How to limit results with ng-repeat? - angularjs

Sorry for the basic question, extremely new to software development and angular in particular. I'm currently making a small app that uses an api to find cinemas near a certain postcode.
I have made a results page that show what films are playing in a certain cinema, but I want to limit the amount of results returned and include a 'Show more films' button.
I have included my html and controller below:
HTML
<div class="main-container">
<fountain-header></fountain-header>
<div class="cinemas-container">
<h2 align="center" class="cinemas-h2">Movies playing here:</h2>
<div class="cinema2" ng-repeat="listing in $ctrl.listings">
<h3 class="cinema-h5">{{listing.title}}</h3>
<ul class="cinema-h4">
<li ng-repeat="time in listing.times">{{time}}</li>
</ul>
</div>
<div class="main-container">
</main>
</div>
<fountain-footer></fountain-footer>
</div>
</div>
ListingsController
function ListingsController($http, $stateParams) {
console.log($stateParams);
console.log($stateParams.cinemaID);
var vm = this;
$http
.get('https://api.cinelist.co.uk/get/times/cinema/' + $stateParams.CinemaID +'?day=1')
.then(function (response) {
console.log(response);
vm.listings = response.data.listings;
});
}
Could I just use limitTo to achieve this?
P.S sorry for the poor information, it's my first question on here.

Please try the following example in the fiddle link -
Using the limitTo filter.
ng-repeat="d in data | limitTo: limitvar"
https://jsfiddle.net/m0q9ju8a/
let me know if this helps.

You can do like this:
HTML
<div class="main-container">
<fountain-header></fountain-header>
<div class="cinemas-container">
<h2 align="center" class="cinemas-h2">Movies playing here:</h2>
<div class="cinema2" ng-repeat="listing in vm.listings | limitTo: vm.limit as results">
<h3 class="cinema-h5">{{listing.title}}</h3>
<ul class="cinema-h4">
<li ng-repeat="time in vm.listing.times">{{time}}</li>
</ul>
</div>
<button ng-hide="results.length === vm.listings.length" ng-click="vm.limit = vm.limit +8">show more...</button>
<div class="main-container">
</main>
</div>
<fountain-footer></fountain-footer>
</div>
</div>
and in youn controller
function ListingsController($http, $stateParams) {
console.log($stateParams);
console.log($stateParams.cinemaID);
var vm = this;
vm.limit = 8;
$http
.get('https://api.cinelist.co.uk/get/times/cinema/' + $stateParams.CinemaID +'?day=1')
.then(function (response) {
console.log(response);
vm.listings = response.data.listings;
});
}

