Files
iTop/core/dbsearch.class.php
Romain Quetiez df9f25dc3c Optimization: improved the OQL cache:
- take benefit of the APC cache (if present)
- memory indexation could fail in case of long queries (query id based on a md5)
- added kpi measure on the OQL parsing

SVN:trunk[3635]
2015-07-09 14:37:29 +00:00

752 lines
24 KiB
PHP

<?php
// Copyright (C) 2015 Combodo SARL
//
// This file is part of iTop.
//
// iTop is free software; you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// iTop is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with iTop. If not, see <http://www.gnu.org/licenses/>
require_once('dbobjectsearch.class.php');
require_once('dbunionsearch.class.php');
define('TREE_OPERATOR_EQUALS', 0);
define('TREE_OPERATOR_BELOW', 1);
define('TREE_OPERATOR_BELOW_STRICT', 2);
define('TREE_OPERATOR_NOT_BELOW', 3);
define('TREE_OPERATOR_NOT_BELOW_STRICT', 4);
define('TREE_OPERATOR_ABOVE', 5);
define('TREE_OPERATOR_ABOVE_STRICT', 6);
define('TREE_OPERATOR_NOT_ABOVE', 7);
define('TREE_OPERATOR_NOT_ABOVE_STRICT', 8);
/**
* An object search
*
* Note: in the ancient times of iTop, a search was named after DBObjectSearch.
* When the UNION has been introduced, it has been decided to:
* - declare a hierarchy of search classes, with two leafs :
* - one class to cope with a single query (A JOIN B... WHERE...)
* - and the other to cope with several queries (query1 UNION query2)
* - in order to preserve forward/backward compatibility of the existing modules
* - keep the name of DBObjectSearch even if it a little bit confusing
* - do not provide a type-hint for function parameters defined in the modules
* - leave the statements DBObjectSearch::FromOQL in the modules, though DBSearch is more relevant
*
* @copyright Copyright (C) 2015 Combodo SARL
* @license http://opensource.org/licenses/AGPL-3.0
*/
abstract class DBSearch
{
protected $m_bDataFiltered = false;
protected $m_aModifierProperties = array();
// By default, some information may be hidden to the current user
// But it may happen that we need to disable that feature
protected $m_bAllowAllData = false;
public function __construct()
{
}
/**
* Perform a deep clone (as opposed to "clone" which does copy a reference to the underlying objects)
**/
public function DeepClone()
{
return unserialize(serialize($this)); // Beware this serializes/unserializes the search and its parameters as well
}
public function AllowAllData() {$this->m_bAllowAllData = true;}
public function IsAllDataAllowed() {return $this->m_bAllowAllData;}
public function IsDataFiltered() {return $this->m_bDataFiltered; }
public function SetDataFiltered() {$this->m_bDataFiltered = true;}
public function SetModifierProperty($sPluginClass, $sProperty, $value)
{
$this->m_aModifierProperties[$sPluginClass][$sProperty] = $value;
}
public function GetModifierProperties($sPluginClass)
{
if (array_key_exists($sPluginClass, $this->m_aModifierProperties))
{
return $this->m_aModifierProperties[$sPluginClass];
}
else
{
return array();
}
}
abstract public function GetClassName($sAlias);
abstract public function GetClass();
abstract public function GetClassAlias();
/**
* Change the class (only subclasses are supported as of now, because the conditions must fit the new class)
* Defaults to the first selected class (most of the time it is also the first joined class
*/
abstract public function ChangeClass($sNewClass, $sAlias = null);
abstract public function GetSelectedClasses();
abstract public function IsAny();
public function Describe(){return 'deprecated - use ToOQL() instead';}
public function DescribeConditionPointTo($sExtKeyAttCode, $aPointingTo){return 'deprecated - use ToOQL() instead';}
public function DescribeConditionRefBy($sForeignClass, $sForeignExtKeyAttCode){return 'deprecated - use ToOQL() instead';}
public function DescribeConditionRelTo($aRelInfo){return 'deprecated - use ToOQL() instead';}
public function DescribeConditions(){return 'deprecated - use ToOQL() instead';}
public function __DescribeHTML(){return 'deprecated - use ToOQL() instead';}
abstract public function ResetCondition();
abstract public function MergeConditionExpression($oExpression);
abstract public function AddConditionExpression($oExpression);
abstract public function AddNameCondition($sName);
abstract public function AddCondition($sFilterCode, $value, $sOpCode = null);
/**
* Specify a condition on external keys or link sets
* @param sAttSpec Can be either an attribute code or extkey->[sAttSpec] or linkset->[sAttSpec] and so on, recursively
* Example: infra_list->ci_id->location_id->country
* @param value The value to match (can be an array => IN(val1, val2...)
* @return void
*/
abstract public function AddConditionAdvanced($sAttSpec, $value);
abstract public function AddCondition_FullText($sFullText);
abstract public function AddCondition_PointingTo(DBObjectSearch $oFilter, $sExtKeyAttCode, $iOperatorCode = TREE_OPERATOR_EQUALS);
abstract public function AddCondition_ReferencedBy(DBObjectSearch $oFilter, $sForeignExtKeyAttCode);
abstract public function Intersect(DBSearch $oFilter);
abstract public function SetInternalParams($aParams);
abstract public function GetInternalParams();
abstract public function GetQueryParams();
abstract public function ListConstantFields();
/**
* Turn the parameters (:xxx) into scalar values in order to easily
* serialize a search
*/
abstract public function ApplyParameters($aArgs);
public function serialize($bDevelopParams = false, $aContextParams = null)
{
$sOql = $this->ToOql($bDevelopParams, $aContextParams);
return base64_encode(serialize(array($sOql, $this->GetInternalParams(), $this->m_aModifierProperties)));
}
static public function unserialize($sValue)
{
$aData = unserialize(base64_decode($sValue));
$sOql = $aData[0];
$aParams = $aData[1];
// We've tried to use gzcompress/gzuncompress, but for some specific queries
// it was not working at all (See Trac #193)
// gzuncompress was issuing a warning "data error" and the return object was null
$oRetFilter = self::FromOQL($sOql, $aParams);
$oRetFilter->m_aModifierProperties = $aData[2];
return $oRetFilter;
}
abstract public function ToOQL($bDevelopParams = false, $aContextParams = null);
static protected $m_aOQLQueries = array();
// Do not filter out depending on user rights
// In particular when we are currently in the process of evaluating the user rights...
static public function FromOQL_AllData($sQuery, $aParams = null)
{
$oRes = self::FromOQL($sQuery, $aParams);
$oRes->AllowAllData();
return $oRes;
}
static public function FromOQL($sQuery, $aParams = null)
{
if (empty($sQuery)) return null;
// Query caching
$sQueryId = md5($sQuery);
$bOQLCacheEnabled = true;
if ($bOQLCacheEnabled)
{
if (array_key_exists($sQueryId, self::$m_aOQLQueries))
{
// hit!
