Develop Reference

Event in Angular Controller Only Fires Once

I'm trying to implement an Angular version of an autocomplete textbox. I found some working examples, but none seem to exhibit the behavior I'm getting.
The autocomplete functionality itself works fine. When a suggested item is selected, the control correctly handles the selection. Subsequent uses of the control (typing in the autocomplete box, making a selection) fail to engage the 'selected' event/condition, although the autocomplete bit continues to work.
Here's my module & controller:
var app = angular.module('myapp', ['angucomplete-alt']); //add angucomplete-alt dependency in app
app.controller('AutoCompleteController', ['$scope', '$http', function ($scope, $http) {
//reset users
$scope.Users = [];
$scope.SelectedUser = null;
//get data from the database
$http({
method: 'GET',
url: '/UserRoleAdministration/Autocomplete'
}).then(function (data) {
$scope.Users = data.data;
}, function () {
alert('Error');
})
//to fire when selection made
$scope.SelectedUser = function (selected) {
if (selected) {
$scope.SelectedUser = selected.originalObject;
}
}
}]);
I'm guessing the problem is in there, but I don't know what it is. I include the bit from my view below, although there doesn't seem to be much there to fuss with:
<div class="form-group">
<div ng-app="myapp" ng-controller="AutoCompleteController">
<div angucomplete-alt id="txtAutocomplete" pause="0" selected-object="SelectedUser" local-data="Users" search-fields="RegularName" placeholder="People Search" title-field="RegularName" minlength="2" input-class="form-control" match-class="highlight"></div>
<!--display selected user-->
<br /><br />
<div class="panel panel-default" id="panelResults">
<div class="panel-heading"><h3 class="panel-title">Manage Roles for {{SelectedUser.RegularName}}</h3></div>
<div class="panel-body">
<div class="row">
<div class="col-md-2">
<img src="~/Images/avatar_blank.png" width="100%" />
</div>
<div class="col-md-4">
<div class="row">
<div class="col-md-4">Selected User:</div> <div class="col-md-6">{{SelectedUser.RegularName}}</div>
</div>
</div>
</div>
</div>
</div>
</div>
Any help would be appreciated!
UPDATE
After fixing the mistake Yaser pointed out, I wasn't getting any information regarding the selected object. So I set the page to output the entire object, rather than the specified fields, and I noticed I was getting information about the selected object, and on subsequent attempts as well.
So this worked: {{SelectedUser}}
This did not: {{SelectedUser.Department}}
Then I looked at the object and noticed its format. It had "title" and "description", and description had inside it the key/value pairs.
So now this works: {{SelectedUser.description.Department}}
And that's it.

Because the first time you are setting $scope.SelectedUser as a function but inside that you are rewriting the same one with an object. so next time it is not a function any more, try to rename the function:
$scope.setUser = function (selected) {
if (selected) {
$scope.SelectedUser = selected.originalObject;
}
}

How to display a returned json in angular view?

I am implementing a search in the github repository.
I need to display the information that i get from here: https://api.github.com/search/repositories?q=bootstrap . for instance into a view or HTML
<div ng-app="newsearchApp">
<div ng-controller="MainCtrl">
<form action="#/about" method="get">
<input ng-model="searchText" />
<button ng-click="search()">Search</button>
</form>
</div>
</div>
the code for searching the Github repository;
angular.module('newsearchApp')
.controller("MainCtrl", ["$scope", function($scope) {
$scope.searchText = "";
$scope.search = function() {
console.log($scope.searchText);
var item = $scope.searchText;
// console.log(item)
var GithubSearcher = require('github-search-api');
var github = new GithubSearcher({username: 'test#something.com', password: 'passwordHere'});
var params = {
'term': $scope.searchText
};
//i am not certain about the 'userData'
github.searchRepos(params, function(data) {
console.log(data);
$scope.userData = data; //i am not certain about the 'repoData'
});
} }]);
the problem is here, when populating the json object to HTML
<div ng-repeat="repo in userData | filter:searchText | orderBy:predicate:reverse" class="list-group-item ">
<div class="row">
<div class="col-md-8">
<h4>
<small>
<span ng-if="repo.fork" class="octicon octicon-repo-forked"></span>
<span ng-if="!repo.fork" class="octicon octicon-repo"></span>
<small>{{repo.forks_count}}</small>
</small>
<a href="{{repo.html_url}}" target="_blank" >
{{repo.name}}
</a>
<small>{{repo.description}}</small>
<small>{{repo.stargazers_count}}</small>
<a href="{{repo.open_issues_count}}" target="_blank" >
Open Issues
</a>
<small>{{}}</small>
</h4>
</div>
</div>
</div>
the results are null on the HTML but are not null on the console.
thanks in advance
the results are null

