# HG changeset patch
# Parent 6b7f257e5de8889a4db58463eb93de2befb9694d
Allow using SQL search operators "_" and "%" in searches

"_" for one character (included in \w, so not listed)
"%" for zero or more characters

This is only a quick&dirty solution that works when not using Xapian and
using an RDBMS that implements INTERSECT, e.g. PostgreSQL or SQLite.

http://issues.roundup-tracker.org/issue2550771
(Allow to find substring matches for all text search)

diff -r 6b7f257e5de8 roundup/backends/indexer_rdbms.py
--- a/roundup/backends/indexer_rdbms.py	Thu Aug 13 14:45:53 2015 +1000
+++ b/roundup/backends/indexer_rdbms.py	Wed Jan 06 13:32:14 2016 +0100
@@ -94,7 +94,10 @@
 
         if self.db.implements_intersect:
             # simple AND search
-            sql = 'select distinct(_textid) from __words where _word=%s'%self.db.arg
+            if '_' in word or '%' in word:
+                sql = 'select distinct(_textid) from __words where _word LIKE %s'%self.db.arg
+            else:
+                sql = 'select distinct(_textid) from __words where _word=%s'%self.db.arg
             sql = '\nINTERSECT\n'.join([sql]*len(l))
             self.db.cursor.execute(sql, tuple(l))
             r = self.db.cursor.fetchall()
diff -r 6b7f257e5de8 roundup/cgi/actions.py
--- a/roundup/cgi/actions.py	Thu Aug 13 14:45:53 2015 +1000
+++ b/roundup/cgi/actions.py	Wed Jan 06 13:32:14 2016 +0100
@@ -1055,7 +1055,7 @@
         # full-text search
         if request.search_text:
             matches = self.db.indexer.search(
-                re.findall(r'\b\w{2,25}\b', request.search_text), klass)
+                re.findall(r'[\w%]{2,25}', request.search_text), klass)
         else:
             matches = None
 
diff -r 6b7f257e5de8 roundup/cgi/templating.py
--- a/roundup/cgi/templating.py	Thu Aug 13 14:45:53 2015 +1000
+++ b/roundup/cgi/templating.py	Wed Jan 06 13:32:14 2016 +0100
@@ -2781,7 +2781,7 @@
         if self.search_text:
             matches = self.client.db.indexer.search(
                 [w.upper().encode("utf-8", "replace") for w in re.findall(
-                    r'(?u)\b\w{2,25}\b',
+                    r'(?u)[\w%]{2,25}',
                     unicode(self.search_text, "utf-8", "replace")
                 )], klass)
         else: