danse/lucene-fields.md

## lucene-fields.md

      
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              lucene-fields.md
            
          
    Naming convention for Lucene fields

This page describes how to convert from a JSON path in a document to a flat field name for Lucene indexing
Convention

Just replace the dot . with an underscore _. Convert cases to lowercase. Convert underscore separated to no separation.
Examples

doc.name -> name
doc.patient.name -> patient_name
doc.patient.referenceNo -> patient_referenceno
doc.patient.reference_no -> patient_referenceno // you should not have underscore separated in Javascript anyway