The problem is, that Angular doesn't notice that the GitHub server has answered and doesn't update the view. You have to tell Angular manually to re-render the view. Try calling $scope.$apply():
github.searchRepos(params, function(data) {
console.log(data);
$scope.userData = data;
$scope.$apply();
});
If you'd make your request to the GitHub API with Angulars $http service, then this would not be needed - you'll only need $scope.$apply() if something asynchronous happens which doesnt live in the "Angular world" - for example things like setTimeout, jQuery ajax calls, and so on. That's why there are Angular wrappers like $timeout and $http.
More details: http://jimhoskins.com/2012/12/17/angularjs-and-apply.html

The GitHub API can be accessed using the AngularJS $http service:
app.controller("myVm", function($scope,$http) {
var vm = $scope;
var url = "https://api.github.com/search/repositories?q=bootstrap"
$http.get(url).then(function onSuccess(response) {
vm.data = response.data;
console.log(vm.data);
})
})
HTML
<div ng-app="myApp" ng-controller="myVm">
<div ng-repeat="item in data.items">
{{item.full_name}}
</div>
</div>
The DEMO on JSFiddle

Since you're not using the Angular $http service, angular is not aware of the changes. You need to manually tell Angular to re-render and evaluate by using
$scope.$apply();

Angular JS === comparison not working

I am trying to compare the value passed from the url to a controller to a field in a json file.
galleryItem.html
<div class="filter-box">
<ul class="filter list-inline text-center" ng-repeat="gal in ParentData">
<li></li>
</ul>
</div>
<div class="container-fluid">
<div class="row">
<div class="portfolio-box" ng-repeat="x in data">
<div class="col-sm-4">
<div class="item-img-wrap">
<img ng-src={{x.url}} class="img-responsive" alt="">
<div class="item-img-overlay">
<a href={{x.url}} class="show-image">
<span></span>
</a>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
The updated controller:
controllers.controller('GalleryViewCtrl', function GalleryViewCtrl($scope, $http, $stateParams) {
$scope.pageName = '';
$scope.Description = '';
$scope.GalleryID = $stateParams.id;
$http.get('/data/galleryItems.json')
.then(function (response) { $scope.ParentData = response.data.galleries });
$http.get('/data/galleryItemImages.json')
.then(function (response) {
$scope.data = response.data.images.galleryIdentifier === $stateParams.id;
});
});
I verified the correct value is being passed in to the controller, the values are static and so is the data being passed from the json file. I placed an if statement to check for null as suggested as well. I removed it temporarily to reduce what I'm working with.
If I remove the === $stateParams.id i get all of the images returned and displayed correctly.
If I replace $stateParams.id with a value that I know is in the list (4 or '4') i do not get anything returned. I also tried the value for the last item in the list.
There are no errors (loading scripts, reading json etc.) and all of the values are correct when I'm debugging.
I am still new to this and there is so much documentation with different solutions it all gets very confusing. If anyone has any ideas they would be greatly appreciated.

