Ionic Framework with External JSON File - javascript

i have a problem that i don't know how to solve, i have an IONIC Tabs Template and want to add an external JSON File to be showing instead of the template friends list that appears by default.
This is my app.js file
.state('tab.friends', {
url: '/friends',
views: {
'tab-friends': {
templateUrl: 'templates/tab-friends.html',
controller: 'FriendsCtrl'
}
}
})
.state('tab.friend-detail', {
url: '/friends/:friendId',
views: {
'tab-friends': {
templateUrl: 'templates/friend-detail.html',
controller: 'FriendDetailCtrl'
}
}
})
This is my controllers.js file
.controller('FriendsCtrl', function($scope, Friends) {
$scope.friends = Friends.all();
})
.controller('FriendDetailCtrl', function($scope, $stateParams, Friends) {
$scope.friend = Friends.get($stateParams.friendId);
})
This is my services.js file, that access a JSON file:
.factory('Friends', function($http) {
var friends = [];
return {
all: function(){
return $http.get("http://yanupla.com/apps/ligajaguares/equipos.json").then(function(response){
friends = response.data;
console.log(friends);
return friends;
});
},
get: function(friendId) {
for (var i = 0; i < friends.length; i++) {
if (friends[i].id === parseInt(friendId)) {
return friends[i];
}
}
return null;
}
}
});
And finally my tabs-friends.hm template:
<ion-view view-title="Friends">
<ion-content>
<ion-list>
<ion-item class="item-remove-animate item-avatar item-icon-right" ng-repeat="friend in friends" type="item-text-wrap" href="#/tab/friends/{{friend.id}}">
<!--img ng-src="{{chat.face}}"-->
<h2>{{friend.name}}</h2>
<p>{{friend.bio}}</p>
</ion-item>
</ion-list>
</ion-content>
</ion-view>
I can see the JSON file object in my browser using console.log, but i can't see anything else in the body of my template only the "Friends" title.
What 'm missing here?

I would guess that angular is accessing $scope.friends while it is still a promise. Have you tried resolving the variable by using the resolve statement in the .state-definition?
app.js should look something like this:
.state('tab.friends', {
url: '/friends',
views: {
'tab-friends': {
templateUrl: 'templates/tab-friends.html',
controller: 'FriendsCtrl',
resolve: {
allfriends: function(Friends) {
return Friends.all(); }
}
}
}
})
and the controller would be:
.controller('FriendsCtrl', function($scope, allfriends) {
$scope.friends = allfriends;
})
I think you need to use $q for correctly resolving, so the Service needs to look like this:
.factory('Friends', function($http, $q) {
var friends = [];
return {
all: function(){
var dfd = $q.defer();
$http.get("http://yanupla.com/apps/ligajaguares/equipos.json").then(function(response){
friends = response.data;
console.log(friends);
dfd.resolve(friends);
});
return dfd.promise;
},
get: function(friendId) {
for (var i = 0; i < friends.length; i++) {
if (friends[i].id === parseInt(friendId)) {
return friends[i];
}
}
return null;
}
}
});
For more information on this, i recommend reading this formula from ionic: http://learn.ionicframework.com/formulas/data-the-right-way/
Additionally, this helped me a great deal in understanding the concept of promises:
http://andyshora.com/promises-angularjs-explained-as-cartoon.html

