Develop Reference

jquery seems not to work inside bootstrap 4 popover

I want to send data via jquery (jquery-3.2.1.min.js) and ajax from inside of a bootstrap popover.
The popover works fine, but I cannot get the submit to work.
I initialized the popover with
$(document).ready(function() {
$(function(){
$("[data-toggle=popover]").popover({
html : true,
content: function() {
var content = $(this).attr("data-popover-content");
return $(content).children(".popover-body").html();
},
title: function() {
var title = $(this).attr("data-popover-content");
return $(title).children(".popover-heading").html();
}
});
});
});
This is the html trigger:
<span tabindex="0" role="button" data-toggle="popover" data-placement="right" data-popover-content="#comment230" data-original-title="" title="">
<img src="/ds/img/comment.svg" alt="comment" height="16px">
</span>
And this is the html inside the popover:
<div id="comment225" style="display:none;">
<div class="popover-heading">Comments</div>
<div class="popover-body">
<div class="commentbody">
<div>
<fieldset>
<div class="input text">
<label for="comment">Comment</label>
<input name="comment" id="comment" type="text" />
</div>
</fieldset>
<button class="submittest" id="acomment225button">Test</button>
</div>
</div>
</div>
</div>
For testing reasons I did this:
$(".submittest").click(function(e) {
alert('test');
e.preventDefault();
});
The alert does not work from buttons inside the popover, but from buttons placed on the rest of the page.
How can I get this to work?

Those DOM elements are not present at the time you are subscribing to the event.
You need to hook up to events in this fashion:
$(document).on("click", ".submittest", function(e){
alert("test");
});

Converting Bootstrap 3 remote modal to Bootstrap 4 modal with parameters

So in the near future my shop is going to upgrade to Bootstrap 4 but we cannot do this until we solve the issue with using remote modals. Here is an example of how we load our modals. The reason we use remote modals is because the modal-body is dynamic and may use different file based on the url. I have heard that using jQuery("#newsModal").on("load",..) is an alternative but how could I do this? I found this but I am not sure how my anchor would look and how to build the url to load the remote data.
Global PHP include file:
<div id="NewsModal" class="modal fade" tabindex="-1" role="dialog" data-
ajaxload="true" aria-labelledby="newsLabel" aria-hidden="true">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button>
<h3 class="newsLabel"></h3>
</div>
<div class="noscroll-modal-body">
<div class="loading">
<span class="caption">Loading...</span>
<img src="/images/loading.gif" alt="loading">
</div>
</div>
<div class="modal-footer caption">
<button class="btn btn-right default modal-close" data-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
modal_news.php file:
<form id="newsForm">
<div id="hth_err_msg" class="alert alert-danger display-hide col-lg-12 col-md-12 col-sm-12 col-xs-12">
You have some errors. Please check below.
</div>
<div id="hth_ok_msg" class="alert alert-success display-hide col-lg-12 col-md-12 col-sm-12 col-xs-12">
✔ Ready
</div>
<!-- details //-->
</form>
Here is how we trigger the modals :
<a href="#newsModal" id="modal_sbmt" data-toggle="modal" data-target="#newsModal"
onclick="remote='modal_news.php?USER=yardpenalty&PKEY=54&FUNCTION=*GENERAL'; remote_target='#NewsModal .noscroll-modal-body'">
<span class="label label-icon label-info">
<i class="fa fa-bullhorn"></i>
</span>
Promotional Ordering
</a>
I think I need to do something like this when building anchor dynamically:
a) Replace paramters with data-attrs
b) Use the event invoker to get the data-attrs using event.target.id

