[Xapian-discuss] Combined search in multiple fields help

[Do.]

Hello,

I want to let user specify by drop down list to what fields his query will be searched. For example "Full-text" or "Title+Author", then user enters search query as usual (without using prefixes). But how to modify query so it cover two fields in a right way?

For a starter how I think about modifying query to limit it just to single globally selected field:
1. after user enters free-text query I parse it as usual via parse_query(),
2. then I iterate through resulting Xapian::Query by get_terms and apend A or S prefix to evey term (after Z if Z is present, and not appending where other prefix is already applied (for example H)).
(Btw, is this optimal strategy?)

What I think about multiple fields and where it fail:
There is two situation depending on default_op().
'or') I just duplicate parsed query as whole and add different prefix to each of them, then combine these big queries with 'or'.
'and') hard part begin, probably I should duplicate each term, add one prefix to original and other to clone and combine it with OR with existing term. Right? Will this be possible? Any suggestions?

Don.