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<?php |
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/* |
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* @copyright (c) 2019 Mendel <[email protected]> |
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* @license see license.txt |
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*/ |
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namespace drycart\data; |
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/** |
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* Helper for simple compare checks |
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* |
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* @author mendel |
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*/ |
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class CompareHelper |
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{ |
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/** |
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* List of main compare rules |
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*/ |
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const RULES = [ |
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'<=', '>=', '!=', '!like:','!contain:', '!in:', 'like:','contain:', 'in:', '<', '>', '=' |
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]; |
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/** |
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* list of aliases for rules |
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*/ |
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const RULES_ALIASES = [ |
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'=<' => '<=', |
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'=>' => '>=', |
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'!' => '!=', |
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'<>' => '!=', |
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]; |
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/** |
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* Compare two values using orders list in format [field1, field2, !field3] |
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* where ! is reverse ordering |
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* |
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* @param array $orders |
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* @param type $value1 |
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* @param type $value2 |
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* @return int |
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*/ |
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public static function compareByOrders(array $orders, $value1, $value2) : int |
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{ |
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$wrapper1 = new DataWrapper($value1); |
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$wrapper2 = new DataWrapper($value2); |
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foreach($orders as $order) { |
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if($order[0] == '!') { |
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$field = substr($order, 1); |
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$direction = 1; |
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} else { |
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$field = $order; |
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$direction = -1; |
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} |
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if ($wrapper1[$field] != $wrapper2[$field]) { |
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return $direction * ($wrapper1[$field] < $wrapper2[$field] ? -1 : 1); |
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} |
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} |
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return 0; |
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} |
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/** |
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* Do simple checks by rules |
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* rule is one of: '<=', '=<', '>=', '=>', '!like:','!contain:', '!in:', |
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* 'like:','contain:', 'in:', '<', '>', '!', '=' |
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* value1 and value2 is is parameters for compare |
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* |
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* @param string $rule |
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* @param mixed $value1 |
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* @param mixed $value2 |
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* @return bool |
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* @throws \UnexpectedValueException |
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*/ |
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public static function compareByRule(string $rule, $value1, $value2) : bool |
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{ |
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switch (static::tryRuleAliase($rule)) { |
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case '<=': |
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return ($value1 <= $value2); |
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case '>=': |
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return ($value1 >= $value2); |
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case '!like:': |
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return !StrHelper::like($value1, $value2); |
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case '!in:': |
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return !in_array($value1, $value2); |
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case '!contain:': |
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return !in_array($value2, $value1); |
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case 'like:': |
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return StrHelper::like($value1, $value2); |
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case 'contain:': |
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return in_array($value2, $value1); |
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case 'in:': |
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return in_array($value1, $value2); |
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case '<': |
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return ($value1 < $value2); |
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case '>': |
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return ($value1 > $value2); |
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case '!=': |
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return ($value1 != $value2); |
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case '=': |
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return ($value1 == $value2); |
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default: |
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throw new \UnexpectedValueException('Unknown rule '.$rule); |
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} |
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} |
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/** |
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* Change rules aliase to main rule if it is aliase |
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* |
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* @param string $rule |
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* @return string |
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*/ |
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protected static function tryRuleAliase(string $rule) : string |
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{ |
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if(isset(self::RULES_ALIASES[$rule])) { |
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return self::RULES_ALIASES[$rule]; |
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} else { |
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return $rule; |
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} |
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} |
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} |
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drycart /
data
