues() array will be shown:

<ul class="dropdown-menu">
    <li ng-repeat="v in values() | filter: { ????? } ">{{value.name}}</li>
</ul>

$scope.values() = function(){
    ................
}

$scope.alreadyAddedValues() = function()
{
    //returns an array
}

The search of an already added value should perform by value.shortName

How to solve :

I know you bored from this bug, So we are here to help you! Take a deep breath and look at the explanation of your problem. We have many solutions to this problem, But we recommend you to use the first method because it is tested & true method that will 100% work for you.

Method 1

You can, for example, use a custom function to do the filtering:

<li ng-repeat="v in values() | filter:filterAlreadyAdded ">{{value.name}}</li>

On the controller:

$scope.filterAlreadyAdded = function(item) {
    // filter logic here...
    // return false if item already added, true otherwise
};

jsfiddle: http://jsfiddle.net/bmleite/5VbCJ/

Note: Use and implement method 1 because this method fully tested our system.
Thank you 🙂

All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0

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