Develop Reference

Serialize form data into a specific JSON format

I have a form that looks like this:
<form id="myForm" ng-submit="submitForm()">
<select name="ItemName" ng-controller="ItemController">
<option value="" selected disabled>Select</option>
<option ng-repeat="item in items track by $index" value="{{item.Id}}">{{item.Name}}</option>
</select>
<input type="text" name="Description" />
<button type="submit">Submit</button>
</form>
My AngularJS FormController then does the following:
form.controller.js
app.controller('FormController', function($scope, $http) {
$scope.submitForm = function () {
$http({
method: 'POST',
url: '/Path/To/MVC/Action',
data: { json: JSON.stringify($('#myForm').serializeArray()) }
})
.success(function(data) {
console.log('success');
})
.error(function(error) {
console.log('failure);
});
};
});
I want my MVC controller to receive a json string that looks like this:
{
"Name": "some item name",
"Description": "some item description"
}
With serialize(), I got something like:
Name=some%20item%20name&Description=some%20item%20description
...and with serializeArray(), I got something like:
[{
name: "Name",
value: "some item name"
},
{
name: "Description",
value: "some item description"
}]
How do I get the JSON string in the format I'm looking for?

Is this what you are looking for? I am a little unclear with what items is, etc:
https://plnkr.co/edit/IFHNtxS226Hq0cCMJYi1?p=preview
$scope.submitForm = function(formData){
console.warn(formData);
$http({
method: 'POST',
url: '/Path/To/MVC/Action',
data: { json: formData }
})
.success(function(data) {
console.log('success');
})
.error(function(error) {
console.log('failure');
})
}
});

Are you using WebAPI?
You can replace your select for this:
<select id="selectId" type="text" ng-required="true" name="nameOfSelect" class="form-control" ng-model="yourModel.ObjectForThisSelect" placeholder="String Inside you Select"
ng-options="info.Value as info.Text for info in items>
</select>
then you should post back "yourModel" object, this way Angular when posting back will serialize only the selected option value.
Additionally in case you are using WebApi you can check in your WebApiConfig class, Register(HttpConfiguration config) method, that you are formatting Json strings in the desired format: i.e.
var jsonFormatter = GlobalConfiguration.Configuration.Formatters.JsonFormatter;
jsonFormatter.SerializerSettings.PreserveReferencesHandling = Newtonsoft.Json.PreserveReferencesHandling.Objects;
jsonFormatter.SerializerSettings.ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Serialize;
jsonFormatter.SerializerSettings.ContractResolver = new DefaultContractResolver();

Select2 can't change value

I am dynamically loading a Select2 input with Ajax. Everything works fine, however, when I try to select a different value, It won't change for some reason. Here's an example of my problem: https://gyazo.com/f9ad7c3ead5fcd1d62740cc44f8d9691
As you can see, the value doesn't change when I click on it. Why does this happen? Maybe it helps when I say that both the first value and the other value have an ID of 1 (its data from different tables in the database) but different texts... How can I make it work?
$('.partnersupplierselect').select2({
ajax: {
dataType: "json",
type: "POST",
data: function (params) {
var group = $(this).parent().parent();
var choice = group.find('.partnersupplier:radio:checked').val();
return {
term: params.term,
'_token': token,
'choice': choice
};
},
url: '{{asset('logs/create/bmi/getpartnerssuppliers')}}',
cache: true,
processResults: function (data) {
return {
results: data
};
}
},
"language": {
"noResults": function () {
return "Geen partners / leveranciers gevonden.";
}
},
escapeMarkup: function (markup) {
return markup;
}
});
$('.partnersupplier').on('change', function(){
var group = $(this).parent().parent();
group.find('.partnersupplierselect').select2('val', '');
group.find('.partnersupplierselect').select2('data', null);
});
Here's the HTML, but that shouldn't be the problem. But in case someone wants to see it:
<div class="group">
<label class="mdl-radio mdl-js-radio mdl-js-ripple-effect" for="partner">
{{Form::radio('partnersupplier', 'partner', true, array('class' => 'mdl-radio__button partnersupplier', 'id' => 'partner'))}}
<span class="mdl-radio__label">Test1 </span>
</label>
<label class="mdl-radio mdl-js-radio mdl-js-ripple-effect margin-radio" for="supplier">
{{Form::radio('partnersupplier', 'supplier', false, array('class' => 'mdl-radio__button partnersupplier', 'id' => 'supplier'))}}
<span class="mdl-radio__label">Test2 </span>
</label>
<div class="form-group selectdiv" >
<label for="yearlypartnersuppliermaintainance">Blablabla<br></label>
<select id="yearlypartnersuppliermaintainance" name="yearlypartnersuppliermaintainance" class="searchselect searchselectstyle partnersupplierselect">
</select>
</div>
</div>

I figured it out!
I changed:
$('.partnersupplier').on('change', function(){
var group = $(this).parent().parent();
group.find('.partnersupplierselect').select2('val', '');
group.find('.partnersupplierselect').select2('data', null);
});
to:
$('.partnersupplier').on('change', function(){
var group = $(this).parent().parent();
group.find('.partnersupplierselect').empty().trigger('change');
});
For some reason, this works and the first thing doesn't. Weird, but at least I got it working!