Related

Cannot run the controller

I'm trying to do a simple app with ionic framework to learn how to use Firebase and manipulate data. I did everything, but my console is showing nothing. I cannot run my controller. Does anyone know what is happening?
I injected everything, at least I think I did. I guess the error is in the resolve. Is there anyone that can save me with this, please?
Here's my Controller:
(function(){
'use strict';
angular
.module('hsAdmin.users')
.controller('UsersCtrl', UsersCtrl);
UsersCtrl.$inject = ['$scope', '$state','Users' ];
function UsersCtrl($scope, $state,Users ){
var vm = angular.extend(this, {
ChangeState: ChangeState,
Users:Users
});
function ChangeState(state){
$state.go(state);
}
}
})();
Here's my Module:
(function(){
'use strict';
angular
.module('hsAdmin.users', [
'ionic',
'ngCordova',
'hsAdmin.users'
])
.config(function($stateProvider) {
$stateProvider
.state('app.users', {
url: '/users',
views: {
'menuContent': {
templateUrl: 'templates/users/users.html',
controller: 'UsersCtrl as vm'
}
}
,resolve:{
Users: function(UsersService) {
return UsersService.GetUsers().$loaded().then(function(user){
return user;
}).catch(function(error){
console.log('Error when get users: ' + error);
})
}
}
});
})
})();
Here's my Service
(function(){
'use strict';
angular
.module('hsAdmin.users')
.factory('UsersService', UsersService);
UsersService.$inject = ['fb', '$firebaseArray', '$firebaseObject','$q','$rootScope'];
function UsersService(fb, $firebaseArray, $firebaseObject,$q,$rootScope){
var service = {
GetUsers:GetUsers,
GetUsersById:GetUsersById
};
return service;
function GetUsers(){
var query = fb.child('/users');
return $firebaseArray(query);
}
function GetUsersById(id){
var query = fb.child('/users/' + id);
return $firebaseObject(query).$loaded();
}
}
})();
You are creating your hsAdmin.users module and then injecting it into itself, that is likely what is causing your problem. Try the below:
(function(){
'use strict';
angular
.module('hsAdmin.users', [
'ionic',
'ngCordova',
// 'hsAdmin.users'
])
.config(function($stateProvider) {
$stateProvider
.state('app.users', {
url: '/users',
views: {
'menuContent': {
templateUrl: 'templates/users/users.html',
controller: 'UsersCtrl as vm'
}
}
,resolve:{
Users: function(UsersService) {
return UsersService.GetUsers().$loaded().then(function(user){
return user;
}).catch(function(error){
console.log('Error when get users: ' + error);
})
}
}
});
})
})();
Try to implement controller in following way.
(function() {
'use strict';
var UsersCtrl = function($scope, $state, Users) {
var vm = angular.extend(this, {
ChangeState: ChangeState,
Users: Users
});
function ChangeState(state) {
$state.go(state);
}
}
UsersCtrl.$inject = ['$scope', '$state', 'Users'];
angular.module('hsAdmin.users').controller('UsersCtrl', UsersCtrl);
})();

