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<?php |
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namespace ClickHouseDB\Query\Degeneration; |
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use ClickHouseDB\Exception\QueryException; |
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use ClickHouseDB\Query\Degeneration; |
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class Conditions implements 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 $bindings) |
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{ |
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foreach ($bindings as $column => $value) { |
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$this->bindings[$column] = $value; |
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} |
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} |
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public function getBind(): array |
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{ |
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return $this->bindings; |
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} |
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static function __ifsets($matches, $markers) |
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{ |
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$content_false = ''; |
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$condition = ''; |
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$flag_else = ''; |
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//print_r($matches); |
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if (sizeof($matches) == 4) { |
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list($condition, $preset, $variable, $content_true) = $matches; |
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} elseif (sizeof($matches) == 6) { |
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list($condition, $preset, $variable, $content_true, $flag_else, $content_false) = $matches; |
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} else { |
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throw new QueryException('Error in parse Conditions' . json_encode($matches)); |
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} |
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$variable = trim($variable); |
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$preset = strtolower(trim($preset)); |
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if ($preset == '') { |
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return (isset($markers[$variable]) && ($markers[$variable] || is_numeric($markers[$variable]))) |
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? $content_true |
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: $content_false; |
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} |
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if ($preset == 'set') { |
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return (isset($markers[$variable]) && !empty($markers[$variable])) ? $content_true : $content_false; |
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} |
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if ($preset == 'bool') { |
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return (isset($markers[$variable]) && is_bool($markers[$variable]) && $markers[$variable] == true) |
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? $content_true |
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: $content_false; |
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} |
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if ($preset == 'string') { |
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return (isset($markers[$variable]) && is_string($markers[$variable]) && strlen($markers[$variable])) |
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? $content_true |
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: $content_false; |
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} |
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if ($preset == 'int') { |
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return (isset($markers[$variable]) && intval($markers[$variable]) <> 0) |
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? $content_true |
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: $content_false; |
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} |
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return ''; |
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} |
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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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$markers = $this->bindings; |
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// ------ if/else conditions & if[set|int]/else conditions ----- |
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$sql = preg_replace_callback('#\{if(.{0,}?)\s+([^\}]+?)\}(.+?)(\{else\}([^\{]+?)?)?\s*\{\/if}#sui', function ($matches) use ($markers) { |
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return self::__ifsets($matches, $markers); |
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} |
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, $sql); |
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return $sql; |
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/* |
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* $ifint var ELSE {ENDIF} |
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* |
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*/ |
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// stackoverflow |
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// if(whatever) { } else { adsffdsa } else if() { } |
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// /^if\s*\((.*?)\)\s*{(.*?)}(\s*(else|else\s+if\s*\((.*?)\))\s*{(.*?)})*/ |
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// if (condition_function(params)) { |
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// statements; |
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//} |
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// if\s*\(((?:(?:(?:"(?:(?:\\")|[^"])*")|(?:'(?:(?:\\')|[^'])*'))|[^\(\)]|\((?1)\))*+)\)\s*{((?:(?:(?:"(?:(?:\\")|[^"])*")|(?:'(?:(?:\\')|[^'])*'))|[^{}]|{(?2)})*+)}\s*(?:(?:else\s*{((?:(?:(?:"(?:(?:\\")|[^"])*")|(?:'(?:(?:\\')|[^'])*'))|[^{}]|{(?3)})*+)}\s*)|(?:else\s*if\s*\(((?:(?:(?:"(?:(?:\\")|[^"])*")|(?:'(?:(?:\\')|[^'])*'))|[^\(\)]|\((?4)\))*+)\)\s*{((?:(?:(?:"(?:(?:\\")|[^"])*")|(?:'(?:(?:\\')|[^'])*'))|[^{}]|{(?5)})*+)}\s*))*; |
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// @if\s*\(\s*([^)]*)\s*\)\s*(((?!@if|@endif).)*)\s*(?:@else\s*(((?!@if|@endif).)*))?\s*@endif |
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// @if \s* \( \s* ([^)]*)\s*\)\s*(((?!@if|@endif).)*)\s*(?:@else\s*(((?!@if|@endif).)*))?\s*@endif |
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// [^}] |
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// // 3. process if conditions |
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// $sql = preg_replace_callback('#\{if\s(.+?)}(.+?)\{/if}#sui', function($matches) use ($markers) { |
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// list($condition, $variable, $content) = $matches; |
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// if (isset($markers[$variable]) && ($markers[$variable] || is_numeric($markers[$variable]))) { |
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// return $content; |
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// } |
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// }, $sql); |
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// 1. process if[set|int]/else conditions |
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// $sql = preg_replace_callback('#\{if(.{1,}?)\s(.+?)}(.+?)\{else}(.+?)\{/if}#sui', function($matches) use ($markers) {return self::__ifsets($matches, $markers, true); }, $sql); |
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// $sql = preg_replace_callback('#\{if(.{1,}?)\s(.+?)}(.+?)\{/if}#sui', function($matches) use ($markers) { return self::__ifsets($matches, $markers, false); }, $sql); |
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} |
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} |
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smi2 /
phpClickHouse
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