def render_plugin(self, context=None, placeholder=None, admin=False, processors=None):
        instance, plugin = self.get_plugin_instance()
        request = None
        current_app = None
        if context:
            request = context.get('request', None)
            if request:
                current_app = getattr(request, 'current_app', None)
            if not current_app:
                current_app = context.current_app if context else None

        if instance and not (admin or not plugin.admin_preview):
            if not placeholder or not isinstance(placeholder, Placeholder):
                placeholder = instance.placeholder
            placeholder_slot = placeholder.slot
            context = PluginContext(context, instance, placeholder, current_app=current_app)
            context = plugin.render(context, instance, placeholder_slot)
            page = None
            if request:
                page = request.current_page
            plugin.cms_plugin_instance = instance
            context['allowed_child_classes'] = plugin.get_child_classes(placeholder_slot, page)
            context['allowed_parent_classes'] = plugin.get_parent_classes(placeholder_slot, page)
            if plugin.render_plugin:
                template = plugin._get_render_template(context, instance, placeholder)
                if not template:
                    raise ValidationError("plugin has no render_template: %s" % plugin.__class__)
            else:
                template = None
            return render_plugin(context, instance, placeholder, template, processors, current_app)
        else:
            from cms.middleware.toolbar import toolbar_plugin_processor

            if processors and toolbar_plugin_processor in processors:
                if not placeholder:
                    placeholder = self.placeholder
                context = PluginContext(context, self, placeholder, current_app=current_app)
                template = None
                return render_plugin(context, self, placeholder, template, processors, current_app)
        return ""
dataset/ETHPy150Open divio/django-cms/cms/models/pluginmodel.py/CMSPlugin.render_plugin/operator `and` -> `or`