I'm developing an ionic v1 app in which, when I'm typing the mobile number, the network name and circle name should get automatically updated in the dropdown as like the applications like PayTM, etc...
I'm having a database already in which networks have been split based on the first 4 digits of the mobile number. How to pass a request when a mobile number is being typed?
Please suggest some ideas to do that.
you can use angular 1 ng-change
View.html
<input type="text" ng-model="mobilenumber" ng-change="updateotherfields()" />
Controller.js
app.controller('yourCtrl', function($scope) {
$scope.mobilenumber;
$scope.updateotherfields = function(){
if($scope.mobilenumber){
//check the length
if($scope.mobilenumber.length > 4){
console.log($scope.mobilenumber);
var firstfournumbers = $scope.mobilenumber.slice(0, 4);
//now you have your fournumbers
//Do you server code and then update the combobox Model
}
}
}
});
<!DOCTYPE html>
<html>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.4/angular.min.js"></script>
<body>
<div ng-app="myApp" ng-controller="formCtrl">
<form>
First Name: <input type="text" ng-model="number">
</form>
<button ng-click="submit(number)">Check</button>
</div>
<script>
var app = angular.module('myApp', []);
app.controller('formCtrl', function($scope) {
$scope.number;
$scope.submit = function(number){
console.log(number)
var res = number.slice(0, 4);
console.log(res)
}
});
</script>
</body>
</html>
send 'res' value to server, search db table using that 4 digit value, get the detail of network
Related
I wish to share a service value between one or more controllers (only one in the following example but that's not the point).
The problema is that the value hold in the service is not bound and shown in the view.
The code (derived from angularjs basic service example) is:
(function(angular) {
'use strict';
angular.
module('myServiceModule', []).
controller('MyController', ['$scope', 'notify','$log', function($scope, notify, $log) {
$scope.callNotify = function(msg) {
notify.push(msg);
};
$scope.clickCount = notify.clickCount();
$log.debug("Click count is now", $scope.clickCount);
}]).
factory('notify', ['$window','$log', function(win,$log) {
var msgs = [];
var clickCounter = 0;
return {
clickCount: function() {
clickCounter = msgs.length;
$log.debug("You are clicking, click count is now", clickCounter);
return clickCounter;
},
push: function(msg) {
msgs.push(msg);
clickCounter = msgs.length;
$log.debug("Counter is", clickCounter);
if (msgs.length === 3) {
win.alert(msgs.join('\n'));
msgs = [];
}
}
}
}]);
I wish the counter to be displayed on page:
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Example - example-services-usage-production</title>
<script src="//code.angularjs.org/snapshot/angular.min.js"></script>
<script src="script.js"></script>
</head>
<body ng-app="myServiceModule">
<div id="simple" ng-controller="MyController as self">
<p>Let's try this simple notify service, injected into the controller...</p>
<input ng-init="message='test'" ng-model="message" >
<button ng-click="callNotify(message);">NOTIFY</button>
<p>(you have to click {{3-self.clickCount}} times more to see an alert)</p>
</div>
<div>You have clicked {{clickCount}} times</div>
</body>
</html>
See it in action on plunker
UPDATE: corrected the trivial errors is html and service code as suggested by #SehaxX
First your HTML is wrong. Your last div is not in the div of Controller, and you dont need the self.
<body ng-app="myServiceModule">
<div id="simple" ng-controller="MyController">
<p>Let's try this simple notify service, injected into the controller...</p>
<input ng-init="message='test'" ng-model="message" >
<button ng-click="callNotify(message);">NOTIFY</button>
<p>(you have to click {{3-self.clickCount}} times more to see an alert)</p>
<div>You have clicked {{clickCount}} times</div>
</div>
</body>
Also in your service you are missing return:
clickCount: function() {
clickCounter = msgs.length;
$log.debug("You are clicking, click count is now", clickCounter);
return clickCounter;
},
And in your controller you only once call the notify.clickCount() so you need to add it to the method:
$scope.callNotify = function(msg) {
notify.push(msg);
$scope.clickCount = notify.clickCount();
$log.debug("Click count is now", $scope.clickCount);
};
Here also a working code pen with "Controller as self" if you want. But then in controller you must use this and not $scope.