Data for listing page and detail page without 2 API calls

I have set up a service to return a listing of clients from my API. Using UI-router, I can successfully pass a client's id to the details state - however, it seems unnecessary here to make another API call to retrieve a single client when I have all the necessary data in my controller.
What is the best way to use the ID in my detail state URL to show data for that client? Also - if a user browses directly to a client detail URL - I'll need to then make a call to the API to get just that client data - or is there a better way?
EDIT: I am not looking to load the two views on the same 'page', but completely switch views here, from a listing page to a detail page.
Routes in App.js
$stateProvider
.state('root', {
abstract: true,
url: '',
views: {
'#': {
templateUrl: '../partials/icp_index.html',
controller: 'AppController as AppCtrl'
},
'left-nav#root': {
templateUrl: '../partials/left-nav.html'
},
'right-nav#root': {
templateUrl: '../partials/right-nav.html'
},
'top-toolbar#root': {
templateUrl: '../partials/toolbar.html'
}
/*'footer': {
templateUrl: '../partials/agency-dashboard.html',
controller: 'AppController as AppCtrl'
}*/
}
})
.state('root.clients', {
url: '/clients',
views: {
'content#root': {
templateUrl: '../partials/clients-index.html',
controller: 'ClientsController as ClientsCtrl'
}
}
})
.state('root.clients.detail', {
url: '/:clientId',
views: {
'content#root': {
templateUrl: '../partials/client-dashboard.html',
//controller: 'ClientsController as ClientsCtrl'
}
}
})
// ...other routes
Service, also in app.js
.service('ClientsService', function($http, $q) {
this.index = function() {
var deferred = $q.defer();
$http.get('http://api.icp.sic.com/clients')
.then(function successCallback(response) {
console.log(response.data);
deferred.resolve(response.data);
},
function errorCallback(response) {
// will handle error here
});
return deferred.promise;
}
})
And my controller code in ClientsController.js
.controller('ClientsController', function(ClientsService) {
var vm = this;
ClientsService.index().then(function(clients) {
vm.clients = clients.data;
});
});
And finally, my listing page clients-index.html
<md-list-item ng-repeat="client in ClientsCtrl.clients" ui-sref="clients-detail({clientId : client.id })">
<div class="list-item-with-md-menu" layout-gt-xs="row">
<div flex="100" flex-gt-xs="66">
<p ng-bind="client.name"></p>
</div>
<div hide-xs flex="100" flex-gt-xs="33">
<p ng-bind="client.account_manager"></p>
</div>
</div>
</md-list-item>
You can use inherited states like suggested here.
$stateProvider
// States
.state("main", {
controller:'mainController',
url:"/main",
templateUrl: "main_init.html"
})
.state("main.details", {
controller:'detailController',
parent: 'main',
url:"/:id",
templateUrl: 'form_details.html'
})
Your service does not change.
Your controllers check if the Model has been retrieved:
app.controller('mainController', function ($scope, ClientsService) {
var promise = $scope.Model ? $q.when($scope.Model) : ClientsService.index();
promise.then(function(data){
$scope.Model = data;
});
})
app.controller('detailController', function ($q, $scope, ClientsService, $stateParams) {
var promise = $scope.Model ? $q.when($scope.Model) : ClientsService.index();
promise.then(function(data){
$scope.Model = data;
$scope.Item = data[$stateParams.id];
});
})
See
http://plnkr.co/edit/I4YMopuTat3ggiqCoWbN?p=preview
[UPDATE]
You can also, if you must, combine both controllers:
app.controller('mainController', function ($q, $scope, ClientsService, $stateParams) {
var promise = $scope.Model ? $q.when($scope.Model) : ClientsService.index();
promise.then(function(data){
$scope.Model = data;
$scope.Item = data[$stateParams.id];
});
})
I would change the service to cache the data. With $q.when() you can return a promise from a variable. So you save your response in a variable, and before doing the API call you check if the cache has been set. If there is any cache, you return the data itself. Otherwise, you do the usual promise call.
.service('ClientsService', function($http, $q) {
var clients = null;
this.getClient = function(id) {
if (clients !== null) {
return $q.when(id ? clients[id] : clients);
}
var deferred = $q.defer();
$http.get('http://api.icp.sic.com/clients').then(function(response) {
clients = response.data;
deferred.resolve(id ? clients[id] : clients);
}, function (response) {
// will handle error here
});
return deferred.promise;
}
})

Destroying AngularJS $Http.Get Cache

I can't figure out how to destroy my cache to get a new list from my server.
When I get the first list, it's work perfect, but after inserting informations to my database and sending another get to my server, the browser only show the cached version of my list, without the new data.
I tried to use cacheFactory like this:
$cacheFactory.get('$http').removeAll();
but it doesn't worked.
Here is my angular Module, Service and Controller.
Module myApp
var app = angular.module('myApp', ['ngRoute', 'LocalStorageModule', 'angular-loading-bar', 'smart-table']);
app.config(function ($routeProvider) {
$routeProvider.when("/home", {
controller: "homeController",
templateUrl: "/web/views/home.html"
});
$routeProvider.when("/cidades", {
controller: "cidadesController",
templateUrl: "/web/views/basico/cidades/cidades.html"
});
$routeProvider.otherwise({ redirectTo: "/home" });
});
app.config(function ($httpProvider) {
$httpProvider.interceptors.push('authInterceptorService');
});
app.run(['authService', function (authService) {
authService.fillAuthData();
}]);
cidadesService
'use strict';
app.factory('cidadesService', ['$http', '$cacheFactory', function ($http, $cacheFactory) {
var serviceBase = 'http://localhost:22207/';
var serviceFactory = {};
var _getCidades = function () {
$cacheFactory.get('$http').removeAll(); //This doesn't worked
return $http.get(serviceBase + 'api/cidades/getall').then(function (results) {
return results;
});
};
serviceFactory.getCidades = _getCidades;
return serviceFactory;
}]);
cidadesController
'use strict';
app.controller('cidadesController', ['$scope', 'cidadesService', function ($scope, service) {
$scope.cidade = {
id: "",
nome:"",
};
$scope.message = "";
$scope.getCidades = function () {
service.getCidades().then(function (results) {
$scope.cidades = [];
$scope.collection = [];
$scope.cidades = results.data;
$scope.collection = [].concat($scope.cidades);
}, function (err) {
$scope.message = err.error_description;
});
};
//Initializing the list
$scope.getCidades();
}]);
I really don't see anything wrong, but in any case you can add unique param for your request to prevent caching
like
$http.get(serviceBase + 'api/cidades/getall?unique=' + new Date().getTime())

