I got this form:
<form ng-controller="SomeCtrl as some" name="product[[product.id]]" ng-submit="some.addToCart(something, product[[product.id]].$valid)" novalidate></form>
Then html looks like:
<form ng-controller="SomeCtrl as some" name="product1" ng-submit="some.addToCart(something, product1.$valid)" novalidate=""></form>
Controller:
this.addToCart = function(something, isValid) {
console.log(isValid);
}
isValid is always undefined. How to detect if form is valid in controller?
Demo
You don't want to use ng-submit if you want to do your own validation in the controller because it will block the submission of the form if it is invalid.
Just use a regular button with a function in ng-click that checks the condition of the form.
Controller:
$scope.submit = function() {
console.log($scope.myForm.$valid)
}
HTML
<form name="myForm">
<input ng-model="myForm.text" type="text" required />
<button ng-click="submit()">Submit</button>
</form>
Related
Im trying to validate my form, if the fields are valid then it should post the data to the DB if not prevent from posting the data to DB. when I submit the form Im getting an error TypeError: Cannot read property '$valid' of undefined, I don't know how to overcome it, need help in this.
html:
<form name="formvalidation">
<ion-view ng-controller="ValidationCheck">
<ion-content>
<div>
<strong>User:</strong> <br/>
<input ng-model="name" type="text" name="name" required/>
<ng-messages for="formvalidation.name.$error" ng-if="formvalidation.name.$invalid">
<div ng-messages-include="error/validation.html"></div>
<ng-messages>
</div>
</from>
<button ng-click="check()">
controller:
myApp.controller('ValidationCheck',function($scope, applicationService)
{
$scope.check=function(formvalidation){
var name={'name'=$scope.name};
$scope.submitted=true;
if(formvalidation.$valid){
applicationService.save(name,$scope.home);
}}});
Just change your if condition formvalidation.$valid to formvalidation
. because you already pass formvalidation.$valid in your function via ng-click
if(formvalidation){
...
...
...
}
Remove ng-click and add a ng-submit:
<form name="formvalidation" ng-submit="check()" novalidate>
Try this : ( controller before form )
<ion-view ng-controller="ValidationCheck">
<form name="formvalidation">
In your html you have:
<button ng-click="check(formvalidation.$valid)">
which calls the check function with either a true or false value (a boolean), depending on whether or not the form is valid.
In your controller you have the check function with the following if-statement:
if(formvalidation.$valid)
but formvalidation is a boolean (true or false)
I recommend removing the argument from check and simply access the formvalidation properties from the $scope variable.
so the html becomes
<button ng-click="check()">
and the controller becomes
$scope.check=function(){
var name={'name'=$scope.name};
$scope.submitted=true;
if($scope.formvalidation.$valid) {
applicationService.save(name,$scope.home);
}
}
<form> should come after controller declaration
<div ng-app="app">
<ion-view ng-controller="ValidationCheck">
<form name="formvalidation">
<ion-content>
var app = angular.module("app", []);
app.controller('ValidationCheck', function($scope) {
$scope.check = function(formvalidationBoolean) {
alert(formvalidationBoolean);
var name = {
'name': $scope.name
};
$scope.submitted = true;
if (formvalidationBoolean) {
//applicationService.save(name, $scope.home);
}
}
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="app">
<ion-view ng-controller="ValidationCheck">
<form name="formvalidation">
<ion-content>
<div>
<strong>User:</strong>
<br/>
<input ng-model="name" type="text" name="name" required/>
<ng-messages for="formvalidation.name.$error" ng-if="formvalidation.name.$invalid">
<div ng-messages-include="templates/admin/validation.html"></div>
<ng-messages>
</div>
</from>
<button ng-click="check(formvalidation.$valid)">Submit</button>
</div>
You are sending boolean value "ng-click="check(formvalidation.$valid)", So your statement if(formvalidation.$valid){ inside controller is wrong.
And You need to change "=" to ":" in var name = {'name': $scope.name };
I have the following Angular code
controller:
app.controller('MainCtrl', function($scope) {
var vm = this;
vm.job = null;
vm.create = function (job) {
vm.job = job;
}
});
HTML:
<div ng-controller="MainCtrl as vm">
<span data-ng-bind="vm.job.position"></span>
<form name="form" data-ng-submit="vm.create(vm.job)">
<label for="position">Position</label>
<input id="position" name="vm.job.position" type="text" data-ng-model="vm.job.position" />
<button>Create</button>
</form>
</div>
But when I submit the form I don't see the Position value.
Any idea why?
