I am working on Angular app. I tried to use ng-if and switch inside ng-repeat but didn't succeed. I have data like:
**[{"_id":"52fb84fac6b93c152d8b4569",
"post_id":"52fb84fac6b93c152d8b4567",
"user_id":"52df9ab5c6b93c8e2a8b4567",
"type":"hoot",},
{"_id":"52fb798cc6b93c74298b4568",
"post_id":"52fb798cc6b93c74298b4567",
"user_id":"52df9ab5c6b93c8e2a8b4567",
"type":"story",},
{"_id":"52fb7977c6b93c5c2c8b456b",
"post_id":"52fb7977c6b93c5c2c8b456a",
"user_id":"52df9ab5c6b93c8e2a8b4567",
"type":"article",},**
$scope.comments = data mentioned above
and my Html like :
<div ng-repeat = "data in comments">
<div ng-if="hoot == data.type">
//differnt template with hoot data
</div>
<div ng-if="story == data.type">
//differnt template with story data
</div>
<div ng-if="article == data.type">
//differnt template with article data
</div>
</div>
How can I achieve this thing in Angular?
Try to surround strings (hoot, story, article) with quotes ':
<div ng-repeat = "data in comments">
<div ng-if="data.type == 'hoot' ">
//different template with hoot data
</div>
<div ng-if="data.type == 'story' ">
//different template with story data
</div>
<div ng-if="data.type == 'article' ">
//different template with article data
</div>
</div>
This one is noteworthy as well
<div ng-repeat="post in posts" ng-if="post.type=='article'">
<h1>{{post.title}}</h1>
</div>
I will suggest move all templates to separate files, and don't do spagetti inside repeat
take a look here:
html:
<div ng-repeat = "data in comments">
<div ng-include src="buildUrl(data.type)"></div>
</div>
js:
var app = angular.module('plunker', []);
app.controller('MainCtrl', function($scope) {
$scope.comments = [
{"_id":"52fb84fac6b93c152d8b4569",
"post_id":"52fb84fac6b93c152d8b4567",
"user_id":"52df9ab5c6b93c8e2a8b4567",
"type":"hoot"},
{"_id":"52fb798cc6b93c74298b4568",
"post_id":"52fb798cc6b93c74298b4567",
"user_id":"52df9ab5c6b93c8e2a8b4567",
"type":"story"},
{"_id":"52fb7977c6b93c5c2c8b456b",
"post_id":"52fb7977c6b93c5c2c8b456a",
"user_id":"52df9ab5c6b93c8e2a8b4567",
"type":"article"}
];
$scope.buildUrl = function(type) {
return type + '.html';
}
});
http://plnkr.co/edit/HxnirSvMHNQ748M2WeRt?p=preview
Related
I have an ng-repeat that has an ng-if attached to it, with a child element that I am changing with an ng-click. The code looks something like the following:
<div ng-repeat="object in objects" ng-if="show">
<div ng-click="show = !show">Show</div>
</div>
Lets say I had 2 objects, it would load two repeated divs, and there would be two 'show' elements. When I click show, it will only remove one of the repeated elements from the page. I need it to remove both. Thoughts?
If you want to hide all I would wrap all of it in an outer div and place the "ng-if" there.
<div ng-if="show">
<div ng-repeat="object in object">
<div ng-click="show = !show">Show</div>
</div>
</div>
I would however advise to place any logic that modifies data in the TS file instead of in the html view.
Your template is almost correct, the only thing that is worth mentioning is that:
The scope created within ngIf inherits from its parent scope
using prototypal inheritance.
The main caveat of prototypal inheritance is that setting a primitive value on the child scope shadows the value on the parent scope. There are different approaches of how to avoid this, see the code snippet below:
angular.module('app', [])
.controller('mainController', function mainController($scope) {
var ctrl = this;
$scope.show = true;
$scope.showList = {value: true};
$scope.objects = [{}, {}, {}];
$scope.toggleShowVar = function(){
$scope.show = !$scope.show;
};
ctrl.show = true;
});
<!-- JS -->
<script src="https://code.jquery.com/jquery-3.2.1.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.4/angular.js"></script>
<body ng-app="app">
<div class="container" ng-controller="mainController as $mainCtrl">
<p>This will not work due to scope prototypal inheritance:</p>
<div ng-if="show">
<div ng-repeat="object in objects">
<div ng-click="show = !show">Show {{show}}</div>
</div>
</div>
<p>Using "controller as" will help us:</p>
<div>
<div ng-repeat="object in objects" ng-if="$mainCtrl.show">
<div ng-click="$mainCtrl.show = !$mainCtrl.show">Show {{$mainCtrl.show}}</div>
</div>
</div>
<p>Or simply using "dot in the model":</p>
<div>
<div ng-repeat="object in objects" ng-if="showList.value">
<div ng-click="showList.value = !showList.value">Show {{showList.value}}</div>
</div>
</div>
<p>Or using controller method for toggle:</p>
<div>
<div ng-repeat="object in objects" ng-if="show">
<div ng-click="toggleShowVar()">Show {{show}}</div>
</div>
</div>
<p>Or using $parent to change it in the controller's scope:</p>
<div>
<div ng-repeat="object in objects" ng-if="$parent.show">
<div ng-click="$parent.$parent.show = !$parent.$parent.show ">Show {{$parent.show}}</div>
</div>
</div>
</div>
</body>
Aim :- To display only Single Object data.
