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Dashboard: optimized group by (done by MySQL) + proto of a group by on 2 dimensions

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SVN:trunk[2041]
This commit is contained in:
Romain Quetiez
2012-05-25 16:04:18 +00:00
parent 2c00c115d6
commit e4c113e412
6 changed files with 452 additions and 138 deletions
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61
core/sqlquery.class.inc.php
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@@ -41,6 +41,7 @@ class SQLQuery
private $m_sTable = '';
private $m_sTableAlias = '';
private $m_aFields = array();
private $m_aGroupBy = array();
private $m_oConditionExpr = null;
private $m_bToDelete = true; // The current table must be listed for deletion ?
private $m_aValues = array(); // Values to set in case of an update query
@@ -62,6 +63,7 @@ class SQLQuery
$this->m_sTable = $sTable;
$this->m_sTableAlias = $sTableAlias;
$this->m_aFields = $aFields;
$this->m_aGroupBy = null;
$this->m_oConditionExpr = null;
$this->m_bToDelete = $bToDelete;
$this->m_aValues = $aValues;
@@ -125,11 +127,12 @@ class SQLQuery
}
$aFrom = array();
$aFields = array();
$aGroupBy = array();
$oCondition = null;
$aDelTables = array();
$aSetValues = array();
$aSelectedIdFields = array();
$this->privRender($aFrom, $aFields, $oCondition, $aDelTables, $aSetValues, $aSelectedIdFields);
$this->privRender($aFrom, $aFields, $aGroupBy, $oCondition, $aDelTables, $aSetValues, $aSelectedIdFields);
echo "From ...<br/>\n";
echo "<pre style=\"font-size: smaller;\">\n";
print_r($aFrom);
@@ -141,6 +144,11 @@ class SQLQuery
$this->m_aFields = $aExpressions;
}
public function SetGroupBy($aExpressions)
{
$this->m_aGroupBy = $aExpressions;
}
public function SetCondition($oConditionExpr)
{
$this->m_oConditionExpr = $oConditionExpr;
@@ -235,11 +243,12 @@ class SQLQuery
// The goal will be to complete the list as we build the Joins
$aFrom = array();
$aFields = array();
$aGroupBy = arry();
$oCondition = null;
$aDelTables = array();
$aSetValues = array();
$aSelectedIdFields = array();
$this->privRender($aFrom, $aFields, $oCondition, $aDelTables, $aSetValues, $aSelectedIdFields);
$this->privRender($aFrom, $aFields, $aGroupBy, $oCondition, $aDelTables, $aSetValues, $aSelectedIdFields);
// Target: DELETE myAlias1, myAlias2 FROM t1 as myAlias1, t2 as myAlias2, t3 as topreserve WHERE ...
@@ -270,11 +279,12 @@ class SQLQuery
// The goal will be to complete the list as we build the Joins
$aFrom = array();
$aFields = array();
$aGroupBy = array();
$oCondition = null;
$aDelTables = array();
$aSetValues = array();
$aSelectedIdFields = array();
$this->privRender($aFrom, $aFields, $oCondition, $aDelTables, $aSetValues, $aSelectedIdFields);
$this->privRender($aFrom, $aFields, $aGroupBy, $oCondition, $aDelTables, $aSetValues, $aSelectedIdFields);
$sFrom = self::ClauseFrom($aFrom);
$sValues = self::ClauseValues($aSetValues);
$sWhere = self::ClauseWhere($oCondition, $aArgs);
@@ -287,11 +297,12 @@ class SQLQuery
// The goal will be to complete the lists as we build the Joins
$aFrom = array();
$aFields = array();
$aGroupBy = array();
$oCondition = null;
$aDelTables = array();
$aSetValues = array();
