pluginmodel.py 文件源码

def fix_tree(cls, destructive=False):
        """
        Fixes the plugin tree by first calling treebeard fix_tree and the
        recalculating the correct position property for each plugin.
        """
        from cms.utils.plugins import reorder_plugins

        super(CMSPlugin, cls).fix_tree(destructive)
        for placeholder in Placeholder.objects.all():
            for language, __ in settings.LANGUAGES:
                order = CMSPlugin.objects.filter(
                        placeholder_id=placeholder.pk, language=language,
                        parent_id__isnull=True
                    ).order_by('position').values_list('pk', flat=True)
                reorder_plugins(placeholder, None, language, order)

                for plugin in CMSPlugin.objects.filter(
                        placeholder_id=placeholder.pk,
                        language=language).order_by('depth', 'path'):
                    order = CMSPlugin.objects.filter(
                            parent_id=plugin.pk
                        ).order_by('position').values_list('pk', flat=True)
                    reorder_plugins(placeholder, plugin.pk, language, order)