I have a view called contact.html.twig. It has a form with some textfields. I want to use javascript to validate that none of the fields are empty, as well as some other rules. But I do not know where to put the .js with the definitions. I do not know either how to call the .js script using the Twig notation.
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2 Answers
This is a generic answer for how to handle javascript... not specifically the validation part. The approach I use is to store individual functionality in separate JS files as plugins in the bundles Resources/public/js directory like so:
(function ($) {
$.fn.userAdmin = function (options) {
var $this = $(this);
$this.on('click', '.delete-item', function (event) {
event.preventDefault();
event.stopPropagation();
// handle deleting an item...
});
}
});
I then include these files in my base template using assetic:
{% javascripts
'@SOTBCoreBundle/Resources/public/js/user.js'
%}
<script src="{{ asset_url }}"></script>
{% endjavascripts %}
In my base template I have a block at the end of <body> for a $(document).ready();
<script>
$(document).ready(function () {
{% block documentReady %}{% endblock documentReady %}
});
</script>
</body>
Then in my page that has the "user admin" functionality I can call the userAdmin function like so:
{% block documentReady %}
{{ parent() }}
$('#user-form').userAdmin();
{% endblock documentReady %}
Comments
Isn't basic HTML5 functionality enough for your client side validation? It is provided by the Form component. You could also check:
