/**
* Internally called method to assist with early binding of objects
* on load methods. Can only early-bind references that this class owns in the database.
* @param string $strParentAlias the alias of the parent (if any)
* @param string $strAlias the alias of this object
* @param array $objExpansionMap map of referenced columns to be immediately expanded via early-binding
* @param QueryExpansion an already instantiated QueryExpansion object (used as a utility object to assist with object expansion)
*/
public static function ExpandQuery($strParentAlias, $strAlias, $objExpansionMap, QQueryExpansion $objQueryExpansion)
{
if ($strAlias) {
$objQueryExpansion->AddFromItem(sprintf('LEFT JOIN `datagrid_column_preference` AS `%s__%s` ON `%s`.`%s` = `%s__%s`.`datagrid_column_preference_id`', $strParentAlias, $strAlias, $strParentAlias, $strAlias, $strParentAlias, $strAlias));
$objQueryExpansion->AddSelectItem(sprintf('`%s__%s`.`datagrid_column_preference_id` AS `%s__%s__datagrid_column_preference_id`', $strParentAlias, $strAlias, $strParentAlias, $strAlias));
$objQueryExpansion->AddSelectItem(sprintf('`%s__%s`.`datagrid_id` AS `%s__%s__datagrid_id`', $strParentAlias, $strAlias, $strParentAlias, $strAlias));
$objQueryExpansion->AddSelectItem(sprintf('`%s__%s`.`column_name` AS `%s__%s__column_name`', $strParentAlias, $strAlias, $strParentAlias, $strAlias));
$objQueryExpansion->AddSelectItem(sprintf('`%s__%s`.`user_account_id` AS `%s__%s__user_account_id`', $strParentAlias, $strAlias, $strParentAlias, $strAlias));
$objQueryExpansion->AddSelectItem(sprintf('`%s__%s`.`display_flag` AS `%s__%s__display_flag`', $strParentAlias, $strAlias, $strParentAlias, $strAlias));
$strParentAlias = $strParentAlias . '__' . $strAlias;
}
if (is_array($objExpansionMap)) {
foreach ($objExpansionMap as $strKey => $objValue) {
switch ($strKey) {
case 'datagrid_id':
try {
Datagrid::ExpandQuery($strParentAlias, $strKey, $objValue, $objQueryExpansion);
break;
} catch (QCallerException $objExc) {
$objExc->IncrementOffset();
throw $objExc;
}
case 'user_account_id':
try {
UserAccount::ExpandQuery($strParentAlias, $strKey, $objValue, $objQueryExpansion);
break;
} catch (QCallerException $objExc) {
$objExc->IncrementOffset();
throw $objExc;
}
default:
throw new QCallerException(sprintf('Unknown Object to Expand in %s: %s', $strParentAlias, $strKey));
}
}
}
}