Re: [pve-devel] [PATCH v2 stable-7+master manager 1/2] ui: vm selector: handle empty string gracefully

[Dominik Csapak <d.csapak@proxmox.com>]

On 7/7/23 10:02, Fiona Ebner wrote:
> which is passed by the backup job window when using selection mode
> 'all', would be converted to [""] and wrongly add an entry with VMID
> 0 because the item "" could not be found in the store.
> 
> Reported in the community forum:
> https://forum.proxmox.com/threads/130164/
> 
> Fixes: 7a5ca76a ("fix #4239: ui: show selected but non-existing vmids in backup edit")
> Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
> ---
> 
> Applying either of the patches to stable-7 is enough to fix the issue.
> 
> No changes in v2.
> 
>   www/manager6/form/VMSelector.js | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/www/manager6/form/VMSelector.js b/www/manager6/form/VMSelector.js
> index 4c0bba13..bf2c8df7 100644
> --- a/www/manager6/form/VMSelector.js
> +++ b/www/manager6/form/VMSelector.js
> @@ -162,7 +162,7 @@ Ext.define('PVE.form.VMSelector', {
>       setValue: function(value) {
>   	let me = this;
>   	if (!Ext.isArray(value)) {
> -	    value = value.split(',');
> +	    value = value === '' ? [] : value.split(',');
>   	}
>   
>   	let store = me.getStore();

sorry for the late answer

the patch LGTM, but i would even go a step further and do a
----
value ??= [];
----

before the isArray check (that way we'd also handle undefined/null values)
(can ofc be done as a follow-up/later)


an alternative would be to filter out all empty values e.g. like this:

---
value.split(',').filter(v => v !== '')
---

this would then also handle values like: '100,,200'
idk if that's even possible to get here