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<?php |
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namespace ClickHouseDB\Query\Degeneration; |
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use DateTimeInterface; |
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class Bindings implements \ClickHouseDB\Query\Degeneration |
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{ |
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/** |
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* @var array |
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*/ |
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protected $bindings = []; |
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/** |
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* @param array $bindings |
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*/ |
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public function bindParams(array $bindings) |
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{ |
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$this->bindings = []; |
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foreach ($bindings as $column => $value) { |
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$this->bindParam($column, $value); |
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} |
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} |
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/** |
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* @param string $column |
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* @param mixed $value |
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*/ |
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public function bindParam($column, $value) |
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{ |
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if ($value instanceof DateTimeInterface) { |
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$value = $value->format('Y-m-d H:i:s'); |
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} |
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$this->bindings[$column] = $value; |
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} |
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/** |
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* Escape an string |
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* Can overwrite use CodeIgniter->escape_str() https://github.com/bcit-ci/CodeIgniter/blob/develop/system/database/DB_driver.php#L920 |
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* |
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* @param string $value |
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* @return string |
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*/ |
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private function escapeString($value) |
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{ |
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// $non_displayables = array( |
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// '/%0[0-8bcef]/', // url encoded 00-08, 11, 12, 14, 15 |
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// '/%1[0-9a-f]/', // url encoded 16-31 |
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// '/[\x00-\x08]/', // 00-08 |
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// '/\x0b/', // 11 |
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// '/\x0c/', // 12 |
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// '/[\x0e-\x1f]/' // 14-31 |
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// ); |
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// foreach ( $non_displayables as $regex ) $data = preg_replace( $regex, '', $data ); |
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return addslashes($value); |
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} |
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/** |
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* Escape an array |
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* |
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* @param array $values |
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* @return array |
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*/ |
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private function escapeArray($values) |
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{ |
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$escapedValues = []; |
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foreach ($values as $value) { |
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if (is_numeric($value)) { |
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$escapedValues[] = $value; |
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} elseif (is_string($value)) { |
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$escapedValues[] = $this->escapeString($value); |
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} elseif (is_array($value)) { |
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$escapedValues[] = $this->escapeArray($value); |
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} |
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} |
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return $escapedValues; |
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} |
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/** |
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* Compile Bindings |
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* |
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* @param string $sql |
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* @return mixed |
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*/ |
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public function process($sql) |
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{ |
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// Can try use |
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// CodeIgniter->bind() |
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// https://github.com/bcit-ci/CodeIgniter/blob/develop/system/database/DB_driver.php#L920 |
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arsort($this->bindings); |
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foreach ($this->bindings as $key => $value) { |
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$valueSet = null; |
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$valueSetText = null; |
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if (null === $value || $value === false) { |
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$valueSetText = ""; |
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} |
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if (is_array($value)) { |
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$escapedValue = $this->escapeArray($value); |
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$valueSetText = "'" . implode("','", $escapedValue) . "'"; |
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$valueSet = implode(", ", $escapedValue); |
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} |
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if (is_numeric($value)) { |
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$valueSetText = $value; |
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$valueSet = $value; |
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} |
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if (is_string($value)) { |
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$valueSet = $value; |
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$valueSetText = "'" . $this->escapeString($value) . "'"; |
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} |
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if ($valueSetText !== null) { |
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$sql = str_ireplace(':' . $key, $valueSetText, $sql); |
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} |
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if ($valueSet !== null) { |
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$sql = str_ireplace('{' . $key . '}', $valueSet, $sql); |
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} |
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} |
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return ($sql); |
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} |
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} |
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