re: nested fields

[Rick Leir <ri...@canadiana.ca>]

On Sun, Dec 13, 2015 at 8:26 PM, <so...@lucene.apache.org>
wrote:

>
> I want to define nested fileds in SOLR using schema.xml.


Us too (using Solr 5.3.1). And doco is not jumping out at me. My approach
is (please suggest a better way)
1/ create a blank core
2/ add a few nested docs using bin/post
3/ use the schema browser to see what fields got added
      http://localhost:8983/solr/#/dorsetdata/schema-browser
4/ add those fields to a schema.xml

Here is an experimental nested doc, which results in 3 'flat' Solr docs:
[
        {
            "id"  : "552",
            "key" : "552",
            "pkey": "552",
            "type_s": "book",
            "lang": "Eng",
            "media" : "text",
            "canonicalMaster": "tdr/552",
            "title": "The object, benefits and history of",
            "publisher": "[Halifax, N.S.? : s.n.], 1855 (Halifax, N.S. : J.
)",
            "content_type" : "parentDocument",
            "_childDocuments_" : [
                {
                    "id"  : "552.8",
                    "key" : "oocihm.552.8",
                    "pkey": "oocihm.552",
                    "type_s": "page",
                    "label": "Image 8",
                    "seq" : "8",
                    "canonicalMaster": "tdr/552/data/files/0008.jpg",
                    "canonicalMasterMime": "image/jpeg",
                    "text": "DBJE 11 OF NORMAL SCHOOLS. 3 illustration as a
whole of what such"
                },
                {
                    "id"  : "552.9",
                    "key" : "oocihm.552.9",
                    "pkey": "oocihm.552",
                    "type_s": "page",
                    "label": "Image 9",
                    "seq" : "9",
                    "canonicalMaster": "tdr/552/data/files/0009.jpg",
                    "canonicalMasterMime": "image/jpeg",
                    "text": "BESEFITS OF NORMAL SCHOOLS. with a natural
titncss. both  "
                }
            ]
        }
]

Then a search for normal:
$ curl http://localhost:8983/solr/dorsetdata2/query -d '
q={!parent which="content_type:parentDocument" score=total}
type_s:page AND normal&
wt=json&
omitHeader=true&
indent=false&
fl=score,[child parentFilter=type_s:book childFilter=normal ],title,publisher'

Look for ChildDocTransformerFactory in

https://cwiki.apache.org/confluence/display/solr/Transforming+Result+Documents
cheers - Rick