From: Ben Ostrowsky <ben@esilibrary.com>
Date: Thu, 5 Jan 2012 14:11:06 +0000 (+0000)
Subject: Avoid collisions while refreshing OPAC visibility
X-Git-Url: http://git.equinoxoli.org/?p=migration-tools.git;a=commitdiff_plain;h=9f5723e9ebdb55e14ff89b26b2250d96e64ffb3d

Avoid collisions while refreshing OPAC visibility
---

diff --git a/sql/base/base.sql b/sql/base/base.sql
index cb9dab4..0ebfb54 100644
--- a/sql/base/base.sql
+++ b/sql/base/base.sql
@@ -1275,7 +1275,7 @@ BEGIN
 	DELETE FROM asset.opac_visible_copies;
 
 	INSERT INTO asset.opac_visible_copies (id, circ_lib, record)
-		SELECT
+		SELECT DISTINCT
 			cp.id, cp.circ_lib, cn.record
 		FROM
 			asset.copy cp
@@ -1291,7 +1291,8 @@ BEGIN
 			cs.opac_visible AND
 			cl.opac_visible AND
 			cp.opac_visible AND
-			a.opac_visible;
+			a.opac_visible AND
+			cp.id NOT IN (SELECT id FROM asset.opac_visible_copies);
 
 END;