$aSelectedIdFields = array();
$this->privRender($aFrom, $aFields, $oCondition, $aDelTables, $aSetValues, $aSelectedIdFields);
$this->privRender($aFrom, $aFields, $aGroupBy, $oCondition, $aDelTables, $aSetValues, $aSelectedIdFields);
$sFrom = self::ClauseFrom($aFrom);
$sWhere = self::ClauseWhere($oCondition, $aArgs);
@@ -328,6 +339,27 @@ class SQLQuery
return $sSQL;
}
// Interface, build the SQL query
public function RenderGroupBy($aArgs = array())
{
// The goal will be to complete the lists as we build the Joins
$aFrom = array();
$aFields = array();
$aGroupBy = array();
$oCondition = null;
$aDelTables = array();
$aSetValues = array();
$aSelectedIdFields = array();
$this->privRender($aFrom, $aFields, $aGroupBy, $oCondition, $aDelTables, $aSetValues, $aSelectedIdFields);
$sSelect = self::ClauseSelect($aFields);
$sFrom = self::ClauseFrom($aFrom);
$sWhere = self::ClauseWhere($oCondition, $aArgs);
$sGroupBy = self::ClauseGroupBy($aGroupBy);
$sSQL = "SELECT $sSelect, COUNT(*) AS _itop_count_ FROM $sFrom WHERE $sWhere GROUP BY $sGroupBy";
return $sSQL;
}
private static function ClauseSelect($aFields)
{
$aSelect = array();
@@ -339,6 +371,12 @@ class SQLQuery
return $sSelect;
}
private static function ClauseGroupBy($aGroupBy)
{
$sRes = implode(', ', $aGroupBy);
return $sRes;
}
private static function ClauseDelete($aDelTableAliases)
{
$aDelTables = array();
@@ -415,14 +453,14 @@ class SQLQuery
}
// Purpose: prepare the query data, once for all
private function privRender(&$aFrom, &$aFields, &$oCondition, &$aDelTables, &$aSetValues, &$aSelectedIdFields)
private function privRender(&$aFrom, &$aFields, &$aGroupBy, &$oCondition, &$aDelTables, &$aSetValues, &$aSelectedIdFields)
{
$sTableAlias = $this->privRenderSingleTable($aFrom, $aFields, $aDelTables, $aSetValues, $aSelectedIdFields, '', array('jointype' => 'first'));
$sTableAlias = $this->privRenderSingleTable($aFrom, $aFields, $aGroupBy, $aDelTables, $aSetValues, $aSelectedIdFields, '', array('jointype' => 'first'));
$oCondition = $this->m_oConditionExpr;
return $sTableAlias;
}
private function privRenderSingleTable(&$aFrom, &$aFields, &$aDelTables, &$aSetValues, &$aSelectedIdFields, $sCallerAlias = '', $aJoinData)
private function privRenderSingleTable(&$aFrom, &$aFields, &$aGroupBy, &$aDelTables, &$aSetValues, &$aSelectedIdFields, $sCallerAlias = '', $aJoinData)
{
$aActualTableFields = CMDBSource::GetTableFieldsList($this->m_sTable);
@@ -506,6 +544,13 @@ class SQLQuery
{
$aFields["`$sAlias`"] = $oExpression->Render();
}
if ($this->m_aGroupBy)
{
foreach($this->m_aGroupBy as $sAlias => $oExpression)
{
$aGroupBy["`$sAlias`"] = $oExpression->Render();
}
}
if ($this->m_bToDelete)
{
$aDelTables[] = "`{$this->m_sTableAlias}`";
@@ -528,7 +573,7 @@ class SQLQuery
{
$oRightSelect = $aJoinData["select"];
$sJoinTableAlias = $oRightSelect->privRenderSingleTable($aTempFrom, $aFields, $aDelTables, $aSetValues, $aSelectedIdFields, $this->m_sTableAlias, $aJoinData);
$sJoinTableAlias = $oRightSelect->privRenderSingleTable($aTempFrom, $aFields, $aGroupBy, $aDelTables, $aSetValues, $aSelectedIdFields, $this->m_sTableAlias, $aJoinData);
}
$aFrom[$this->m_sTableAlias]['subfrom'] = $aTempFrom;