Symfony2: manually submit a form without class via AJAX

We have an old website where I have implemented a form that is sent by AngularJS to a PHP script and after processing an email message get sent. If the form is not valid the PHP script returns a JSON with the validation errors. Since we already use Symfony for some other applications (REST APIs), I thought it would be nice to reimplement my plain PHP script in Symfony.
For the sake of simplicity I put only a small but relevant fragment of my code. This is what I have:
HTML (ng-app is bound on body tag, not shown here):
<form name="infoscreenForm" class="form-horizontal" enctype="multipart/form-data" ng-controller="FormController">
<div class="form-group">
<div class="col-lg-1 control-label">*</div>
<div class="col-lg-11 input-group">
<input type="text" class="form-control" id="contact_person"
name="contact_person" ng-model="formData.contactPerson"
placeholder="Kontaktperson">
</div>
<span class="text-warning" ng-show="errors.contactPerson">
{{ errors.contactPerson }}
</span>
</div>
<div class="form-group">
<div class="col-lg-1 control-label">*</div>
<div class="col-lg-11 input-group">
<span class="input-group-addon">#</span>
<input type="email" class="form-control" id="email" name="email"
ng-model="formData.email" placeholder="E-Mail">
</div>
<span class="text-warning" ng-show="errors.email">
{{ errors.email }}
</span>
</div>
<div class="form-group">
<div class="col-lg-1 control-label"> </div>
<div class="col-lg-11 input-group">
<input type="file" class="form-control" id="file" name="file"
file-model="formData.file"
accept="application/pdf,image/jpeg,image/png">
</div>
<span class="text-warning" ng-show="errors.file">
{{ errors.file }}
</span>
</div>
<div class="form-group">
<button type="submit" class="btn btn-default" id="submit"
name="submit" ng-click="submitForm()">
Formular absenden
</button>
</div>
</form>
JS:
var app = angular.module('InfoscreenApp', []);
app.directive('fileModel', ['$parse', function ($parse) {
return {
restrict: 'A',
link: function (scope, element, attrs) {
var model = $parse(attrs.fileModel);
var modelSetter = model.assign;
element.bind('change', function () {
scope.$apply(function () {
modelSetter(scope, element[0].files[0]);
});
});
}
};
}]);
app.factory('multipartForm', ['$http', function ($http) {
return {
post : function (uploadUrl, data) {
var fd = new FormData();
for (var key in data) {
fd.append(key, data[key]);
}
return $http.post(uploadUrl, fd, {
transformRequest: angular.identity,
headers : { 'Content-Type': undefined }
});
}
};
}]);
app.controller('FormController', ['$scope', 'multipartForm', function ($scope, multipartForm) {
$scope.formData = {};
$scope.submitForm = function () {
var uploadUrl = 'http://localhost:8000/infoscreen';
multipartForm.post(uploadUrl, $scope.formData)
.then(function (data) {
console.log(data);
if (data.success) {
$scope.message = data.data.message;
console.log(data.data.message);
} else {
$scope.errors = data.data.errors;
}
});
};
}]);
With the plain PHP script everything works fine. Here is what I tried to do in Symfony:
<?php
namespace AppBundle\Controller;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Form\Extension\Core\Type\TextType;
use Symfony\Component\Form\Extension\Core\Type\EmailType;
use Symfony\Component\Form\Extension\Core\Type\FileType;
use Symfony\Component\Form\Extension\Core\Type\SubmitType;
use Symfony\Component\Validator\Constraints\NotBlank;
use Symfony\Component\Validator\Constraints\Email;
class DefaultController extends Controller
{
/**
* #Route("/infoscreen", name="infoscreen")
*/
public function infoscreenAction(Request $request)
{
$defaultData = array('message' => 'infoscreenForm');
$form = $this->createFormBuilder($defaultData)
->add('contactPerson', TextType::class, array(
'constraints' => array(
new NotBlank(),
)
))
->add('email', EmailType::class, array(
'constraints' => array(
new NotBlank(),
new Email(),
)
))
->add('file', FileType::class)
->add('submit', SubmitType::class)
->getForm();
;
$form->submit($request->request->get($form->getName()));
$data = $form->getData();
if ($form->isValid()) {
echo 'Alles ok';
// send an email
}
$errors = array();
$validation = $this->get('validator')->validate($form);
foreach ($validation as $error) {
$errors[$error->getPropertyPath()] = $error->getMessage();
}
$response = new Response();
$response->setContent(json_encode(array(
'form_data' => $data,
'errors' => $errors,
)));
$response->headers->set('Content-Type', 'application/json');
return $response;
}
}
CSRF is disabled in config.yml. The form is not bound to an entity class. After submitting the form I get the following object in the console:
{
data: Object,
status: 200,
config: Object,
statusText: "OK"
}
The important part is in data: Object:
{
form_data: {
contactPerson: null,
email: null,
message: "infoscreenForm",
file: null
},
errors : {
children[contactPerson].data = "This value should not be blank",
children[email].data = "This value should not be blank"
}
}
This happens when I submit the form with some values entered in the fields. It seems that the submitted data is not bound to the form in the controller. I'm probably missing something, but I stuck here and have no idea how to proceed. I tried with $form->bind($request), $form->handleRequest($request) and few other things, but it didn't work. Even if I bind the fields individually, I still don't get their values in the form.
Can somebody please help me.
Thanks in advance.

