Develop Reference

Call an AngularJS function on button click is not working

I have a requirement where I want to call an AngularJS function on button click. So I tried like below
var app2 = angular.module('grdContrl', ['datatables']);
app2.controller('dtAssignVendor', ['$scope', '$http', 'DTOptionsBuilder', 'DTColumnBuilder',
function ($scope, $http, DTOptionsBuilder, DTColumnBuilder) {
$scope.GetFiler = function () {
var strZone = $('#SAPExecutive_R4GState').val();
var strUtility = $('#ddlUtility').val();
$scope.dtColumns = [
DTColumnBuilder.newColumn(null, '').renderWith(function (data, type, full) {
return '<input type="checkbox" class="check" data-object-id="' + full.objectid + '">'
}),
DTColumnBuilder.newColumn("MAINTENANCEZONENAME", "MAINTENANCEZONENAME"),
DTColumnBuilder.newColumn("MAINTENANCEZONECODE", "MAINTENANCEZONECODE")
]
$scope.dtOptions = DTOptionsBuilder.newOptions().withOption('ajax', {
url: AppConfig.PrefixURL + "/App/GetMPFilter",
type: "POST",
data: JSON.stringify({ strZone: strZone, strUtility: strUtility }),
})
.withPaginationType('full_numbers')
.withDisplayLength(10);
}
}])
<button class="btn btn-default customBtn" ng-click="GetFilter();">
<i class="fa fa-filter" aria-hidden="true"></i>
Filter
</button>
---------------------------
<div ng-app="grdContrl">
<div class="flTable" id="dtAssignVendor">
<table id="assignVender" class="mp myTable table table-striped table-bordered" cellspacing="0" width="100%">
</table>
</div>
</div>
I want this to work on the above mentioned button click.

You can not get filter values, because filter button is outside of controller and if you are using datatable then also add dt-option, dt-columns and dt-instance into <table> as attributes.
You have do like this way
<div ng-app="grdContrl" ng-controller="dtAssignVendor"> <!-- COMMON ANCESTOR-->
<button class="btn btn-default customBtn" ng-click="GetFilter();">
<i class="fa fa-filter" aria-hidden="true"></i> Filter
</button>
<div class="flTable" id="dtAssignVendor">
<table id="assignVender" class="mp myTable table table-striped table-bordered" cellspacing="0" width="100%" datatable="" dt-options="dtOptions" dt-columns="dtColumns" dt-instance="dtInstanceNonInvProduct">
</table>
</div>
</div>
Also inject into controller.
app2.controller('dtAssignVendor',function ($scope, $http, DTOptionsBuilder, DTColumnBuilder,DTInstances) {
$scope.GetFiler = function () {
//get input values into scope instead of javascript variable
//var strZone = $('#SAPExecutive_R4GState').val();
//var strUtility = $('#ddlUtility').val();
$scope.strZone = $scope.SAPExecutive_R4GState;
$scope.strUtility = $scope.ddlUtility;
//redraw table on button click
$scope.dtInstanceNonInvProduct.DataTable.draw();
}
$scope.dtOptions = DTOptionsBuilder.newOptions().withOption('ajax', {
url: AppConfig.PrefixURL + "/App/GetMPFilter",
type: "POST",
data: JSON.stringify({ strZone: $scope.strZone, strUtility: $scope.strUtility }),
})
.withPaginationType('full_numbers')
.withDisplayLength(10);
$scope.dtColumns = [
DTColumnBuilder.newColumn(null, '').renderWith(function (data, type, full) {
return '<input type="checkbox" class="check" data-object-id="' + full.objectid + '">'
}),
DTColumnBuilder.newColumn("MAINTENANCEZONENAME", "MAINTENANCEZONENAME"),
DTColumnBuilder.newColumn("MAINTENANCEZONECODE", "MAINTENANCEZONECODE")
]
$scope.dtInstanceNonInvProduct = {};
})

The template of your code should be something like this:
<div ng-app="myApp">
<div controller="ctrl1">
<button ng-click="someFunInCtrl1()">Click Me</button>
...
</div>
<div controller="ctrl2">
<button ng-click="someFunInCtrl2()">Click Me</button>
...
</div>
</div>
You are unable to call GetFilter function because you are calling it from outside controller scope. As #Karim said
you need to use the ng-controller directive and wrap the button inside it

