I am impelemnting a drag'n'drop where you can drag users to a role. I know how I get the user ID and the target role ID but I do not know how to get the role ID where the user is dragged FROM!
<div id="role_1" class="role">
<h5>Administrator</h5>
<ul class="users">
<li id="user_1">Foo</li>
<li id="user_2">Bar</li>
</ul>
</div>
<div id="role_2" class="role">
<h5>Member</h5>
<ul class="users">
<li id="user_1337">Baz</li>
</ul>
</div>
<script type="text/javascript">
$(function() {
// Get roles and users lists
var $templates = $(".role"),
$users = $(".users");
// let the user items be draggable
$("li", $users).draggable({
revert: "invalid", // when not dropped, the item will revert back to its initial position
containment: "document",
helper: "clone",
cursor: "move"
});
// let the roles be droppable, accepting the user items
$templates.droppable({
accept: ".users > li",
activeClass: "ui-state-highlight",
drop: function(event, ui) {
var $uid = ui.draggable.attr("id"),
$targetRid = $(this).attr("id"),
$sourceRid = ???;
// snip
}
});
});
</script>
Thanks for your help in advance.
Hook the start
event, and get the closest .role
:
$("li", $users).draggable({
revert: "invalid", // when not dropped, the item will revert back to its initial position
containment: "document",
helper: "clone",
cursor: "move",
start: function() {
var role = $(this).closest(".role").attr("id");
// Here, role is either the id or undefined if no role could be found
}
});
If you need that information when it's dropped, you could store it on the element using data
in the start
event and then retrieve it when dropped.