Rails delete link JavaScript ajax call - ruby-on-rails

I want to create an ajax delete call. When the link is clicked, the confirm box should appear and then the p tag fades out (comment). The problem is just how the ajax call should be and how to show the confirm box.
HTML view:
<a rel="nofollow" data-method="delete" data-confirm="Er du sikker?" class="softdelete" href="/blogs/5/comments/18">slet</a>
jQuery:
<script type="text/javascript">
$(document).ready(function() {
$('.softdelete').click(function () {
var Url = $(this).attr('href');
var Data = $(this).attr('data-method');
$(this).closest('p').fadeOut(1000);
$.post(Url);
return false;
});
});
</script>
When clicked on the delete link, the comment fades out, but it is not destroyed. Also no confirm box appeared.

You're using a post request, so the action isn't properly routed: Rails expects a delete request.
Here is the way to proceed with jQuery:
$.ajax({
url: your_url,
type: 'DELETE',
success: function(result) {
// Do something with the result
}
});

Related

JQuery-ui Tabs - reload page with completely new content not working

I'm loading in a report and displaying it with jquery-ui in tab format. The report is returned by an ajax call in json, and a function is formatting it into HTML. Example code below:
<div id="reportdiv">
</div>
<script>
function displayreport(objectid)
{
$( "#reportdiv" ).hide();
$( "#reportdiv" ).html("");
$.ajax({
type: "GET",
headers: { 'authtoken': getToken() },
url:'/reportservice/v1/report/'+objectid.id,
success: function(data){
if(data == null)
{
alert("That report does not exist.");
}
else
{
var retHTML = dataToTabHTML(data.config);
$("#reportdiv").html(retHTML).fadeIn(500);
$(function() {
tabs = $( "#reportdiv" ).tabs();
tabs.find( ".ui-tabs-nav" ).sortable({
axis: "x",
stop: function() {
tabs.tabs( "refresh" );
}
});
});
}
}
});
}
</script>
This works fine the first time displayreport is called. However, if the user enters another value and runs displayreport again, the "tabs" format is completely lost (the tabs are displayed as links above my sections, and clicking on a link takes you to that section further down the page).
I figured completely re-setting the reportdiv html at the beginning of the function would bring me back to original state and allow it to work normally every time. Any suggestions?
After more testing, found that destroy was the way to go. If I've set up tabs already, run the destroy, otherwise, skip the destroy (http://jsfiddle.net/scmxyras/1/) :
if(tabs!=undefined)$( "#reportdiv" ).tabs("destroy");

Load partial view into div on button click without refreshing page

I know this question might be repeated but my query is different let me explain, I have a drop down in page and by selecting value in drop down list,and I click on submit button.. I want by click on submit button I need to load partial view in tag that is list of records of selected drop down list value.
i tried this :
$("#btnclick").click(function () {
$.ajax({
type: 'POST',
url: '#Url.Content("~/Search/MDLNoDataList")',
data: mdlno,
success: function (data) { $("#viewlist").innerHtml = data; }
});
});
but not getting result And I m using these many jquery plugins
<script src="../../Scripts/jquery-migrate-1.0.0.js" type="text/javascript"></script>
<script src="../../Scripts/jquery.unobtrusive-ajax.js" type="text/javascript"></script>
<script src="../../Scripts/jquery-1.5.1.min.js" type="text/javascript"></script>
If i understand correctly, below is what you need to do.
HTML Example:
<div id="records">
</div>
<select id="ddlRecordType">
<option value="1">Type 1</option>
<option value="2">Type 2</option>
</select>
<input type="submit" value="Load Records" id="btn-submit" />
jQuery Code
$(document).ready(function(){
$('#btn-submit').click(function(){
var selectedRecVal=$('#ddlRecordType').val();
$('#records').load('/LoadRecords?Id='+selectedRecVal);
return false; // to prevent default form submit
});
});
Here ?Id= is the query string parameter passed to server to get
the selected item in dropdown.
Edit: The below answer was added, as the question content changed from initial post
$("#btnclick").click(function () {
$.ajax({
type: 'POST',
url: '#Url.Action("MDLNoDataList","Search")',
data: mdlno,
success: function (data) {
// $("#viewlist")[0].innerHtml = data;
//or
$("#viewlist").html(data);
}
});
return false; //prevent default action(submit) for a button
});
Make sure you cancel the default action of form submission by returning false from your click handler:
$("#btnclick").click(function () {
$.ajax({
type: 'POST',
url: '#Url.Action("MDLNoDataList", "Search")',
data: mdlno,
success: function (data) {
$("#viewlist").html(data);
}
});
return false; // <!-- This is the important part
});
And if you are using the WebForms view engine and not Razor make sure you use the correct syntax to specify the url:
$("#btnclick").click(function () {
$.ajax({
type: 'POST',
url: '<%= Url.Action("MDLNoDataList", "Search") %>',
data: mdlno,
success: function (data) {
$("#viewlist").html(data);
}
});
return false; // <!-- This is the important part
});
If you do not return false, the form is simply submitted to the server when you click on the submit button, the browser redirects away from the page and obviously your AJAX call never has time to execute.
You will also notice some improvements I made to your original code:
Using the Url.Action helper when pointing to a server side controller action in order to take into account routes defined in your application.
Using jQuery's .html() method instead of innerHTML to set the contents of a given element.
You need AJAX for this purpose.
$.get(url, data, function(data) { $(element).append(data) });
and Partial View that is vague.
element {
overflow:hidden;
}