As far as i see you did not bind the controller to your template, you need to use the ng-controller directive and wrap the button inside it (and correct the spelling error on $scope.getFilter as raised in the comments)
<div ng-app="grdContrl" ng-controller="dtAssignVendor"> <!-- COMMON ANCESTOR-->
<button class="btn btn-default customBtn" ng-click="GetFilter();">
<i class="fa fa-filter" aria-hidden="true"></i> Filter
</button>
---------------------------
<div class="flTable" id="dtAssignVendor">
<table id="assignVender" class="mp myTable table table-striped table-bordered" cellspacing="0" width="100%">
</table>
</div>
</div>

Load Data from Database Without Blinking Angular Js

Am loading data from database to a table in html with angualar js. am also using interval so as to make the table reload every 10 seconds to get new data that has just been inputed by other users.
Problem:
The table blinks every time it reloads. making the page look funny like it has a glitch.
What am looking for:
Is there a way i can make the new data just slide in from the top of the table and become number one while the rest re adjust underneath it And become number two, three and so on. i was made to believe Angular Js is magical reason why i opted for it instead of using my usual AJAX
Angular Code
var supDetails = angular.module("supDetails", ['datatables']);
supDetails.controller('supportController', function($scope, $http, $interval) {
$scope.names = [];
$scope.isFirst = true;
$scope.loadData = function() {
var httpRequest = $http({
method: 'GET',
url: 'anfil.php?ins=sup'
}).success(function(data, status) {
console.log('loading..');
$scope.names = data;
if(!$scope.isFirst){
angular.forEach(data,function(key,val){
$scope.names[key] = data[key];
});
}
$scope.isFirst = false;
});
};
$scope.loadData();
// Function to replicate setInterval using $timeout service.
$interval(function () {
$scope.loadData();
}, 10000);
});
My HTML
<!-- /.col -->
<div class="col-md-9" ng-app = "supDetails" ng-controller="supportController">
<div class="box box-primary">
<div class="box-header with-border">
<h3 class="box-title">Messages</h3>
<!-- /.box-tools -->
<div class="box-tools pull-right">
<div class="has-feedback">
<button type="button" ng-click="loadData()" class="btn btn-default btn-sm"><i class="fa fa-refresh"></i></button>
</div>
</div>
</div>
<!-- /.box-header -->
<div class="box-body no-padding">
<div class="mailbox-messages">
<table datatable="ng" class="table table-hover table-striped">
<thead>
<tr>
<th>Stat</th>
<th>Name</th>
<th>Problem</th>
<th>Time</th>
</tr>
</thead>
<tbody>
<tr ng-repeat="x in names">
<td class="mailbox-star"><i class="fa fa-circle text-blue"></i></td>
<td class="mailbox-name">{{x.user_id}}</td>
<td class="mailbox-subject"><b>{{x.ticket_title}}</b> - {{x.subject}}
</td>
<td class="mailbox-date">{{x.ticket_open_date}}</td>
</tr>
</tbody>
<tfoot>
<tr>
<th>Stat</th>
<th>Name</th>
<th>Problem</th>
<th>Time</th>
</tr>
</tfoot>
</table>
<!-- /.table -->
</div>
<!-- /.mail-box-messages -->
</div>
<!-- /.box-body -->
</div>
<!-- /. box -->
</div>
<!-- /.col -->

I think its your css problem which doesn't have a minimum height as you can see in this snippet its not blinking..
If you still want data to appear slide from up to down, You can uncomment the code in the answer, in this way it will remove row one by one from the table and replace it with the new one.
var app = angular.module('myApp', []);
function PeopleCtrl($scope, $http,$interval) {
$scope.people = [];
$scope.isFirst = true;
$scope.loadPeople = function() {
var httpRequest = $http({
method: 'GET',
url: 'https://jsonplaceholder.typicode.com/users'
}).success(function(data, status) {
console.log('loading..');
$scope.people = data;
/* if(!$scope.isFirst){
angular.forEach(data,function(val,key){
$scope.people[key] = data[key];
});
}
$scope.isFirst = false;*/
});
};
$scope.loadPeople();
$interval(function () {
$scope.loadPeople();
}, 10000);
}
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<div ng-app="myApp">
<div ng-controller="PeopleCtrl">
<table class="table">
<tr>
<th>Id</th>
<th>Name</th>
<th>UserNmae</th>
</tr>
<tr ng-repeat="person in people">
<td>{{person.id}}</td>
<td>{{person.name}}</td>
<td>{{person.username}}</td>
</tr>
</table>
</div>
</div>

There are a few ways to solve your problems:
1) Write algorithm, that load your data then compare it with existing data. If there any diffs you, should add just new records to your table.
2) Use WebSockets, they will give you ability to get from server only new records in real-time.

