protected function AppendConstant(QueryBuilder $QueryBuilder, CoreE\ConstantExpression $Expression)
{
$QueryBuilder->AppendSingleValue($Expression->GetValue());
}
public final function AppendDataAsInlineTable(QueryBuilder $QueryBuilder, array $Columns, $DerivedTableName, array $ColumnDataArray)
{
$QueryBuilder->Append(' SELECT ');
/*
* Apply all the persisting data expressions as a select on the inline table
* rather than on every row
*/
foreach ($QueryBuilder->Delimit($Columns, ', ') as $ColumnName => $Column) {
$QueryBuilder->AppendExpression(Expression::PersistData($Column, Expression::Identifier([$DerivedTableName, $ColumnName])));
}
$QueryBuilder->Append(' FROM (');
$ColumnDataArray = array_map(function (Relational\ColumnData $ColumnData) {
return $ColumnData->GetData();
}, $ColumnDataArray);
$ColumnNames = array_map(function ($Column) {
return $Column->GetName();
}, $Columns);
$Identifiers = array_combine($ColumnNames, array_map(function ($Column) {
return $Column->GetIdentifier();
}, $Columns));
$ParameterTypes = $this->GetParamterTypes($Columns);
$First = true;
$QueryBuilder->Append('SELECT ');
foreach ($QueryBuilder->Delimit($ColumnDataArray, ' UNION ALL SELECT ') as $ColumnData) {
$FirstValue = true;
foreach ($Identifiers as $ColumnName => $Identifier) {
if ($FirstValue) {
$FirstValue = false;
} else {
$QueryBuilder->Append(',');
}
$Value = isset($ColumnData[$Identifier]) ? $ColumnData[$Identifier] : null;
$QueryBuilder->AppendSingleValue($Value, $Value === null ? ParameterType::Null : $ParameterTypes[$ColumnName]);
if ($First) {
$QueryBuilder->AppendIdentifier(' AS #', [$ColumnName]);
}
}
$First = false;
}
$QueryBuilder->AppendIdentifier(') #', [$DerivedTableName]);
}