fix #2864: add owner option to sync

instead of hard-coding 'backup@pam'. this allows a bit more flexibility
(e.g., syncing to a datastore that can directly be used as restore
source) without overly complicating things.

Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>

www/config/SyncView.js

@@ -1,7 +1,7 @@
 Ext.define('pbs-sync-jobs-status', {
     extend: 'Ext.data.Model',
     fields: [
-	'id', 'remote', 'remote-store', 'store', 'schedule',
+	'id', 'owner', 'remote', 'remote-store', 'store', 'schedule',
 	'next-run', 'last-run-upid', 'last-run-state', 'last-run-endtime',
 	{
 	    name: 'duration',
@@ -151,6 +151,11 @@ Ext.define('PBS.config.SyncJobView', {
 	    return Proxmox.Utils.render_timestamp(value);
 	},
 
+	render_optional_owner: function(value, metadata, record) {
+	    if (!value) return '-';
+	    return Ext.String.htmlEncode(value, metadata, record);
+	},
+
 	startStore: function() { this.getView().getStore().rstore.startUpdate(); },
 	stopStore: function() { this.getView().getStore().rstore.stopUpdate(); },
 
@@ -250,6 +255,13 @@ Ext.define('PBS.config.SyncJobView', {
 	    width: 120,
 	    sortable: true,
 	},
+	{
+	    header: gettext('Owner'),
+	    dataIndex: 'owner',
+	    renderer: 'render_optional_owner',
+	    flex: 2,
+	    sortable: true,
+	},
 	{
 	    header: gettext('Schedule'),
 	    dataIndex: 'schedule',

www/window/SyncJobEdit.js

@@ -62,6 +62,26 @@ Ext.define('PBS.window.SyncJobEdit', {
 	],
 
 	column2: [
+	    {
+		fieldLabel: gettext('Owner'),
+		xtype: 'pbsUserSelector',
+		name: 'owner',
+		allowBlank: true,
+		emptyText: 'backup@pam',
+		getSubmitData: function() {
+		    let me = this;
+		    let name = me.getName();
+		    let val = me.getSubmitValue();
+
+		    let data = {};
+		    if (val === null || val === "") {
+			data.delete = name;
+		    } else {
+			data[name] = val;
+		    }
+		    return data;
+		},
+	    },
 	    {
 		fieldLabel: gettext('Remove vanished'),
 		xtype: 'proxmoxcheckbox',