[jira] [Commented] (SOLR-14383) Fix indexing-nested-documents.adoc XML/JSON examples to be accurate, consistent, and clear

["Chris M. Hostetter (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-14383?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17128682#comment-17128682 ] 

Chris M. Hostetter commented on SOLR-14383:
-------------------------------------------

i was recently reminded of this Jira when i tried to look up the current state of nested document support in solr 8.5, and realized a few additional things about these examples that are super confusing:
 # the field names used in these examples aren't valid in the default solr schema unless you have schemaless field guessing enabled – but even then the docs use "ID" (all caps) instead of "id" so trying to add these documents fails due to a missing uniqueKey
 # the examples only show the "raw" input documents, not how/where to index them – if you try to use {{[http://localhost:8983/solr/gettingstarted/update/json/docs]}} (the convenience path recommended in other places of the ref-guide because it automatically assumes the JSON content type and expects a list of JSON documents instead of a list of solr update commands) you will not get any nested docs, because that path has the implicit params for flattening custom json: [https://lucene.apache.org/solr/guide/8_5/transforming-and-indexing-custom-json.html]

> Fix indexing-nested-documents.adoc XML/JSON examples to be accurate, consistent, and clear
> ------------------------------------------------------------------------------------------
>
>                 Key: SOLR-14383
>                 URL: https://issues.apache.org/jira/browse/SOLR-14383
>             Project: Solr
>          Issue Type: Sub-task
>            Reporter: Chris M. Hostetter
>            Priority: Major
>
> As reported on solr-user@lucene by Peter Pimley...
> {noformat}
> The page "Indexing Nested Documents" has an XML example showing two
> different ways of adding nested documents:
> https://lucene.apache.org/solr/guide/8_5/indexing-nested-documents.html#xml-examples
> The text says:
>   "It illustrates two styles of adding child documents: the first is
> associated via a field "comment" (preferred), and the second is done
> in the classic way now referred to as an "anonymous" or "unlabelled"
> child document."
> However in the XML directly below there is no field named "comment".
> There is one named "content" and another named "comments" (plural),
> but no field named "comment".  In fact, looking at the Json example
> immediately below, I wonder if the XML element currently named
> "content" should be named "comments", and what is currently marked
> "comments" should be "content"?
> Secondly, in the Json example it says:
>   "The labelled relationship here is one child document but could have
> been wrapped in array brackets."
> However in the actual Json, the parent document (ID=1) with a labelled
> relationship has two child documents (IDs 2 and 3), and they are
> already in array brackets.
> {noformat}
> * The 2 examples (XML and JSON) should be updated to contains *structurally* identical content, (ie: same number of documents, with same field values, and same hierarchical relationships) to focus on demonstrating the syntax differences (ie: things like the special {{\_childDocuments\_}} key in json)
> * The paragraphs describing the examples should be updated to:
> ** refer to the correct field names -- since both "comments" and "contents" fields exist in the examples, it's impossible for novice users to even udnerstand where th "typo" might be in the descriptions (I'm pretty knowledgeable about Solr and even i'm second guessing myself as to what the intent in these paragraphs are)
> ** refer to documents by {{"id"}} value, not just descriptors like "first" and "second" 
> * it might be worth considering rewriting this section to use "callouts": https://asciidoctor.org/docs/user-manual/#callouts -- similar to how we use them in other sections like this: https://lucene.apache.org/solr/guide/8_5/uploading-data-with-index-handlers.html#sending-json-update-commands



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