Drupal 8.x

I created a book with the module provided by Drupal 8, but I am unable to organize the pages of the book correctly in a view.

I want to organize the book in this way.

https://i.stack.imgur.com/SEnmC.png

In the left block, pages and sub-pages are correctly organized, but in the content (it's a view), pages and subpages don't match my ranking.

https://i.stack.imgur.com/6qTCx.png

I have a page (form) that I've created a twig template for, it's called `form--edit-communication-method-form.html.twig`, it loads in my actual form items as well as some other markup to polish everything up. However, now I need to present this form in a modal, and I'm attempting to do so by loading the form like so

I want to have an ID in my URL and the controller of my module should take the ID from the URL and display it. If the ID is changed in the browser and the side is reloaded, the page should print out the new ID. My problem is, that I can't get the ID out of the URL.

Example: /node/31?id=930bcae8-f8e5-491f-84fc-cdf104ca7e40

I have tried to following lines of code, to get the id and print it out:

'text' => \Drupal::request()->query->all(), <- prints out nothing

I am attempting to use a modal on a particular page using the following link to get there

<a class="use-ajax" data-dialog-type="modal" href="/my-modal-page">

However, there is some default modal behaviors I would like to disable:

Hi All,

I am a beginner in Drupal. I have to implement the RDF concept in Drupal 8 for a new project. Could you please guide me how to achieve the same? Kindly help me on this.

Note: I have tried to install RDFUI. But that installation throws some errors. It is not working as it is explained in the documentation.

Thanks in advance.