Develop Reference

AngularJS - submit form programmatically after validation

I have recently started working on AngularJS 1.6.
I am trying to submit a form programmatically. The reason is I want to validate a few fields (required field validation). I have spent a lot of efforts (probably 3-4 hours) trying to make this work but none of the existing answers on stack overflow or AngularJS docs seems to be working for me today (strange), hence I am posting this as last resort.
Below is my html
<form method="post" id="loginform" name="loginform" ng-submit="loginUser()" novalidate>
<div>
{{message}}
</div>
<div>
<label>User Name</label>
<input type="text" id="txtUserName" ng-model="user.UserName" name="user.UserName" />
</div>
<div>
<label>Password</label>
<input type="text" id="txtPassword" ng-model="user.Password" name="user.Password" />
</div>
<div>
<input type="submit" id="btnLogin" title="Save" name="btnLogin" value="Login" />
</div>
</form>
My angular code
var demoApp = angular.module('demoApp', []);
demoApp.controller("homeController", ["$scope", "$timeout", function ($scope, $timeout) {
$scope.loginUser = function () {
var form = document.getElementById("loginform");
//var form = $scope.loginform; - tried this here...
//var form = $scope["#loginform"]; tried this
//var form = angular.element(event.target); - tried this...
// tried a lot of other combinations as well...
form.attr("method", "post");
form.attr("action", "Home/Index");
form.append("UserName", $scope.user.UserName);
form.append("Password", $scope.user.Password);
form.append("RememberMe", false);
form.submit();
};
}]);
I keep on getting error 'attr' is not a function.
All I need is submit a form using post method, with values. Just before that I am trying to intercept the submit call and check for validations.
I am open to try any other approach as well. Such as changing the input type from submit to button. Putting the input outside the form. I would be more than happy if validations and submit both can happen any which way. I just want it to post back the values after validating on the client side and then the server will take care of the redirect.
Note: I want the form to do a full postback so that I can get it to redirect to another form. (I know I could use Ajax, but some other day, may be!)

1st of all avoid doing var form = document.getElementById("loginform");. Instead of using form.submit you can use the following code. Do it the angular way cheers :D
$scope.loginUser = function () {
if($scope.loginform.$valid){
user.rememberme=false;
$http({
url: 'Home/Index',
method: "POST",
data: user
})
.then(function(response) {
// success
},
function(response) { // optional
// failed
});
}
};

this is a code to validation if validation not complate button is not enable
<form method="post" id="loginform" name="loginform" ng-submit="loginUser()" novalidate>
<div>
{{message}}
</div>
<div>
<label>User Name</label>
<input type="text" id="txtUserName" required ng-model="user.UserName" name="UserName" />
</div>
<div>
<label>Password</label>
<input type="text" id="txtPassword" ng-model="Password" name="user.Password"required />
</div>
<div>
<input type="submit" ng-disabled="myForm.UserName.$invalid || myForm.Password.$invalid" id="btnLogin" title="Save" name="btnLogin" value="Login" />
</div>
</form>

You should use $scope when trying to access the form, something like $scope.loginform. But......
Take a look at ng-messages. Heres an example using ng-messages with your form:
<form id="loginform" name="loginform" ng-submit="loginUser()">
<div>
{{message}}
</div>
<div>
<label>User Name</label>
<input type="text" id="txtUserName" ng-model="user.UserName" name="user.UserName" required/>
<div class="help-block" ng-messages="loginform.txtUserName.$error" ng-show="loginform.txtUserName.$touched">
<p ng-message="required">Username is required.</p>
</div>
</div>
<div>
<label>Password</label>
<input type="text" id="txtPassword" ng-model="user.Password" name="user.Password" required/>
<div class="help-block" ng-messages="loginform.txtPassword.$error" ng-show="loginform.txtPassword.$touched">
<p ng-message="required">Password is required.</p>
</div>
</div>
<div>
<input type="submit" id="btnLogin" title="Save" name="btnLogin" value="Login" ng-click="loginUser()" />
</div>
</form>
Add ngMessages:
var demoApp = angular.module('demoApp', ['ngMessages']);
demoApp.controller("homeController", ["$scope", "$timeout", function ($scope, $timeout) {
$scope.loginUser = function () {
if($scope.loginform.$valid){
//Code to run before submitting (but not validation checks)
} else{
return false;
}
};
}]);
Don't forget to include ngMessages in your app declaration and include the ngMessages.js script file. Note how you can simply use HTML5 validators.

