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<?php |
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namespace Doctrine\DBAL\Schema; |
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use Doctrine\DBAL\Platforms\AbstractPlatform; |
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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 $columns = array(); |
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/** |
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* Platform specific flags. |
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* array($flagName => true) |
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* |
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* @var array |
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*/ |
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protected $flags = array(); |
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/** |
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* Platform specific options. |
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* |
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* @var array |
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*/ |
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private $options = array(); |
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/** |
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* @param string $indexName |
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* @param string[] $columns |
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* @param array $flags |
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* @param array $options |
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*/ |
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public function __construct($indexName, array $columns, array $flags = [], array $options = []) |
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{ |
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$this->_setName($indexName); |
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$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 = array(); |
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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 $columns; |
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} |
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/** |
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* @return string[] |
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*/ |
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public function getUnquotedColumns() |
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{ |
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return array_map(array($this, 'trimQuotes'), $this->getColumns()); |
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} |
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/** |
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* Returns platform specific flags for unique constraint. |
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* |
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* @return string[] |
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*/ |
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public function getFlags() |
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{ |
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return array_keys($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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* @example $uniqueConstraint->addFlag('CLUSTERED') |
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* |
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* @param string $flag |
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* |
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* @return self |
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*/ |
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public function addFlag($flag) |
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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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* @param string $flag |
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* |
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* @return boolean |
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*/ |
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public function hasFlag($flag) |
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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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* @param string $flag |
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* |
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* @return void |
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*/ |
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public function removeFlag($flag) |
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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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* @param string $name |
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* |
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* @return boolean |
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*/ |
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public function hasOption($name) |
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{ |
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return isset($this->options[strtolower($name)]); |
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} |
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/** |
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* @param string $name |
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* |
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* @return mixed |
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*/ |
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public function getOption($name) |
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{ |
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return $this->options[strtolower($name)]; |
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} |
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/** |
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* @return array |
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*/ |
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public function getOptions() |
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{ |
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return $this->options; |
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} |
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/** |
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* @param string $column |
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* |
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* @return void |
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* |
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* @throws \InvalidArgumentException |
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*/ |
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protected function _addColumn($column) |
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{ |
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if (! is_string($column)) { |
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throw new \InvalidArgumentException("Expecting a string as Index Column"); |
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} |
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$this->columns[$column] = new Identifier($column); |
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} |
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} |
doctrine /
dbal
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