$oResultFilter = self::$m_aOQLQueries[$sQueryId]->DeepClone();
}
elseif (self::$m_bUseAPCCache)
{
// Note: For versions of APC older than 3.0.17, fetch() accepts only one parameter
//
$sAPCCacheId = 'itop-'.MetaModel::GetEnvironmentId().'-dbsearch-cache-'.$sQueryId;
$oKPI = new ExecutionKPI();
$result = apc_fetch($sAPCCacheId);
$oKPI->ComputeStats('Search APC (fetch)', $sQuery);
if (is_object($result))
{
$oResultFilter = $result;
self::$m_aOQLQueries[$sQueryId] = $oResultFilter->DeepClone();
}
}
}
if (!isset($oResultFilter))
{
$oKPI = new ExecutionKPI();
$oOql = new OqlInterpreter($sQuery);
$oOqlQuery = $oOql->ParseQuery();
$oMetaModel = new ModelReflectionRuntime();
$oOqlQuery->Check($oMetaModel, $sQuery); // Exceptions thrown in case of issue
$oResultFilter = $oOqlQuery->ToDBSearch($sQuery);
$oKPI->ComputeStats('Parse OQL', $sQuery);
if ($bOQLCacheEnabled)
{
self::$m_aOQLQueries[$sQueryId] = $oResultFilter->DeepClone();
if (self::$m_bUseAPCCache)
{
$oKPI = new ExecutionKPI();
apc_store($sAPCCacheId, $oResultFilter, self::$m_iQueryCacheTTL);
$oKPI->ComputeStats('Search APC (store)', $sQueryId);
}
}
}
if (!is_null($aParams))
{
$oResultFilter->SetInternalParams($aParams);
}
return $oResultFilter;
}
// Alternative to object mapping: the data are transfered directly into an array
// This is 10 times faster than creating a set of objects, and makes sense when optimization is required
/**
* @param hash $aOrderBy Array of '[<classalias>.]attcode' => bAscending
*/
public function ToDataArray($aColumns = array(), $aOrderBy = array(), $aArgs = array())
{
$sSQL = $this->MakeSelectQuery($aOrderBy, $aArgs);
$resQuery = CMDBSource::Query($sSQL);
if (!$resQuery) return;
if (count($aColumns) == 0)
{
$aColumns = array_keys(MetaModel::ListAttributeDefs($this->GetClass()));
// Add the standard id (as first column)
array_unshift($aColumns, 'id');
}
$aQueryCols = CMDBSource::GetColumns($resQuery);
$sClassAlias = $this->GetClassAlias();
$aColMap = array();
foreach ($aColumns as $sAttCode)
{
$sColName = $sClassAlias.$sAttCode;
if (in_array($sColName, $aQueryCols))
{
$aColMap[$sAttCode] = $sColName;
}
}
$aRes = array();
while ($aRow = CMDBSource::FetchArray($resQuery))
{
$aMappedRow = array();
foreach ($aColMap as $sAttCode => $sColName)
{
$aMappedRow[$sAttCode] = $aRow[$sColName];
}
$aRes[] = $aMappedRow;
}
CMDBSource::FreeResult($resQuery);
return $aRes;
}
////////////////////////////////////////////////////////////////////////////
//
// Construction of the SQL queries
//
////////////////////////////////////////////////////////////////////////////
protected static $m_aQueryStructCache = array();
public function MakeGroupByQuery($aArgs, $aGroupByExpr, $bExcludeNullValues = false)
{
if ($bExcludeNullValues)
{
// Null values are not handled (though external keys set to 0 are allowed)
$oQueryFilter = $this->DeepClone();
foreach ($aGroupByExpr as $oGroupByExp)
{
$oNull = new FunctionExpression('ISNULL', array($oGroupByExp));
$oNotNull = new BinaryExpression($oNull, '!=', new TrueExpression());
$oQueryFilter->AddConditionExpression($oNotNull);
}
}
else
{
$oQueryFilter = $this;
}
$aAttToLoad = array();
$oSQLQuery = $oQueryFilter->GetSQLQuery(array(), $aArgs, $aAttToLoad, null, 0, 0, false, $aGroupByExpr);
$aScalarArgs = array_merge(MetaModel::PrepareQueryArguments($aArgs), $this->GetInternalParams());
try
{
$bBeautifulSQL = self::$m_bTraceQueries || self::$m_bDebugQuery || self::$m_bIndentQueries;
$sRes = $oSQLQuery->RenderGroupBy($aScalarArgs, $bBeautifulSQL);
}
catch (MissingQueryArgument $e)
{
// Add some information...
