Some Views in custom component will not allow deletes

[tomfuller]

When I try to "Empty Trash" from some views I get "Warning Delete not permitted"

I am a super user and permissions granted for core.delete in the access.xml file for the component.

Most views will allow, just some - randomly.

What file in the CMS is being called on for this?

if ($this->state->get('filter.published') == -2 && $this->canDo->get('core.delete'))
        {
            JToolBarHelper::deleteList('', 'mediafiles.delete', 'JTOOLBAR_EMPTY_TRASH');
        }

mediafiles is the list view.

I cannot see any differences in the models, controllers, or views - some work, some do not.

Any ideas would be appreciated!

[Viper]

"Most views will allow, just some - randomly." - most likely it never worked as it should.
'mediafiles.delete' I think this call 'controller.task'.

[ModaCalcio.com - e-reall ebay]

Check also linux files permissions , they should be editable by www-data

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[tomfuller]

I fixed this by doing two things:

1. Make sure that the assets match the record. In libraries/joomla/table/table.php the delete function checks for asset match.

2. Make sure that the canDelete() function the item model is correct:

/**
     * Method to test whether a record can be deleted.
     *
     * @param   object $record  A record object.
     *
     * @return  boolean  True if allowed to delete the record. Defaults to the permission for the component.
     *
     * @since    1.6
     */
    protected function canDelete($record)
    {
        $user = JFactory::getUser();

        return $user->authorise('core.delete', 'componentname.itemview.' . (int) $record->id);
    }

These (component name and itemview) are set in the access.xml file in the root of the component's admin.