I have following code written in AngularJS (simple HTML and its controller) and I mapped them in my state file
main.html
<input class="serialSearch" data-ng-placeholder="Serial #" data-ng-model ="serialNum" list="suggestion"/>
<datalist id="suggestion">
<option data-ng-repeat="suggest in sugesstions.values"> {{suggest.title}}</option>
</datalist>
mainController
$scope.sugesstions = {};
var queryString= {"querystring" : ""+"q=name:"+$scope.serialNum+"*&qt=autocomplete-model&hl=true&hl.fl=name","$skip" : "0","$top" : "75"};
searchResource.getList(queryString).then(
function(data) {
$scope.sugesstions = data.items;
}
);
When I enter anything in my searchBox is calls the resource and returns me data, but in this case searchResource.getList is never getting called when there is anychange in searchBox content. WHY?
If you are changing textbox content and are expecting that the querying mechanism is fired again you need to attach ng-change event directive
<input class="serialSearch" data-ng-placeholder="Serial #" data-ng-model ="serialNum" list="suggestion" ng-change='search()'/>
In controller
$scope.search=function() {
var queryString= {"querystring" : ""+"q=name:"+$scope.serialNum+"*&qt=autocomplete- model&hl=true&hl.fl=name","$skip" : "0","$top" : "75"};
searchResource.getList(queryString).then(
function(data) {
$scope.sugesstions = data.items;
}
);
}
Related
I am really new to AngularJS. I want to pass some object from View (HTML) to my controller (JS).
Actually my Client will send me data in HTML and I have to take that data and process that data in my controller and then display the processed output on screen. He will be using some back-end technology called ServiceNow - https://www.servicenow.com/ .
All the solutions I saw had some event like click event or change event, but in my case this has to be done on page load.
I m using Input type hidden for passing the data to the controller, seems like it's not working.
So is there any other way I can do this ?
Here's the code I am trying to use
<div ng-controller="progressController" >
<input type="hidden" value="ABCD" ng-model="testingmodel.testing">
</div>
app.controller('progressController', function($scope) {
console.log($scope.testingmodel.testing);
});
It says undefined when I console.log my variable in Controller.
You're doing console.log(...) too early. At this time your controller doesn't have any information from the view.
The second problem is that you're binding the view to a variable in controller and not the other way around. Your $scope.testingmodel.testing is undefined and it will obviously the value in the view to undefined.
Solution
Use ng-init to initialize the model and the controller's hook $postLink to get the value after everything has been initialized.
Like this
<div ng-controller="progressController" >
<input type="hidden" ng-model="testingmodel.testing" ng-init="testingmodel.testing = 'ABCD'">
</div>
app.controller('progressController', function($scope) {
var $ctrl = this;
$ctrl.$postLink = function() {
console.log($scope.testingmodel.testing);
};
});
Edit: extra tip
I don't recomment using $scope for storing data since it makes the migration to newer angular more difficult.
Use controller instead.
Something like this:
<div ng-controller="progressController as $ctrl" >
<input type="hidden" ng-model="$ctrl.testingmodel.testing" ng-init="$ctrl.testingmodel.testing = 'ABCD'">
</div>
app.controller('progressController', function() {
var $ctrl = this;
$ctrl.$postLink = function() {
console.log($ctrl.testingmodel.testing);
};
});
You should use the ng-change or $watch
<div ng-controller="progressController" >
<input type="hidden" value="ABCD" ng-model="testingmodel.testing" ng-change="change()">
</div>
app.controller('progressController', function($scope) {
$scope.change = function(){
console.log($scope.testingmodel.testing);
}
});
Or:
app.controller('progressController', function($scope) {
$scope.$watch('testingmodel.testing', function(newValue, olValue){
console.log(newValue);
}
});
If you use ng-change, the function is only called if the user changes the value in UI.
If you use $watch anyway, the function is called.
You can't use value attribute for set or get value of any control, angularJS use ngModel for set or get values.
Here You should try like this way
app.controller('progressController', function($scope) {
//from here you can set value of your input
$scope.setValue = function(){
$scope.testingmodel = {}
$scope.testingmodel.testing = 'ABCD';
}
//From here you can get you value
$scope.getValue = function(){
console.log($scope.testingmodel.testing);
}
});
if you want to bind from html side then you should try like below
<input type="text" ng-model="testingmodel.testing">
<input type="hidden" ng-model="testingmodel.testing">
let me explain my scenario. I am having the dropdownlist in my master page. if changed dropdownlist the data are changed depend upon the dropdownlist value.