ionic : Master Detail returns only id

I'm running out of idea right now. Everything seems fine, but when Im trying to inherit master data into the details view nothing really shows when I consoled except for the id.
Console Output : Object {id: "78"}
Here's my code :
Config
.state('app.home', {
url: "/home",
views: {
'menuContent': {
templateUrl: "templates/home.html",
controller: 'PostHomeCtrl'
}
}})
.state('app.posthome', {
url: "/home/:id",
views: {
'menuContent': {
templateUrl: 'templates/post.html',
controller: 'PostDetailCtrl'
}
}})
Factory
.factory('Posts', function($http){
var blogs = []; //Private Variable
return {
GetBlog: function(){
return $http.get('path/to/resources').then(function(response){
blogs = response;
return response;
});
},
GetPost: function(postId){
for(i=0;i<blogs.length;i++){
if(blogs[i].id == postId){
return blogs[i];
}
}
return null;
}
}})
Controller
.controller('PostHomeCtrl', function(Posts, $scope){
Posts.GetBlog().then(function(blogs){
$scope.blogs = blogs.data;
console.log(blogs.data);
});
})
.controller('PostDetailCtrl', function(Posts, $stateParams, $scope){
var postId = $stateParams;
$scope.blog = Posts.GetPost(postId);
console.log(postId);
});
nvm just figured it out, turns out my I forgot to add .data at my blog = response . So it becomes blog=response.data instead of blog=response. Thanks