jQuery Ajax Form Submit Fails

I am developing an MVC4 mobile app that uses several forms which are loaded into a section on the layout via ajax. I've got jQuery mobile set with Ajax turned off so I can manage the Ajax myself. Most of the forms work fine, the load and submit via ajax as they should. However, so far there is one form that refuses to fire the form submit and submit the form via ajax like the rest. First, the form is loaded when a user clicks to add a contact and this works fine:
// Handle the add contact button click
$('#btnAddNewContact').on('click', function (e) {
e.preventDefault();
// Make sure a location was selected first.
var locationID = $('#cboLocation').val();
if (locationID.length === 0) {
//$('#alertTitle').text('REQUIRED');
$('#alertMsg').html("<p>A Contact must be associated with a Location.</p><p>Please select or add a Location first.</p>");
$('#alertDialogDisplay').click();
} else {
SaveOpportunityFormState();
$.cookie('cmdLocationId', locationID, { path: '/' });
$.mobile.loading('show');
$.ajax({
url: '/Contact/Add',
type: 'GET',
cache: false,
success: function (response, status, XMLHttpRequest) {
$('section.ui-content-Override').html(response);
// Refresh the page to apply jQuery Mobile styles.
$('section.ui-content-Override').trigger('create');
// Force client side validation.
$.validator.unobtrusive.parse($('section.ui-content-Override'));
},
complete: function () {
$.cookie('cmdPreviousPage', '/Opportunity/Add', { path: '/' });
AddContactLoad();
ShowSearchHeader(false);
$.mobile.loading('hide');
},
error: function (xhr, status, error) {
// TODO - See if we need to handle errors here.
}
});
}
return false;
});
Notice that after successfully loading the form the AddContactLoad() function is fired. This works fine and here is that code:
function AddContactLoad() {
$('#contactVM_Phone').mask('(999) 999-9999? x99999');
$('#frmAddContact').on('submit', function (e) {
e.preventDefault();
if ($(this).valid()) {
$.mobile.loading('show');
$.ajax({
url: '/Contact/Add',
type: 'POST',
cache: false,
data: $(this).serialize(),
success: function (response, status, XMLHttpRequest) {
if (!response) { // Success
ReturnToAddOpportunity();
} else { // Invalid Form
$('section.ui-content-Override').html(response);
// Force jQuery Mobile to apply styles.
$('section.ui-content-Override').trigger('create');
// Force client side validation.
$.validator.unobtrusive.parse($('section.ui-content-Override'));
AddContactLoad();
$.mobile.loading('hide');
}
},
complete: function () {
},
error: function (xhr, status, error) {
// TODO - See if we need to handle errors here.
}
});
}
return false;
});
$('#btnCancel').on('click', function (e) {
e.preventDefault();
// See where add contact was called from.
var previousPage = $.cookie('cmdPreviousPage');
if (previousPage.indexOf("Detail") >= 0) {
ReturnToOpportunityDetails();
} else {
ReturnToAddOpportunity();
}
return false;
});
}
If I click the cancel button, that code is fired so I know this is working too. Here is my form code:
#using (Html.BeginForm("Add", "Contact", FormMethod.Post, new { #id = "frmAddContact" }))
{
#Html.ValidationSummary(true)
#Html.AntiForgeryToken()
-- Form Fields Here --
<div class="savecancel" >
<input type="submit" value="Save" data-mini="true", data-theme="b", data-inline="true" />
Cancel
</div>
}
As you can see the form is named frmAddContact and that is what the AddContactLoad() function is attaching the submit event to. To save my sole I cannot figure out why the form does not submit via the ajax post like every other form in the app. Am I missing some kind of initialization, I just don't know. If anyone can please help I'd really appreciate it!!
As it turns out, I had created a custom unobtrusive Ajax validator for a phone number then copied and pasted it to do the same with a zip code. Unfortunately in the process I forgot to rename a variable and thus an error was occurring in the validation script which caused the problem. In the mean time, if you're reading this, you might take a note of the code here and how to inject HTML into a page via Ajax and jQuery mobile. I've never found this in a book or on the web and it contains some very useful methodology and syntax. On the form submit the reason I'm checking for the empty response is I just return null from the controller to validate the form was valid and the save worked in which case I send them to a different HTML injection i.e. that page they originally came from. If null is not returned I inject that page with the HTML containing the original form and error markup so the user can make corrections then resubmit. I'm also calling a form load method that attaches handlers to the HTML once it's injected into the main page. Hope this helps somebody!

