how to filter search by values that are not available

Question

I have a list of items as:

i = SearchQuerySet().models(Item)

now, each item in i has a attribute, price

I want to narrow the result in which price information is not available along with the ones falling in a given range

something like

i.narrow('price:( None OR [300 TO 400 ] )')

how can that be done?

Answer 1

Try this:

-(-price:[300 TO 400] AND price:[* TO *])

is logically the same and it works in Solr.