If i refreshed my page or moved to another page the dropdownlist will clear automatically.
I want to retain the dropdownlist value after refresh the page or moved to another page.
I tried like this but this is not help ful.
HTML
<select id="Facility_ID" required typeof="text" name="Facility Name" ng-options="Role.FacilityName for Role in Roles"
form="DistanceMatrixFormId" class="form-control" ng-model="Role._id" ng-selected="getFacilityID(Role._id.FacilityName)">
</select>
Controller.js
$scope.getFacilityID = function (data) {
localStorage.setItem("FacilityName", data);
var getfacility = localStorage.getItem("FacilityName");
}
i refered this link but it is not help ful
I don't know how to retain the value. can any one fixed me.
You cannot put an object into the local storage, you must store strings inside local storage.
If you want, you can have an implementation I did here : How to add local storage in angular?
For your current code, you don't need to use ng-selected. ng-model is enough.
<select id="Facility_ID" required typeof="text"
name="Facility Name"
ng-options="Role.FacilityName for Role in Roles"
form="DistanceMatrixFormId"
class="form-control"
ng-model="Role._id"
ng-change="updateLocalStorage()">
</select>
And inside your angular controller, what you can do is the following :
myApp.controller('controllerName', ['$scope', 'LocalStorageService',
function($scope, LocalStorageService){
// After initialization of your "Role" object
$scope.Role._id = LocalStorageService.retrieve('mySelectValue');
$scope.updateLocalStorage = function(){
LocalStorageService.store('mySelectValue', $scope.Role._id);
}
}])
Here is an example that uses a service to store the selected value. Unfortunately the embedded demo does not work because of the sandboxing, but works when served as an application.
angular.module(
"App", []
).factory("MyStorage", function() {
const key = "selected";
return {
getValue: function() {
const stored = localStorage.getItem(key);
return stored ? JSON.parse(stored) : null;
},
setValue: function(value) {
localStorage.setItem(key, JSON.stringify(value));
}
};
}).controller("MyCtrl", function($scope, MyStorage) {
$scope.options = ["A", "B", "C"];
$scope.selected = MyStorage.getValue();
$scope.$watch("selected", newValue => {
MyStorage.setValue(newValue);
});
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.6.1/angular.min.js"></script>
<div ng-app="App" ng-controller="MyCtrl">
<select ng-model="selected" ng-options="x for x in options">
</select>
</div>
I am trying to call a function on onchange event but getting reference error everytime for that function my fromtend code is this:
<label class="item item-input item-select" ng-controller="manageTeam">
<div class="input-label">
Select Form
</div>
<select onchange="goToFormDashboard($(this).children(':selected').val())" ng-model="Formname" ng-options="f.Formname for f in forms track by f.Formid"></select>
</label>
My controller is this:
.controller('manageTeam', function($scope, $ionicLoading, $http, $timeout, $rootScope, $state) {
$scope.goToFormDashboard = function (formId) {
$ionicLoading.show({template: 'Loading'});
$timeout(function () {
$ionicLoading.hide();
}, 1500);
var formID = formId;
$scope.form.length = 0;
.....
is something missing in that?
You need to use ng-change directive & no need to use jquery here you can get the value inside ng-model, Formname contains whole object you can pass form id only by doing Formname.Formid to goToFormDashboard method.
Markup
<select ng-change="goToFormDashboard(Formname.Formid)" ng-model="Formname"
ng-options="f.Formname for f in forms track by f.Formid"></select>
In JavaScript "this" means the function, from which the actual method was called. Example:
var myObject = function();
myObject.prototype.testvar = "hello world";
myObject.prototype.test = function(){
return this.testvar;
}
var obj = new myObject();
console.log(obj.test());
this would display "hello world" in your chrome console. You dont need to pass the dropdown's value to the submit handler. just have a look at
Angular JS: Pass a form's select option value as parameter on ng-submit="doStuff()"
this is exactly what you are searching for
I am using angularjs to integrate my api.