Try
$this->get('form.factory')->createNamedBuilder(null, 'form', $defaultData)
instead of
$this->createFormBuilder($defaultData)

Edit MEANJS list in the list page

I am using MEAN JS, i am trying to edit the list items on the list page, but it shows the error as below. i have initiated the data using ng-init="find()" for the list and ng-init="findOne()" for individual data.
Error: [$resource:badcfg] Error in resource configuration for action `get`. Expected response to contain an object but got an array
HTML
Below i the form inside the controller where it initiates the find() and findOne().
<div ng-controller="OrdersController" ng-init="find()">
<div>
<div class="order-filter">
<div ng-repeat="order in orders">
<form ng-init="findOne()" name="orderForm" class="form-horizontal" ng-submit="update(orderForm.$valid)" novalidate>
<input type="text" class="" ng-model="order.title">
<input type="text" class="" ng-model="order.content">
<div class="form-group">
<input type="submit" value="Update" class="btn btn-default">
</div>
</form>
</div>
</div>
</div>
</div>
Controller
$scope.update = function (isValid) {
$scope.error = null;
if (!isValid) {
$scope.$broadcast('show-errors-check-validity', 'orderForm');
return false;
}
var order = $scope.order;
order.$update(function () {
$location.path('orders/' + order._id);
}, function (errorResponse) {
$scope.error = errorResponse.data.message;
});
};
$scope.find = function () {
Orders.query(function loadedOrders(orders) {
orders.forEach(appendFood);
$scope.orders = orders;
});
};
$scope.findOne = function () {
$scope.order = Orders.get({
orderId: $stateParams.orderId
});
};

You need to check your Orders Service which probably is using $resource to provide your API requests (Orders.query)
It should look something like this:
function OrdersService($resource) {
return $resource('api/orders/:orderId', {
orderId: '#_id'
}, {
update: {
method: 'PUT'
}
});
}
The style may be different depending on which version of mean you're using. By default, the $resource query will expect an array of results, but if for some reason you've set "isArray" to false then it will expect an object.
https://docs.angularjs.org/api/ngResource/service/$resource

