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N°1420 - Performances enhancement

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SVN:trunk[5833]
This commit is contained in:
Eric Espié
2018-06-07 15:06:38 +00:00
parent 5b2f32c08a
commit 70a0a3c52e
14 changed files with 300 additions and 113 deletions
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32
core/dbobjectset.class.php
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@@ -77,18 +77,20 @@ class DBObjectSet implements iDBObjectSetIterator
* @var mysqli_result
*/
protected $m_oSQLResult;
protected $m_bSort;
/**
* Create a new set based on a Search definition.
*
* @param DBSearch $oFilter The search filter defining the objects which are part of the set (multiple columns/objects per row are supported)
* @param hash $aOrderBy Array of '[<classalias>.]attcode' => bAscending
* @param hash $aArgs Values to substitute for the search/query parameters (if any). Format: param_name => value
* @param hash $aExtendedDataSpec
* @param array $aOrderBy Array of '[<classalias>.]attcode' => bAscending
* @param array $aArgs Values to substitute for the search/query parameters (if any). Format: param_name => value
* @param array $aExtendedDataSpec
* @param int $iLimitCount Maximum number of rows to load (i.e. equivalent to MySQL's LIMIT start, count)
* @param int $iLimitStart Index of the first row to load (i.e. equivalent to MySQL's LIMIT start, count)
* @param bool $bSort if false no order by is done
*/
public function __construct(DBSearch $oFilter, $aOrderBy = array(), $aArgs = array(), $aExtendedDataSpec = null, $iLimitCount = 0, $iLimitStart = 0)
public function __construct(DBSearch $oFilter, $aOrderBy = array(), $aArgs = array(), $aExtendedDataSpec = null, $iLimitCount = 0, $iLimitStart = 0, $bSort = true)
{
$this->m_oFilter = $oFilter->DeepClone();
$this->m_aAddedIds = array();
@@ -98,6 +100,7 @@ class DBObjectSet implements iDBObjectSetIterator
$this->m_aExtendedDataSpec = $aExtendedDataSpec;
$this->m_iLimitCount = $iLimitCount;
$this->m_iLimitStart = $iLimitStart;
$this->m_bSort = $bSort;
$this->m_iNumTotalDBRows = null;
$this->m_iNumLoadedDBRows = 0;
@@ -601,10 +604,15 @@ class DBObjectSet implements iDBObjectSetIterator
*
* Limitation: the sort order has no effect on objects added in-memory
*
* @return hash Format: field_code => boolean (true = ascending, false = descending)
* @return array Format: field_code => boolean (true = ascending, false = descending)
*/
public function GetRealSortOrder()
{
if (!$this->m_bSort)
{
// No order by
return array();
}
// Get the class default sort order if not specified with the API
//
if (empty($this->m_aOrderBy))
@@ -719,7 +727,19 @@ class DBObjectSet implements iDBObjectSetIterator
return $this->m_iNumTotalDBRows + count($this->m_aAddedObjects); // Does it fix Trac #887 ??
}
public function CountExceeds($iLimit)
{
$sSQL = $this->m_oFilter->MakeSelectQuery(array(), $this->m_aArgs, null, null, $iLimit + 2, 0, true);
$resQuery = CMDBSource::Query($sSQL);
if (!$resQuery) return (0 > $iLimit);
$aRow = CMDBSource::FetchArray($resQuery);
CMDBSource::FreeResult($resQuery);
return (intval($aRow['COUNT']) > $iLimit);
}
/**
* Number of rows available in memory (loaded from DB + added in memory)
*