AngularJS data binding checkboxes to object if checked - javascript

I have a JSON object which I am repeating with ng-repeat, the keys are strings, and the values are an array. I am listing each of the values as a checkbox. I would like to create a second object which contains a list of only the checkboxes that are checked. I want to preserve the structure of the object with keys and values.
I'm unsure how to bind this to a model properly so that the structure is preserved.
http://jsfiddle.net/NDFc2/3/
This is my HTML
<h3 >Dynamic data binding in AngularJS</h3>
<div ng-app ng-controller="Controller" class="container">
<h4>Inputs</h4>
<ul ng-repeat="(parent, values) in inputs">
<span>{{parent}} : </span>
<li ng-repeat="value in values"><label>{{value}}
<input type="checkbox" ng-model="output[parent]" ng-checked="output[parent]" value="value" >
</input></label>
</li>
</ul>
<h4>Outputs</h4>
<ul ng-repeat="(key,value) in inputs">
<li>
{{key}} : {{output[key]}}
</li>
</ul>
</div>
and my JS
function Controller($scope) {
$scope.output = {};
$scope.inputs = {'category': ['one','two','three'], 'color':['blue','green']};
}
Is there some simple way to do this? I have the feeling that I'm missing something minor and this will all work nicely.

My examples have your angular logic in the recommended syntax (non-global). There were also several issues with your markup that I have corrected.
In this example, ng-model="x" is a placeholder that I don't use, but ng-model must be present or an error is thrown. I am using ng-change to handle the link between the checkboxes and $scope.outputs.
Live demo here (click).
Markup:
<div ng-app="myApp" ng-controller="myCtrl">
<h3 >Dynamic data binding AngularJS</h3>
<h4>Inputs</h4>
<ul>
<li ng-repeat="(typeKey, typeVal) in inputs">
<span>{{typeKey}} : </span>
<ul>
<li ng-repeat="value in typeVal">
<label>{{value}}
<input
type="checkbox"
ng-model="x"
ng-change="setOutput(typeKey, $index, value)"
>
</label>
</li>
</ul>
</li>
</ul>
<h4>Outputs</h4>
<ul ng-repeat="(key,value) in inputs">
<li>{{key}} : {{outputs[key]}}</li>
</ul>
</div>
JavaScript:
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
$scope.outputs = {};
$scope.inputs = {
'category': ['one','two','three'],
'color':['blue','green']
};
$scope.setOutput = function(typeKey, $index, value) {
$scope.outputs[typeKey] = $scope.outputs[typeKey] || [];
$scope.outputs[typeKey][$index] = value;
};
});
Another Solution
Live demo here (click).
First, I used ng-init to dynamically add the first-level properties from inputs to outputs. Then you just needed to set your ng-model and ng-checked properties to the correct location in outputs.
Markup:
<div ng-app="myApp" ng-controller="myCtrl">
<h3 >Dynamic data binding AngularJS</h3>
<h4>Inputs</h4>
<ul>
<li
ng-repeat="(typeKey, typeVal) in inputs"
ng-init="outputs[typeKey] = outputs[typeKey] || {}">
<span>{{typeKey}} : </span>
<ul>
<li ng-repeat="value in typeVal">
<label>{{value}}
<input
type="checkbox"
ng-model="outputs[typeKey][value]"
ng-checked="outputs[typeKey][value]"
value="outputs[typeKey][value]"
>
</label>
</li>
</ul>
</li>
</ul>
<h4>Outputs</h4>
<ul ng-repeat="(key,value) in inputs">
<li>{{key}} : {{outputs[key]}}</li>
</ul>
</div>
JavaScript:
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
$scope.outputs = {};
$scope.inputs = {
'category': ['one','two','three'],
'color':['blue','green']
};
});