Cheers,
I am wondering how to call the angularjs function by Pressing tab button?
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>
<div ng-app="myApp" ng-controller="myCtrl">
First Name: <input type="text" ng-model="firstName"><br>
</div>
How to call the function using angularJs, after Pressing the firstName and click on tab button. since i am new to angularJs, i know ng-click,ng-change, but i got no idea about this.
please someone help me.
Thanks in advance
You could use ngBlur.
However, it will run the function if you click outside of the input as well as tabbing out.
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
$scope.tabbedout = function(val) {
console.log("tabbedout: " + val);
}
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>
<div ng-app="myApp" ng-controller="myCtrl">
First Name: <input type="text" ng-model="firstName" ng-blur="tabbedout(firstName)"><br>
Last Name: <input type="text" ng-model="lastName" ng-blur="tabbedout(lastName)"><br>
</div>
You say click a button, but I assume you want to handle the tab keydown/keyup events since there is no tab-button to click.
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
var _this = this;
_this.firstName = '';
_this.handleKeyDown = function($event) {
if ($event.which == 9)
alert('tab was pressed! Current value is: ' + _this.firstName);
}
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>
<div ng-app="myApp" ng-controller="myCtrl as vm">
First Name: <input type="text" ng-model="vm.firstName" ng-keydown="vm.handleKeyDown($event)"><br>
</div>
I am a beginner angularjs user, but i have to learn it for my new job and I thought I could practice a bit. So I did a simple string reverse method and I thought I could make a simple calculator (exactly, only sum). Here is my code. I made 2 modules, 2 controllers and the first one is working fine, but the calculator isn't. However I made a simple site, where only the calc code is, and it works fine and I don't understand why it works, but doesn't work if 2 modules are on the same site.(Yeah, i'm a very beginner). Thank you for your help.
<!DOCTYPE html>
<html lang="en">
<head>
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"> </script>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<div ng-app="MyApp" ng-controller="myController">
<center>
<input type="text" ng-model="myString" placeholder="Enter text"/>
<p>Input: {{myString }}</p>
<p>Filtered input: {{getReverse()}}</p>
</center>
</div>
<br><br>
<center>
<div ng-app="MyCalc" ng-controller="myCalculate">
<input type="text" ng-model="firstNumber"><br>
<input type="text" ng-model="secondNumber"><br>
<p> Result: {{getResult()}}</p>
</div>
</center>
<script>
var reverse = angular.module("MyApp", []);
var calc = angular.module("MyCalc",[]);
reverse.controller('myController',function($scope){
$scope.myString = "";
$scope.getReverse = function(){
return $scope.myString.split("").reverse().join("");
}
});
calc.controller('myCalculate',function($scope){
$scope.firstNumber = 0;
$scope.secondNumber = 0;
$scope.getResult = function(){
return Number($scope.firstNumber)+Number($scope.secondNumber);
}
});
</script>
ng-app directive can be used just one time in page.
only one AngularJS application can be auto-bootstrapped per HTML document. The first ngApp found in the document will be used to define the root element to auto-bootstrap as an application. To run multiple applications in an HTML document you must manually bootstrap them using angular.bootstrap instead. (https://docs.angularjs.org/api/ng/directive/ngApp)
But you can bootstrap manually your app. Affect id on div that contains an angular app and add this to your script (https://plnkr.co/edit/ZTW7mXx3iXm803xdYod1?p=preview):
angular.bootstrap(document.getElementById('reverse'), ['MyApp']);
angular.bootstrap(document.getElementById('calc'), ['MyCalc']);
But I agree with Vikash, create more modules and less app :)
Normally, you should not use 2 angular app in a web page.
If you need to use different module, just make one depend on another.
