Subpanel not getting open in suagarcrm 7.8 version - crm

Question

I updated Sugar from version 7.6 to 7.8 i add some custom code in subpanel-list.js and it was working perfect in 7.6 version . But now in 7.8 version due to this code subpanel is not working . Can any one tell me the solutions for that.
I tried to ask this question to sugar support team but they told me that it is related to custom code , so need to ask to sugar developers.
I am providing my code which was working on 7.6 but due to this code now in 7.8 subpanel is not working.
({extendsFrom: 'SubpanelListView',
//contextEvents: {"list:inviteportal:fire": "renderOnInvitePortal"},
initialize: function(options) {
// this.dataViewName = options.name || 'subpanel-list';
this._super("initialize", [options]);
this.context.on('list:inviteportal:fire',this.renderOnInvitePortal, this);
},
renderOnInvitePortal: function(model){
app.api.call('read',app.api.buildURL(model.get('_module'),'read',{id:model.get('id')}),null,
{
success: function(data) {
bean = app.data.createBean(data._module,data);
app.drawer.open({
layout : 'inviteportal',
context : {
create : true,
model : bean,
module : bean.get('_module')
}
});
},
error: function() {
return;
}
}
);
},
})

Answer 1

I found the problem , In subpanel-list.php in 7.7 version
'template' => 'recordlist',
Now in 7.8 version it is.
'template' => 'flex-list',