/**
* Adds the context parameters to the audit query
*/
function FilterByContext(DBSearch &$oFilter, ApplicationContext $oAppContext)
{
$sObjClass = $oFilter->GetClass();
$aContextParams = $oAppContext->GetNames();
$aCallSpec = array($sObjClass, 'MapContextParam');
if (is_callable($aCallSpec)) {
foreach ($aContextParams as $sParamName) {
$sValue = $oAppContext->GetCurrentValue($sParamName, null);
if ($sValue != null) {
$sAttCode = call_user_func($aCallSpec, $sParamName);
// Returns null when there is no mapping for this parameter
if ($sAttCode != null && MetaModel::IsValidAttCode($sObjClass, $sAttCode)) {
// Check if the condition points to a hierarchical key
if ($sAttCode == 'id') {
// Filtering on the objects themselves
$sHierarchicalKeyCode = MetaModel::IsHierarchicalClass($sObjClass);
if ($sHierarchicalKeyCode !== false) {
$oRootFilter = new DBObjectSearch($sObjClass);
$oRootFilter->AddCondition($sAttCode, $sValue);
$oFilter->AddCondition_PointingTo($oRootFilter, $sHierarchicalKeyCode, TREE_OPERATOR_BELOW);
// Use the 'below' operator by default
$bConditionAdded = true;
}
} else {
$oAttDef = MetaModel::GetAttributeDef($sObjClass, $sAttCode);
$bConditionAdded = false;
if ($oAttDef->IsExternalKey()) {
$sHierarchicalKeyCode = MetaModel::IsHierarchicalClass($oAttDef->GetTargetClass());
if ($sHierarchicalKeyCode !== false) {
$oRootFilter = new DBObjectSearch($oAttDef->GetTargetClass());
$oRootFilter->AddCondition('id', $sValue);
$oHKFilter = new DBObjectSearch($oAttDef->GetTargetClass());
$oHKFilter->AddCondition_PointingTo($oRootFilter, $sHierarchicalKeyCode, TREE_OPERATOR_BELOW);
// Use the 'below' operator by default
$oFilter->AddCondition_PointingTo($oHKFilter, $sAttCode);
$bConditionAdded = true;
}
}
}
if (!$bConditionAdded) {
$oFilter->AddCondition($sAttCode, $sValue);
}
}
}
}
}
}
/**
* Create a new DBObjectSearch from $oSearch with a new alias $sAlias
*
* Note : This has not be tested with UNION queries.
*
* @param DBSearch $oSearch
* @param string $sAlias
* @return DBObjectSearch
*/
public static function CloneWithAlias(DBSearch $oSearch, $sAlias)
{
$oSearchWithAlias = new DBObjectSearch($oSearch->GetClass(), $sAlias);
$oSearchWithAlias = $oSearchWithAlias->Intersect($oSearch);
return $oSearchWithAlias;
}
protected function AddCondition_ReferencedBy_InNameSpace(DBSearch $oFilter, $sForeignExtKeyAttCode, &$aClassAliases, &$aAliasTranslation)
{
$sForeignClass = $oFilter->GetClass();
// Find the node on which the new tree must be attached (most of the time it is "this")
$oReceivingFilter = $this->GetNode($this->GetClassAlias());
if (array_key_exists($sForeignClass, $this->m_aReferencedBy) && array_key_exists($sForeignExtKeyAttCode, $this->m_aReferencedBy[$sForeignClass])) {
$oReceivingFilter->m_aReferencedBy[$sForeignClass][$sForeignExtKeyAttCode]->MergeWith_InNamespace($oFilter, $aClassAliases, $aAliasTranslation);
} else {
$oFilter->AddToNamespace($aClassAliases, $aAliasTranslation);
// #@# The condition expression found in that filter should not be used - could be another kind of structure like a join spec tree !!!!
//$oNewFilter = $oFilter->DeepClone();
//$oNewFilter->ResetCondition();
$oReceivingFilter->m_aReferencedBy[$sForeignClass][$sForeignExtKeyAttCode] = $oFilter;
}
}
/**
* Initializes the default search parameters based on 1) a 'current' object and 2) the silos defined by the context
* @param DBObject $oSourceObj
* @param DBSearch $oSearch
*/
protected function SetSearchDefaultFromContext($oSourceObj, &$oSearch)
{
$oAppContext = new ApplicationContext();
$sSrcClass = get_class($oSourceObj);
$sDestClass = $oSearch->GetClass();
foreach ($oAppContext->GetNames() as $key) {
// Find the value of the object corresponding to each 'context' parameter
$aCallSpec = array($sSrcClass, 'MapContextParam');
$sAttCode = '';
if (is_callable($aCallSpec)) {
$sAttCode = call_user_func($aCallSpec, $key);
// Returns null when there is no mapping for this parameter
}
if (MetaModel::IsValidAttCode($sSrcClass, $sAttCode)) {
$oAttDef = MetaModel::GetAttributeDef($sSrcClass, $sAttCode);
$defaultValue = $oSourceObj->Get($sAttCode);
// Find the attcode for the same 'context' parameter in the destination class
// and sets its value as the default value for the search condition
$aCallSpec = array($sDestClass, 'MapContextParam');
$sAttCode = '';
if (is_callable($aCallSpec)) {
$sAttCode = call_user_func($aCallSpec, $key);
// Returns null when there is no mapping for this parameter
}
if (MetaModel::IsValidAttCode($sDestClass, $sAttCode) && !empty($defaultValue)) {
$oSearch->AddCondition($sAttCode, $defaultValue);
}
}
}
}