You are loading data to the $scope.data when the ajax call returns some data. I am assuming your view code is calling the galleryFiltered even before that. May be try to add a null check before returning the value from the method.
$scope.galleryFiltered = function () {
if($scope.data!=null)
{
return $scope.data.galleryIdentifier === $scope.GalleryID;
}
return false;
};

Remember that $http service returns a promise so your $scope.data will be undefined (or holding current state) until $http.get('/data/galleryItemImages.json') will return a success callback function and assign new value to $scope.data from response.
If you'll run $scope.galleryFiltered() before promise gets resolved you will have $scope.data == undefined or whatever data is stored on $scope.data at the time or $scope.galleryFiltered() execution.

reusable templates/markup in angularJs

I am working on a project using angularJS, however I'm a bit unsure of the best way to approach this in the framework.
I have an endpoint that makes a request and searches for some data using some parameters, and upon success, it will loop through the table and return matching items.
For each item I make an HTTP call to get some data and the success response would create the scope that would be used in the markup.
How can I reuse the same HTML in the loop AND set/re-set the scope each time so the markup gets generated for each item...or perhaps theres a better 'angular specific' approach.. Thanks
HTML (this is the markup i would like to reuse)
<div class="carouselWrapperOuter">
<div class="carouselWrapper">
<ul rn-carousel rn-carousel-controls rn-carousel-duration="300" class="image carouselholder">
<li ng-repeat="stuff in homeData" class="square" data-url="{{stuff.id}}" ng-click="trackOpen()">
<div class="squareThumb">
<img ng-src="{{stuff.artwork_url}}">
</div>
<div class="itemTitle">{{stuff.title}}</div>
</li>
</ul>
</div>
</div>
JS
angAppFactory.getUser({
where: {
endpointname: "sourcename",
username: "user123"
}
}).success(function(success) {
console.log(success)
//returns a couple of results which would make the following request AND use the markup/set the scope for each item
for (var i = 0; i < success.results.length; i++) {
var endpointid = success.results[i].sourceid
$http({
method: 'GET',
url: 'http://someurl.com'
}).success(function(data) {
//console.log(data)
//scope being set
$scope.homeData = data;
}).error(function() {
alert("error");
});
}
});

AngularJS not processing JSON correctly

I have a Play framework project using AngularJS for its views. The controller responsible for querying data makes 2 requests, each returning a JSON block. The first one works correctly and it's displayed properly. The second one's data is pretty much destroyed by Angular (example below).
The JSONs are created correctly prior to being rendered, as it's shown through the application's log.
This is the correct JSON (taken from the Play Framework routed method's log):
{"id":5,"name":"auditoria","url":null,"version":1,"methods":[]}
This is how AngularJS prints it. It tokenizes :
[{},{"0":"a","1":"u","2":"d","3":"i","4":"t","5":"o","6":"r","7":"i","8":"a"},{},{},{"length":0}]
And here's the controller:
app.controller("ViewCtrl", [ "$scope", "$resource", "$routeParams", "apiUrl",
function($scope, $resource, $routeParams, apiUrl) {
var ServiceList = $resource(apiUrl + "/services");
$scope.services = ServiceList.query(); //JSON is displayed properly
if ($routeParams.id) {
jsonServicoQuery = apiUrl + "/services/" + $routeParams.id
var Service = $resource(jsonServicoQuery);
$scope.currentService = Service.query(); //JSON is butchered
}
} ]);
Here's the HTML:
<div class="row">
<div class="col-md-3">
<div class="bs-sidebar hidden-print" role="complementary">
<ul class="nav bs-sidenav">
<li><i class="fa fa-plus"></i></li>
<li ng-repeat="s in services| orderBy:'name'">{{s.nome}}
<ul>
<li ng-repeat="m in s.methods| orderBy:'name'">{{m.name}}
[{{m.id}}]</li>
</ul></li>
</ul>
</div>
</div>
<div class="col-md-9" role="main">
<div class="bs-docs-section">
<div class="page-header">
<!-- displaying the whole currentService JSON for debugging purposes -->
{{currentService}}
</div>
</div>
</div>
</div>
Anybody has any clues about what am I doing wrong?
Update: Service.query() executes the method routed by Play Framework.
Route configuration:
GET /api/services/:id controllers.Services.show(id: String)
And controllers.Services.show(id: String) implementation:
public static Result show(String id) {
Service s = Service.findById(id);
//JSON displayed here is correct, log below
Logger.info("At Services show, json " + Json.toJson(s));
return ok(Json.toJson(s));
}
Log:
[info] application - At Services show, json {"id":5,"name":"auditoria","url":null,"version":1,"methods":[]}

I managed to find the problem, I should have used $scope.currentService = Service.get(); instead of $scope.currentService = Service.query();