How to access current row data in angular-datatables using templates?

I am using angular-datatables. There is a column Actions which I render using an inline template. I want to access current row data in that template. How do that?
controller
$scope.dtOptions = DTOptionsBuilder.newOptions().withOption('ajax', {
url: '/api/department',
type: 'GET'
})
.withDataProp('data')
.withOption('processing', true)
.withOption('serverSide', true)
.withPaginationType('full_numbers')
.withOption('createdRow', function (row, data, dataIndex) {
return $timeout(function() {
// Recompiling so we can bind Angular directive to the DT
return $scope.$apply($compile(angular.element(row).contents())($scope));
});
})
.withBootstrap();
$scope.dtColumns = [
DTColumnBuilder.newColumn('id').withTitle('ID'),
DTColumnBuilder.newColumn('name').withTitle('Name'),
DTColumnBuilder.newColumn('actions').withTitle('Actions').withOption("searchable", false)
];
view
<div class="hbox hbox-auto-xs hbox-auto-sm" ng-controller="DepartmentsController">
<!-- Inline Template -->
<script type="text/ng-template" id="actions.html">
<button class="btn btn-primary btn-xs"
ng-click="edit(/** CURRENT ROW ELEMENT ID */)"><i class="fa fa-edit"></i> Edit</button>
<button class="btn btn-danger btn-xs"
ng-click="delete()"><i class="fa fa-trash"></i> Delete</button>
</script>
<div class="bg-light lter b-b wrapper-md">
<h1 class="m-n font-thin h3">Departments</h1>
</div>
<div class="wrapper-md">
<div class="panel panel-default">
<div class="panel-body">
<div class="row">
<div class="col-xs-6">
<button class="btn m-b-md btn-md btn-primary " ui-sref="manager.departments.create">
<i class="fa fa-plus"></i> <span class="hidden-sm hidden-xs">Add Department</span></button>
</div>
</div>
<div class="row">
<div class="col-sm-12 m-b-xs">
<table datatable="" dt-options="dtOptions" dt-columns="dtColumns" class="table table-striped b-t b-b">
<thead>
<tr>
<th style="width:20%">ID</th>
<th style="width:60%">Name</th>
<th style="width:20%">Actions</th>
</tr>
</thead>
</table>
</div>
</div>
</div>
</div>
</div>
</div>
Here is plunkr to help you: http://plnkr.co/edit/iAZBof7g6cp68RnM0X8H?p=preview

After hours of struggle, I found the solution. It's quite obvious when you see it.
I created a new scope and added data to it before passing it to $compile in createRow callback. Creating a new scope is necessary to pass unique data to each row. If you simply passed by $scope.row then each row will have the same row equal to the last row processed.
controller
.withOption('createdRow', function (row, data, dataIndex) {
// Create a new scope for each row, otherwise, data will
// not be unique for each row becuase of data bindings
var $newScope = $scope.$new(true);
$newScope.row = data;
// Pass any methods you are using in current scope
$newScope.delete = $scope.delete;
return $timeout(function() {
// Recompiling so we can bind Angular directive to the DT
return $scope.$apply($compile(angular.element(row).contents())($newScope));
});
});
view
<script type="text/ng-template" id="actions.html">
<button class="btn btn-primary btn-xs" ui-sref="manager.departments.edit({id: {{ row.id }} } )"><i class="fa fa-edit"></i> Edit</button>
<button class="btn btn-danger btn-xs" ng-bootbox-confirm="Are you sure you want to delete this department?" ng-bootbox-confirm-action="delete(row.id)"><i class="fa fa-trash"></i> Delete</button>
</script>

I used the above accepted answer, and it worked fine. However, later when we moved to production and the rows per page changed from 20 to 500, I saw significant performance issues through chrome developer tools (Most time spent on hundreds of setTimer and listener events)
I found the official document here which gives us an example as below:
.withOption('createdRow', createdRow);
// ...
function createdRow(row, data, dataIndex) {
// Recompiling so we can bind Angular directive to the DT
$compile(angular.element(row).contents())($scope);
}
This piece of code does not use the $timeout or $apply functions, but still works well. If you run into performance issues as I did, this may help.

