Access Multiple Elements Data Attributes with JQuery On Change Event
Access Multiple Elements Data Attributes with JQuery On Change Event
I'm attempting to create a way to re-arrange menu items. I am using this Github library: https://github.com/ShinDarth/Nestable
I added two data attributes data-parent
and data-sub
to my <li>
.
data-parent
data-sub
<li>
I am attempting to update those attributes when an item is re-arranged.
So if an item is placed as a child, its data attribute, data-parent
, would be the data-id
of its parent.
Expanding on that, the parent's own data-sub
would become true or 1
, meaning it has sub-items.
data-parent
data-id
data-sub
1
Un-parenting a child, would set both the parent and the child's data-parent
and data-sub
to 0. Since neither are have sub-objects or parents.
data-parent
data-sub
Example:
Take these two items. Notice that data-parent
and data-sub
are both set to zero.
data-parent
data-sub
<div class="dd nestable">
<ol class="dd-list">
<li class="dd-item" data-id="1" data-name="MenuName1" data-sub="0" data-parent="0" data-new="0" data-deleted="0">
<div class="dd-handle">MenuName1</div>
</li>
<li class="dd-item" data-id="2" data-name="MenuName2" data-sub="0" data-parent="0" data-new="0" data-deleted="0">
<div class="dd-handle">MenuName</div>
</li>
</ol>
</div>
Using the Nestable library to move MenuName2
as a child of MenuName1
would result in the below.
MenuName2
MenuName1
<div class="dd nestable">
<ol class="dd-list">
<li class="dd-item" data-id="1" data-name="MenuName1" data-sub="1" data-parent="0" data-new="0" data-deleted="0">
<div class="dd-handle">MenuName1</div>
<ol class="dd-list">
<li class="dd-item" data-id="2" data-name="MenuName2" data-sub="0" data-parent="1" data-new="0" data-deleted="0">
<div class="dd-handle">MenuName</div>
</li>
</ol>
</li>
</ol>
</div>
In the above code,
MenuName1 - data-sub="1"
(Since it has a child)
data-sub="1"
MenuName2 - data-parent="1"
(The 1, is the data-id
of the parent, in this case 1)
data-parent="1"
data-id
I thought the onChange()
event would be a good place to update. But I can't seem to access any of the data elements.
onChange()
$('.dd').on('change', function (e)
/* on change event */
var target = $(e.target);
console.log("reordered " + JSON.stringify(e));
);
How can I access the data attributes of the parent and the child to manipulate them?
change
On the the github website the menu is wrapped in a div with the class "dd nestable". In your example the menu is not enclosed in a div with the calss "dd". Is there the root of your problem?
– C. van Dorsten
Sep 1 at 19:11
It is wrapped in the dd div. I left it out for brevity.
– user-44651
Sep 1 at 19:12
@YousafHassan I updated the question with the dd
– user-44651
Sep 1 at 19:47
1 Answer
1
According to the github website example you should use
$('.dd.nestable').on('change', .... )
Might this be your solution?
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Where is the class 'dd' in your html code? Anyways
change
event works for input fields not for decorator or read only elements.– Yousaf Hassan
Sep 1 at 18:44