It's possible to search for stocks filtering by M, sorting by qty, and then parent docs need to be added to result list. Unfortunately, there is no [parent] result transformer. Thus it can be done with generic https://lucene.apache.org/solr/guide/6_6/transforming-result-documents.html#TransformingResultDocuments-_subquery_ .
On Fri, May 24, 2019 at 3:16 PM Gian Marco Tagliani <gm.tagli...@gmail.com> wrote: > Hi all, > I'm facing a problem with Nested Documents. > > To illustrate my problem I'll use the example with T-shirts in stock. > For every model of a T-shirt, we can have different colors and sizes, for > each combination we have the number of items in stock. > > In Solr, for every model we have a document, for every combination of color > and size we have a nested child document. > > > model A > - color : red, size M, quantity 8 > - color : blue, size L, quantity 4 > - color : white, size M, quantity 1 > > model B > - color yellow, size S, quantity 7 > - color yellow, size M, quantity 3 > > model C > - color red, size M, quantity 5 > - color black, size L, quantity 6 > > > I'm interested in size M only, and I want to know our stock ordered by > quantity. > > model A, color red, quantity 8 > model C, color red, quantity 5 > model B, color yellow, quantity 3 > model A, color white, quantity 1 > > > > My first idea was using the Json Nested Facet ( > > https://lucene.apache.org/solr/guide/json-facet-api.html#nested-facet-example > ) > In that case I'm not able to sort by quantity nor discriminate between the > "color red" and "color white" lines for model A. > > My second idea was to use the Analytics Component ( > https://lucene.apache.org/solr/guide/analytics.html) > In this case I'm not able to get data from father and child document to > build a facet. > > Has any of you encountered a similar problem? Do you have any idea on how > to address my case? > > > Thanks in advance > Gian Marco Tagliani > -- Sincerely yours Mikhail Khludnev