Angular ng-click load controller

I'm trying to practice angular and I'm stuck this this.
How do I make ng-click load the displayController? Or am I doing this wrong way?
The Angular
var bible = angular.module('bible', []);
// Load the Books
bible.controller('listController', ['$scope', '$http', function($scope, $http) {
$http.get('books.json').success(function(data) {
$scope.books = data
});
}]);
bible.controller('displayController', function($scope) {
$scope.test = "TEST TEXT";
});
The HTML
<div class="row">
<div class="col-md-12" ng-controller="listController">
<table class="table">
<thead>
<th>Testament</th>
<th>Title</th>
<th>Chapters</th>
</thead>
<tbody>
<tr ng-repeat="book in books">
<td>{{book.testament}}</td>
<td>{{book.title}}</td>
<td>{{book.chapters}}</td>
</tr>
</tbody>
</table>
<div class="display-book" ng-controller="displayController">
{{test}}
</div>
</div>
</div>

You don't need the additional controller there. I guess you want to display additional infos about the clicked book.
Use a reference and ngIf
var bible = angular.module('bible', []);
// Load the Books
bible.controller('listController', ['$scope', '$http', function($scope, $http) {
$scope.selectedBook = null;
$http.get('books.json').success(function(data) {
$scope.books = data
});
}]);
And html:
<div class="row">
<div class="col-md-12" ng-controller="listController">
<!-- will be shown, as long as not book is selected -->
<table data-ng-if="selectedBook == null" class="table">
<thead>
<th>Testament</th>
<th>Title</th>
<th>Chapters</th>
</thead>
<tbody>
<tr ng-repeat="book in books">
<td>{{book.testament}}</td>
<td>{{book.title}}</td>
<td>{{book.chapters}}</td>
</tr>
</tbody>
</table>
<!-- will be shown, when a book got selected -->
<div data-ng-if="selectedBook != null" class="display-book">
<!-- display the selection table again -->
<button data-ng-click="selectedBook = null">Back</button>
{{selectedBook.title}}
</div>
</div>
</div>

Why do you want to call a separate controller cant you implement the functionality in a separate function like below ,
bible.controller('listController', ['$scope', '$http', function($scope, $http) {
$http.get('books.json').success(function(data) {
$scope.books = data
});
$scope.display = function(){
// **YOUR CODE COMES HERE**
}
}]);
<td>{{book.title}}</td>

Paginating an AngularJS blog

I'm trying to paginate my blogroll using AngularJS and the MEAN Stack. I have my Articles (blog posts) controller set up, and I've list.html to display everything. I can either get all the blogs to display, or I can get the pagination to increment, but I can't get the blogroll to show 5 items at a time and increment with the pagination.
angular.module('mean.articles')
.controller('ArticlesController', ['$scope', '$routeParams', '$location', 'Global', 'Articles', function ($scope, $routeParams, $location, Global, Articles) {
$scope.global = Global;
$scope.currentPage = 0;
$scope.pageSize = 5;
//I've my create, update and delete methods here.
$scope.find = function() {
Articles.query(function(articles) {
$scope.articles = articles;
});
};
$scope.numPages = function() {
return Math.ceil($scope.Articles.length / $scope.pageSize);
};
And here's my list.html:
<div class="container" style="width:900px; margin:auto">
<div class="container" style="width:600px; float:left">
<section data-ng-controller="ArticlesController" data-ng-init="find()">
<ul class="articles unstyled" style="width:600px">
<li data-ng-repeat="article in articles | filter:search | limitTo:pageSize">
<h2><a data-ng-href="#!/articles/{{article._id}}">{{article.title}}</a></h2>
<div>{{article.content}}</div>
<div>{{article.tags}}</div>
<h4><small>
<div class="well well-small text-center" style="width:300px">
<div style="margin:auto">
<span>{{article.created | date:'medium'}}</span> /
<span>{{article.user.name}}</span>
</div>
</div>
</small></h6>
</li>
</ul>
<h1 data-ng-hide="!articles || articles.length">No articles yet. <br> Why don't you Create One?</h1>
<button ng-disabled="currentPage == 0" ng-click="currentPage=currentPage-1">
Previous
</button>
{{currentPage+1}}/{{numPages()}}
<button ng-disabled="currentPage >= numPages()-1" ng-click="currentPage=currentPage+1">
Next
</button>
</section>
</div>
<div class="container" style="width:300px; float:left">
<input type="text" ng-model="search" placeholder="Enter your search terms" />
</div>

http://jsfiddle.net/2ZzZB/56/ from Pagination on a list using ng-repeat. It looks like the main thing you're missing is a way to indicate where to start your ng-repeat. The fiddle I linked to solves it by creating a startFrom filter.