Angular js display name based on selected item and url path

I am starting out on the angular seed. I have a json file that displays items like the below.
{
"id":"1",
"name":"Spain",
"abbrev":"esp"
}
When I click on a country in the list I want to the display the details such as the name for this item.
I have this working as shown below.
/* app.js */
'use strict';
// Declare app level module which depends on views, and components
angular.module('myApp', ['ngRoute','myApp.controllers','myApp.services'])
.config(['$routeProvider', function($routeProvider) {
$routeProvider.when('/', {
templateUrl: 'templates/view1.html',
controller: 'CountryCtrl'
});
}])
.config(['$routeProvider', function($routeProvider) {
$routeProvider.when('/:name', {
templateUrl: 'templates/view2.html',
controller: 'CountryCtrl'
});
}])
.config(['$routeProvider', function($routeProvider) {
$routeProvider.otherwise({redirectTo: '/'});
}]);
/* services.js */
angular.module('myApp.services', [])
.factory('Countries', ['$http', function($http) {
var Countries = {};
Countries.name = '';
Countries.listCountries = function () {
return $http.get('../api/countries');
},
Countries.ChangeName = function (value) {
Countries.name = value;
}
return Countries;
}]);
/* controllers.js */
angular.module('myApp.controllers', [])
.controller('CountryCtrl', ['$scope', 'Countries', '$location', function($scope, Countries,$location) {
listCountries();
function listCountries() {Countries.listCountries()
.success(function (data, status, headers, config) {
$scope.countries = data.countries;
})
.error(function(data, status, headers, config) {
$scope.status = 'Unable to load data: ' + error.message;
});
}
$scope.name = Countries.name;
$scope.changeView = function(countryName,indx){
$location.path(countryName);
$scope.name = Countries.ChangeName(countryName);
}
}]);
/* templates/view1.html */
<ul>
<li ng-repeat="country in countries">
<div ng-click="changeView(country.name,$index)">{{country.name}}</div>
</li>
</ul>
/* templates/view2.html */
{{name}}
What I can't get to work is that if I go to http://www.example.com/app/#/ then navigate to spain in the list then I get taken to http://www.example.com/app/#/esp and {{name}} gets outputted as esp.
However if I navigate straight to http://www.example.com/app/#/esp without first clicking on spain in the list I get no value in my $scope.name
How can I achieve this?
I want the name to also be set based on the location path if it is available.
I know that $location.$$path will get me /esp however I don't really think this is the best idea to use this incase the url builds out to something bigger eg http://www.example.com/app/#/esp/events
can I some how access the index or id of the item so that I can then access the data like
{{countries[0].name}}
where 0 is id of esp - 1.
What is the best approach?
Mate, there are a couple of issues with your app.
Your service retains "state" although is only used to retrieve information
You're using the same controller to 2 different views (bad practice)
$scope.status = 'Unable to load data: ' + error.message; --> Error is not defined
There are a couple of js errors too, like strayed commas and stuff
Anyways, here's a revised version of your code. Fiddle
// Instantiate your main module
var myApp = angular.module('myApp', ['ngRoute']);
// Router config
myApp.config(['$routeProvider',
function($routeProvider) {
$routeProvider
.when('/', {
templateUrl: 'templates/view1.html',
controller: 'CountryListCtrl'
})
.when('/:id', {
templateUrl: 'templates/view2.html',
controller: 'CountryCtrl'
})
}
]);
// Your Factory. Now returns a promise of the data.
myApp.factory('Countries', ['$q',
function($q) {
var countriesList = [];
// perform the ajax call (this is a mock)
var getCountriesList = function() {
// Mock return json
var contriesListMock = [{
"id": "0",
"name": "Portugal",
"abbrev": "pt"
}, {
"id": "1",
"name": "Spain",
"abbrev": "esp"
}, {
"id": "2",
"name": "Andora",
"abbrev": "an"
}];
var deferred = $q.defer();
if (countriesList.length == 0) {
setTimeout(function() {
deferred.resolve(contriesListMock, 200, '');
countriesList = contriesListMock;
}, 1000);
} else {
deferred.resolve(countriesList, 200, '');
}
return deferred.promise;
}
var getCountry = function(id) {
var deferred = $q.defer();
if (countriesList.length == 0) {
getCountriesList().then(
function() {
deferred.resolve(countriesList[id], 200, '');
},
function() {
deferred.reject('failed to load countries', 400, '');
}
);
} else {
deferred.resolve(countriesList[id], 200, '');
}
return deferred.promise;
}
return {
getList: getCountriesList,
getCountry: getCountry
};
}
]);
//Controller of home page (pretty straightforward)
myApp.controller('CountryListCtrl', ['$scope', 'Countries',
function($scope, Countries) {
$scope.title = 'Countries List';
$scope.countries = [];
$scope.status = '';
Countries.getList().then(
function(data, status, headers) { //success
$scope.countries = data;
},
function(data, status, headers) { //error
$scope.status = 'Unable to load data:';
}
);
}
]);
// controller of Country page
// Notice how we use $routeParams to grab the "id" of our country from the URL
// And use our service to look for the actual country by its ID.
myApp.controller('CountryCtrl', ['$scope', '$routeParams', 'Countries',
function($scope, $routeParams, Countries) {
$scope.country = {
id: '',
name: '',
abbrev: ''
};
var id = $routeParams.id;
Countries.getCountry(id).then(
function(data, status, hd) {
console.log(data);
$scope.country = data;
},
function(data, status, hd) {
console.log(data);
}
);
}
]);
In your "CountryCtrl", if you include $routeParams and use $routeParams.tlaname, you will have access to the tlaname. You can then use that to initialize your data.

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