angular directive for personalized data validation

I am trying to create a custom validation directive for my Angular app. The only issue I'm facing is figuring out how to retrieve a value.

<select class="form-control" ng-model="$parent.newSector" ng-options="item.id as item.name for item in sectors" not-empty-array="merchant.sectors"></select>

In the markup above, you can see that I have used a directive called notEmptyArray where I pass an expression (similar to ng-model, but with a different name). How do I access this value within my directive?

directive = function({
  require: "ngModel",
  link: function(scope, element, attributes, control) {
    // How can I access the value of merchant.sectors (which is an array in the scope)?
  }
});

Answer №1

To ensure proper scoping, it is important to isolate the scope in the following manner:

app.directive("nonEmptyCollection",function(){
    return {
        scope:{
            items:"=nonEmptyCollection"
        },
        link: function(scope, element, attributes, control) {
            /* Any data passed to "non-empty-collection" will be accessible 
              inside the items variable */
            console.log(scope.items);    
        }
    }
});

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