I found the thing I was looking for. In the end I had to create a directive for validating and then submitting. So I am posting it here as a whole answer.
My HTML
<div ng-controller="homeController" ng-init="construct()">
<form method="post" action="Index" role="form" id="loginform" name="loginform" ng-form-commit novalidate class="ng-pristine ng-invalid ng-invalid-required">
<div class="form-group">
<label for="UserName">User ID</label>
<input autocomplete="off" class="form-control ng-valid ng-touched ng-pristine ng-untouched ng-not-empty"
id="UserName" name="UserName" ng-model="user.UserName" type="text" value=""
ng-change="userNameValidation = user.UserName.length == 0">
<span class="field-validation-error text-danger" ng-show="userNameValidation">The User ID field is required.</span>
</div>
<div class="form-group">
<label for="Password">Password</label>
<input autocomplete="off" class="form-control ng-valid ng-touched ng-pristine ng-untouched ng-not-empty"
id="Password" name="Password" ng-model="user.Password" type="password" value=""
ng-change="passwordValidation = user.Password.length == 0">
<span class="field-validation-error text-danger" ng-show="passwordValidation">The Password field is required.</span>
</div>
<div>
<input type="button" id="btnLogin" title="Login" name="btnLogin" value="Login" ng-click="validateUser(loginform)" />
</div>
</form>
</div>
Look for ng-form-commit on the form element. It is the directive that I created.
My Angular code
var demoApp = angular.module('demoApp', []);
demoApp.factory("commonService", function () {
return {
isNullOrEmptyOrUndefined: function (value) {
return !value;
}
};
});
//This is the directive that helps posting the form back...
demoApp.directive("ngFormCommit", [function () {
return {
require: "form",
link: function ($scope, $el, $attr, $form) {
$form.commit = function () {
$el[0].submit();
};
}
};
}]);
demoApp.controller("homeController", ["$scope", "commonService", function ($scope, commonService) {
$scope.construct = function construct() {
$scope.user = { UserName: "", Password: "" };
};
$scope.userNameValidation = false;
$scope.passwordValidation = false;
$scope.isFormValid = false;
$scope.validateUser = function ($form) {
$scope.isFormValid = true;
$scope.userNameValidation = commonService.isNullOrEmptyOrUndefined($scope.user.UserName);
$scope.passwordValidation = commonService.isNullOrEmptyOrUndefined($scope.user.Password);
$scope.isFormValid = !($scope.userNameValidation || $scope.passwordValidation);
if ($scope.isFormValid === true) {
$scope.loginUser($form);
}
};
$scope.loginUser = function ($form) {
$form.commit();
};
}]);
I found the directive here

Example using Angular 1.5 components.
(function(angular) {
'use strict';
function DemoFormCtrl($timeout, $sce) {
var ctrl = this;
this.$onInit = function() {
this.url = $sce.trustAsResourceUrl(this.url);
/*$timeout(function() {
ctrl.form.$$element[0].submit();
});*/
};
this.validate = function(ev) {
console.log('Running validation.');
if (!this.form) {
return false;
}
};
}
angular.module('app', [])
.component('demoForm', {
template: `
<p>To run this demo allow pop-ups from https://plnkr.co</p>
<hr>
<p>AngularJS - submit form programmatically after validation</p>
<form name="$ctrl.form" method="get" target="blank" action="{{::$ctrl.url}}" novalidate
ng-submit="$ctrl.validate($event)">
<input type='hidden' name='q' ng-value='::$ctrl.value'>
<input type='hidden' name='oq' ng-value='::$ctrl.value'>
<input type="submit" value="submit...">
</form>`,
controller: DemoFormCtrl,
bindings: {
url: '<',
value: '<'
}
});
})(window.angular);
https://plnkr.co/edit/rrruj6vlWrxpN3od9YAj?p=preview

Angular $setPristine is not working

Html :
I'm using controller as syntax.
<form name="occupantDetailForm" role="form" novalidate class="form-validation">
<div class="form-group form-md-line-input form-md-floating-label no-hint">
<input class="form-control" type="text" name="LastName" ng-model="vm.occupantDetail.lastName" ng-class="{'edited':vm.occupantDetail.lastName}" maxlength="#OccupantDetail.MaxLength" required>
<label>#L("LastName")</label>
</div>
<button type="submit" class="btn btn-primary blue" ng-click="vm.saveOccupantDetail(occupantDetailForm)" ng-disabled="occupantDetailForm.$invalid"><i class="fa fa-save"></i> <span>#L("Save")</span></button>
</form>
JS :
vm.saveOccupantDetail = function (form) {
vm.occupantDetailForm = form;
createOrEditOccupantDetail();//create or edit
vm.occupantDetail = {};
vm.occupantDetailForm.$setPristine();
}
Q : I have tried many ways but it is not working ? When I use the vm.occupantDetailForm.$setUntouched(); then it works fine.But then the problem is Save button is not being disabled.Could you tell me why ? When I use the vm.occupantDetailForm.$setPristine(); only then it is not working at all.Why ? Thanks.

$setPristine only marks your form as $pristine and to actually reset the form you need, set your model to a new object.
A better explanation is given here in the link:
$setPristine not working
Below is some code which might help you:
<div ng-app="myapp">
<div ng-controller="UserCtrl">
<form name="user_form" novalidate>
<input name="name" ng-model="user.name" placeholder="Name" required/>
<button class="button" ng-click="reset()">Reset</button>
</form>
<p>
Pristine: {{user_form.$pristine}}
</p>
</div>
</div>
Controller Code:
var app = angular.module('myapp', []);
function UserCtrl($scope) {
$scope.reset = function() {
$scope.user = {};
$scope.user.name = "";
$scope.user_form.$setPristine();
$scope.user = {};
}
}
A fiddle:
http://jsfiddle.net/p7e1nway/1/
Update:, can you try setting $submitted to false
$scope.occupantDetailForm.$setPristine();
$scope.occupantDetailForm.$setUntouched();
$scope.occupantDetailForm.$submitted = false;

ionic ion-google-place ng-model undefined

I'm trying to submit the ng model in my ion-google-place directive but it always logs undefined
view:
<form ng-submit="submit()">
<ion-google-place placeholder="Enter Address" ng-model="location" geocode-options="geocodeOptions"/>
<button ng-click="submit()">Submit</button>
</form>
controller:
$scope.submit = function(){
var location = $scope.location;
console.log(location);
}

View:
<form ng-submit="submit(location)">
<ion-google-place placeholder="Enter Address" ng-model="location" geocode-options="geocodeOptions"/>
<button ng-click="submit(location)">Submit</button>
</form>
Controller:
$scope.submit = function(location) {
var loc = location;
console.log(loc);
}
This should work.

