Let's say I have two content types: Page and News. Both of them have a field called Tags which is taxonomy term.
Let's say I tag a page and a news item with the term 'celebration'. When a user goes to the page on the front end website, the user should see related news items on the right side bar. A news item is related to a page if they both have at least one tag in common.
I tried to set up a news item block, but i don't know how to tell it to show only news items that share at least 1 tag in common with the page.