$e->addInfo('OQL', $this->ToOQL());
throw $e;
}
$this->AddQueryTraceGroupBy($aArgs, $aGroupByExpr, $sRes);
return $sRes;
}
/**
* @param hash $aOrderBy Array of '[<classalias>.]attcode' => bAscending
*/
public function MakeSelectQuery($aOrderBy = array(), $aArgs = array(), $aAttToLoad = null, $aExtendedDataSpec = null, $iLimitCount = 0, $iLimitStart = 0, $bGetCount = false)
{
// Check the order by specification, and prefix with the class alias
// and make sure that the ordering columns are going to be selected
//
$sClass = $this->GetClass();
$sClassAlias = $this->GetClassAlias();
$aOrderSpec = array();
foreach ($aOrderBy as $sFieldAlias => $bAscending)
{
if (!is_bool($bAscending))
{
throw new CoreException("Wrong direction in ORDER BY spec, found '$bAscending' and expecting a boolean value");
}
$iDotPos = strpos($sFieldAlias, '.');
if ($iDotPos === false)
{
$sAttClass = $sClass;
$sAttClassAlias = $sClassAlias;
$sAttCode = $sFieldAlias;
}
else
{
$sAttClassAlias = substr($sFieldAlias, 0, $iDotPos);
$sAttClass = $this->GetClassName($sAttClassAlias);
$sAttCode = substr($sFieldAlias, $iDotPos + 1);
}
if ($sAttCode != 'id')
{
MyHelpers::CheckValueInArray('field name in ORDER BY spec', $sAttCode, MetaModel::GetAttributesList($sAttClass));
$oAttDef = MetaModel::GetAttributeDef($sAttClass, $sAttCode);
foreach($oAttDef->GetOrderBySQLExpressions($sAttClassAlias) as $sSQLExpression)
{
$aOrderSpec[$sSQLExpression] = $bAscending;
}
}
else
{
$aOrderSpec['`'.$sAttClassAlias.$sAttCode.'`'] = $bAscending;
}
// Make sure that the columns used for sorting are present in the loaded columns
if (!is_null($aAttToLoad) && !isset($aAttToLoad[$sAttClassAlias][$sAttCode]))
{
$aAttToLoad[$sAttClassAlias][$sAttCode] = MetaModel::GetAttributeDef($sAttClass, $sAttCode);
}
}
$oSQLQuery = $this->GetSQLQuery($aOrderBy, $aArgs, $aAttToLoad, $aExtendedDataSpec, $iLimitCount, $iLimitStart, $bGetCount);
$aScalarArgs = array_merge(MetaModel::PrepareQueryArguments($aArgs), $this->GetInternalParams());
try
{
$bBeautifulSQL = self::$m_bTraceQueries || self::$m_bDebugQuery || self::$m_bIndentQueries;
$sRes = $oSQLQuery->RenderSelect($aOrderSpec, $aScalarArgs, $iLimitCount, $iLimitStart, $bGetCount, $bBeautifulSQL);
if ($sClassAlias == '_itop_')
{
echo $sRes."<br/>\n";
}
}
catch (MissingQueryArgument $e)
{
// Add some information...
$e->addInfo('OQL', $this->ToOQL());
throw $e;
}
$this->AddQueryTraceSelect($aOrderBy, $aArgs, $aAttToLoad, $aExtendedDataSpec, $iLimitCount, $iLimitStart, $bGetCount, $sRes);
return $sRes;
}
protected function GetSQLQuery($aOrderBy, $aArgs, $aAttToLoad, $aExtendedDataSpec, $iLimitCount, $iLimitStart, $bGetCount, $aGroupByExpr = null)
{
// Hide objects that are not visible to the current user
//
$oSearch = $this;
if (!$this->IsAllDataAllowed() && !$this->IsDataFiltered())
{
$oVisibleObjects = UserRights::GetSelectFilter($this->GetClass(), $this->GetModifierProperties('UserRightsGetSelectFilter'));
if ($oVisibleObjects === false)
{
// Make sure this is a valid search object, saying NO for all
$oVisibleObjects = DBObjectSearch::FromEmptySet($this->GetClass());
}
if (is_object($oVisibleObjects))
{
$oSearch = $this->Intersect($oVisibleObjects);
$oSearch->SetDataFiltered();
}
else
{
// should be true at this point, meaning that no additional filtering
// is required
}
}
// Compute query modifiers properties (can be set in the search itself, by the context, etc.)
