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<?php |
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namespace ClickHouseDB\Query\Degeneration; |
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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] = $value; |
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} |
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} |
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static function __ifsets($matches, $markers, $else = false) |
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{ |
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$content_false = ''; |
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if ($else) |
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{ |
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list($condition, $preset, $variable, $content_true, $content_false) = $matches; |
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} else |
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{ |
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list($condition, $preset, $variable, $content_true) = $matches; |
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} |
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$preset = strtolower($preset); |
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if ($preset == 'set') |
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{ |
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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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{ |
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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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{ |
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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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{ |
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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 = $this->bindings; |
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// 2. process if/else conditions |
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$sql = preg_replace_callback('#\{if\s(.+?)}(.+?)\{else}(.+?)\{/if}#sui', function($matches) use ($markers) { |
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list($condition, $variable, $content_true, $content_false) = $matches; |
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return (isset($markers[$variable]) && ($markers[$variable] || is_numeric($markers[$variable]))) |
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? $content_true |
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: $content_false; |
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}, $sql); |
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// 3. process if conditions |
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$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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return $sql; |
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} |
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} |
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smi2 /
phpClickHouse
Adding explicit visibility (
private,protected, orpublic) is generally recommend to communicate to other developers how, and from where this method is intended to be used.