Modify page before it gets rendered

Flow
1

Hello all

I would like to modify a page/component before it get rendered. E.g. when the page/component is evaluated on the server I make
a database lookup and depending on the result I would like to modify the page/component and render that new page.

E.g. if the database query is empty I would like to show a “Register something component” and if the query is non empty it should
display some grid.

Best regards,
Dieter

2

So would it make sense to put that logic in the constructor?

3

If the page is refreshed is a new page object be created?
Because the change to the database could have happened,
and on refresh the other component should be displayed.

4

Refreshed how, browser page reload? If that, then yes, the objects will be recreated. If it’s an in-app navigation event, you should take care of it in a suitable navigation event.

-Olli