//
$aModifierProperties = MetaModel::MakeModifierProperties($oSearch);
// Create a unique cache id
//
if (self::$m_bQueryCacheEnabled || self::$m_bTraceQueries)
{
// Need to identify the query
$sOqlQuery = $oSearch->ToOql();
if (count($aModifierProperties))
{
array_multisort($aModifierProperties);
$sModifierProperties = json_encode($aModifierProperties);
}
else
{
$sModifierProperties = '';
}
$sRawId = $sOqlQuery.$sModifierProperties;
if (!is_null($aAttToLoad))
{
$sRawId .= json_encode($aAttToLoad);
}
if (!is_null($aGroupByExpr))
{
foreach($aGroupByExpr as $sAlias => $oExpr)
{
$sRawId .= 'g:'.$sAlias.'!'.$oExpr->Render();
}
}
$sRawId .= $bGetCount;
$sOqlId = md5($sRawId);
}
else
{
$sOqlQuery = "SELECTING... ".$oSearch->GetClass();
$sOqlId = "query id ? n/a";
}
// Query caching
//
if (self::$m_bQueryCacheEnabled)
{
// Warning: using directly the query string as the key to the hash array can FAIL if the string
// is long and the differences are only near the end... so it's safer (but not bullet proof?)
// to use a hash (like md5) of the string as the key !
//
// Example of two queries that were found as similar by the hash array:
// SELECT SLT JOIN lnkSLTToSLA AS L1 ON L1.slt_id=SLT.id JOIN SLA ON L1.sla_id = SLA.id JOIN lnkContractToSLA AS L2 ON L2.sla_id = SLA.id JOIN CustomerContract ON L2.contract_id = CustomerContract.id WHERE SLT.ticket_priority = 1 AND SLA.service_id = 3 AND SLT.metric = 'TTO' AND CustomerContract.customer_id = 2
// and
// SELECT SLT JOIN lnkSLTToSLA AS L1 ON L1.slt_id=SLT.id JOIN SLA ON L1.sla_id = SLA.id JOIN lnkContractToSLA AS L2 ON L2.sla_id = SLA.id JOIN CustomerContract ON L2.contract_id = CustomerContract.id WHERE SLT.ticket_priority = 1 AND SLA.service_id = 3 AND SLT.metric = 'TTR' AND CustomerContract.customer_id = 2
// the only difference is R instead or O at position 285 (TTR instead of TTO)...
//
if (array_key_exists($sOqlId, self::$m_aQueryStructCache))
{
// hit!
$oSQLQuery = unserialize(serialize(self::$m_aQueryStructCache[$sOqlId]));
// Note: cloning is not enough because the subtree is made of objects
}
elseif (self::$m_bUseAPCCache)
{
// Note: For versions of APC older than 3.0.17, fetch() accepts only one parameter
//
$sOqlAPCCacheId = 'itop-'.MetaModel::GetEnvironmentId().'-query-cache-'.$sOqlId;
$oKPI = new ExecutionKPI();
$result = apc_fetch($sOqlAPCCacheId);
$oKPI->ComputeStats('Query APC (fetch)', $sOqlQuery);
if (is_object($result))
{
$oSQLQuery = $result;
self::$m_aQueryStructCache[$sOqlId] = $oSQLQuery;
}
}
}
if (!isset($oSQLQuery))
{
$oKPI = new ExecutionKPI();
$oSQLQuery = $oSearch->MakeSQLQuery($aAttToLoad, $bGetCount, $aModifierProperties, $aGroupByExpr);
$oSQLQuery->SetSourceOQL($sOqlQuery);
$oKPI->ComputeStats('MakeSQLQuery', $sOqlQuery);
if (self::$m_bQueryCacheEnabled)
{
if (self::$m_bUseAPCCache)
{
$oKPI = new ExecutionKPI();
apc_store($sOqlAPCCacheId, $oSQLQuery, self::$m_iQueryCacheTTL);
$oKPI->ComputeStats('Query APC (store)', $sOqlQuery);
}
self::$m_aQueryStructCache[$sOqlId] = $oSQLQuery->DeepClone();
}
}
// Join to an additional table, if required...