Related

Update view when api get data in Angularjs

So, i have a little problem. I made a tiny webapp that uses the omdb api. The thing is this that when i type in the movie that i'm searching for then press the search button, the view should change to the result.html view and show the data i got from the api.
The api works fine. I got the data to display, but that was in my index.html. Now i have splitted the files by using ng-routes
I can provide you the whole project if you wanna look at it. Maybe i can upload it to a online editor somewhere?
This is my app.js
var myApp = angular.module("myApp", ['ngRoute']);
myApp.config(['$routeProvider', function ($routeProvider) {
$routeProvider.
when('/home', {
templateUrl: 'views/home.html',
controller: 'filmController'
}).
when('/result', {
templateUrl: 'views/result.html',
controller: 'filmController'
}).otherwise({
redirectTo: '/home'
})
}]);
myApp.controller("filmController", function filmController($scope, $http, $window) {
$scope.getData = function () {
var movieTitle = document.getElementById("filmName").value;
var binding = document.getElementsByClassName("ng-binding");
$http
.get("http://www.omdbapi.com/?t=" + movieTitle + "&apikey=526345a6")
.then(function (response) {
var data = response.data;
if (data.Error) {
alert("Film inte funnen");
return false;
}
for (let key in data) {
if (data.hasOwnProperty(key)) {
let element = data[key];
if (element === "N/A") {
data[key] = "Inget hittat";
if (key === "Poster") {
$scope.post = "Ingen poster hittad";
}
}
$scope.url = data;
}
}
if (data.Ratings.length === 0) {
$scope.rate = "Ingen utmärkelse/er hittad";
}
// This api data is printed to the console on the index.html view, i want it in the result view...
console.log(data);
});
};
});
This is my index.html
<body>
<div class="main-content">
<!-- <div class="container">
<div class="row">
<div ng-controller="MyController">
<div ng-repeat="item in larare" class="col-lg-12">
<div class="card">
<img ng-src="/images/{{item.shortname}}.jpg" alt="Bild på {{item.name}}" class="card-img-top">
<div class="card-body">
<h3 class="card-title">{{item.name}}</h3>
<p class="card-text">{{item.reknown}}</p>
</div>
</div>
</div>
</div>
</div>
</div>
</div> -->
<header ng-include="'header.html'"></header>
<main ng-view></main>
</div>
</div>
<script>
var elem = document.getElementsByTagName("body")[0];
if (elem.requestFullscreen) {
elem.requestFullscreen();
console.log("Nu");
} else {
console.log("Error");
}
function updateSite(event) {
window.applicationCache.swapCache();
}
window.applicationCache.addEventListener('updateready',
updateSite, false);
</script>
<script src="./js/formvalidation.js"></script>
</body>
</htm>
And my result view
<div class="show container" ng-show="url.Title">
<div class="poster">
<!-- <img ng-src="{{ url.Poster }}" alt="" /> -->
<img ng-src="{{ url.Poster == 'Inget hittat' ? './images/image_not_found.png' : url.Poster }}">
<p class="text-dark">{{ post }}</p>
</div>
<h2 class="text-dark">{{ url.Title | uppercase}}</h2>
<div class="movie-info">
<p class="text-dark">
<strong>Från:</strong> {{ url.Year }}</p>
<p class="text-dark">
<strong>Rating:</strong> {{ url.Rated }}</p>
<p class="text-dark">
<strong>Utgiven:</strong> {{ url.Released }}</p>
<p class="text-dark">
<strong>Längd:</strong> {{ url.Runtime }}</p>
</div>
<p class="text-dark">
<strong>Skådespelare:</strong> {{ url.Actors }}</p>
<p class="text-dark">
<strong>Regissör:</strong> {{ url.Director }}</p>
<p class="text-dark">
<strong>Utmärkelser:</strong> {{ url.Awards }}</p>
<p class="text-dark">
<strong>Handling: </strong> {{ url.Plot }}</p>
<h4 class="text-dark">
<strong>Utmärkelser</strong>
</h4>
<p class="text-dark ">{{ rate }}</p>
<div ng-repeat="rating in url.Ratings | orderBy: '-Value'">
<p class="text-dark">
<strong>{{ rating.Source + ': ' + rating.Value }}</strong>
</p>
</div>
This is my home view
<section class="text-white">
<img src="./images/background.jpg" alt="Bild på poster från Frankenstein filmen" class="bg-image">
<div class="main container align-middle">
<div class="row text-center justify-content-center section-intro">
<div class="col-6 mb-5">
<h1>Filmtipset</h1>
<h5>Sök efter dina favortfilmer</h5>
</div>
</div>
<form ng-submit="getData()">
<div class="inputSearch mx-auto">
<div class="row justify-content-center">
<div class="col-8">
<div class="form-group">
<label for="filmName">Film</label>
<input class="form-control" type="text" name="filmName" id="filmName" placeholder="Ex. Armageddon" autofocus>
</div>
<input type="submit" class="btn btn-primary btn-lg btn-block btn-info mt-5" onclick="validateForm()" ng-click="'#!/result'">
</div>
</div>
</form>
Just a few notes before we break down the issue you are seeing. It seems like you aren't using angularjs to its full potential. Using a mixture of jquery and angularjs is not best practice and can make debugging very difficult. I would recommend making movieTitle an ng-model, as well as using angularjs's built in form validation. This will allow you to access the movieTitle easily in your controller as well as take advantage of angular's built in form controller and actions.
As for getting the data to your other page, I would add a second controller for that page, then from your filmController, you can pass the movie title as a route param when changing views. In your resultController, you can get the movie title from the route param and then do your api call while initializing the result page/controller.
In your home.html file, we will add ng-model to the input to be more angularjs friendly. Now we can access movieTitle in the controller with $scope.movieTitle. I am also changing the method that should get run on submit to the search() method I have added to the filmController.
home.html
<form ng-submit="search()">
// ... your other html here
<input class="form-control" type="text" name="filmName" id="filmName" ng-model="movieTitle" placeholder="Ex. Armageddon" autofocus>
In your filmController, I would add $location and move the getData() method to a resultController. We will now call search() on form submit, then use $location to switch views to your result view, attaching the movie title as a route param so we can access it in the resultController.
filmController.js
myApp.controller("filmController", function filmController($scope, $http, $location) {
// ... other code you have
// this will be what gets called after the user types a movie title
$scope.search = function () {
var title = $scope.movieTitle; // or using jquery(not recommended)
// this will change location and will produce
// the url: http://[yoursite]/result?movieTitle=title
$location.path('/result').search({movieTitle: title});
}
});
In your newly created resultController, we will get that route param and use it to search for the data.
resultController.js
myApp.controller("resultController", function resultController($scope, $http, $routeParams) {
// the getData method moved to this controller
$scope.getData = function (movieTitle) {
$http
.get("http://www.omdbapi.com/?t=" + movieTitle + "&apikey=526345a6")
// the rest of your code for getData here
};
// I like to make an init method to make it clear what we are initializing
$scope.init = function () {
// this will get the movieTitle from the /result?movieTitle=title part of your url
var movieTitle = $routeParams['movieTitle'];
// now we call the method you have that uses the omdb api
// just modify it to accept the movie title as a param rather than finding it in the html
$scope.getData(movieTitle);
}
// run init method
$scope.init();
});
Finally, you will want to update your app config to have your result route use the resultController we added instead of the filmController.

