I have a MVC2 web application in which i have a view containing a simple form as follows:
<%using (Html.BeginForm("Action", "Controller", FormMethod.Post, new { enctype = "multipart/form-data", #id = "frmAddNewObservationPhoto" }))
{%>
<%= Html.AntiForgeryToken()%>
<strong>1. Enter Photo Description</strong><br />
<%= Html.TextArea("photoDescription", Model.photoDescription, new { #style = "height: 100px", #id = "photoDescription" })%><br />
<strong>
2. Browse New Photo:<br />
<%= Html.HiddenFor(x => x.questionNo)%>
<%= Html.HiddenFor(x => x.observationID)%>
<input id="file" type="file" name="file">
<a class="resolveTask" href="javascript:AddNewObservationPhoto()"></a><br />
Or Select Saved Photo: <br />
</strong>
<br />
<%} %>
I have tested on desktop browsers (firefox, IE, Chrome) and the the file the user selects is posted to my action correctly. My action code begins as follows:
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult AddNewObservationPhoto(Guid observationID, string photoDescription, decimal questionNo)
{
TaskFireObservations fireObservation = FireHelper.GetObservationByID(observationID, _session);
if (Request.Files.Count > 0)
{
For completion the javascript is as follows:
function AddNewObservationPhoto() {
var photoDescription = $('#photoDescription').val();
if (photoDescription.length == 0) {
alert('Please enter the photo description');
}
else {
$('#frmAddNewObservationPhoto').submit();
}
};
My problem is that when i test this on an iPad version 6.0.1 (hence mobile safari browser), there are no files posted to the action. I have tested on the chrome browser for the ipad and it works fine on there. Ive also tested on an online ipad emulator and it works; i.e. the selected file is posted to the action and then saved to the relevant location.
Does anyone know why this would be happening? I hope ive explained the issue clearly enough.
Thanks.
I am putting this down to a bug in mobile safari as this happens intermittently, i.e. on some occasions the file is posted and on others it does nothing.
Related
I have a form I want to submit automatically whenever any input field is changed. I am using Turbo Streams, and if I use onchange: "this.form.submit()" it isn't captured by Turbo Streams and Rails uses a standard HTML response. It works fine when clicking the submit button. How can I work around this?
There is a discussion on the hotwire forum, where Mark Godwin figured out why form.submit() isn't working with turbo:
Turbo intercepts form submission events, but weirdly, the JS formElement.submit() method does not trigger the submit event.
And Jacob Daddario figures out that you can use form.requestSubmit() instead:
It turns out that the turbo-stream mechanism listens for form submission events, and for some reason the submit() function does not emit a form submission event. That means that it’ll bring back a normal HTML response. That said, it looks like there’s another method, requestSubmit() which does issue a submit event.
So you can change your code slightly, and use requestSubmit() if a browser supports it, and use submit() if not:
onchange: "this.form.requestSubmit ? this.form.requestSubmit() : this.form.submit()"
Update:
As BenKoshy pointed out, in Turbo 7.1.0, a polyfill was added so you can use form.requestSubmit() without checking for browser support, so you can add this to your input field:
onchange: "this.form.requestSubmit()"
I need to implement this for an app with lots of forms. I wound up using Stimulus. Below is the whole controller:
import { Controller } from "stimulus"
const _ = require("lodash")
export default class extends Controller {
connect() {
let that = this;
that.element.addEventListener('change', _.debounce(that.handleChange, 500))
}
handleChange(event) {
event.preventDefault()
// event.target.name // => "user[answer]"
// event.target.value // => <user input string>
event.target.form.requestSubmit()
}
}
and here it's used in a form with a single text input. NOTE the controller is attached to the form, not to the inputs.