How to load data in ngDialog

I have a requirement where I need to open a dialog from a jsp page and while opening the dialog, I need to load it with some prepopulated data from the server (using an AJAX call). If I make the AJAX call before opening the dialog, I get the data but the dialog loads like a new page. If I try to get the data in the new controller, the dialog still does not reflect the data. What should I use to make sure the dialog reflects the data that I am getting from the server
<div class="container-fluid" ng-controller="EditUserController">
<div class="text-center container-fluid">
<label class="sub-header">Edit User: {{userEmail}}</label>
</div>
<form action="editUser" method="post" name="editForm">
<div>
<div class="pull-right">
<label>Delete User</label><br> <a href="#"
class="btn btn-block btn-sm btn-danger" ng-click="deleteUser(userEmail)">{{userEmail}}</a>
</div>
<div>
<label>Change Role</label>
</div>
<div>
<label>
<input type="checkbox" ng-model="superVisor" name="superVisorFlag"
ng-true-value="1" ng-false-value="0" value="${existingUser.superVisorFlag}">
Make a Supervisor</label>
</div>
<div>
<input type="text" class="form-control" ng-model="email"
name="emailAddress" ng-disabled = "true"
ng-options="email for email in userEmail"
value="${existingUser.emailAddress}"
placeholder="Enter New User Email Address" bs-typeahead>
</div>
<div>
<input type="text" class="form-control" ng-model="firstName"
name="firstName" value="${existingUser.firstName}"
placeholder="Enter First Name" bs-typeahead>
</div>
<div>
<input type="text" class="form-control" ng-model="lastName"
name="lastName" value="${existingUser.lastName}"
placeholder="Enter Last Name" bs-typeahead>
</div>
<div>
Save Changes
</div>
</div>
</form>
</div>
<script type="text/javascript"
src="<c:url value="/resources/scripts/admin.js"/>"></script>
The above is a jsp for the dialog. Below is my js file -
var app = angular.module('scc-admin', [ 'ngDialog', 'mgcrea.ngStrap' ]);
app.factory("UserList", function() {
var UserList = {};
UserList.data = [ {
userId : 111,
userFirstName : "xxx",
userLastName : "yyy",
userEmail : "xxx.yyy#zzz.com",
userRole : "Admin"
}, {
userId : 222,
userFirstName : "second",
userLastName : "last",
userEmail : "second.last#zzz.com",
userRole : "Manager"
}];
return UserList;
});
app.controller('UserSettingsController', function($scope, ngDialog, UserList,$http) {
// variable for the bashboard list
$scope.userList = UserList;
$scope.editUser = function(userEmail) {
$scope.userEmail = userEmail;
ngDialog.open({
template : 'editUser' ,
className : 'ngdialog-theme-default',
controller : 'EditUserController',
closeByEscape : true,
scope : $scope
});
};
$scope.addUser = function() {
ngDialog.open({
template : 'addUser',
className : 'ngdialog-theme-default',
controller : 'AddUserController',
closeByEscape : true,
scope : $scope
});
};
});
app.controller('EditUserController', function($scope, ngDialog, $http) {
ngDialog.template = $scope.output;
ngDialog.$modelValue = $scope.output;
var responsePromise = $http.get("initUser?email=" + $scope.userEmail);
responsePromise.success(function(data, status, headers, config) {
$scope.output = data;
console.log(data);
});
console.log($scope);
$scope.deleteUser = function(){
$scope.cfdump = "";
var str = {emailAddress : $scope.userForm.emailAddress.$modelValue};
str = JSON.stringify(str);
var request = $http({
method: 'post',
url: "deleteUser?formData=" + str,
data: ({formData:str})
});
request.success(function(html){
alert("success");
});
request.error(function(errmsg){
alert("Unable to delete user");
});
}
});
I am opening a dialog in usersettings controller and trying to load it with default data. I tried setting the new dialog's template to the output of the AJAX call, it did not work. What am I missing here?

After consulting the documentation, I learned following solution. It should work for you like it did for me.
To pass data (JSON Object) for ng-model inside the ngDialog, you can declare your ngDialog as following.
ngDialog.open({
template: 'my-template.html',
className: 'ngdialog-theme-plain',
data: $scope.myJSONObject
});
Now, with the above part done, you need to bind the data in your popup ngDialog, so go and put ngDialogData.myJSONObjectFieldName in your ng-model.
Consider following example for further elaboration. We assume that we have myJSONObject as following.
myJSONObject={
first_name: 'John',
last_name: 'Doe'
};
To use first_name inside your ngDialog's ng-model, simply put ng-model="ngDialogData.first_name".