You need to bind to the value for the parent, as checkboxes don't work like that. Here's an example:
<h3 >Dynamic data binding in AngularJS</h3>
<div ng-app ng-controller="Controller" class="container">
<h4>Inputs</h4>
<ul ng-repeat="(parent, values) in inputs">
<span>{{parent}} : </span>
<li ng-repeat="value in values"><label>{{value}}
<input type="checkbox" ng-model="output[parent][value]" ng+checked="output[parent][value]" value="value" >
</input></label>
</li>
</ul>
<h4>Outputs</h4>
<ul ng-repeat="(key,value) in inputs">
<li>
{{key}} : {{output[key]}}
</li>
</ul>
</div>
And in the controller create the keys beforehand
function Controller($scope) {
$scope.output = { 'category': {}, color: {} };
$scope.inputs = {'category': ['one','two','three'], 'color':['blue','green']};
}
jsfiddle: http://jsfiddle.net/5eeVc/

Have a look at this plunk, i have handled two different scenarios. Just sharing it as a knowledge article
Plunk
<h3>First Scenario <small>Handling JSON source </small></h3>
<div class="container-fluid">
<div class="row">
<div class="col-xs-6 col-sm-6 col-md-6 col-lg-6">
<h4>Available options</h4>
<div ng-repeat="item in itemList">
<mark>{{item.name}}</mark>
<input type="checkbox" ng-model="modelContainer[$index].checked" />
</div>
</div>
<div class="col-xs-6 col-sm-6 col-md-6 col-lg-6">
<h4 class="text-success">Selected options</h4>
<ul>
<li ng-repeat="item in modelContainer | filter: {checked:true}">
{{item.item.name}} X
</li>
</ul>
</div>
</div>
</div>
<br>
<p class="text-danger">itemList</p>
<code>{{itemList}}</code>
<br>
<br>
<p class="text-danger">modelContainer</p>
<code>{{modelContainer}}</code>
<hr>
<h3>Second Scenario <small>Handling map Source </small></h3>
<div class="container-fluid">
<div class="row">
<div class="col-xs-6 col-sm-6 col-md-6 col-lg-6">
<h4>Available options</h4>
<div ng-repeat="item in Maplist">
<mark>{{item}}</mark>
<input type="checkbox" ng-model="modelContainer1[$index].checked" />
</div>
</div>
<div class="col-xs-6 col-sm-6 col-md-6 col-lg-6">
<h4 class="text-success">Selected options</h4>
<ul>
<li ng-repeat="item in modelContainer1 | filter: {checked:true}">
{{item.name}} X
</li>`enter code here`
</ul>
</div>
</div>
</div>

Related

Ng-repeat & Ng-bind-html

Does ng-repeat works inside ng-bind-html?
Where res2 is the StaticPage content. And res is a json file. Notice that I can get the variables from the scope (also print the json Array) but not possible to iterate with the ng-repeat.
Home Controller:
$rootScope.usefulContent = res;
$rootScope.staticContent = $interpolate(res2)($rootScope);
View:
<div ng-controller="homeCtrl" class="headerSize" id="staticPage">
<div ng-bind-html="staticContent"></div>
</div>
Static Page:
<div class="container content-home">
<div class="row">
<div class="col-sm-6">
<div class="row">
<div class="col-xs-12">
<div ng-repeat="(key, value) in usefulContent | groupBy: 'Order'">
{{key}}
</div>
<ul class="list-group" data-ng-repeat="(key, value) in usefulContent | groupBy: 'Order'">
<li class="list-group-item">{{key}}
<ul class="list-group">
<li class="list-group-item child" data-ng-repeat="link in value">
{{ link.SUBSECTION }}
</li>
</ul>
</li>
</ul>
</div>
</div>
</div>
<div class="col-sm-6">
Col 2
</div>
</div>
</div>
JSON:
[
{
"Order": 1,
"SECTION": "HR",
"SUBSECTION": "Administration",
},
{
"Order": 1,
"SECTION": "HR",
"SUBSECTION": "Self Service",
}
]
Thank you.
Angular doesn't compile the html you included automatically.
This post explains how to do it.