<%= turbo_frame_tag dom_id(form_model) do %>
<%= form_with model: form_model,
format: :turbo_stream,
html: { data: { controller: "buttonless-form" } } do |f| %>
<%= f.hidden_field :question_id, value: question.id %>
<%= f.text_field :answer_value, class: "input shadow wide", placeholder: "Enter your answer here" %>
<% end %>
<div id=<%= "question_#{question.id}_output" %>>
<p> <!-- feedback to the user shows up here via Turbo -->
</div>
<% end %> <!-- end turbo frame -->
I am trying to create a simple web app in google scripts with the HTML api.
code.gs
function doGet() {
return HtmlService.createHtmlOutputFromFile('index');
}
function processForm(formObject) {
var formBlob = formObject.myFile;
var driveFile = DriveApp.createFile(formBlob);
return driveFile.getUrl();
}
index.html
<script>
function updateUrl(url) {
var div = document.getElementById('output');
div.innerHTML = 'Got it!';
}
</script>
<form id="myForm">
<input name="myFile" type="file" />
<input type="button" value="Submit"
onclick="google.script.run
.withSuccessHandler(updateUrl)
.processForm(this.parentNode)" />
</form>
<div id="output"></div>
The form fails to submit. I´m using google chrome Versión 30.0.1599.101 m
This appears in the console: Uncaught NetworkError: Form submission failed.
Here is the app: https://script.google.com/d/1yrgM20n1ZI99bChN2qtQWgGck36OccLN3A16Gn7tCPvsJw0EcK_ql7C5/edit?usp=sharing
Maybe you should add encoding="multipart/form-data" attribute to form tag.
If not solved already – did you try changing the input type from "button" to "submit"? On top of that I'd also try giving it another value than "Submit" since that might interfere with the actual submit parameter.
i have a MVC ASP.NET project, when i run it in my laptop its works fine, but when i make a deploy to the server, some thing doesnt works, i pass my solution to the server and install the VS for debugging here and when i run it from VS it´s works fine, but if i publish de page, i doesnt work.
here is the view
_layout.cshtml
<div class = "brand" style = "width:10%;text-align:center; max-height:40px">
<a href="#Url.Action("Index", "Home")" style = "color:#DDDDDD;text-align:center;margin:auto auto auto auto">
#if(User.Identity.IsAuthenticated)
{
Html.RenderAction("Imagen","Home");
}
</a>
</div>
my method "Imagen" from my controller "Home"
public ActionResult Imagen()
{
usuarios usuario = CashControl.usuarios.ToList().FirstOrDefault();
usuarios usur = new usuarios();
usur.imagen = usuario.imagen;
return PartialView("Imagen",usur);
}
my partial view Imagen.cshtml
#model CashControl.Models.usuarios
<img src="../uploads/#Model.imagen" />
Note: the projects works fine in local, but in deployment not, dont display the image because the model returns null :/, i view the html code in the firebug and the route for the image is
<img src="../uploads/" />
I would like to automatically click the submit button of an Ajax enabled form, so that the user does not have to click the button (but can optionally).
Right now, I'm working on the first boundary, which is to call the form from Javascript, so that at the very least, once i build my timer, I will have this part figured out.
I've tried many ways to do this, and NONE work. Please keep in mind that this is an ASP.NET MVC 4 Mobile application (which uses jquery.mobile) but I do have the jquery.mobile ajax disabled so that my button works at all (creating manual ajax based forms with updating divs, does not work in a jquery.mobile app because it hooks on the submit of all ajax forms).
So my current button works fine, I just can't seem to fire it programmatically.
I have my form:
<% using (Ajax.BeginForm("SendLocation", null, new AjaxOptions { InsertionMode = InsertionMode.Replace, UpdateTargetId = "result", HttpMethod = "POST" }, new { #id = "locationForm" }))
{ %>
<ul data-role="listview" data-inset="true">
<li data-role="list-divider">Navigation</li>
<li><%: Html.ActionLink("About", "About", "Home")%></li>
<li><%: Html.ActionLink("Support", "Support", "Home")%></li>
<li data-role="list-divider">Location</li>
<%: Html.HiddenFor(model => model.GPSLongitude)%>
<%: Html.HiddenFor(model => model.GPSLatitude)%>
<li><input type="submit" id="submitButton" value="Send" /></li>
</ul>
<% } %>
I have tried to do this in javascript:
$.ajax({
type: "POST",
url: action,
success: function () {
alert('success');
}
});
And I do get the server code firing that normally would. However, the DIV is not updated and also, the model was not intact either (it existed with all internal values null, so i assume newly instantiated).
I have also tried different ways to fire the form:
var form = $('#locationForm', $('#myForm'));
if (form == null) {
alert('could not find form');
} else {
alert('firigin on form');
form.submit(function (event) { eval($(this).attr("onsubmit")); return false; });
form.submit();
}
This did not work either:
var f = $('#locationForm', $('#myForm'));
var action = f.attr("action");
var data = f.attr("data");
$.post(action, data, function() { alert('back'); });
Which were all ways to do this that I found throughout the web.
