Angularjs: Create a new scope property inside a directive - angularjs

Question

The value is never shown on the DOM and i'm just trying to see if this way works..
What i am trying to do is create a new scope value inside the directive and show it to the DOM
app.directive("rest", ["restFactory", function($rest){
return {
restrict: "A",
scope: {
uri: "#rest",
},
link: function(scope){
scope.$rest = [];
$rest.batch(scope.uri)
.then(function(data){
scope.$rest = data;
});
}
}
}]);
the data i am trying to show comes from a function that returns a promise, and with the promise comes the data i want to use in the DOM
the HTML is coded like this:
<div rest="accounts">
<div ng-repeat="data in $rest">
{{data.id}}
</div>
</div>
this is the first directive i ever did.

Answer 1

I made this plunker to explain why your directive doesn't work.
<div rest="accounts">
<!-- You can't access the directive variable $rest from here
The directives variables are only available on it's template. -->
<div ng-repeat="data in $rest">
{{data.id}}
</div>
</div>
This will work:
app.directive("restTwo", function() {
return {
restrict: "A",
scope: {},
// It will work. I put the template in here.
// You can only access the directive variables from it's template
template: '<div ng-repeat="data in $rest">{{data.id}}</div>',
link: function(scope, el, attr) {
console.log(attr.rest); // output = accounts
//data
scope.$rest = [{
'id': 1,
'name': 'John Doe'
}, {
'id': 2,
'name': 'Johana Doe'
}];
console.log(scope.$rest);
}
}
});
I suggest you to make a factory and make your api call's in it like this:
app.factory('myFactory', function($http) {
// GET example
this.get = function(string) {
return $http({
method: 'GET',
url: 'https://api.github.com/search/repositories?q=' + string
});
}
// Your request here
this.yourRequest = function(uri) {
// return $rest.batch(uri);
}
return this;
});
And in your controller:
app.controller('MainCtrl', function($scope, myFactory) {
$scope.myData = [];
myFactory.get('tetris').then(function successCallback(response) {
// this callback will be called asynchronously
// when the response is available
$scope.myData = response.data.items;
}, function errorCallback(response) {
// called asynchronously if an error occurs
// or server returns response with an error status.
});
});
View:
<div ng-repeat="data in myData">
{{data.id}}
</div>
If you REALLY want to use a directive for this (I do not recommend):
Directive:
app.directive("restThree", function() {
return {
restrict: "A",
scope: {
'data': '='
},
link: function(scope, el, attr) {
//console.log(attr.rest); // output = accounts
//data
scope.$rest = [{
'id': 1,
'name': 'John Doe'
}, {
'id': 2,
'name': 'Johana Doe'
}];
scope.data = scope.$rest;
}
}
});
View:
<div rest-three="accounts" data="directiveData">
<div ng-repeat="data in directiveData">
{{data.id}}
</div>
</div>