[richfaces-issues] [JBoss JIRA] Commented: (RF-6839) sorting capabilities for ListShuttle component.

[C. Fed (JIRA)]

    [ https://jira.jboss.org/jira/browse/RF-6839?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12521461#action_12521461 ] 

C. Fed commented on RF-6839:
----------------------------

I needed to have the lists maintain their order on add/remove, so I ended up modifying ListShuttle.js in richfaces-ui-3.2.2.SR1jar.  This will make every listShuttle sort this way, which is fine in my case.  Ideally a maintainOrder="true" (or split into maintainSourceOrder and maintainTargetOrder) would be a nice attribute on listShuttle, but I didn't have time to put together an example.

Using the regex in there worked since each row had the initial order index as part of the ID, which I was able to strip out.  I'm not sure if that's a good way to get the index though, since that could change in a future release.


I added the following code to the bottom of the moveItem function:

		var regex = /^\w*(\d+):.*$/;
		for (var x = 0; x < targetComponent.shuttleTbody.rows.length - 1; x++) {
			for (var y = x + 1; y < targetComponent.shuttleTbody.rows.length; y++) {
				var itemX = targetComponent.getSelectItemByNode(targetComponent.shuttleTbody.rows[x]);
				var itemY = targetComponent.getSelectItemByNode(targetComponent.shuttleTbody.rows[y]);
				var orderNumX = itemX.input.value.replace(regex, '$1');
				var orderNumY = itemY.input.value.replace(regex, '$1');
				if (orderNumX > orderNumY) {
					var parentItemNode = itemY._node.parentNode;
					var tmpNode = itemX._node.nextSibling;
					if (itemY._node != tmpNode) {
						// Nodes are more than a position apart.  Move each to the other's position
						parentItemNode.insertBefore(itemX._node, itemY._node);
						parentItemNode.insertBefore(itemY._node, tmpNode);
					} else {
						// nodes are next to each other.  just move 2nd in front of 1st
						parentItemNode.insertBefore(itemY._node, itemX._node);
					}
				}
			}
		}


> sorting capabilities for ListShuttle component.
> -----------------------------------------------
>
>                 Key: RF-6839
>                 URL: https://jira.jboss.org/jira/browse/RF-6839
>             Project: RichFaces
>          Issue Type: Feature Request
>      Security Level: Public(Everyone can see) 
>    Affects Versions: 3.3.1
>            Reporter: Ilya Shaikovsky
>            Assignee: Nick Belaevski
>             Fix For: Future
>
>
> client side capabilities while moving items should be done with the API we will provide. But community asked about server side properties to make lists sorted.

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