Drupal 8.x

I have the following in formtable.routing.yml for a custom module named "Formtable":

formtable.form:
  path: /formtable
  defaults:
    _title: 'FormTable demonstrator'
    _form: \Drupal\formtable\Form\FormtableForm
  requirements:
    _access: 'true'

When visiting the path /formtable on the site I get "Access denied You are not authorized to access this page."

I need fields with widget select to make some of them read-only.
I tried both with
$form['field_localita_missione']['widget']['#disabled'] = TRUE;
that with
$form['field_localita_missione']['#attributes']['readonly'] = TRUE;
The former works but does not save the data, while the latter does not work

Hello,

I am representing an Agency and for keeping customers websites secure, we want to know if there exists for Drupal 8 and 9 a module allowing to give a passwordless access to en email address with a specific role to allow our agents to work on those website without keeping a permanent access to it ? This is useful for when one agent is leaving the agency, to not go from site to site to remove their access. So, their temporary access will be used only when there are tasks asigned to them and on defined time, it will self revoke.

Thank you.

How do I sum the row values in a column?

Integer numbers are in the table column Views. How do I get their sum?
thanks lot

Hello everyone,

I am trying to edit a page on an existing Drupal 8 site.

The URL exists and I can access it in my browser, however, I cannot find the page in admin under "Content".

All the other pages of the website are there and I am able to access and edit.

Any idea why the page cannot be found in admin under "Content" and how I can go about finding/editing it? 

Thanks in advance. 

Hi! I'm having some issues getting the Aggregator module to work for what I need. Here's the RSS feed I'm using:

https://www.ndsu.edu/news/view/headlines.rss

Long story short, I need to get the headline and URL of each news story (so the <title> and <link> values in the RSS feed). Then save that into Drupal.