Do I have to use ng-repeat to get the object ?
I'm relatively new to angular. Is there a better way to do this?
Html View :-
<div ng-controller="dashboardController">
<div ng-repeat="person in persons">
<span class="name">{{person.name}}</span>
<span class="title">{{person.title}}</span>
</div>
</div>
Controller Code :-
.controller('dashboardController', ['$scope', function(scope){
scope.persons = [
{
name:"George Harrison",
title:"Goof Off extraordinaire"
}
];
}])
UPDATE FOR MY FELLOW NOOBS, array vs single data set:
scope.persons = [ <-- that creates an array. Cant believe I forgot that.
scope.persons = { <-- that creates a single data set
scope.persons is an array so you have to use ng-repeat.
if you your data is an object, you don't need to use ng-repeat.
ex:
your controller
.controller('dashboardController', ['$scope', function(scope){
scope.person ={
name:"George Harrison",
title:"Goof Off extraordinaire"
}
}]);
so your html:
<div ng-controller="dashboardController">
<div>
<span class="name">{{person.name}}</span>
<span class="title">{{person.title}}</span>
</div>
This can serve your cause with current Json Structure :
<div ng-controller="dashboardController">
<div>
<span class="name"> {{persons[0].name}} </span>
<span class="title"> {{persons[0].title}} </span>
</div>
</div>
Normally if you were only getting one item , it would be an object
$scope.beatle = {
name:"George Harrison",
title:"Goof Off extraordinaire"
}
then reference that directly in view
{{beatle.name}}
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 $scope.data changes, the rendered HTML changes too.
I can't comment but it would be helpful if you could share the template you are using and be more specific in your request :)
I newly start to use angular.but I have some problem to loading my directive.
I want to load my directive as soon as page loaded.
where I load data-show directive
<div class="row">
<div class="col-md-12">
<article class="row" ng-controller="DataCtrl">
<input type="button" ng-click="getDataList()" >
<h1>Some Content Here</h1>
<ul id="home" bread-crumbs></ul>
<ul class="thumbnails">
<li ng-repeat="data in list" class="col-md-5">
<show-data data="data"/>
</li>
</ul>
</article>
</div>
</div>
showData directive:
app.directive('showData', function () {
return{
restrict: 'E',
replace:true,
templateUrl: 'views/directives/datas.directive.html',
scope: {
data: "="
},
controller:'DataCtrl'
}
})
and template I used in:
<div class="well hoverwell">
<div class="row">
<h2 class="col-md-4">{{data.name}}</h2>
</div>
<div class="row">
<span class="col-md-1">Code:</span>
<span class="col-md-1">{{data.id}}</span>
</div>
<div class="row">
<span class="col-md-1">accountability:</span>
<span class="col-md-1">{{data.parent}}</span>
</div>
<div class="row">
<span class="col-md-1"> :</span>
<span class="col-md-1">{{data.definition}}</span>
</div>
</div>
and my controller
'use strict';
angular.module('app')
.controller('DataCtrl', function ($scope, DataService, $log) {
$scope.getDataList = function () {
var list = DataService.getDataList(1);
list.then(
function (result) {
$log.info(result);
$scope.dataList = result;
}, function (status) {
$log.error(status)
$scope.msg = "error " + status + " has been occur,please report to admin ";
});
};
});
and when I run my app it does not work .
when I watch it in chorome development tools my directive is comment
what is my problem.How can I call this directive as soon as page load.
thx
As you already noticed, you see empty list because your dataList in ng-repeat is not filled yet.
But you have some errors in your code:
First of all - you should never use one controller twice. So you need to create separate controller for your directive.
replace directive parameter is deprecated, better not to use it.
In your DataCtrl you set the dataList variable: $scope.dataList = result;, but in HTML you refer to list variable: <li ng-repeat="data in list" class="col-md-5">.
Maybe that example will help you to figure out with your code.
I am trying to show exact content when I click on data from ng-repeat.
<div ng-repeat="trailSpot in trail.wayPoints">
<a ng-click="viewState.showSpotDetails = !viewState.showSpotDetails">
<p>Spot {{$index + 1}}. {{trailSpot.wpName}}</p>
</a>
<p >{{trailSpot.wpDescription}}</p>
</div>
When I click the first wpName, I want to show wpDescription only about the first wpName on another div. What should I put in that div.
<div class="panel-body" ng-show="viewState.showSpotDetails">
<div>
???
</div>
</div>
Anybody has any tips on what I am trying to do?Thank you!
Just pass the object to assign the property like this:
http://jsfiddle.net/wLs8axLj/
JS
var app = angular.module('itemsApp',[]);
app.controller('ItemsCtrl',function($scope) {
$scope.items = [
{name:'Test 1',details:'Test 1 Details'},
{name:'Test 2',details:'Test 2 Details'}
];
$scope.showDetails = function(i) {
$scope.item_details = i.details;
};
});
HTML
<div ng-app="itemsApp" ng-controller="ItemsCtrl">
<ul>
<li ng-repeat="i in items" ng-click="showDetails(i)">{{i.name}}</li>
</ul>
<hr>
{{item_details}}
</div>