Hello,The problem of build an index is that each user has a custom source order
and category order: are not static orders (for example user X could have
category:5 as most important category but user Y could have category:9 as most
important).
Has anyone ever written a custom sort function in solr?Maybe a link of a
tutorial or an example could be very helpful. Thanks
Luca
On Tuesday, July 18, 2017 4:18 PM, alessandro.benedetti
<a.benede...@sease.io> wrote:
"I have different "sort preferences", so I can't build a index and use for
sorting.Maybe I have to sort by category then by source and by language or
by source, then by category and by date"
I would like to focus on this bit.
It is ok to go for a custom function and sort at query time, but I am
curious to explore why an index time solution should not be ok.
You can have these distinct fields :
source_priority
language_priority
category_priority
ect
This values can be assigned at the documents at indexing time ( using for
example a custom update request processor).
Then at query time you can easily sort on those values in a multi layered
approach :
sort:source_priority desc, category_priority desc
Of course, if the priority for a source changes quite often or if it's user
dependent, a query time solution would be preferred.
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Alessandro Benedetti
Search Consultant, R&D Software Engineer, Director
Sease Ltd. - www.sease.io
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