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Revision Autor Zeilennr. Zeile
148 lars 1 
<?php
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namespace Doctrine\DBAL\Schema;
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use Doctrine\DBAL\Platforms\AbstractPlatform;
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use function array_keys;
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use function array_map;
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use function strtolower;
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/**
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 * Class for a unique constraint.
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 */
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class UniqueConstraint extends AbstractAsset implements Constraint
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{
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    /**
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     * Asset identifier instances of the column names the unique constraint is associated with.
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     * array($columnName => Identifier)
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     *
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     * @var Identifier[]
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     */
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    protected $columns = [];
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    /**
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     * Platform specific flags.
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     * array($flagName => true)
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     *
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     * @var true[]
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     */
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    protected $flags = [];
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    /**
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     * Platform specific options.
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     *
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     * @var mixed[]
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     */
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    private array $options;
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    /**
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     * @param string[] $columns
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     * @param string[] $flags
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     * @param mixed[]  $options
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     */
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    public function __construct(string $name, array $columns, array $flags = [], array $options = [])
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    {
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        $this->_setName($name);
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        $this->options = $options;
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        foreach ($columns as $column) {
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            $this->addColumn($column);
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        }
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        foreach ($flags as $flag) {
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            $this->addFlag($flag);
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        }
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    }
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    /**
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     * {@inheritdoc}
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     */
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    public function getColumns()
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    {
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        return array_keys($this->columns);
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    }
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    /**
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     * {@inheritdoc}
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     */
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    public function getQuotedColumns(AbstractPlatform $platform)
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    {
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        $columns = [];
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        foreach ($this->columns as $column) {
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            $columns[] = $column->getQuotedName($platform);
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        }
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        return $columns;
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    }
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    /** @return string[] */
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    public function getUnquotedColumns(): array
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    {
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        return array_map([$this, 'trimQuotes'], $this->getColumns());
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    }
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    /**
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     * Returns platform specific flags for unique constraint.
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     *
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     * @return string[]
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     */
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    public function getFlags(): array
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    {
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        return array_keys($this->flags);
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    }
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    /**
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     * Adds flag for a unique constraint that translates to platform specific handling.
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     *
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     * @return $this
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     *
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     * @example $uniqueConstraint->addFlag('CLUSTERED')
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     */
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    public function addFlag(string $flag): UniqueConstraint
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    {
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        $this->flags[strtolower($flag)] = true;
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        return $this;
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    }
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    /**
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     * Does this unique constraint have a specific flag?
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     */
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    public function hasFlag(string $flag): bool
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    {
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        return isset($this->flags[strtolower($flag)]);
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    }
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    /**
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     * Removes a flag.
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     */
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    public function removeFlag(string $flag): void
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    {
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        unset($this->flags[strtolower($flag)]);
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    }
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    /**
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     * Does this unique constraint have a specific option?
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     */
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    public function hasOption(string $name): bool
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    {
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        return isset($this->options[strtolower($name)]);
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    }
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    /** @return mixed */
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    public function getOption(string $name)
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    {
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        return $this->options[strtolower($name)];
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    }
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    /** @return mixed[] */
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    public function getOptions(): array
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    {
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        return $this->options;
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    }
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    /**
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     * Adds a new column to the unique constraint.
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     */
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    protected function addColumn(string $column): void
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    {
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        $this->columns[$column] = new Identifier($column);
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    }
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}