Add Alternative Query Suggestion In No Results Message

[thostetler]

When no results are found for a non-fielded query where all the characters are uppercase, we should provide an alternative query to try that is lowercase.

@aaccomazzi are there other cases when this message should show?

[csgrant00]

@aaccomazzi @thostetler - User group suggested this for an institution search that returns no results (e.g. Harvard - did you mean Harvard U). Maybe an instutution search that is 1 word could suggest - did you mean "blah U" or "blah Coll" ?

[aaccomazzi]

In the case of the uppercase query, it's easy for the application to detect and provide a suggestion. For the institution query, it's much harder, because I think a suggestion is only useful if it steers the user towards something which produces results. So I think that here we'd need autocomplete.

[thostetler]

@aaccomazzi @csgrant00 how do you guys feel about this?

[aaccomazzi]

Hi Tim, I like it, but why not put it as the first option in the bullet list:

• Try an alternate query: helio cmr mutation

and we would only do this when the input is all uppercase.

[aaccomazzi]

We have seen cases where the user enters the query from the classic form with the title in all caps and we end up with a query that looks like this:

title:(FOO BAR XXX)

In which case no warning is issued (presumably because the field title makes the entire string be mixed case). Can we catch these cases as well with a regexp?