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<?php
declare(strict_types=1);
namespace Doctrine\DBAL\Schema;
use Doctrine\DBAL\Platforms\AbstractPlatform;
use function array_keys;
use function array_map;
use function strtolower;
/**
* Class for a unique constraint.
*/
class UniqueConstraint extends AbstractAsset
{
/**
* Asset identifier instances of the column names the unique constraint is associated with.
*
* @var array<string, Identifier>
*/
protected array $columns = [];
/**
* Platform specific flags
*
* @var array<string, true>
*/
protected array $flags = [];
/**
* @param array<string> $columns
* @param array<string> $flags
* @param array<string, mixed> $options
*/
public function __construct(
string $name,
array $columns,
array $flags = [],
private readonly array $options = [],
) {
$this->_setName($name);
foreach ($columns as $column) {
$this->addColumn($column);
}
foreach ($flags as $flag) {
$this->addFlag($flag);
}
}
/**
* Returns the names of the referencing table columns the constraint is associated with.
*
* @return list<string>
*/
public function getColumns(): array
{
return array_keys($this->columns);
}
/**
* Returns the quoted representation of the column names the constraint is associated with.
*
* But only if they were defined with one or a column name
* is a keyword reserved by the platform.
* Otherwise, the plain unquoted value as inserted is returned.
*
* @param AbstractPlatform $platform The platform to use for quotation.
*
* @return list<string>
*/
public function getQuotedColumns(AbstractPlatform $platform): array
{
$columns = [];
foreach ($this->columns as $column) {
$columns[] = $column->getQuotedName($platform);
}
return $columns;
}
/** @return array<int, string> */
public function getUnquotedColumns(): array
{
return array_map($this->trimQuotes(...), $this->getColumns());
}
/**
* Returns platform specific flags for unique constraint.
*
* @return array<int, string>
*/
public function getFlags(): array
{
return array_keys($this->flags);
}
/**
* Adds flag for a unique constraint that translates to platform specific handling.
*
* @return $this
*
* @example $uniqueConstraint->addFlag('CLUSTERED')
*/
public function addFlag(string $flag): self
{
$this->flags[strtolower($flag)] = true;
return $this;
}
/**
* Does this unique constraint have a specific flag?
*/
public function hasFlag(string $flag): bool
{
return isset($this->flags[strtolower($flag)]);
}
/**
* Removes a flag.
*/
public function removeFlag(string $flag): void
{
unset($this->flags[strtolower($flag)]);
}
public function hasOption(string $name): bool
{
return isset($this->options[strtolower($name)]);
}
public function getOption(string $name): mixed
{
return $this->options[strtolower($name)];
}
/** @return array<string, mixed> */
public function getOptions(): array
{
return $this->options;
}
protected function addColumn(string $column): void
{
$this->columns[$column] = new Identifier($column);
}
}
|
