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Creation of indexes on several columns (exploited for a few classes when it was obvious)

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SVN:trunk[2924]
This commit is contained in:
Romain Quetiez
2013-10-16 15:21:20 +00:00
parent eda203af26
commit 401d61aa76
7 changed files with 140 additions and 17 deletions
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32
core/cmdbsource.class.inc.php
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@@ -1,5 +1,5 @@
<?php
// Copyright (C) 2010-2012 Combodo SARL
// Copyright (C) 2010-2013 Combodo SARL
//
// This file is part of iTop.
//
@@ -480,14 +480,23 @@ class CMDBSource
return ($aFieldData["Type"]);
}
public static function HasIndex($sTable, $sField)
public static function HasIndex($sTable, $sIndexId, $aFields = null)
{
$aTableInfo = self::GetTableInfo($sTable);
if (empty($aTableInfo)) return false;
if (!array_key_exists($sField, $aTableInfo["Fields"])) return false;
$aFieldData = $aTableInfo["Fields"][$sField];
// $aFieldData could be 'PRI' for the primary key, or 'MUL', or ?
return (strlen($aFieldData["Key"]) > 0);
if (!array_key_exists($sIndexId, $aTableInfo['Indexes'])) return false;
if ($aFields == null)
{
// Just searching for the name
return true;
}
// Compare the columns
$sSearchedIndex = implode(',', $aFields);
$sExistingIndex = implode(',', $aTableInfo['Indexes'][$sIndexId]);
return ($sSearchedIndex == $sExistingIndex);
}
// Returns an array of (fieldname => array of field info)
@@ -537,6 +546,17 @@ class CMDBSource
// Table does not exist
self::$m_aTablesInfo[strtolower($sTableName)] = null;
}
if (!is_null(self::$m_aTablesInfo[strtolower($sTableName)]))
{
$aIndexes = self::QueryToArray("SHOW INDEXES FROM `$sTableName`");
$aMyIndexes = array();
foreach ($aIndexes as $aIndexColumn)
{
$aMyIndexes[$aIndexColumn['Key_name']][$aIndexColumn['Seq_in_index']-1] = $aIndexColumn['Column_name'];
}
self::$m_aTablesInfo[strtolower($sTableName)]["Indexes"] = $aMyIndexes;
}
}
//public static function EnumTables()
//{