post.length stays 0 due to loop - AngularJS

I'm trying to add pagination but I can't seem to figure out this last part.
Everything is setup, though my pagination isn't recording the amount of posts that are linked with the user.
Seeing that I'm doing a forEach and if loop and pushing the retrieved items into a empty collection, my 'posts.length' is returning 0.
Hence the pagination only showing page 1/1 and not 1/2 (for example).
Here is my full code:
profileCtrl.js
Here is the $http.get - I'm trying to get all the posts that the logged in user made doing this loop:
app.controller('profileCtrl', function($scope, auth, $http, $log) {
$scope.auth = auth;
$scope.date = auth.profile.created_at;
$scope.pageSize = 5;
$scope.posts= [];
$http.get('URL')
.then(function(result) {
angular.forEach(result.data, function(data, key) {
if(data.userId === auth.profile.user_id) {
$scope.posts.push(data);
}
});
});
});
profile.html
As you can see, I'm trying to get the length of post in posts using total-items="posts.length":
<div class="col-md-8 no-padding-right">
<div class="panel panel-primary">
<div class="list-group-item active text-center">
<h4 class="no-margin-top no-margin-bottom">Recent Activity</h4>
</div>
<a href="#" class="list-group-item" ng-repeat="post in posts| startFrom: (currentPage - 1) * pageSize | limitTo: pageSize | orderBy :'created_at':true">
<div class="row">
<div class="col-md-4">
<div class="thumbnail no-border no-margin-bottom">
<img src="https://placehold.it/150x150" alt="bird" width="150" height="150"/>
</div>
</div>
<div class="col-md-8">
<h4 class="no-margin-top no-margin-bottom"><strong>{{post.birdname}}</strong></
</div>
</div>
</a>
<uib-pagination total-items="posts.length" ng-model="currentPage" max-size="pageSize" boundary-link-numbers="true"></uib-pagination>
</div>
</div>
app.js
I also added a filter in app.js:
app.filter('startFrom', function() {
return function(data, start) {
return data.slice(start);
}
});
When I console.log(posts.length); I keep getting 0 and I'm guessing it's because of the $scope.posts = []; declared on top (profileCtrl.js).
Edit:
After doing a bit of debugging with console.log, I do get the value given when doing this:
$http.get('url')
.then(function(result) {
angular.forEach(result.data, function(data, key) {
if(data.userId === auth.profile.user_id) {
$scope.posts.push(data);
}
});
console.log($scope.posts.length);
});
How should I fix this?
If you're waiting for data to be returned before loading the collection (with pagination) either add a ng-if="posts.length" to the container, or initialise $scope.posts as being null and add ng-if="posts" if you want the list to show when the API returns 0 results. This will prevent Bootstrap's pagination directive being parsed until the data it needs is available.
Edit: After debugging, the following plunkr contains a working implementation: http://plnkr.co/edit/VQjNVK6gRKsCqxVb54nR?p=preview