Html imput type="image" onclick event

Friends I have a problem
We need to make a user control that has the ability to delete itself, I made it but we did not clear the mechanism for removal, it should be tied to a nice picture. Code that is attached to the frame is given below, but not
$('#delete').bind('click', function () {
alert('test');
var urlA = '<%=Url.Action("DeleteMessage","Ticket")%>';
$.ajax({
url: urlA,
type: 'POST',
data: { idMessage:$(this).parents("div:first").find("input[name='MessageID']").val(),idticket:$('#TicketID').val() },
success: function (data) {
alert(data);
}
});
});
But when I write this, but to throw me to the homepage what's wrong
$('#delete').live('click', function ()
$("#delete").live("click", function(){
//code
$(this).remove(); //delete itself
});
If your image is declared as input type="image" then it will behave like a submit button and submit your page. You should prevent the default behavior of submitting the page by adding an event.preventDefault() or equivalent to your javascript function.

Prevent default on a click within a JQuery tabs in Google Chrome

I would like to prevent the default behaviour of a click on a link. I tried the return false; also javascript:void(0); in the href attribute but it doesn’t seem to work. It works fine in Firefox, but not in Chrome and IE.
I have a single tab that loads via AJAX the content which is a simple link.
<script type="text/javascript">
$(function() {
$("#tabs").tabs({
ajaxOptions: {
error: function(xhr, status, index, anchor) {
$(anchor.hash).html("Couldn't load this tab. We'll try to fix this as soon as possible. If this wouldn't be a demo.");
},
success: function() {
alert('hello');
$('#lk').click(function(event) {
alert('Click Me');
event.preventDefault();
return false;
});
}
},
load: function(event, ui) {
$('a', ui.panel).click(function(event) {
$(ui.panel).load(this.href);
event.preventDefault();
return false;
});
}
});
});
</script>
<body>
<div id="tabs">
<ul>
<li>Link</li>
</ul>
</div>
</body>
The content of linkChild.htm is
Click Me
So basically when the tab content is loaded with success, a click event is attached to the link “lk”. When I click on the link, the alert is displayed but then link disappears. I check the HTML and the element is actually removed from the DOM.
$('#selector').click(function(event) {
event.preventDefault();
});
The event object is passed to your click handler by default - you have to have something there to receive it. Once you have the event, you can use jQuery's .preventDefault() method to cancel the link's behavior.
Edit:
Here's the fragment of your code, corrected:
$('a', ui.panel).click(function(event) {
$(ui.panel).load(this.href);
event.preventDefault();
return false;
});
Notice the addition of the word 'event' when creating the anon function (or you could use just e, or anything else - the name is unimportant, the fact there's a var there is.

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