To check whether the controller(VM) data is received in Modal Dialog use this
<pre>{{vm|json}}</pre>
Module and Controller:
var app = angular.module("DemoApp",['ngDialog']);
app.controller("DemoController",["$rootScope","ngDialog","productService",function($rootScope,ngDialog,productService){
var vm=this;
$rootScope.ngDialog = ngDialog; // to close Dialog using "ngDialog.close();" in ProductDialog.html
/* vm.products=[{brand:"Apple", price:60000, os:"iOS"},
{brand:"Samsung", price:35000, os:"Android"},
{brand:"Microsoft Lumia", price:30000, os:"Windows 10"}
];
*/
vm.getProductDetails=function() {
productService.getData().then(function (response) {
if (response.data) {
vm.products=response.data;
vm.ProdDialog();
}
});
};
vm.productPopup = function(x){
ngDialog.open({
template: 'ProductDialog.html',
className:'ProductDetailsDialog'
scope:$scope,
data:x,
closeByDocument:true
});
}
vm.getProductDetails();
}]);
Service:
app.factory("productService",["$http",function($http){
return {
getData: function() {
return $http.get("http://xxxxxxx/xxx/xxxxx");
}
};
}]);
DemoController.html
/* <table>
<tr>
<th>Brand</th>
<th>Price</th>
<th>OPerating System</th>
<th>Open ngDialog</th>
</tr>
<tr ng-repeat="x in vm.products">
<td ng-bind="x.brand"></td>
<td ng-bind="x.price| currency:"₹":2"></td>
<td ng-bind="x.os"></td>
<td><button ng-click="vm.productPopup(x)"></button></td>
</tr>
</table>
*/
ProductDialog.html:
<div class="ProductDetailsDialog">
<div class="ngdialog-content" role="document">
<div class="modal-header">
<button type="button" class="close" ng-click="ngDialog.close();">×</button>
<h4 class="modal-title">Product Detials</h4>
</div>
// <pre>{{vm|json}}</pre> //
<div class="modal-body">
<h4>Brand:<span ng-bind="ngDialogData.brand"></span></h4>
<h4>Price:<span ng-bind="ngDialogData.price | currency:"₹":2"></span></h4>
<p>Operating System:<span ng-bind="ngDialogData.os"></span></p>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default">OK</button>
</div>
</div>
</div>

How do I send form data to server using angular?

Currently, I am using a server side framework CakePHP to build my app.
I need to integrate angular into my app.
Currently, I send the following inputs
User.old_password, User.new_password, User.new_password_confirm
to this url /mypasswords/new using POST
This works just fine.
I understand that to send data to server side I need to use services in Angular.
This is my Angular code so far.
var app = angular.module("myApp", []);
app.controller('passwordController', ['$scope', function($scope) {
$scope.submitted = false;
$scope.changePasswordForm = function() {
if ($scope.change_password_form.$valid) {
// Submit as normal
} else {
$scope.change_password_form.submitted = true;
}
}
}]);
services = angular.module('myApp.services', ['ngResource']);
services.factory("UserService", function($http, $q) {
var service;
// service code here
});
So what do I write in the //service code here part? What other parts am I missing?
My form currently looks like this as html after being rendered. (I know I probably have to remove action and method attributes from my form. Do I?)
<form action="/mypasswords/new" id="change_password_form" name="change_password_form" ng-controller="passwordController" ng-submit="changePasswordForm()" method="post" accept-charset="utf-8" class="ng-scope ng-pristine ng-valid">
<div style="display:none;"><input type="hidden" name="_method" value="POST"></div>
<input name="data[User][old_password]" id="u56" placeholder="Enter old password..." class="u56 profile_input" type="password">
<input name="data[User][new_password]" id="u57" placeholder="Enter new password..." class="u57 profile_input" type="password">
<input name="data[User][new_password_confirm]" id="u58" placeholder="Enter new password..." class="u58 profile_input" type="password">
<div id="u25" class="u25_container">
<div id="u25_img" class="clear_all_button detectCanvas" onclick="document.getElementById('change_password_form').reset()">
</div>
</div>
<div id="u27" class="u27_container">
<input id="u27_img" class="submit_button detectCanvas" type="submit" value="SAVE">
</div>
</form>
Thank you.

