I found flask-jquery-ajax example where the user selects an item from the vehicle "Make" drop down menu, the vehicle "Model" drop down menu is populated by making an AJAX request for a list of models for the make selected.
I tried to replace the drop-down menus by bootstrap-select and as soon as I include class="selectpicker form-control" in the second drop-down menu it does not get any more populated after the first drop-down has been chosen.
This is the HTML template:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Flask Jquery AJAX Drop Down Menu Example</title>
<link rel="stylesheet" type="text/css" href="//netdna.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css" >
<link rel="stylesheet" type="text/css" href=//cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.6.2/css/bootstrap-select.min.css>
<link rel="stylesheet" href="{{ url_for('static', filename='web.css') }}">
<!-- Custom styles for this template -->
<link href="http://getbootstrap.com/examples/non-responsive/non-responsive.css" rel="stylesheet">
</head>
<body>
<h1>Select Vehicle</h1>
<form class="form-horizontal" action="/" method="POST" >
<div class="input-group">
<span class="input-group-addon">Make:</span>
{{ form.make(id="make_select", class="selectpicker form-control") }}
</div>
<div class="input-group">
<span class="input-group-addon">Model:</span>
{{ form.model(id="model_select", class="selectpicker form-control") }}
</div>
<button type="submit">Submit</button>
</form>
{% if chosen_make %}
<h2>You selected:</h2>
<ul>
<li>Make ID: {{ chosen_make }}</li>
<li>Model ID: {{ chosen_model }}</li>
</ul>
{% endif %}
<script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jquery/1.10.1/jquery.min.js"></script>
<script type="text/javascript" src="//netdna.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.6.2/js/bootstrap-select.min.js"></script>
<script>
$('.selectpicker').selectpicker();
</script>
<script src="/assets/vehicle.js"></script>
</body>
</html>
This is the JavaScript code responsible for populating the drop-down menus:
$("#make_select").change(function() {
var make_id = $(this).find(":selected").val();
var request = $.ajax({
type: 'GET',
url: '/models/' + make_id + '/',
});
request.done(function(data){
var option_list = [["", "--- Select One ---"]].concat(data);
$("#model_select").empty();
for (var i = 0; i < option_list.length; i++) {
$("#model_select").append(
$("<option></option>").attr(
"value", option_list[i][0]).text(option_list[i][1])
);
}
});
});
Why does class="selectpicker form-control" from bootstrap-select cause that the second drop-down menu get not anymore populated?
By default, Ajax requests are sent using the GET HTTP method. If the POST method is required, the method can be specified by setting a value for the type option.
Bootstrap Select is a form control that shows a collapsable list of different values that can be selected. This can be used for displaying forms or menus to the user.
jQuery provides several methods for AJAX functionality. With the jQuery AJAX methods, you can request text, HTML, XML, or JSON from a remote server using both HTTP Get and HTTP Post - And you can load the external data directly into the selected HTML elements of your web page!
The ajax() method is used to perform an AJAX (asynchronous HTTP) request. All jQuery AJAX methods use the ajax() method. This method is mostly used for requests where the other methods cannot be used.
After AJAX is done, you need to reload the plugin:
$('#model_select').selectpicker('refresh');
or
success: function(data)
{
$("#model_select").html(data).selectpicker('refresh');
}
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