How to properly execute a function inside ng-repeat

SITUATION:
I am making an app in AngularJs that assign permissions.
In order to do this i have three nested ng-repeat.
First loop: display PERMISSION GROUP
Second loop: For each permission group display CATEGORIES.
Inside this loop execute a function that will get all the SUB CATEGORIES for each category
Third loop: display SUB CATEGORIES
ISSUE:
The problem is in the execution of the function inside the second loop.
ATTEMPT 1 - ng-init:
<div class="row" ng-repeat="permission_group in list_permission_groups">
<div class="col-sm-3">
<h3>
{{permission_group.permission_group_name}}
</h3>
</div>
<div class="col-sm-9">
<ul>
<li ng-repeat="category in list_categories">
<span>
{{ category.name }}
</span>
<div class="checkbox">
<label>
<div ng-init="temp_result = get_Sub_Categories(category.category_id)">
<p ng-repeat="sub_category in temp_result">
{{ sub_category.name }}
</p>
</div>
</label>
</div>
</li>
</ul>
</div>
</div>
In the controller:
$scope.get_Sub_Categories = function(category_id) {
$http({
url: base_url + 'main/json_get_list_sub_categories',
data: {
category_id: category_id
},
method: "POST"
}).success(function(data) {
return data;
});
}
Te behavior is quite strange. Porbably due to dirty checking the page is loaded 682 times.
No result is displayed.
ATTEMPT 2 - ng-click: (only for debug)
<div class="row" ng-repeat="permission_group in list_permission_groups">
<div class="col-sm-3">
<h3>
{{permission_group.permission_group_name}}
</h3>
</div>
<div class="col-sm-9">
<ul>
<li ng-repeat="category in list_categories">
<span>
{{ category.name }}
</span>
<div class="checkbox">
<label>
<button ng-click="get_Sub_Categories(category.category_id)">
GET SUB-CATEGORIES
</button>
{{ list_sub_categories }}
</label>
</div>
</li>
</ul>
</div>
</div>
In the controller:
$scope.get_Sub_Categories = function(category_id) {
$http({
url: base_url + 'main/json_get_list_sub_categories',
data: {
category_id: category_id
},
method: "POST"
}).success(function(data) {
$scope.list_sub_categories = data;
});
}
This time the page is loaded only once.
If I press the button the proper sub-categories are displayed BUT of course not only for the corresponding category but FOR ALL, because i am modifying the var in the global scope.
THE AIM:
What I want to obtain is simply displaying all the proper sub-categories for each category.
Without using a button, but simply see all the proper content as soon as the page load.
But i don't understand how can this be done properly in AngularJs.
THE QUESTION:
How can i properly execute a function inside a ng-repeat that return and display different data for each loop?
EDIT - DUMP OF EXAMPLE OF SUB-CATEGORIES FOR ONE CATEGORY:
[{
"sub_category_id": "1",
"name": "SUB_CATEGORY_1",
"category_id_parent": "1",
"status": "VISIBLE"
}, {
"sub_category_id": "2",
"name": "SUB_CATEGORY_2",
"category_id_parent": "1",
"status": "VISIBLE"
}, {
"sub_category_id": "3",
"name": "SUB_CATEGORY_3",
"category_id_parent": "1",
"status": "VISIBLE"
}, {
"sub_category_id": "4",
"name": "SUB_CATEGORY_4",
"category_id_parent": "1",
"status": "VISIBLE"
}]

Calling a function inside ng-repeat is same as normal one. Since you need to display the sub categories at the time of page loading its better to get these data beforehand.
Asynchronously loading sub categories will not fit into this scenario.
Here is a minimal snippet achieving this (JS Fiddle)
<div ng-app="app" ng-controller="ctrl">
<div ng-repeat="category in model.categories"> <span> Category: {{ category.name }} </span>
<p ng-repeat="subCategory in getSubCategories(category.Id)">{{ subCategory.name }}</p>
</div>
</div>
Controller
angular.module("app", [])
.controller('ctrl', ['$scope', function ($scope) {
$scope.model = {
categories: [{
"Id": 1,
name: '1'
}, {
"Id": 2,
name: '2'
}],
subCategories: [{
"parentId": 1,
name: 'a1'
}, {
"parentId": 1,
name: 'a2'
},
{
"parentId": 2,
name: 'a3'
}]
}
$scope.getSubCategories = function(parentId){
var result = [];
for(var i = 0 ; i < $scope.model.subCategories.length ; i++){
if(parentId === $scope.model.subCategories[i].parentId){
result.push($scope.model.subCategories[i]);
}
}
console.log(parentId)
return result;
}}])

The subcategory example did not work for my case and it took my code into an infinte loop for some reason. may be because i was using an accordion.
I achieved this function call inside ng-repeat by using ng-init
<td class="lectureClass" ng-repeat="s in sessions" ng-init='presenters=getPresenters(s.id)'>
{{s.name}}
<div class="presenterClass" ng-repeat="p in presenters">
{{p.name}}
</div>
</td>
The code on the controller side should look like below
$scope.getPresenters = function(id) {
return SessionPresenters.get({id: id});
};
While the API factory is as follows:
angular.module('tryme3App').factory('SessionPresenters', function ($resource, DateUtils) {
return $resource('api/session.Presenters/:id', {}, {
'query': { method: 'GET', isArray: true},
'get': {
method: 'GET', isArray: true
},
'update': { method:'PUT' }
});
});

I think that the good solution here is to use Angular Directive.
You can see an example of directive used in a ng-repeat here : Angular Directive Does Not Evaluate Inside ng-repeat
For more information on directives, you can check the official documentation : https://docs.angularjs.org/guide/directive

I would create a factory for category then move your get_sub_categories function into this new factory.