I am facing problem with using ng-if inside textbox.
so below is my snippet of HTML code:
<input type="text" value="" data-ng-if="edit" ng-model="name">
<input type="text" value="" data-ng-if="!edit" ng-model="singleAppDetails.name">
Here edit variable is there in scope
that is in my controller i have declared it like this:
$scope.edit = false;
So if edit is false it should get bind with ng-model="name"
and if edit is true it should get bind with ng-model="singleAppDetails.name"
But it is not binding it as expected.
Further I am using $http.post to post the data to server like below:
$scope.addApp = function(){
$scope.apps = [];
$scope.apps.push({'name':$scope.name, 'domain':$scope.domain, 'appId':$scope.appId, 'secret':$scope.secret});
// Writing it to the server
//
var dataObj = {
name : $scope.name,
domain : $scope.domain,
appId : $scope.appId,
secret : $scope.secret
};
var res = $http.post('http://192.168.1.30:8090/apps/', dataObj);
res.success(function(data, status, headers, config) {
$scope.message = data;
});
res.error(function(data, status, headers, config) {
alert( "failure message: " + JSON.stringify({data: data}));
});
// Making the fields empty
//
$scope.name='';
$scope.domain='';
$scope.appId = '';
$scope.secret = '';
};
But this always sends null data.
ng-if has its own scope. So the name attribute that is populated by the first input is in the ng-if scope instead of being in your controller scope.
The second input should work fine, provided that your controller initializes singleAppDetails to a non-null object:
$scope.singleAppDetails = {};
Rule of thumb: always have a dot in your ng-model. Always populate objects in the scope rather than the scope itself.
ng-if is creating a child scope because that the input elements does not see the scope variable defined in the controller you have two ways to solve this problem
use an object reference
ex :
$scope.user = { name : "" }
inside the template
<input type="text" ng-model='user.name' />
you can tell angular to look for the variable in parent scope instead child scope
<input type="text" ng-model='$parent.name' />
I tried to get the HTML page value to angularJS function , The below steps are which i tried.
HTML page :
<label class="item-input item-stacked-label">
<span class="input-label cont_det_label">First Name</span>
<p class="contact_display" id="txtFirstName" ng-model="testName">Satya</p>
</label>
angularJS Page :
.controller('SocialNetworkCtrl', ['$scope','$http','$state','ContactsService','$ionicNavBarDelegate','$ionicLoading','$ionicPopup',function($scope, $http, $state, ContactsService, $ionicNavBarDelegate, $ionicLoading,$ionicPopup) {
$scope.showUserProfile = function() {
$state.go("linkedin");
var firstname = (document.getElementById("txtFirstName").value);
}
}])
So I need var firstname = Satya ?? Is it correct way please guide me to access this value .
var firstName = $scope.testName
<input ng-model="testName" />
testName is the ng-model name that you have give. It will be automatically binded to your controller. No need the get the value using document.getElementById
Wrong usage , why ng-model in <p> tag??
Update
Change your fiddle with the following code, it will work. Also make sure framework is selected properly (as in the image)
<div ng-app ng-controller="testController">
<input ng-model="testDataName" ng-change="check()" /> {{testDataName}}
After ng-change : {{checkName}}
</div>
function testController($scope) {
$scope.testDataName="Dummy Name";
$scope.check = function () {
$scope.checkName=$scope.testDataName;
console.log($scope.checkName);
};
}
its a text node, you will require .innerHTML or '.innerText', .value is for form inputs
var firstname = (document.getElementById("txtFirstName").innerHTML);
and don't use ng-model on a p element, change it to like this
<p class="contact_display" id="txtFirstName">{{testName}}</p>
just use $scope.testName to get the value, no need for firstname = (document.getElementById("txtFirstName").innerHTML); querying DOM for value is jQuery style, use angular the $scope for 2 way bindings
Read more at official doc
Update here is updated function on loginCtrl
.controller('loginCtrl', ['$scope', function ($scope) {
$scope.testNameData = 'Satya';
$scope.doLogin = function() {
alert($scope.testNameData);
};
}])
If you really want to go jQuery way here is what you can do, its not recommended, you should use angular directive to do DOM manipulation
$scope.showUserPro = function() {
$ionicLoading.show();
// Here i need the value of <p tag>
var name = document.getElementById("txtFirstName"),
firstNameFromHtmlPtag = name.innerText;
console.log(firstNameFromHtmlPtag, 'Doing API Call 1');
}