Filtering DocLister Results by a TV Value with containsOne

DocLister made TV-based filtering much cleaner than many older Ditto setups, especially when the field stores category-like values and the goal is to match one current resource value against another.

The donor case compared a DocLister filter like this:

&filters=`tv:category:containsOne:[*category*]`

against a more manual Ditto pattern using localFilterDelimiter and custom filter logic.

Why containsOne is useful

• It is more expressive than hand-rolled delimiter logic.
• You can describe the filter in one line instead of maintaining custom filter code.
• It reads closer to the business rule: “show records whose category TV contains the current category value.”

For teams moving older Ditto filters toward cleaner DocLister-based listings, this is exactly the kind of small improvement that makes a codebase easier to maintain.