if you want just to send the form with ajax, No need to create factory, just do it in controller like this:
var app = angular.module("myApp", [$http]);
app.controller('passwordController', ['$scope', function($scope) {
$scope.submitted = false;
$scope.changePasswordForm = function() {
if ($scope.change_password_form.$valid) {
//note: use full url, not partial....
$http.post('http://myweb.com/mypasswords/new', change_password_form.Data)
.success(function(data, status, headers, config) {
//do anything when it success..
})
.error(function(data, status, headers, config){
//do anything when errors...
});
} else {
$scope.change_password_form.submitted = true;
}
}
}]);
And your form will looks like this:
<form id="change_password_form" name="change_password_form" ng-controller="passwordController" ng-submit="changePasswordForm()" method="post" accept-charset="utf-8" class="ng-scope ng-pristine ng-valid">
<div style="display:none;"><input type="hidden" name="_method" value="POST"></div>
<input name="data[User][old_password]" ng-model="Data.old_password" id="u56" placeholder="Enter old password..." class="u56 profile_input" type="password">
<input name="data[User][new_password]" ng-model="Data.new_password" id="u57" placeholder="Enter new password..." class="u57 profile_input" type="password">
<input name="data[User][new_password_confirm]" ng-model="Data.new_password_confirm" id="u58" placeholder="Enter new password..." class="u58 profile_input" type="password">
<div id="u25" class="u25_container">
<div id="u25_img" class="clear_all_button detectCanvas" onclick="document.getElementById('change_password_form').reset()">
</div>
</div>
<div id="u27" class="u27_container">
<input id="u27_img" class="submit_button detectCanvas" type="submit" value="SAVE">
</div>
</form>

Step 1: write form using normal html instead of FormHelper in CakePHP
The form should look like this:
<form name="change_password_form" ng-controller="passwordController"
ng-submit="changePasswordForm()">
<input name="data[User][old_password]" ng-model="data.User.old_password" type="password" placeholder="Enter old password..." class="u56 profile_input">
<input name="data[User][new_password]" ng-model="data.User.new_password" type="password" placeholder="Enter new password..." class="u57 profile_input">
<input name="data[User][new_password_confirm]" ng-model="data.User.new_password_confirm" type="password" placeholder="Enter new password again..." class="u58 profile_input">
<div id="u25"
class="u25_container">
<div id="u25_img"
class="clear_all_button detectCanvas" onclick="document.getElementById('change_password_form').reset()">
</div>
</div>
<div id="u27"
class="u27_container">
<button type="submit" id="u27_img" ng-click="debug()"
class="submit_button detectCanvas" />
</div>
</form>
Step 2: write the app.js in the following manner.
the X-Requested-With header is important if you want to use the CakePHP $this->request->is('ajax')
angular.module("myApp", [])
.controller('passwordController', function($scope, $http) {
$scope.changePasswordForm = function() {
console.log('change passwrd form activated');
//note: use full url, not partial....
$http({
method : 'POST',
url : '/mypasswords/new',
data : $.param($scope.data), // pass in data as strings
headers : { 'Content-Type': 'application/x-www-form-urlencoded',
'X-Requested-With' : 'XMLHttpRequest'
} // set the headers so angular passing info as form data (not request payload)
})
.success(function(data, status, headers, config) {
//do anything when it success..
console.log('works!');
})
.error(function(data, status, headers, config){
//do anything when errors...
console.log('errors!');
});
}
$scope.debug = function () {
console.log($scope);
}
});