Because
You forgot to add ng-app to the body or html element
You're using angular 1.0.8, which is completely obsolete, and doesn't support controller as.
Note that you don't even need to submit, since the job you're binding is already vm.job. Your create(vm.job) method call does nothing: it assigns vm.job to vm.job.
I have html template:
<div ng-controller="MyController">
<form novalidate>
Name: <input type="text" ng-model="user.name" />
<button ng-click="greet(user)">GREET</button>
</form>
</div>
And I add it like this:
"<div ng-include src=\"'/views/template.html'\"></div>"
This is function in MyController:
$scope.user = {}
$scope.greet = function (user) {
alert('hello ' + user.name)
}
But when I click on button it makes submit it doesn't call greet function.
I also tried to add type="button" to it but it is the same.
Here is the working solution so I don't know what I am missing.
use type="submit" with the submit button, and input instead of button.
I have a form like this -
<form name="myForm" novalidate>
There are some fields in the form which I am validating and then submitting the form like this -
<input type="button" ng-click="Save(data)" value="Save">
In the controller, I want to check if the form is not valid then Save() should show some error on the page. For that, I am setting up a watch like this -
$scope.$watch('myForm.$valid', function(validity) {
if(validity == false)
// show errors
});
But I am always getting this error on running it -
Cannot read property '$valid' of undefined
Can someone explain why?
Thanks
You just misspelled "myForm" in your controller code. In order to remove the error, Write "myform" instead of "myForm".
However I expect what you want is like this.
$scope.Save = function(data){
alert($scope.myform.$valid);
}
I setup jsfiddle.
In my case I was wrapping the form in a modal created in the controller and therefore got the same error. I fixed it with:
HTML
<form name="form.editAddress" ng-submit="save()">
<div class="form-group">
<label for="street">Street</label>
<input name="street" type="text" class="form-control" id="street" placeholder="Street..." ng-model="Address.Street" required ng-minlength="2" />
<div class="error" ng-show="form.editAddress.street.$invalid">
<!-- errors... -->
</div>
</div>
<button type="submit" class="btn btn-primary" >Save address</button>
</form>
JS
angular.module("app").controller("addressController", function ($scope, $uibModal, service) {
$scope.Address = {};
$scope.form = {};
$scope.save = function() {
if (modalInstance !== null) {
if (isValidForm()) {
modalInstance.close($scope.Address);
}
}
};
var isValidForm = function () {
return $scope.form.editAddress.$valid;
}
});
Am quite new to AngularJS. The issue is i have a form with two fields- name and profile pic as shown in the code below. I am using ng-upload (https://github.com/twilson63/ngUpload). I want the 'Save' button to work only if either field is dirty and the upload isn't happening currently so that multiple post requests are not triggered on the user clicking on the 'Save' button. But looks like, $dirty works fine with the 'name' field but not with the 'profile pic' field. Am i just missing something? How to go about it keeping it as simple as possible for a beginner of AngularJS. Any help would be appreciated.
//Code
<form id='picUpload' name='picUpload' ng-upload-before-submit="validate()" method='post' data-ng-upload-loading="submittingForm()" action={{getUrl()}} data-ng-upload='responseCallback(content)' enctype="multipart/form-data">
<input type="text" name="name" data-ng-model="user.name" maxlength="15" id="user_screen_name" required>
<input type="file" name="profilePic" data-ng-model="user.profilePic" accept="image/*">
<div class="form-actions">
<button type="submit" class="btn primary-btn" id="settings_save" data-ng-disabled="!(picUpload.name.$dirty|| picUpload.profilePic.$dirty) || formUploading">Save changes</button>
</div>
</form>
//In my JS code
$scope.submittingForm = function(){
$scope.formUploading = true;
}
Regards!
I made a directive ng-file-dirty
.directive('ngFileDirty', function(){
return {
require : '^form',
transclude : true,
link : function($scope, elm, attrs, formCtrl){
elm.on('change', function(){
formCtrl.$setDirty();
$scope.$apply();
});
}
}
})
I haven't used ng-upload before, but you can use onchange event of input element. onchange event is fired whenever user selects a file.
<input type="file" onchange="angular.element(this).scope().fileNameChanged(this)" />
Javascript :
var app = angular.module('MainApp', []);
app.controller('MainCtrl', function($scope)
{
$scope.inputContainsFile = false;
$scope.fileNameChanged = function(element)
{
if(element.files.length > 0)
$scope.inputContainsFile = true;
else
$scope.inputContainsFile = false;
}
});
So now you can check if inputContainsFile variable is true along with dirty check of name field