//
if ($aExtendedDataSpec != null)
{
$sTableAlias = '_extended_data_';
$aExtendedFields = array();
foreach($aExtendedDataSpec['fields'] as $sColumn)
{
$sColRef = $oSearch->GetClassAlias().'_extdata_'.$sColumn;
$aExtendedFields[$sColRef] = new FieldExpressionResolved($sColumn, $sTableAlias);
}
$oSQLQueryExt = new SQLObjectQuery($aExtendedDataSpec['table'], $sTableAlias, $aExtendedFields);
$oSQLQuery->AddInnerJoin($oSQLQueryExt, 'id', $aExtendedDataSpec['join_key'] /*, $sTableAlias*/);
}
return $oSQLQuery;
}
////////////////////////////////////////////////////////////////////////////
//
// Cache/Trace/Log queries
//
////////////////////////////////////////////////////////////////////////////
protected static $m_bDebugQuery = false;
protected static $m_aQueriesLog = array();
protected static $m_bQueryCacheEnabled = false;
protected static $m_bUseAPCCache = false;
protected static $m_iQueryCacheTTL = 3600;
protected static $m_bTraceQueries = false;
protected static $m_bIndentQueries = false;
protected static $m_bOptimizeQueries = false;
public static function StartDebugQuery()
{
$aBacktrace = debug_backtrace();
self::$m_bDebugQuery = true;
}
public static function StopDebugQuery()
{
self::$m_bDebugQuery = false;
}
public static function EnableQueryCache($bEnabled, $bUseAPC, $iTimeToLive = 3600)
{
self::$m_bQueryCacheEnabled = $bEnabled;
self::$m_bUseAPCCache = $bUseAPC;
self::$m_iQueryCacheTTL = $iTimeToLive;
}
public static function EnableQueryTrace($bEnabled)
{
self::$m_bTraceQueries = $bEnabled;
}
public static function EnableQueryIndentation($bEnabled)
{
self::$m_bIndentQueries = $bEnabled;
}
public static function EnableOptimizeQuery($bEnabled)
{
self::$m_bOptimizeQueries = $bEnabled;
}
protected function AddQueryTraceSelect($aOrderBy, $aArgs, $aAttToLoad, $aExtendedDataSpec, $iLimitCount, $iLimitStart, $bGetCount, $sSql)
{
if (self::$m_bTraceQueries)
{
$aQueryData = array(
'type' => 'select',
'filter' => $this,
'order_by' => $aOrderBy,
'args' => $aArgs,
'att_to_load' => $aAttToLoad,
'extended_data_spec' => $aExtendedDataSpec,
'limit_count' => $iLimitCount,
'limit_start' => $iLimitStart,
'is_count' => $bGetCount
);
$sOql = $this->ToOQL(true, $aArgs);
self::AddQueryTrace($aQueryData, $sOql, $sSql);
}
}
protected function AddQueryTraceGroupBy($aArgs, $aGroupByExpr, $sSql)
{
if (self::$m_bTraceQueries)
{
$aQueryData = array(
'type' => 'group_by',
'filter' => $this,
'args' => $aArgs,
'group_by_expr' => $aGroupByExpr
);
$sOql = $this->ToOQL(true, $aArgs);
self::AddQueryTrace($aQueryData, $sOql, $sSql);
}
}
protected static function AddQueryTrace($aQueryData, $sOql, $sSql)
{
if (self::$m_bTraceQueries)
{
$sQueryId = md5(serialize($aQueryData));
$sMySQLQueryId = md5($sSql);
if(!isset(self::$m_aQueriesLog[$sQueryId]))
{
self::$m_aQueriesLog[$sQueryId]['data'] = serialize($aQueryData);
