From 11b3170ae7ee9c1208b62d95c5d660c1519f140b Mon Sep 17 00:00:00 2001
From: Elmar Ludwig <elmar.ludwig@uni-osnabrueck.de>
Date: Fri, 29 Apr 2022 11:46:28 +0000
Subject: [PATCH] add index for booking_id to resource_booking_intervals, fixes
#198
Closes #198
---
...9_add_index_resource_booking_intervals.php | 42 +++++++++++++++++++
1 file changed, 42 insertions(+)
create mode 100644 db/migrations/5.1.29_add_index_resource_booking_intervals.php
diff --git a/db/migrations/5.1.29_add_index_resource_booking_intervals.php b/db/migrations/5.1.29_add_index_resource_booking_intervals.php
new file mode 100644
index 00000000000..d819125c381
--- /dev/null
+++ b/db/migrations/5.1.29_add_index_resource_booking_intervals.php
@@ -0,0 +1,42 @@
+<?php
+
+class AddIndexResourceBookingIntervals extends Migration
+{
+ public function description()
+ {
+ return 'add index for booking_id to resource_booking_intervals';
+ }
+
+ public function up()
+ {
+ $db = DBManager::get();
+
+ // avoid running this migration twice
+ $sql = "SHOW INDEX FROM resource_booking_intervals WHERE Key_name = 'booking_id'";
+ $result = $db->query($sql);
+
+ if ($result && $result->rowCount() > 0) {
+ return;
+ }
+
+ // index "assign_object_id" may not exist (depending on upgrade path)
+ $sql = "SHOW INDEX FROM resource_booking_intervals WHERE Key_name = 'assign_object_id'";
+ $result = $db->query($sql);
+
+ if ($result && $result->rowCount() > 0) {
+ $sql = 'ALTER TABLE resource_booking_intervals DROP INDEX assign_object_id';
+ $db->exec($sql);
+ }
+
+ $sql = 'ALTER TABLE resource_booking_intervals ADD INDEX booking_id (booking_id)';
+ $db->exec($sql);
+ }
+
+ public function down()
+ {
+ $db = DBManager::get();
+
+ $query = 'ALTER TABLE resource_booking_intervals DROP INDEX booking_id';
+ $db->exec($query);
+ }
+}
--
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