Thanks to Tieson T. and this post I was able to effectively pass parameters to the remote modal using this technique except if you have multiple modals
I have also included some helpful techniques inside this example as to how you may pass parameters to the remote modal.
bootstrap_modal4.php:
<div class="portlet-body">
Add Attendee <i class="fa fa-plus"></i>
</div>
<!-- BEGIN Food Show Attendee Add/Edit/Delete Modal -->
<div id="attendee" class="modal fade" tabindex="-1" role="dialog" data-ajaxload="true" aria-labelledby="atnLabel" aria-hidden="true">
<form id="signupForm" method="post">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<label id="atnLabel" class="h3"></label><br>
<label id="evtLabel" class="h6"></label>
</div>
<div class="modal-body">
<div class="loading"><span class="caption">Loading...</span><img src="/images/loading.gif" alt="loading"></div>
</div>
<div class="modal-footer">
<span class="caption">
<button type="button" id="add_btn" class="btn btn-success add-attendee hidden">Add Attendee <i class="fa fa-plus"></i></button>
<button type="button" id="edit_btn" class="btn btn-info edit-attendee hidden">Update Attendee <i class="fa fa-save"></i></button>
<button type="button" id="del_btn" class="btn btn-danger edit-attendee hidden">Delete Attendee <i class="fa fa-minus"></i></button>
<button class="btn default modal-close" data-dismiss="modal" aria-hidden="true">Cancel</button>
</span>
</div>
</div>
</div>
</form>
</div>
<script>
jQuery(document).ready(function() {
EventHandlers();
});
function EventHandlers(){
$('#attendee').on('show.bs.modal', function (e) {
e.stopImmediatePropagation();
if($(this).attr('id') === "attendee"){
// Determines modal's data display based on its data-attr
var $invoker = $(e.relatedTarget);
var fscode = $invoker.attr('data-fscode');
console.log(fscode);
// Add Attendee
if($invoker.attr('data-atnid') === "add"){
$("#atnLabel").text("Add New Attendee");
$(".add-attendee").removeClass("hidden");
}
else{ //edit/delete attendee
$("#atnLabel").text("Attendee Maintenance");
$(".edit-attendee").removeClass("hidden");
}
//insert hidden inputs
//add input values for post
var hiddenInput = '<INPUT TYPE=HIDDEN NAME=FSCODE VALUE="' + fscode + '"/>';
$("#signupForm").append(hiddenInput);
}
});
$('#attendee').on('hidden.bs.modal', function (e) {
$(".edit-attendee").addClass("hidden");
$(".add-attendee").addClass("hidden");
$("#signupForm input[type='hidden']").remove();
});
// BOOTSTRAP 4 REMOTE MODAL ALTERNATIVE FOR BOOTSTRAP 3v-
$('#add-attendee').on('click', function(e){
$($(this).data("target")+' .modal-body').load($(this).data("remote"));
$("#attendee").modal('show');
});
}
</script>
bootstrap_remote_modal4.php:
<form id="signupForm">
<div class="col-lg-12 col-md-12 col-sm-12 col-xs-12">
Hello World!
</div>
</form>
<script>
$(document).ready(function(){
console.log('<?php echo $_GET["USERNAME"]?>'); //passed through url
});
</script>
NOTE: I am having problems with event propagation during the show.bs.modal event which I have a global show.bs.modal that is propagating up to this event handler due to multiple modals so if you have multiple modals make sure to handle them correctly.
Here is a screen shot of the results which clearly show propagation is taking place but the parameter passing techniques are working.

You might find it easier to use something like Bootbox.js, which can be used to dynamically create Bootstrap modals.
Given what you've shown, it would work something like:
trigger modal
with
$(function(){
$('.show-modal').on('click', function(e){
e.preventDefault();
var url = $(this).attr('href');
$.get(url)
.done(function(response, status, jqxhr) {
bootbox.dialog({
title: 'Your Title Here',
message: response
});
});
});
});
This assumes response is an HTML fragment.
Bootbox hasn't officially been confirmed to work with Bootstrap 4, but I haven't run into any problems with it yet (modals seem to be one of the few components that don't have updated markup in BS4).
Disclaimer: I am currently a contributor to Bootbox (mainly updating the documentation and triaging issues).
If you must use only the Bootstrap modal, you're actually after load(). You would probably do something like:
$(function(){
$('.show-modal').on('click', function(e){
e.preventDefault();
var url = $(this).attr('href');
var dialog = $('#NewsModal').clone();
dialog.load(url, function(){
dialog.modal('show');
});
});
});

When you open the Popover [bootstrap] the screen loses focus and goes to top

I have a query where fill an html table with the records from the database. In one of the columns of each row, there are some options how to edit, delete, add photos and another option that opens the Popover.
This Popover is Bootstrap 3 and is happening every time I click these buttons popover the screen loses focus on where it is and goes to the top of the page, I do not want that to happen, how to proceed?
Follows the code:
<td class="col-small center">
<div class="action-buttons">
<a class="popover-dw" href="#" data-popover="true">
<i class="fa fa-cog bigger-130" data-toggle="tooltip"></i>
</a>
<div class="popover-content" style="display:none">
<form class="marcarComoVendido">
<div>
<p>
Anúncio: <%=rsAnuncios("id")%>
</p>
<p>
<input <%=checkVendido%> type="checkbox" id="marcarComoVendido<%=rsAnuncios("id")%>" onclick="alugadoVendido('src/rotinas/rotinas.asp?acao=Vendido&id=<%=rsAnuncios("id")%>&tipo=vendido&idInput=marcarComoVendido<%=rsAnuncios("id")%>&outroInput=marcarComoAlugado<%=rsAnuncios("id")%>', 'marcarComoVendido<%=rsAnuncios("id")%>', 'marcarComoAlugado<%=rsAnuncios("id")%>');" /> Marcar anúncio como VENDIDO
</p>
<p>
<input data-rel="tooltip" title="Republicar Anúncio" <%=checkAlugado%> type="checkbox" id="marcarComoAlugado<%=rsAnuncios("id")%>" onclick="alugadoVendido('src/rotinas/rotinas.asp?acao=Vendido&id=<%=rsAnuncios("id")%>&tipo=alugado&idInput=marcarComoAlugado<%=rsAnuncios("id")%>&outroInput=marcarComoVendido<%=rsAnuncios("id")%>', 'marcarComoAlugado<%=rsAnuncios("id")%>', 'marcarComoVendido<%=rsAnuncios("id")%>');" /> Marcar anúncio como ALUGADO
</p>
</div>
</form>
</div>
</div>
</td>
And here javascript:
$('body').popover({
selector: '[data-popover]',
title: '<b>Alugado ou Vendido</b> <button type="button" id="close" class="close" onclick="$("[data-original-title]").popover("hide");">×</button>',
placement : 'left',
trigger: 'click',
html: true,
delay: {show: 50, hide: 400},
content: function(ele) {
console.log(ele,this);
return $(this).next(".popover-content").html();
}
});
$('body').on('click', function(e) {
if (typeof $(e.target).data('original-title') == 'undefined' &&
!$(e.target).parents().is('.popover.in')) {
$('[data-original-title]').popover('hide');
}
});

I had to take off the tag href:
<a class="popover-dw" data-popover="true">
<i class="fa fa-cog bigger-130" data-toggle="tooltip"></i>
</a>

Modal Form Submission without refresh

I have a modal window that pops up when I want to add a new project to my dashboard. I have gotten it to work with jquery post however, I cannot prevent it from refreshing. What I want to do is after the project is added to the database, show a success message and close the modal window after few seconds and not refresh the page (parent page of modal).
Here is my modal
<div class="modal fade" id="add-project-dialog" tabindex="-1" role="dialog" aria-labelledby="basicModal" aria-hidden="true">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
<h4 class="modal-title" id="myModalLabel">Add a new Project</h4>
</div>
<div class="modal-body">
<h3>New Project:</h3>
<form class="form-horizontal" id="add-project-form" action="/projects/add" method="POST">
<fieldset>
<!-- Text input-->
<div class="form-group">
<label class="col-md-4 control-label" for="name">Project Name</label>
<div class="col-md-4">
<input id="name" name="name" type="text" placeholder="" class="form-control input-md">
</div>
</div>
<!-- Text input-->
<div class="form-group">
<label class="col-md-4 control-label" for="description">Project Description</label>
<div class="col-md-4">
<input id="description" name="description" type="text" placeholder="" class="form-control input-md">
</div>
</div>
<!-- Text input-->
<div class="form-group">
<label class="col-md-4 control-label" for="project_state">Project State</label>
<div class="col-md-4">
<input id="project_state" name="project_state" type="text" placeholder="" class="form-control input-md">
</div>
</div>
</fieldset>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
<button id="add-btn" class="btn" type="submit">Add</button>
</div>
</form>
</div>
</div>
Here is my project-dashboard.js
AddProject = function(){
$(document).ready(function() {
$("#submit").submit(function(event){
event.preventDefault();
$.ajax({
url: "/projects/add",
type:"POST",
data:
{
'name': $('#name').val(),
'description': $('#description').val(),
'project_state': $('#project_state').val()
}
});
});
});
}
My views.py
class AddProject(webapp2.RedirectHandler):
def get(self):
template_values = {
#'greetings': greetings,
#'url_linktext': url_linktext,
}
path = os.path.join(os.path.dirname(__file__), '../templates/project-add.html')
self.response.write(template.render(path, template_values))
def post(self):
project = Project()
project.name = self.request.get('name')
project.description = self.request.get('description')
project.project_state = self.request.get('project_state')
time.sleep(2)
project.put()
self.redirect('/projects')
I have tried removing the self.redirect('/projects') however that only takes me to a blank page that is /projects/add (that is the action in the form).