Pass variable into ng-repeat filter

I'm new to Angular and I'm trying to pass a variable into the filter but I'm having no luck. It works as intended when I hard code the value but it doesn't seem to be accepting the value.
JS
var app = angular.module('footballApp', []);
app.controller("TeamCtrl", function($scope, $http){
$http.get("clubs.php/teams").success(function (data){
$scope.teams = data.team;
}).error(function (){
alert("an error has occured");
});
$http.get("players.php/players").success(function (data){
$scope.players = data.player;
console.log($scope.players);
}).error(function (){
alert("an error has occured");
});
});
HTML
<script type="text/ng-template" id="team-single.html">
<div class="team-box">
<div class="badge">
<img src="logo.png" width="100" height="100"></div>
<div class="team-name">{{x.club_name}}</div>
<p><b>Club Manager:</b> {{x.club_manager}}</p>
<p><b>Ground:</b> {{x.club_ground}}</p>
<p><b>Nickname:</b> {{x.club_nickname}}</p>
<div class="team-p">{{x.club_info}}</div>
<div class="key-players">
Key Players
</div>
<div class="players">
<ul class="player-list">
<li ng-repeat="player in players | filter: { club_name: '{{player.club_name}}' }" data-toggle="modal" data-target="#{{player.id}}">{{player.player_name}}</li>
</ul>
</div>
</div>
</script>
<div class="row teams" ng-controller="TeamCtrl">
<div class="container">
<div class="col-md-4" ng-repeat="x in teams" ng-include="'team-single.html'"></div>
</div>
</div>
Everything works fine apart from the part where I use ng-repeat with a filter to filter the list that shows by club_name. Can anyone tell me where I'm going wrong?
The variable doesn't need to be in curly braces.
<ul class="player-list">
<li ng-repeat="player in players | filter: { club_name: player.club_name }" data-toggle="modal" data-target="#{{player.id}}">{{player.player_name}}</li>
</ul>
e.g. player.club_name instead of '{{player.club_name}}'

AngularJs how to reload a template page after selecting a charater

I am using http.get and i need to reload a template after selecting a character so that my template gives the answer according to what I selected
The code of the template
<div class="container-fluid" ng-controller="CriterioCtrl">
<div id="result"></div>
<div>
Selected Items:
<div ng-repeat="id in selection">
{{id}}
</div>
</div>
<div ng-repeat-start="crit in data" class="row">
<h2 align="center">{{crit.name}}</h2>
<div ng-repeat="caracter in crit.characters" class="col-md-4">
<div type="checkbox" value="{{caracter.id}}" ng-checked="selection.indexOf(caracter.id) > -1" ng-click="clickSelection(caracter.id)">
<a href="#crit" class="thumbnail" ng-click="clickCriterios(caracter.id)">
<h4 align="center">{{caracter.name}}</h4>
<img ng-src="http://skaphandrus.com/{{caracter.image_url}}"/>
</a>
</div>
</div>
</div>
<div ng-repeat-end>
</div>
<!--<button class="btn" ng-click="toggle()">Toggle</button>
<p ng-show="visible">Hello World!</p> codigo de um botao -->
</div>
This code is for the selection
$scope.selection=[];
$scope.clickSelection = function clickSelection(caracterId) {
var idx = $scope.selection.indexOf(caracterId);
// is currently selected
if (idx > -1) {
$scope.selection.splice(idx, 1);
}
// is newly selected
else {
$scope.selection.push(caracterId);
}
var selectedId = $scope.selection;
console.log(selectedId);
// Check browser support
if (typeof(Storage) != "undefined") {
// Store
localStorage.setItem("idSelect", selectedId);
// Retrieve
document.getElementById("result").innerHTML = localStorage.getItem("idSelect");
}
};
This code is the http part in another controller
MyApp.controller('EspeciesCtrl', function ($scope, $http) {
$http({
url: 'someurl',
method: "post",
params: {module_id: localStorage.getItem("idMod"),"characters[]": [localStorage.getItem("idSelect")]}
})
.then(function(res){
$scope.data = res.data;
});
});
This is the code of the template that have to change after the selection
<div class="container-fluid" ng-controller="EspeciesCtrl">
<div class="row">
<div ng-repeat="esp in data" class="col-md-6">
<a href="#infEsp" class="thumbnail" ng-click="clickEspecie(esp.id)">
<h4 align="center">{{esp.name}}</h4>
<img ng-src="{{esp.image_src}}"/>
</a>
</div>
</div>
</div>
How can i do that?
edit 1
If I've correctly understood, you may need to use ng-show (https://docs.angularjs.org/api/ng/directive/ngShow) whose boolean value checks if the user selected anything and show the extra bit of code you need, instead of trying to have another http request.
Also, it seems like you are using $scope.data for both the esp and the crit, so you will end up with the errors.
You probably don't need to reload the template.
You may want to use the data in $scope.data inside the template in order to let Angular manage the update on the view. As soon as the $scope.data changes, the rendered HTML changes too.
I can't comment but it would be helpful if you could share the template you are using and be more specific in your request :)