self::$m_aQueriesLog[$sQueryId]['oql'] = $sOql;
self::$m_aQueriesLog[$sQueryId]['hits'] = 1;
}
else
{
self::$m_aQueriesLog[$sQueryId]['hits']++;
}
if(!isset(self::$m_aQueriesLog[$sQueryId]['queries'][$sMySQLQueryId]))
{
self::$m_aQueriesLog[$sQueryId]['queries'][$sMySQLQueryId]['sql'] = $sSql;
self::$m_aQueriesLog[$sQueryId]['queries'][$sMySQLQueryId]['count'] = 1;
$iTableCount = count(CMDBSource::ExplainQuery($sSql));
self::$m_aQueriesLog[$sQueryId]['queries'][$sMySQLQueryId]['table_count'] = $iTableCount;
}
else
{
self::$m_aQueriesLog[$sQueryId]['queries'][$sMySQLQueryId]['count']++;
}
}
}
public static function RecordQueryTrace()
{
if (!self::$m_bTraceQueries) return;
$iOqlCount = count(self::$m_aQueriesLog);
$iSqlCount = 0;
foreach (self::$m_aQueriesLog as $sQueryId => $aOqlData)
{
$iSqlCount += $aOqlData['hits'];
}
$sHtml = "<h2>Stats on SELECT queries: OQL=$iOqlCount, SQL=$iSqlCount</h2>\n";
foreach (self::$m_aQueriesLog as $sQueryId => $aOqlData)
{
$sOql = $aOqlData['oql'];
$sHits = $aOqlData['hits'];
$sHtml .= "<p><b>$sHits</b> hits for OQL query: $sOql</p>\n";
$sHtml .= "<ul id=\"ClassesRelationships\" class=\"treeview\">\n";
foreach($aOqlData['queries'] as $aSqlData)
{
$sQuery = $aSqlData['sql'];
$sSqlHits = $aSqlData['count'];
$iTableCount = $aSqlData['table_count'];
$sHtml .= "<li><b>$sSqlHits</b> hits for SQL ($iTableCount tables): <pre style=\"font-size:60%\">$sQuery</pre></li>\n";
}
$sHtml .= "</ul>\n";
}
$sLogFile = 'queries.latest';
file_put_contents(APPROOT.'data/'.$sLogFile.'.html', $sHtml);
$sLog = "<?php\n\$aQueriesLog = ".var_export(self::$m_aQueriesLog, true).";";
file_put_contents(APPROOT.'data/'.$sLogFile.'.log', $sLog);
// Cumulate the queries
$sAllQueries = APPROOT.'data/queries.log';
if (file_exists($sAllQueries))
{
// Merge the new queries into the existing log
include($sAllQueries);
foreach (self::$m_aQueriesLog as $sQueryId => $aOqlData)
{
if (!array_key_exists($sQueryId, $aQueriesLog))
{
$aQueriesLog[$sQueryId] = $aOqlData;
}
}
}
else
{
$aQueriesLog = self::$m_aQueriesLog;
}
$sLog = "<?php\n\$aQueriesLog = ".var_export($aQueriesLog, true).";";
file_put_contents($sAllQueries, $sLog);
}
protected static function DbgTrace($value)
{
if (!self::$m_bDebugQuery) return;
$aBacktrace = debug_backtrace();
$iCallStackPos = count($aBacktrace) - self::$m_bDebugQuery;
$sIndent = "";
for ($i = 0 ; $i < $iCallStackPos ; $i++)
{
$sIndent .= " .-=^=-. ";
}
$aCallers = array();
foreach($aBacktrace as $aStackInfo)
{
$aCallers[] = $aStackInfo["function"];
}
$sCallers = "Callstack: ".implode(', ', $aCallers);
$sFunction = "<b title=\"$sCallers\">".$aBacktrace[1]["function"]."</b>";
if (is_string($value))
{
echo "$sIndent$sFunction: $value<br/>\n";
}
else if (is_object($value))
{
echo "$sIndent$sFunction:\n<pre>\n";
print_r($value);
echo "</pre>\n";
}
else
{
echo "$sIndent$sFunction: $value<br/>\n";
}
}
}