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<?php |
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namespace ClickHouseDB\Query\Degeneration; |
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use DateTimeInterface; |
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use function array_map; |
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use function implode; |
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use function is_array; |
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use function is_float; |
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use function is_int; |
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use function is_string; |
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use function sprintf; |
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use function str_ireplace; |
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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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* |
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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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// return str_replace("'", "''", remove_invisible_characters($str, FALSE)); |
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return addslashes($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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* Binds a list of values to the corresponding parameters. |
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* This is similar to [[bindValue()]] except that it binds multiple values at a time. |
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* |
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* @param string $sql |
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* @param array $binds |
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* @param string $pattern |
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* @return string |
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*/ |
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public function compile_binds($sql, $binds,$pattern) |
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{ |
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return preg_replace_callback($pattern, function($m) use ($binds){ |
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if(isset($binds[$m[1]])){ // If it exists in our array |
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return $binds[$m[1]]; // Then replace it from our array |
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}else{ |
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return $m[0]; // Otherwise return the whole match (basically we won't change it) |
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} |
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}, $sql); |
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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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arsort($this->bindings); |
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$bindFormatted=[]; |
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$bindRaw=[]; |
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foreach ($this->bindings as $key => $value) { |
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$valueSet = null; |
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$formattedParameter = null; |
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if ($value === null || $value === false) { |
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$formattedParameter = ''; |
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} |
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if (is_array($value)) { |
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$escapedValues = $this->escapeArray($value); |
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$escapedValues = array_map( |
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function ($escapedValue) { |
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if (is_string($escapedValue)) { |
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return $this->formatStringParameter($escapedValue); |
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} |
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return $escapedValue; |
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}, |
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$escapedValues |
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); |
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$formattedParameter = implode(',', $escapedValues); |
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$valueSet = implode(', ', $escapedValues); |
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} |
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if (is_float($value) || is_int($value)) { |
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$formattedParameter = $value; |
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$valueSet = $value; |
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} |
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if (is_string($value)) { |
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$valueSet = $value; |
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$formattedParameter = $this->formatStringParameter($this->escapeString($value)); |
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} |
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if ($formattedParameter !== null) { |
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$bindFormatted[$key]=$formattedParameter; |
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} |
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if ($valueSet !== null) { |
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$bindRaw[$key]=$valueSet; |
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} |
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} |
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for ($loop=0;$loop<2;$loop++) |
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{ |
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// dipping in binds |
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// example ['A' => '{B}' , 'B'=>':C','C'=>123] |
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$sql=$this->compile_binds($sql,$bindRaw,'#{([\w+]+)}#'); |
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} |
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$sql=$this->compile_binds($sql,$bindFormatted,'#:([\w+]+)#'); |
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return $sql; |
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} |
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/** |
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* @return string |
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*/ |
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private function formatStringParameter($value) |
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{ |
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return sprintf("'%s'", $value); |
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} |
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} |
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smi2 /
phpClickHouse
