Fix bug: NULL description on cloned trees.

[refs #70468220]

Author: adamhooper

conf/evolutions/default/62.sql

@@ -0,0 +1,17 @@
+# --- !Ups
+
+BEGIN;
+
+UPDATE tree SET description = '' WHERE description IS NULL;
+
+ALTER TABLE tree ALTER COLUMN description SET NOT NULL;
+
+COMMIT;
+
+# --- !Downs
+
+BEGIN;
+
+ALTER TABLE tree ALTER COLUMN description DROP NOT NULL;
+
+COMMIT;

worker/src/main/scala/org/overviewproject/clone/TreeCloner.scala

@@ -7,9 +7,9 @@ object TreeCloner extends InDatabaseCloner {
   override def cloneQuery: SqlQuery =
     SQL("""
         INSERT INTO tree (id, document_set_id, title, document_count, lang, supplied_stop_words,
-          important_words, created_at)
+          important_words, description, created_at)
           SELECT ({cloneDocumentSetId} << 32) | ({documentSetIdMask} & id), {cloneDocumentSetId}, title, document_count, lang, supplied_stop_words, 
-            important_words, created_at
+            important_words, description, created_at
           FROM tree WHERE document_set_id = {sourceDocumentSetId}
         """)
-}
+}