GBL Harvest and Index - Fails due to solr_bboxtype__ fields

[ewlarson]

Since GeoBlacklight v2.0.0, and the introduction of our bbox overlap ratio feature, Solr will automatically generate fields and values for these four coordinates:

• solr_bboxtype__minX
• solr_bboxtype__minY
• solr_bboxtype__maxX
• solr_bboxtype__maxY

These fields are returned during the GeoBlacklightHarvester's harvesting. But, you cannot pass these fields/values back into Solr during the index, without seeing Solr errors like:

RSolr::Error::Http (RSolr::Error::Http - 400 Bad Request)
Error: {
  "responseHeader":{
    "status":400,
    "QTime":869},
  "error":{
    "metadata":[
      "error-class","org.apache.solr.common.SolrException",
      "root-error-class","java.lang.IllegalArgumentException"],
    "msg":"Exception writing document id stanford-cg357zz0321 to the index; possible analysis error: DocValuesField \"solr_bboxtype__minX\" appears more than once in this document (only one value is allowed per field)",
    "code":400}}

The fix is simple. We just need to delete these fields via the document_transformer.

      def document_transformer
        @document_transformer || ->(document) do
          document.delete('_version_')
          document.delete('score')
          document.delete('timestamp')
          document.delete('solr_bboxtype__minX')
          document.delete('solr_bboxtype__minY')
          document.delete('solr_bboxtype__maxX')
          document.delete('solr_bboxtype__maxY')
          document
        end
      end