From 2b974d886d41bd2a3042bf6b6160337e8c3f4768 Mon Sep 17 00:00:00 2001
From: Georgy Litvinov <git@litvinovg.pro>
Date: Mon, 31 Aug 2020 11:16:29 +0200
Subject: [PATCH] Remove prefixes for valid alpha sorting in classifiers

---
 vivocore/conf/schema.xml | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/vivocore/conf/schema.xml b/vivocore/conf/schema.xml
index 856dbc3..b3eef1c 100644
--- a/vivocore/conf/schema.xml
+++ b/vivocore/conf/schema.xml
@@ -132,7 +132,7 @@
   <!--  nameText added for NIHVIVO-3701 -->
   <field name="nameText" type="text" indexed="true" stored="false" multiValued="true"/>
   
-  <field name="nameLowercase" type="lowercase" indexed="true" stored="false" multiValued="true" omitNorms="false"/>
+  <field name="nameLowercase" type="lowercase_iph" indexed="true" stored="false" multiValued="true" omitNorms="false"/>
   <!-- A sortable version of nameLowercase -->
   <field name="nameLowercaseSingleValued" type="lowercase" indexed="true" stored="false" multiValued="false" omitNorms="true" />  
   <field name="nameUnstemmed" type="text_unstemmed" indexed="true" stored="false" multiValued="true" omitNorms="false"/>
@@ -1316,6 +1316,16 @@
       </analyzer>
     </fieldType>
 
+    <fieldType name="lowercase_iph" class="solr.TextField" positionIncrementGap="100">
+      <analyzer>
+        <charFilter class="solr.PatternReplaceCharFilterFactory" pattern="^[ʼ«]" replacement=""/>
+        <tokenizer class="solr.KeywordTokenizerFactory"/>
+        <filter class="solr.StopFilterFactory" ignoreCase="true" words="stopwords.txt"  />
+        <filter class="solr.ASCIIFoldingFilterFactory"/>
+        <filter class="solr.LowerCaseFilterFactory" />
+      </analyzer>
+    </fieldType>
+
     <fieldType name="text_ru_morph" class="solr.TextField" positionIncrementGap="100">
       <analyzer>
         <charFilter class="solr.HTMLStripCharFilterFactory"/>