From 1f50bbf1849cfe6bac3d0d26ade9fb6febbbe205 Mon Sep 17 00:00:00 2001
From: Andrew Nicols <andrew@nicols.co.uk>
Date: Fri, 6 Mar 2015 11:18:03 +0800
Subject: [PATCH] MDL-49381 message: Remove old useridfrom indexes

---
 lib/db/install.xml |  4 +---
 lib/db/upgrade.php | 24 ++++++++++++++++++++++++
 version.php        |  2 +-
 3 files changed, 26 insertions(+), 4 deletions(-)

diff --git a/lib/db/install.xml b/lib/db/install.xml
index a6391b9fc98..a9ea1a862c3 100644
--- a/lib/db/install.xml
+++ b/lib/db/install.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<XMLDB PATH="lib/db" VERSION="20150224" COMMENT="XMLDB file for core Moodle tables"
+<XMLDB PATH="lib/db" VERSION="20150306" COMMENT="XMLDB file for core Moodle tables"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:noNamespaceSchemaLocation="../../lib/xmldb/xmldb.xsd"
 >
@@ -539,7 +539,6 @@
         <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
       </KEYS>
       <INDEXES>
-        <INDEX NAME="useridfrom" UNIQUE="false" FIELDS="useridfrom"/>
         <INDEX NAME="useridto" UNIQUE="false" FIELDS="useridto"/>
         <INDEX NAME="useridfromto" UNIQUE="false" FIELDS="useridfrom, useridto"/>
       </INDEXES>
@@ -564,7 +563,6 @@
         <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
       </KEYS>
       <INDEXES>
-        <INDEX NAME="useridfrom" UNIQUE="false" FIELDS="useridfrom"/>
         <INDEX NAME="useridto" UNIQUE="false" FIELDS="useridto"/>
         <INDEX NAME="useridfromto" UNIQUE="false" FIELDS="useridfrom, useridto"/>
       </INDEXES>
diff --git a/lib/db/upgrade.php b/lib/db/upgrade.php
index a0aed789465..a198c09bc20 100644
--- a/lib/db/upgrade.php
+++ b/lib/db/upgrade.php
@@ -4223,5 +4223,29 @@ function xmldb_main_upgrade($oldversion) {
         upgrade_main_savepoint(true, 2015031100.00);
     }
 
+    if ($oldversion < 2015031400.00) {
+
+        // Define index useridfrom (not unique) to be dropped form message.
+        $table = new xmldb_table('message');
+        $index = new xmldb_index('useridfrom', XMLDB_INDEX_NOTUNIQUE, array('useridfrom'));
+
+        // Conditionally launch drop index useridfrom.
+        if ($dbman->index_exists($table, $index)) {
+            $dbman->drop_index($table, $index);
+        }
+
+        // Define index useridfrom (not unique) to be dropped form message_read.
+        $table = new xmldb_table('message_read');
+        $index = new xmldb_index('useridfrom', XMLDB_INDEX_NOTUNIQUE, array('useridfrom'));
+
+        // Conditionally launch drop index useridfrom.
+        if ($dbman->index_exists($table, $index)) {
+            $dbman->drop_index($table, $index);
+        }
+
+        // Main savepoint reached.
+        upgrade_main_savepoint(true, 2015031400.00);
+    }
+
     return true;
 }
diff --git a/version.php b/version.php
index c5e177d3b7a..4578a6f93fb 100644
--- a/version.php
+++ b/version.php
@@ -29,7 +29,7 @@
 
 defined('MOODLE_INTERNAL') || die();
 
-$version  = 2015031300.00;              // YYYYMMDD      = weekly release date of this DEV branch.
+$version  = 2015031400.00;              // YYYYMMDD      = weekly release date of this DEV branch.
                                         //         RR    = release increments - 00 in DEV branches.
                                         //           .XX = incremental changes.