The issue is that you added .ready(foo) handler inside of the AddProject function. I suppose that document is loaded when AddProject is called.
Another issue is that in your HTML, the form has id add-project-form, so you should do $("#add-project-form") instead of $("#submit").
$(document).ready(function () {
$("#add-project-form").submit(function(event){
event.preventDefault();
$.ajax({
url: "/projects/add",
type:"POST",
data:
{
'name': $('#name').val(),
'description': $('#description').val(),
'project_state': $('#project_state').val()
}
});
});
});
});
Take ready handler outside of the AddProject function and it should work (the submit handler is added).

Edit: After some debugging, the answer was to use the right id and proper placing of the javascript code, as noted by the comments.
For starters, a refresh is easy to avoid, just make sure to prevent the default event from running; since you're using jQuery, I would recommend doing return false to end the function, since it both 'prevents default' and 'stops propagation'.
So the first thing you should do is check if your javascript code is actually running and not erring in the middle of execution. If everything is fine there, the worst case is that the project is not actually added (server side error) but the page should not refresh.
Your server side code has nothing to do with the refresh (if it's being properly hijacked), so the response doesn't really matter, I would actually return the id of the new project (so you could provide a link for the newly created item or something like that), but i digress...

Here is a snippet for not only closing modals without page refresh but when pressing enter it submits modal and closes without refresh
I have it set up on my site where I can have multiple modals and some modals process data on submit and some don't. What I do is create a unique ID for each modal that does processing. For example in my webpage:
HTML (modal footer):
<div class="modal-footer form-footer"><br>
<span class="caption">
<button id="PreLoadOrders" class="btn btn-md green btn-right" type="button" disabled>Add to Cart <i class="fa fa-shopping-cart"></i></button>
<button id="ClrHist" class="btn btn-md red btn-right" data-dismiss="modal" data-original-title="" title="Return to Scan Order Entry" type="cancel">Cancel <i class="fa fa-close"></i></a>
</span>
</div>
jQUERY:
$(document).ready(function(){
// Allow enter key to trigger preloadorders form
$(document).keypress(function(e) {
if(e.which == 13) {
e.preventDefault();
if($(".trigger").is(".ok")) //custom validation dont copy
$("#PreLoadOrders").trigger("click");
else
return;
}
});
});
As you can see this submit performs processing which is why I have this jQuery for this modal. Now let's say I have another modal within this webpage but no processing is performed and since one modal is open at a time I put another $(document).ready() in a global php/js script that all pages get and I give the modal's close button a class called: ".modal-close":
HTML:
<div class="modal-footer caption">
<button type="submit" class="modal-close btn default" data-dismiss="modal" aria-hidden="true">Close</button>
</div>
jQuery (include global.inc):
$(document).ready(function(){
// Allow enter key to trigger a particular class button
$(document).keypress(function(e) {
if(e.which == 13) {
if($(".modal").is(":visible")){
$(".modal:visible").find(".modal-close").trigger('click');
}
}
});
});
Now you should get no page refreshes on any of your modals if u follow these steps.

Dropdown in popover bootstrap

I am not able to figure out how to display dropdown in popover in bootstrap. All i can find tutorials are just displaying just text and buttons. I need to display dropdown and also have to bind data in it. To display buttons and for its events i have followed the below way.
var popOpts = {
placement: 'left',
title: '<span id="trashcan" class="glyphicon glyphicon-trash"></span>Confirm Delete',
html: 'true',
trigger: 'click',
content: '<p>This will be deleted.<br>Are you sure you wish to continue?</p><br><button id="delete" class="btn btn-danger popover-submit" type="button">Yes</button><button id="cancel" class="btn btn-default" type="button">No</button>',
}
$(".btnDelete").popover(popOpts);
I need to know how to display dropdown and to bind items in popover in bootstrap.

Try like this
You can display anything inside form,and bind the events
HTML
<div class="popover-markup"> Popover link
<div class="head hide">Lorem Ipsum</div>
<div class="content hide">
<div class="form-group">
<select><option>Test</option></select>
</div>
<button type="submit" class="btn btn-default btn-block">Submit</button>
</div>
<div class="footer hide">test</div>
</div>
Script
$('.popover-markup>.trigger').popover({
html: true,
title: function () {
return $(this).parent().find('.head').html();
},
content: function () {
return $(this).parent().find('.content').html();
}
});
DEMO