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<?php |
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declare(strict_types=1); |
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namespace Yiisoft\Db\Query\Conditions; |
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use Yiisoft\Db\Exception\InvalidArgumentException; |
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use Yiisoft\Db\Expression\ExpressionBuilderInterface; |
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use Yiisoft\Db\Expression\ExpressionBuilderTrait; |
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use Yiisoft\Db\Expression\ExpressionInterface; |
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/** |
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* Class LikeConditionBuilder builds objects of {@see LikeCondition}. |
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*/ |
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class LikeConditionBuilder implements ExpressionBuilderInterface |
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{ |
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use ExpressionBuilderTrait; |
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/** |
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* @var array map of chars to their replacements in LIKE conditions. By default it's configured to escape |
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* `%`, `_` and `\` with `\`. |
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*/ |
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protected array $escapingReplacements = [ |
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'%' => '\%', |
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'_' => '\_', |
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'\\' => '\\\\', |
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]; |
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protected ?string $escapeCharacter = null; |
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/** |
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* Method builds the raw SQL from the $expression that will not be additionally escaped or quoted. |
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* |
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* @param ExpressionInterface|LikeCondition $expression the expression to be built. |
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* @param array $params the binding parameters. |
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* |
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* @return string the raw SQL that will not be additionally escaped or quoted. |
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*/ |
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public function build(ExpressionInterface $expression, &$params = []): string |
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{ |
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$operator = strtoupper($expression->getOperator()); |
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$column = $expression->getColumn(); |
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$values = $expression->getValue(); |
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$escape = $expression->getEscapingReplacements(); |
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if ($escape === null || $escape === []) { |
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$escape = $this->escapingReplacements; |
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} |
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[$andor, $not, $operator] = $this->parseOperator($operator); |
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if (!is_array($values)) { |
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$values = [$values]; |
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} |
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if (empty($values)) { |
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return $not ? '' : '0=1'; |
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} |
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if ($column instanceof ExpressionInterface) { |
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$column = $this->queryBuilder->buildExpression($column, $params); |
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} elseif (is_string($column) && strpos($column, '(') === false) { |
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$column = $this->queryBuilder->getDb()->quoteColumnName($column); |
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} |
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62 |
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$escapeSql = $this->getEscapeSql(); |
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$parts = []; |
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foreach ($values as $value) { |
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if ($value instanceof ExpressionInterface) { |
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$phName = $this->queryBuilder->buildExpression($value, $params); |
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} else { |
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$phName = $this->queryBuilder->bindParam( |
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empty($escape) ? $value : ('%' . strtr($value, $escape) . '%'), |
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$params |
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); |
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} |
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$parts[] = "{$column} {$operator} {$phName}{$escapeSql}"; |
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} |
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return implode($andor, $parts); |
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} |
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/** |
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* @var string|null character used to escape special characters in LIKE conditions. |
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* |
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* By default it's assumed to be `\`. |
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*/ |
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private function getEscapeSql(): ?string |
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{ |
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if ($this->escapeCharacter !== null) { |
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return " ESCAPE '{$this->escapeCharacter}'"; |
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} |
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return ''; |
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} |
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/** |
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* @param string $operator |
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* |
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* @return array |
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*/ |
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protected function parseOperator($operator): array |
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{ |
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if (!preg_match('/^(AND |OR |)(((NOT |))I?LIKE)/', $operator, $matches)) { |
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throw new InvalidArgumentException("Invalid operator '$operator'."); |
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} |
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$andor = ' ' . (!empty($matches[1]) ? $matches[1] : 'AND '); |
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$not = !empty($matches[3]); |
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$operator = $matches[2]; |
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return [$andor, $not, $operator]; |
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} |
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} |
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yiisoft /
db
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