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<?php |
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declare(strict_types=1); |
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namespace PhpMyAdmin\SqlParser\Components; |
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use PhpMyAdmin\SqlParser\Component; |
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use PhpMyAdmin\SqlParser\Parsers\PartitionDefinitions; |
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use PhpMyAdmin\SqlParser\Token; |
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use PhpMyAdmin\SqlParser\TokensList; |
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use function trim; |
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/** |
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* Parses an alter operation. |
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*/ |
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final class AlterOperation implements Component |
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{ |
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/** |
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* Options of this operation. |
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* |
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* @var OptionsArray |
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*/ |
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public $options; |
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/** |
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* The altered field. |
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* |
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* @var Expression|string|null |
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*/ |
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public $field; |
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/** |
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* The partitions. |
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* |
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* @var PartitionDefinition[]|null |
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*/ |
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public $partitions; |
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/** |
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* @param OptionsArray $options options of alter operation |
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* @param Expression|string|null $field altered field |
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* @param PartitionDefinition[]|null $partitions partitions definition found in the operation |
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* @param Token[] $unknown unparsed tokens found at the end of operation |
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*/ |
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public function __construct( |
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OptionsArray|null $options = null, |
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Expression|string|null $field = null, |
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array|null $partitions = null, |
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public array $unknown = [], |
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) { |
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$this->partitions = $partitions; |
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$this->options = $options; |
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$this->field = $field; |
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$this->unknown = $unknown; |
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} |
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public function build(): string |
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{ |
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// Specific case of RENAME COLUMN that insert the field between 2 options. |
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$afterFieldsOptions = new OptionsArray(); |
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if ($this->options->has('RENAME') && $this->options->has('COLUMN')) { |
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$afterFieldsOptions = clone $this->options; |
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$afterFieldsOptions->remove('RENAME'); |
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$afterFieldsOptions->remove('COLUMN'); |
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$this->options->remove('TO'); |
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} |
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$ret = $this->options . ' '; |
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if (isset($this->field) && ($this->field !== '')) { |
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$ret .= $this->field . ' '; |
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} |
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$ret .= $afterFieldsOptions . TokensList::buildFromArray($this->unknown); |
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if (isset($this->partitions)) { |
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$ret .= PartitionDefinitions::buildAll($this->partitions); |
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} |
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return trim($ret); |
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} |
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public function __toString(): string |
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{ |
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return $this->build(); |
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} |
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} |
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phpmyadmin /
sql-parser
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