| final public AppendIdentifier ( $QueryStringFormat, array $IdentifierSegments, $ValuePlaceholder = self::DefaultPlaceholder ) | ||
| $IdentifierSegments | array | |
private function AppendOnDuplicateKeyUpdate(QueryBuilder $QueryBuilder, $TableName, array $Columns, array $PrimaryKeyIdentifiers)
{
$QueryBuilder->Append(' ON DUPLICATE KEY UPDATE ');
$FirstPrimaryKey = true;
foreach ($QueryBuilder->Delimit($Columns, ',') as $ColumName => $Column) {
$ColumnIdentifier = [$TableName, $ColumName];
if ($FirstPrimaryKey && $Column->IsPrimaryKey()) {
/*
* Ugly fix/hack to prevent mysql from updating primary key when encountering
* a duplicate value on a seperate unique constraint. Sadly Mysql does not support
* the more robust 'MERGE' operation. Furthermore there is no clean way to throw a
* conditional runtime error in Mysql reliably.
*
* Example: Persisting a account entity with a unique username, if the user changes
* their username and and a duplicate username exists, mysql could attempt to update
* the other duplicate row with the new values/primary key. This should not be an
* issue as then it will fail with a duplicate primary key but could lead to some
* wacky edge cases that I want no part in.
*/
$QueryBuilder->AppendIdentifier('# = IF(', $ColumnIdentifier);
foreach ($QueryBuilder->Delimit($PrimaryKeyIdentifiers, ' AND ') as $PrimaryKeyIdentifier) {
$QueryBuilder->AppendIdentifier('# = VALUES(#)', $PrimaryKeyIdentifier);
}
$QueryBuilder->Append(',');
$QueryBuilder->AppendIdentifier('VALUES(#)', $ColumnIdentifier);
$QueryBuilder->Append(',');
$QueryBuilder->Append('(SELECT 1 UNION ALL SELECT 1))');
$FirstPrimaryKey = false;
} else {
$QueryBuilder->AppendIdentifier('# = VALUES(#)', $ColumnIdentifier);
}
}
}
protected function DeletePrimaryKeysQuery(QueryBuilder $QueryBuilder, Table $Table, array $PrimaryKeys)
{
$TableName = $Table->GetName();
$DerivedTableName = $TableName . 'PrimaryKeys';
$TransformedDerivedTableName = $TableName . 'PersistencePrimaryKeys';
$PrimaryKeysColumns = $Table->GetPrimaryKeyColumns();
$PrimaryKeyNames = array_keys($PrimaryKeysColumns);
$QueryBuilder->AppendIdentifier('DELETE # FROM # INNER JOIN (', [$TableName]);
$this->StandardPersister->AppendDataAsInlineTable($QueryBuilder, $PrimaryKeysColumns, $DerivedTableName, $PrimaryKeys);
$QueryBuilder->AppendIdentifier(') #', [$TransformedDerivedTableName]);
$QueryBuilder->Append(' ON ');
foreach ($QueryBuilder->Delimit($PrimaryKeyNames, ' AND ') as $PrimaryKeyName) {
$QueryBuilder->AppendIdentifier('# = ', [$TableName, $PrimaryKeyName]);
$QueryBuilder->AppendIdentifier('#', [$TransformedDerivedTableName, $PrimaryKeyName]);
}
}
protected function UpsertRowsQuery(QueryBuilder $QueryBuilder, Table $Table, array $Rows, $ShouldReturnKeyData)
{
if ($ShouldReturnKeyData) {
throw new \Storm\Drivers\Base\Relational\PlatformException('SQLite does not support returning data');
}
$Columns = $Table->GetColumns();
$PrimaryKeyColumns = $Table->GetPrimaryKeyColumns();
$ColumnNames = array_keys($Columns);
$PrimaryKeyColumnNames = array_keys($PrimaryKeyColumns);
$TableName = $Table->GetName();
$DerivedTableName = $TableName . 'Values';
$PrimaryKeyIdentifiers = [];
foreach ($PrimaryKeyColumnNames as $ColumnName) {
$PrimaryKeyIdentifiers[] = [$TableName, $ColumnName];
}
$QueryBuilder->AppendIdentifier('INSERT OR REPLACE INTO #', [$TableName]);
$QueryBuilder->AppendIdentifiers('(#)', $ColumnNames, ',');
//TODO: Fix unique constraint conflicts
$this->AppendDataAsInlineTable($QueryBuilder, $Table->GetColumns(), $DerivedTableName, $Rows);
}
protected function AppendIdentifier(QueryBuilder $QueryBuilder, E\IdentifierExpression $Expression)
{
$QueryBuilder->AppendIdentifier('#', $Expression->GetIdentifierSegments());
}
public function AppendCollation(QueryBuilder $QueryBuilder, Mysql\Columns\Collation $Trait)
{
$QueryBuilder->AppendIdentifier('COLLATE #', [$Trait->GetName()]);
}
public static function AppendAlterTable(QueryBuilder $Builder, Relational\Table $Table)
{
$Builder->AppendIdentifier('ALTER TABLE # ', [$Table->GetName()]);
}
public function Index(QueryBuilder $QueryBuilder, Table $Table, Mysql\Tables\Index $Trait)
{
$QueryBuilder->AppendIdentifier($this->MapIndexType($Trait->GetType()) . ' INDEX # ', [$Trait->GetName()]);
$QueryBuilder->Append('(');
$First = true;
foreach ($Trait->GetColumns() as $Column) {
if ($First) {
$First = false;
} else {
$QueryBuilder->Append(',');
}
$ColumnName = $Column->GetName();
$QueryBuilder->AppendIdentifier('#', [$ColumnName]);
$QueryBuilder->Append(' ' . $this->MapIndexDirection($Trait->GetColumnDirection($QueryBuilder)));
}
$QueryBuilder->Append(')');
$StorageType = $Trait->GetStorageType();
if ($StorageType !== null) {
$QueryBuilder->Append('USING' . $this->MapIndexStorageType($Trait->GetStorageType()));
}
}
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]);
}
private function AppendColumnPosition(QueryBuilder $QueryBuilder, Column $PreviousColumn = null)
{
return $PreviousColumn === null ? $QueryBuilder->Append('FIRST') : $QueryBuilder->AppendIdentifier('AFTER #', [$PreviousColumn->GetName()]);
}
