My client asked me for a single field, that would work 2 ways:
- Autocomplete filter based on taxonomy.
- If site visitor inputs something that's not in taxonomy, full text search should be performed on content's body, and appropriate info message shown.
That way if user enters category name, he will get hand picked nodes listed, and if anything else, he will at least get some content.
Separately, it's easy. But how to combine these behaviours in one field?