Angular ng-repeat inside ng-repeat loop count

I have the following code:
<div ng-repeat="list in [[1,2,3,4], [1,2,3,4]] track by $index">
<div id="{{counter}}" ng-repeat="listChild in list track by $index">
{{listChild}}
</div>
</div>
I want to make counter be the number of the element but relative to the whole parent array. How can I make it work so the divs count continuously and not as two individual arrays. to be something like this:
<div>
<div id="1">
{{listChild}}
</div>
<div id="2">
{{listChild}}
</div>
<div id="3">
{{listChild}}
</div>
<div id="4">
{{listChild}}
</div>
</div>
<div>
<div id="5">
{{listChild}}
</div>
<div id="6">
{{listChild}}
</div>
<div id="7">
{{listChild}}
</div>
<div id="8">
{{listChild}}
</div>
</div>
The code below accounts for varied array lengths within the parent array. $scope.precedingCount tracks the rolling total up to the start of a given inner array
var app = angular.module('myApp', []);
app.controller('myController', function($scope) {
$scope.counter = 0;
$scope.data = [[1,2,3,4], ['a','b','c','d', 'e', 'f'], ['any', 'other', 'data', 'needed']];
$scope.precedingCount = {
0: 0
};
for(var i=1; i<$scope.data.length; i++) {
$scope.precedingCount[i] = $scope.precedingCount[i-1] + $scope.data[i-1].length
}
$scope.combinedIndex = function(oIndx, iIndx) {
return $scope.precedingCount[oIndx] + iIndx
}
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="myApp" ng-controller="myController">
<div ng-repeat="list in data track by $index" ng-init="outerIndex = $index">
<div id="{{combinedIndex(outerIndex, $index)}}" ng-repeat="listChild in list track by $index">
{{listChild}} - {{counter}} - {{outerIndex}} - {{$index}} - {{combinedIndex(outerIndex, $index)}}
</div>
</div>
<br />
<br />
<div>
The count of the previous indices: {{precedingCount}}
</div>
</div>
You could use an external variable that will keep the number of listChild
<div ng-repeat="list in [[1,2,3,4], [1,2,3,4]] track by $index">
<div id="{{counter}}" ng-repeat="listChild in list track by $index" ng-init="counter += 1">
{{listChild}}
</div>
</div

Get value from view to controller in angularjs

I m new in angular.Here is my code :
home.html :
<div ng-repeat="data in datab track by $index">
<ul class="list">
<li class="item" ng-click="singlegolf(la)" ng-model="la">{{data.href}}</li>
</ul>
</div>
And i would like in my console log to display the value of {{data.href}} in my console So i try that in my controller :
$scope.singlegolf = function(la){
console.log(la)
}
But this is not working can someone help me pls ?
Adjust your template:
<div ng-repeat="data in datab track by $index">
<ul class="list">
<li class="item" ng-click="singlegolf(data.href)" ng-model="la">{{data.href}}</li>
</ul>
</div>

How do I append a variable value to an event call in ng-repeat?

I have the following code in the html. In the ng-click="inbox.showView('in: {{category|lowercase}}')" the double braces is not working because it is being considered as a string and not as a variable.
How do I ensure I have the category value in the ng-click event?
<li ng-repeat="category in inbox.categories track by $index">
<a href="#">
<div class="left-row" ng-click="inbox.showView('in: {{category|lowercase}}')" target="_self">
<div class="leftcolumn1"><span class="glyphicon glyphicon-user"></span></div>
<div class="leftcolumn2">{{category}}</div>
<div class="leftcolumn3 email-time" ng-bind="inbox.messageCounts.socialCount"></div>
</div>
</a>
</li>
In the controller:
$scope.inbox = {
categories: ['Name', 'Test'],
showView : function(variable) {
**console.log(variable);**
}
};
In the HTML given the parameter for showView function is object,, hence pass like the below inbox.showView({'in': (category | lowercase) })
<li ng-repeat="category in inbox.categories track by $index">
<a href="#">
<div class="left-row" ng-click="inbox.showView({'in': (category | lowercase) })" target="_self">
<div class="leftcolumn1"><span class="glyphicon glyphicon-user"></span></div>
<div class="leftcolumn2">{{category}}</div>
<div class="leftcolumn3 email-time" ng-bind="inbox.messageCounts.socialCount"></div>
</div>
</a>
</li>

