N°2272 - OQL performance (OQL class tree wip)

2026-04-19 16:48:42 +02:00 · 2019-09-13 17:20:03 +02:00
parent 128afc8a56
commit 93a736e42a
7 changed files with 557 additions and 4 deletions
--- a/core/oqlclassnode.class.inc.php
+++ b/core/oqlclassnode.class.inc.php
@@ -0,0 +1,164 @@
+<?php
+/**
+ * @copyright   Copyright (C) 2010-2019 Combodo SARL
+ * @license     http://opensource.org/licenses/AGPL-3.0
+ */
+
+
+class OQLClassNode
+{
+	private $sClass;
+	private $sClassAlias;
+	/** @var OQLJoin[] */
+	private $aJoins;
+	private $aExtKeys;
+
+	/**
+	 * OQLClassNode constructor.
+	 *
+	 * @param string $sClass
+	 * @param string $sClassAlias
+	 */
+	public function __construct($sClass, $sClassAlias)
+	{
+		$this->sClass = $sClass;
+		$this->sClassAlias = $sClassAlias;
+		$this->aJoins = array();
+		$this->aExtKeys = array();
+	}
+
+	public function AddExternalKey($sKeyAttCode)
+	{
+		if (!isset($this->aExtKeys[$sKeyAttCode]))
+		{
+			$this->aExtKeys[$sKeyAttCode] = array();
+		}
+	}
+
+	public function AddExternalField($sKeyAttCode, $sFieldAttCode, $oAttDef)
+	{
+		$this->AddExternalKey($sKeyAttCode);
+		$this->aExtKeys[$sKeyAttCode][$sFieldAttCode] = $oAttDef;
+	}
+
+
+	public function AddInnerJoin($oOQLClassNode, $sLeftField, $sRightField)
+	{
+		$this->AddJoin(OQLJoin::JOIN_INNER, $oOQLClassNode, $sLeftField, $sRightField);
+	}
+
+	public function AddLeftJoin($oOQLClassNode, $sLeftField, $sRightField)
+	{
+		$this->AddJoin(OQLJoin::JOIN_LEFT, $oOQLClassNode, $sLeftField, $sRightField);
+	}
+	
+	public function AddInnerJoinTree($oOQLClassNode, $sLeftField, $sRightField, $iOperatorCode = TREE_OPERATOR_BELOW, $bInvertOnClause = false)
+	{
+		$this->AddJoin(OQLJoin::JOIN_INNER_TREE, $oOQLClassNode, $sLeftField, $sRightField, $iOperatorCode, $bInvertOnClause);
+	}
+
+	private function AddJoin($sJoinType, $oOQLClassNode, $sLeftField, $sRightField, $sTreeOperator = null, $bInvertOnClause = false)
+	{
+		$oOQLJoin = new OQLJoin($sJoinType, $oOQLClassNode, $sLeftField, $sRightField, $sTreeOperator, $bInvertOnClause);
+		$this->aJoins[] = $oOQLJoin;
+		return $oOQLJoin;
+	}
+
+	public function DisplayHtml()
+	{
+	}
+
+	public function RenderDebug()
+	{
+		$sOQL = "SELECT `{$this->sClassAlias}` FROM `{$this->sClass}` AS `{$this->sClassAlias}`";
+		foreach ($this->aJoins as $oJoin)
+		{
+			$sOQL .= "{$oJoin->RenderDebug($this->sClassAlias)}";
+		}
+
+
+		return $sOQL;
+	}
+
+	public function GetExternalKeys()
+	{
+		return $this->aExtKeys;
+	}
+
+	public function HasExternalKey($sAttCode)
+	{
+		return array_key_exists($sAttCode, $this->aExtKeys);
+	}
+
+	public function GetExternalKey($sAttCode)
+	{
+		return $this->aExtKeys[$sAttCode];
+	}
+
+	public function GetClass()
+	{
+		return $this->sClass;
+	}
+
+	public function GetClassAlias()
+	{
+		return $this->sClassAlias;
+	}
+
+	public function GetJoins()
+	{
+		return $this->aJoins;
+	}
+
+}
+
+class OQLJoin
+{
+	const JOIN_INNER = 'inner';
+	const JOIN_LEFT = 'left';
+	const JOIN_INNER_TREE = 'inner_tree';
+	
+	private $sJoinType;
+	/** @var \OQLClassNode */
+	private $oOQLClassNode;
+	private $sLeftField;
+	private $sRightField;
+	private $sTreeOperator;
+	private $bInvertOnClause;
+
+	/**
+	 * OQLJoin constructor.
+	 *
+	 * @param $sJoinType
+	 * @param $oOQLClassNode
+	 * @param $sLeftField
+	 * @param $sRightField
+	 * @param string $sTreeOperator
+	 * @param bool $bInvertOnClause
+	 */
+	public function __construct($sJoinType, $oOQLClassNode, $sLeftField, $sRightField, $sTreeOperator = null, $bInvertOnClause = false)
+	{
+		$this->sJoinType = $sJoinType;
+		$this->oOQLClassNode = $oOQLClassNode;
+		$this->sLeftField = $sLeftField;
+		$this->sRightField = $sRightField;
+		$this->sTreeOperator = $sTreeOperator;
+		$this->bInvertOnClause = $bInvertOnClause;
+	}
+
+	public function RenderDebug($sClassAlias, $sPrefix = "    ")
+	{
+		$sType = strtoupper($this->sJoinType);
+		$sOQL = "\n{$sPrefix}{$sType} JOIN `{$this->oOQLClassNode->GetClass()}` AS `{$this->oOQLClassNode->GetClassAlias()}`";
+		//$sOQL = str_pad($sOQL, 100);
+		$sOQL .= "\n{$sPrefix}  ON `{$sClassAlias}`.`{$this->sLeftField}` = `{$this->oOQLClassNode->GetClassAlias()}`.`{$this->sRightField}`";
+		$sPrefix .= "    ";
+		foreach ($this->oOQLClassNode->GetJoins() as $oJoin)
+		{
+			$sOQL .= " {$oJoin->RenderDebug($this->oOQLClassNode->GetClassAlias(), $sPrefix)}";
+		}
+
+		return $sOQL;
+	}
+
+}