src/CoreBundle/EventListener/DcGeneral/MetaModel/PasteButtonListener.php
public function handleRoot(GetPasteRootButtonEvent $event)
    {
        $this->environment  = $event->getEnvironment();
        $this->provider     = $this->environment->getDataProvider();
        $this->providerName = $this->provider->getEmptyModel()->getProviderName();
        $clipboard          = $this->environment->getClipboard();
        $this->currentModel = null;
        $this->disablePI    = false;

        // Only run for a MetaModels.
        if ((substr($this->providerName, 0, 3) !== 'mm_') || $event->isPasteDisabled()) {
            return;
        }

        $this->checkForAction($clipboard, 'copy');
        $this->checkForAction($clipboard, 'create');
        $this->checkForAction($clipboard, 'cut');

        $event->setPasteDisabled($this->disablePI);
    }
public function handleRoot(GetPasteRootButtonEvent $event)
    {
        $this->environment  = $event->getEnvironment();
        $this->provider     = $this->environment->getDataProvider();
        $this->providerName = $this->provider->getEmptyModel()->getProviderName();
        $clipboard          = $this->environment->getClipboard();
        $this->currentModel = null;
        $this->disablePI    = false;

        // Only run for a MetaModels.
        if ((substr($this->providerName, 0, 3) !== 'mm_') || $event->isPasteDisabled()) {
            return;
        }

        $this->checkForAction($clipboard, 'copy');
        $this->checkForAction($clipboard, 'create');
        $this->checkForAction($clipboard, 'cut');

        $event->setPasteDisabled($this->disablePI);
    }
Handle the paste into and after buttons.

@param GetPasteRootButtonEvent $event The event.

@return void

@throws \RuntimeException When more than one model is contained within the clipboard.