Nested ng-repeat with AngularJS

I cannot seem to get out the values I need from a nested ng-repeat in AngularJS.
I have the following data sent from the server:
[{"Your Turn":[{"gameToken":"sSFK0OHhYa8M4F6Z5Z1uNFnawQNVkZXj1GZyTEeSv2h8gntr9UrEU5FQsR9r8YWMWvjA6tePINbOm2Fc5u8U659QaRK0dju0","friendId":"522eec17e4b088a0a939cfdb","friendName":"Michelle","status":"You are waiting for Michelle Miguelamimio Agoramarketomercado to accept your challenge"}]},{"Their Turn":[{"gameToken":"sSFK0OHhYa8M4F6Z5Z1uNFnawQNVkZXj1GZyTEeSv2h8gntr9UrEU5FQsR9r8YWMWvjA6tePINbOm2Fc5u8U659QaRK0dju0","friendId":"522eec17e4b088a0a939cfdb","friendName":"Michelle Miguelamimio Agoramarketomercado","status":"You are waiting for Michelle to accept your challenge"}]}]
And the following template for the HTML:
<div ng-repeat="turn in data">
<p>{{turn}}</p>
<ul class="list-bare list-inline tab-group">
<li ng-repeat="(key, value) in turn" class="tab tab-active txt-upper {{key | lowercase}}">{{key}}</li>
</ul>
<ul class="list-bare list-users clearfix">
<li class="clearfix" ng-repeat="game in turn">
<div class="avatar-container">
<img class="avatar" ng-src="{{baseUrl}}/shobo/user/avatar/{{game.friendId}}" alt="{{game.friendName}}" />
</div>
<div class="list-users-info">
<h3 class="text-cap">{{game.friendName}}</h3>
<p>{{game.status}}</p>
</div>
<div class="list-users-status txt-center" ng-click="acceptChallenge(game.gameToken,game.friendId)">
<div><i class="icon-chevron-right"></i></div>
</div>
</li>
</ul>
</div>
I am not seeing any of the 'game' values being output from the second ng-repeat and am not sure what i am doing wrong?
<li class="clearfix" ng-repeat="game in turn">
should be
<li class="clearfix" ng-repeat="game in value">
need to make some changes in data and html to make require html
$scope.data=[{
"Title":"Your Turn",
"Turn": [{
"gameToken":"sSFK0OHhYa8M4F6Z5Z1uNFnawQNVkZXj1GZyTEeSv2h8gntr9UrEU5FQsR9r8YWMWvjA6tePINbOm2Fc5u8U659QaRK0dju0",
"friendId": "522eec17e4b088a0a939cfdb",
"friendName": "Michelle",
"status": "You are waiting for Michelle Miguelamimio Agoramarketomercado to accept your challenge"
}]
}, {
"Title":"Their Turn",
"Turn": [{
"gameToken": "sSFK0OHhYa8M4F6Z5Z1uNFnawQNVkZXj1GZyTEeSv2h8gntr9UrEU5FQsR9r8YWMWvjA6tePINbOm2Fc5u8U659QaRK0dju0",
"friendId": "522eec17e4b088a0a939cfdb",
"friendName": "Michelle Miguelamimio Agoramarketomercado",
"status": "You are waiting for Michelle to accept your challenge"
}]
}];
HTML
<div ng-repeat="turn in data">
<ul class="list-bare list-users clearfix">
<h1>{{turn.Title}}</h1>
<li class="clearfix" ng-repeat="game in turn.Turn">
<div class="avatar-container">
<img class="avatar" ng-src="{{baseUrl}}/shobo/user/avatar/{{game.friendId}}" alt="{{game.friendName}}" />
</div>
<div class="list-users-info">
<h3 class="text-cap">{{game.friendName}}</h3>
<p>{{game.status}}</p>
</div>
<div class="list-users-status txt-center" ng-click="acceptChallenge(game.gameToken,game.friendId)">
<div><i class="icon-chevron-right"></i></div>
</div>
</li>
</ul>
</div>
please refer below fiddle
http://jsfiddle.net/U3pVM/1476/

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