Laravel-Backpack / PageManager

     * @param int $id

     * @return \Illuminate\Http\RedirectResponse

     */

    public function update($slug, $id)

    {

        $model = $this->crud->model;

        $entry = $model::findBySlugOrFail($slug);

        $this->uniqueSetup($entry);

        return parent::updateCrud();

    }

    /**

     * Set the crud route.

     * @param $id

     * @return Response

     */

    public function uniqueRevisions($slug, $id)

    {

        $model = $this->crud->model;

        $entry = $model::findBySlugOrFail($slug);

        $this->uniqueSetup($entry);

        return parent::listRevisions($entry->id);

    }

    /**

     * Restore a specific revision for the specified resource.

     * @return JSON Response containing the new revision that was created from the update

     * @return HTTP 500 if the request did not contain the revision ID

     */

    public function restoreUniqueRevision($slug, $id)

    {

        $model = $this->crud->model;

        $entry = $model::findBySlugOrFail($slug);

        $this->uniqueSetup($entry);

        return parent::restoreRevision($id);

    }

    /**

     * Setup the controller for the entry.