How do I target just one instance of a nested repeat?

This is probably pretty basic, but I'm going round in circles.
I have a nested controller in a ng-repeat - I would like to trigger an event in an instance of the repeat that will affect only the nested controller in that instance, not the nested controller in all instances.
Here is a basic example to try and make things clearer:
<div ng-controller="PostsCtrl">
<div ng-repeat="post in posts">
<p>{{post.body}}</p>
<div ng-controller="CommentsCtrl">
<div ng-repeat="comment in comments">
<p>{{comments.body}}</p>
<a href ng-click="showComments(post.id)">Show comments</a>
</div
</div>
</div>
</div>
angular.module('myApp')
.controller('PostsCtrl', function ($scope, Restangular) {
var posts = Restangular.all('posts');
posts.getList().then(function(posts) {
$scope.posts = posts;
});
$scope.showComments = function(id) {
$scope.$broadcast('SHOW_COMMENTS', id);
};
});
angular.module('myApp')
.controller('CommentsCtrl', function ($scope, Restangular) {
$scope.$on('SHOW_COMMENTS', function(event, id) {
var post = Restangular.one('posts', id);
post.get().then(function(post) {
$scope.comments = post.comments;
});
});
});
What would happen in this example is that all instances of the comments controller would be populated with the same comments - I just need to be able to target the relevant one. I'm sure I'm missing something pretty fundamental, and probably going about this the wrong way.
Many thanks.
You're broadcasting "SHOW_COMMENTS" to all repeated posts. You need to isolate the scope per Post.
Isolate the scope using ng-controller="PostCtrl".
<div ng-controller="PostsCtrl">
<div ng-repeat="post in posts" ng-controller="PostCtrl">
<p>{{post.body}}</p>
<div ng-controller="CommentsCtrl">
<div ng-repeat="comment in comments">
<p>{{comments.body}}</p>
<a href ng-click="showComments()">Show comments</a>
</div
</div>
</div>
</div>
Move show comments from PostsCtrl to PostCtrl.
angular.module('myApp')
.controller('PostCtrl', function ($scope) {
$scope.showComments = function() {
$scope.$broadcast('SHOW_COMMENTS', $scope.post.id);
};
});
Do you really need to use events? You could use ng-if instead.
Your comments are embedded in each Post anyway so why request them again. In this case you could do like something this...
<div ng-controller="PostsCtrl">
<div ng-repeat="post in posts" ng-controller="PostCtrl">
<p>{{post.body}}</p>
<a href ng-click="toggleComments()">Show comments</a>
<div ng-controller="CommentsCtrl" ng-if="showComments">
<div ng-repeat="comment in post.comments">
<p>{{comments.body}}</p>
</div
</div>
</div>
</div>
Toggle comments...
angular.module('myApp')
.controller('PostCtrl', function ($scope) {
$scope.showComments = false;
$scope.toggleComments = function() {
$scope.showComments = !$scope.showComments;
};
});

Resources