Let's say your main module is MyApp and you need MyCalc's function, you do it like this (JsFiddle):
var calc = angular.module("MyCalc",[]);
calc.controller('myCalculate',function($scope){
$scope.firstNumber = 0;
$scope.secondNumber = 0;
$scope.getResult = function(){
return Number($scope.firstNumber)+Number($scope.secondNumber);
}
});
// Make MyApp module depend on MyCalc
var reverse = angular.module("MyApp", ["MyCalc"]);
reverse.controller('myController',function($scope){
$scope.myString = "";
$scope.getReverse = function(){
return $scope.myString.split("").reverse().join("");
}
});
And then in the HTML:
<body ng-app="MyApp">
<div ng-controller="myController">
<center>
<input type="text" ng-model="myString" placeholder="Enter text"/>
<p>Input: {{myString }}</p>
<p>Filtered input: {{getReverse()}}</p>
</center>
</div>
<br><br>
<center>
<div ng-controller="myCalculate">
<input type="text" ng-model="firstNumber"><br>
<input type="text" ng-model="secondNumber"><br>
<p> Result: {{getResult()}}</p>
</div>
</center>
</body>
P/s: If you really need to bootstrap 2 angular app in the same web page, you need to bootstrap it manually (JsFiddle):
angular.bootstrap(document.getElementById('calc'), ['MyCalc']);
calc is the id of the element you need to bootstrap the second app on
<div id="calc" ng-controller="myCalculate">
use ng-module instead of ng-app because ng-app can be used with one module in one page.
<div ng-module="MyModuleA">
<h1>Module A</h1>
<div ng-controller="MyControllerA">
{{name}}
</div>
<div ng-module="MyModuleB">
<h1>Just Module B</h1>
<div ng-controller="MyControllerB">
{{name}}
</div>
var moduleA = angular.module("MyModuleA", []);
moduleA.controller("MyControllerA", function($scope) {
$scope.name = "Bob A";
});
var moduleB = angular.module("MyModuleB", []);
moduleB.controller("MyControllerB", function($scope) {
$scope.name = "Steve B";
});
Use angular ng-modules to achieve this
here is the working [link] [1]
[1] http://jsfiddle.net/j5jzsppv/111/
<div ng-modules="MyModuleA, MyModuleB">
<div ng-controller="myController">
<input type="text" ng-model="myString" placeholder="Enter text"/>
{{myString}}
<p>Filtered input: {{getReverse()}}</p>
</div>
<div ng-controller="myCalculate">
<input type="text" ng-model="firstNumber"><br>
<input type="text" ng-model="secondNumber"><br>
<p> Result: {{getResult()}}</p>
</div>
var reverse = angular.module("MyModuleA", []);
var calc = angular.module("MyModuleB", []);
reverse.controller('myController', function ($scope) {
$scope.myString = "";
$scope.getReverse = function () {
return $scope.myString.split("")
.reverse()
.join("");
}
});
calc.controller('myCalculate', function ($scope) {
$scope.firstNumber = 0;
$scope.secondNumber = 0;
$scope.getResult = function () {
return Number($scope.firstNumber) + Number($scope.secondNumber);
}
});
I'm in a project that uses angularjs and rails. So, i'm using this library too:
https://github.com/FineLinePrototyping/angularjs-rails-resource
Well, when i'm using the controller as syntax from angularjs, some strange behaviour is happening. You can see that in this plunker example:
http://plnkr.co/edit/i4Ohhh8llS7WN68sLX5q?p=preview
The promise object returned by the remote call in first controller using the angularjs-rails-resource library in some way is setting the instance variable that belongs to the second controller. I don't know if it is a bug in the library, or an angular behaviour that i should know. Anyway, is clearly an undesirable behaviour.
