AngularJS - How to structure a custom filter with ng-repeat to return items conditionally
I have an ng-repeat that prints list items. I want to write a custom filter so that the list item will print, only if a condition is true.
I seem to have the structure wrong as it seems the variables are not getting passed through to the filter.
index.php
<div ng-show="userDetails.username" class="nav">
<p>Menu</p>
<li ng-repeat="menuItem in menu | matchAccessLevel:$rootScope.userDetails.accessLevel:menuItem.minAccess | orderBy:'position' ">
<a ng-href="/angular-app/app/{{menuItem.id}}">{{menuItem.name}}</a>
</li>
</div>
app.js
userApp.filter('matchAccessLevel', function() {
return function( item, userAccessLevel, minAccessLevel ) {
if( userAccessLevel >= minAccessLevel ) {
return item;
}
}
});
Filters don't work on individual items in the array, they transform the entire array into another array.
userApp.filter('matchAccessLevel', function() {
return function( items, userAccessLevel) {
var filtered = [];
angular.forEach(items, function(item) {
if(userAccessLevel >= item.minAccess) {
filtered.push(item);
}
});
return filtered;
};
});
See this plnkr
**always inspect the arguments to a function. It's not always obvious what the values are.*
see filters guide
You can use Array.filter for a more concise solution:
app.filter('matchAccessLevel', function() {
return function( items, userAccessLevel ) {
return items.filter(function(element){
return userAccessLevel >= element.minAccess;
});
}
});
Check on Plunker