PHP DBObjectSearch::GetCriteria_PointingTo方法代码示例

 private static function MakeQuery(&$oBuild, DBObjectSearch $oFilter, $aAttToLoad = null, $aValues = array(), $bIsMainQueryUNUSED = false)
 {
     // Note: query class might be different than the class of the filter
     // -> this occurs when we are linking our class to an external class (referenced by, or pointing to)
     $sClass = $oFilter->GetFirstJoinedClass();
     $sClassAlias = $oFilter->GetFirstJoinedClassAlias();
     $bIsOnQueriedClass = array_key_exists($sClassAlias, $oBuild->GetRootFilter()->GetSelectedClasses());
     self::DbgTrace("Entering: " . $oFilter->ToOQL() . ", " . ($bIsOnQueriedClass ? "MAIN" : "SECONDARY"));
     $sRootClass = self::GetRootClass($sClass);
     $sKeyField = self::DBGetKey($sClass);
     if ($bIsOnQueriedClass) {
         // default to the whole list of attributes + the very std id/finalclass
         $oBuild->m_oQBExpressions->AddSelect($sClassAlias . 'id', new FieldExpression('id', $sClassAlias));
         if (is_null($aAttToLoad) || !array_key_exists($sClassAlias, $aAttToLoad)) {
             $aAttList = self::ListAttributeDefs($sClass);
         } else {
             $aAttList = $aAttToLoad[$sClassAlias];
         }
         foreach ($aAttList as $sAttCode => $oAttDef) {
             if (!$oAttDef->IsScalar()) {
                 continue;
             }
             // keep because it can be used for sorting - if (!$oAttDef->LoadInObject()) continue;
             foreach ($oAttDef->GetSQLExpressions() as $sColId => $sSQLExpr) {
                 $oBuild->m_oQBExpressions->AddSelect($sClassAlias . $sAttCode . $sColId, new FieldExpression($sAttCode . $sColId, $sClassAlias));
             }
         }
         // Transform the full text condition into additional condition expression
         $aFullText = $oFilter->GetCriteria_FullText();
         if (count($aFullText) > 0) {
             $aFullTextFields = array();
             foreach (self::ListAttributeDefs($sClass) as $sAttCode => $oAttDef) {
                 if (!$oAttDef->IsScalar()) {
                     continue;
                 }
                 if ($oAttDef->IsExternalKey()) {
                     continue;
                 }
                 $aFullTextFields[] = new FieldExpression($sAttCode, $sClassAlias);
             }
             $oTextFields = new CharConcatWSExpression(' ', $aFullTextFields);
             foreach ($aFullText as $sFTNeedle) {
                 $oNewCond = new BinaryExpression($oTextFields, 'LIKE', new ScalarExpression("%{$sFTNeedle}%"));
                 $oBuild->m_oQBExpressions->AddCondition($oNewCond);
             }
         }
     }
     //echo "<p>oQBExpr ".__LINE__.": <pre>\n".print_r($oBuild->m_oQBExpressions, true)."</pre></p>\n";
     $aExpectedAtts = array();
     // array of (attcode => fieldexpression)
     //echo "<p>".__LINE__.": GetUnresolvedFields($sClassAlias, ...)</p>\n";
     $oBuild->m_oQBExpressions->GetUnresolvedFields($sClassAlias, $aExpectedAtts);
     // Compute a clear view of required joins (from the current class)
     // Build the list of external keys:
     // -> ext keys required by an explicit join
     // -> ext keys mentionned in a 'pointing to' condition
     // -> ext keys required for an external field
     // -> ext keys required for a friendly name
     //
     $aExtKeys = array();
     // array of sTableClass => array of (sAttCode (keys) => array of (sAttCode (fields)=> oAttDef))
     //
     // Optimization: could be partially computed once for all (cached) ?
     //
     if ($bIsOnQueriedClass) {
         // Get all Ext keys for the queried class (??)
         foreach (self::GetKeysList($sClass) as $sKeyAttCode) {
             $sKeyTableClass = self::$m_aAttribOrigins[$sClass][$sKeyAttCode];
             $aExtKeys[$sKeyTableClass][$sKeyAttCode] = array();
         }
     }
     // Get all Ext keys used by the filter
     foreach ($oFilter->GetCriteria_PointingTo() as $sKeyAttCode => $aPointingTo) {
         if (array_key_exists(TREE_OPERATOR_EQUALS, $aPointingTo)) {
             $sKeyTableClass = self::$m_aAttribOrigins[$sClass][$sKeyAttCode];
             $aExtKeys[$sKeyTableClass][$sKeyAttCode] = array();
         }
     }
     $aFNJoinAlias = array();
     // array of (subclass => alias)
     if (array_key_exists('friendlyname', $aExpectedAtts)) {
         // To optimize: detect a restriction on child classes in the condition expression
         //    e.g. SELECT FunctionalCI WHERE finalclass IN ('Server', 'VirtualMachine')
         $oNameExpression = self::GetExtendedNameExpression($sClass);
         $aNameFields = array();
         $oNameExpression->GetUnresolvedFields('', $aNameFields);
         $aTranslateNameFields = array();
         foreach ($aNameFields as $sSubClass => $aFields) {
             foreach ($aFields as $sAttCode => $oField) {
                 $oAttDef = self::GetAttributeDef($sSubClass, $sAttCode);
                 if ($oAttDef->IsExternalKey()) {
                     $sClassOfAttribute = self::$m_aAttribOrigins[$sSubClass][$sAttCode];
                     $aExtKeys[$sClassOfAttribute][$sAttCode] = array();
                 } elseif ($oAttDef->IsExternalField() || $oAttDef instanceof AttributeFriendlyName) {
                     $sKeyAttCode = $oAttDef->GetKeyAttCode();
                     $sClassOfAttribute = self::$m_aAttribOrigins[$sSubClass][$sKeyAttCode];
                     $aExtKeys[$sClassOfAttribute][$sKeyAttCode][$sAttCode] = $oAttDef;
                 } else {
                     $sClassOfAttribute = self::GetAttributeOrigin($sSubClass, $sAttCode);
                 }
//.........这里部分代码省略.........