Here is the same plunker code (index.html):
<!doctype html>
<html ng-app="Demo">
<head>
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.3.13/angular.js"></script>
<script src="https://rawgit.com/FineLinePrototyping/dist-angularjs-rails-resource/master/angularjs-rails-resource.min.js"></script>
<script src="example.js"></script>
</head>
<body>
<div ng-controller="Controller1 as ctrl1">
<form>
<label>should appear first remote</label>
<input type="text" ng-model="ctrl1.remote.name"/><br>
<label>should appear first local</label>
<input type="text" ng-model="ctrl1.local.name"/>
</form>
</div>
<br>
<div ng-controller="Controller2 as ctrl2">
<form>
<label>should appear second local</label>
<input type="text" ng-model="ctrl2.remote.name"/><br>
<label>should appear second local</label>
<input type="text" ng-model="ctrl2.local.name"/>
</form>
</div>
</body>
</html>
My angularjs code (example.js):
angular.module('Demo', ['rails']);
angular.module('Demo').controller('Controller1', ['$scope', 'Remote', function($scope, Remote) {
ctrl = this;
ctrl.remote = {};
Remote.get().then(function(remote) {
ctrl.remote = remote;
});
ctrl.local = {};
ctrl.local.name = "first local";
}]);
angular.module('Demo').controller('Controller2', ['$scope', function($scope) {
ctrl = this;
// SAME VARIABLE NAME
// WILL RECEIVE VALUE FROM REMOTE CALL ON FIRST CONTROLLER!!!
ctrl.remote = {};
ctrl.remote.name = "second local";
// SAME VARIABLE NAME
ctrl.local = {};
ctrl.local.name = "second local";
}])
angular.module('Demo').factory('Remote', [
'railsResourceFactory',
'railsSerializer',
function (railsResourceFactory, railsSerializer) {
return railsResourceFactory({
url:'clients.json',
name: 'remote',
})
}]
);
clients.json
{
"name":"first remote"
}
Any ideias how fix this without having to change variable names to avoid conflict? Because that way we will just mask the problem.
I report the problem to angularjs-rails-resource library but no answer until now.
You need to use var when declaring your variables, otherwise they're global.
Use
var ctrl = this; instead of just ctrl = this;
Also, 'use strict' is a nice thing to use(and it helps in these situations)
Say I have some html as follows:
<html>
<head> angular etc. </head>
<body ng-app>
<div ng-controller="MyCtrl">
<input ng-model="weight" type="number" min="{{minWeight}}" max="{{maxWeight}}">
<p>{{weight}}</p>
</div>
</body>
</html>
and the following controller:
function MyCtrl($scope){
$scope.weight = 200;
$scope.minWeight = 100.0;
$scope.maxWeight = 300.0;
}
The "min" and "max" will show the user their input is bad, and if I hard code them to say, 100 and 300, it will make sure the value is never bound to the model at all (why isn't the behavior the same??). What I'd like to do is only actually change the "weight" if the value meets the input requirements. Any thoughts?
I don't fully understand what are you trying to do.
HTML:
<html>
<head> angular etc. </head>
<body ng-app="MyApp">
<div ng-controller="MyCtrl">
<input ng-model="weight" type="number" min="{{minWeight}}" max="{{maxWeight}}">
<p>{{weight}}</p>
</div>
</body>
</html>
Angular: [Edit]
var app = angular.module('myApp', []);
app.controller('MyCtrl', ['$scope', function MyCtrl($scope){
$scope.weight = 200;
$scope.minWeight = 100.0;
$scope.maxWeight = 300.0;
$scope.$watch('weight', function (newValue, oldValue) {
if(typeof newValue === 'number') {
if(newValue > $scope.maxWeight || newValue < $scope.minWeight) {
$scope.weight = oldValue;
}
}
});
}]);
But here is an example I made in jsFiddle. I hope this was a solution you were looking for.
[Edit]
http://jsfiddle.net/migontech/jfDd2/1/
[Edit 2]
I have made a directive that does delayed validation of your input field.
And if it is incorrect then it sets it back to last correct value.
This is totally basic. You can extend it to say if it is less then allowed use Min value, if it is more then allowed use Max value it is all up to you. You can change directive as you like.
http://jsfiddle.net/migontech/jfDd2/2/
If you have any questions let me know.