None of them worked to fire the form and have it work the way it would normally as if a user had pressed the submit button themselves. Of course, once this fails, if I hit my submit button, it works perfectly...
Using Chrome Developer Tools, I found that the $.ajax call needs to have valid data before it will even attempt to function.
I was getting a silent Internal 500 Error on the post. But of course because of AJAX it was silent and the controller was not firing because it didn't get past IIS.
So I found out that the data I was sending, saying its JSON, was not and the .serialize() does not use JSON formatting. I tried to incorporate the JSON Javascript libraries to convert the object into JavaScript, however, this does not work either, because the Data Model object (or the form object) seems to not be compatible with those libraries. I would get errors in the JavaScript console and those libraries would crash when trying.
I decided to actually just pass the object I want manually:
var encoded = '{ GPSLongitude: ' + $('#GPSLongitude', $('#myForm')).val() + ',GPSLatitude: ' + $('#GPSLatitude', $('#myForm')).val() + '}';
Which passed the hidden fields i wanted to send (GPS LON/LAT) to the controller, and the model was intact in the controller call!
Now, for anyone that is reading this answer. the actual AJAX update process that is supposed to update the view, failed to work. Although for my purpose, I did not actually need the view to update correctly. Eventhough a partial view is returned, the special AJAX call seems to break the linkage between the form's div to update.
However, since the data was passed to the controller intact, this basically passed the GPS data that I needed to the server which was my ultimate goal.
make sure you are including the proper js libraries.
you need. jquery.js, jquery.unobtrusive-ajax.js
make sure unobtrusivejavascriptenabled = true in the web.confg
<appSettings>
<add key="UnobtrusiveJavaScriptEnabled" value="true"/>
</appSettings>
please try $('#locationForm').submit();
does it give error message?
if you're using i.e. you can look use the develper tools to look at network traffic to make sure nothing is sent.
i have created a page tab app for which i have set all the parameters under Auth Dialog in the app settings.
Now when i send a friend request through my app, and my friend clicks on the app request, he is able to see the authentication box describing the app and the permissions requested etc.
But if anyone visits my page on which i have added the app, and clicks on the app from there, it directly takes the user to the page tab without displaying the auth box.
Is this how it is supposed to work from a page? is it possible to display the auth box for a user coming to the app from a page?
Secondly, i have added a multi friend selector which opens by default in a popup as it is supposed to.
Is it possible to display it in the page itself instead of a popup?
I tried adding the display: 'page' option but it din work.
I have used the same code from : https://developers.facebook.com/docs/reference/dialogs/requests/
...
<body>
<div id="fb-root"></div>
<p>
<input type="button"
onclick="sendRequestToRecipients(); return false;"
value="Send Request to Users Directly" />
<input type="text" value="User ID" name="user_ids" />
</p>
<p>
<input type="button"
onclick="sendRequestViaMultiFriendSelector(); return false;"
value="Send Request to Many Users with MFS" />
</p>
<script>
window.fbAsyncInit = function() {
FB.init({
appId : XXXXXXXXXXX,
status : true,
cookie : true,
xfbml : true,
oauth : true,
});
};
(function(d){
var js, id = 'facebook-jssdk';
if (d.getElementById(id)) {
return;
}
js = d.createElement('script');
js.id = id;
js.async = true;
js.src = "//connect.facebook.net/en_US/all.js";
d.getElementsByTagName('head')[0].appendChild(js);
}(document));
</script>
<script>
function sendRequestToRecipients() {
var user_ids = document.getElementsByName("user_ids")[0].value;
FB.ui({method: 'apprequests',
message: 'My Great Request',
to: user_ids,
}, requestCallback);
}
function sendRequestViaMultiFriendSelector() {
FB.ui({method: 'apprequests',
message: 'My Great Request'
}, requestCallback);
}
function requestCallback(response) {
// Handle callback here
}
</script>
...
Any help in this regard would be very much appreciated.
Is this how it is supposed to work from a page?
Yes. Authenticated referrals don’t work when the app is accessed from a page directly.
is it possible to display the auth box for a user coming to the app from a page?
Of course – analyze the signed_request parameter, and react accordingly (meaning, display the auth dialog yourself, server- or client-side).