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<?php |
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namespace Nip\Database\Query\Condition; |
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use Nip\Database\Query\AbstractQuery as Query; |
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class Condition |
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{ |
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protected $_string; |
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protected $_values; |
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protected $_query; |
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/** |
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* @param string $string |
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*/ |
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public function __construct($string, $values = array()) |
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{ |
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$this->_string = $string; |
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$this->_values = $values; |
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} |
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public function __toString() |
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{ |
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return $this->getString(); |
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} |
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public function getString() |
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{ |
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return $this->parseString($this->_string, $this->_values); |
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} |
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/** |
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* Parses $string and replaces all instances of "?" with corresponding $values |
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* |
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* @param string $string |
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* @param array $values |
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* @return string |
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*/ |
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public function parseString($string, $values) |
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{ |
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$positions = []; |
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$pos = 0; |
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$offset = 0; |
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while (($pos = strpos($string, "?", $offset)) !== false) { |
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$positions[] = $pos; |
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$offset = $pos + 1; |
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} |
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$count = count($positions); |
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if ($count == 1) { |
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$values = array($values); |
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} |
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for ($i = 0; $i < $count; $i++) { |
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$value = $values[$i]; |
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if ($value instanceof Query) { |
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$value = $this->parseValueQuery($value); |
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} elseif (is_array($value)) { |
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foreach ($value as $key => $subvalue) { |
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if (trim($subvalue) != '') { |
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$value[$key] = is_numeric($subvalue) ? $subvalue : $this->getQuery()->getManager()->getAdapter()->quote($subvalue); |
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} else { |
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unset($value[$key]); |
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} |
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} |
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$value = "(" . implode(", ", $value) . ")"; |
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} elseif (is_numeric($value)) { |
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} else { |
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$value = $this->getQuery()->getManager()->getAdapter()->quote($values[$i]); |
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} |
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$string = substr_replace($string, $value, strpos($string, '?'), 1); |
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} |
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return $string; |
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} |
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/** |
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* @param Query $value |
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*/ |
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protected function parseValueQuery($value) |
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{ |
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return "(" . $value->assemble() . ")"; |
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} |
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/** |
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* @return Query |
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*/ |
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public function getQuery() |
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{ |
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return $this->_query; |
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} |
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/** |
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* @param Query $query |
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* @return $this |
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*/ |
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public function setQuery($query) |
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{ |
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$this->_query = $query; |
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return $this; |
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} |
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/** |
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* @param Condition $condition |
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*/ |
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public function and_($condition) |
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{ |
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return new AndCondition($this, $condition); |
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} |
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/** |
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* @param Condition $condition |
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*/ |
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public function or_($condition) |
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{ |
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return new OrCondition($this, $condition); |
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} |
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public function protectCondition($condition) |
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{ |
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return strpos($condition, ' AND ') || strpos($condition, ' OR ') ? '(' . $condition . ')' : $condition; |
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} |
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} |
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This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVar
assignment in line 1 and the$higher
assignment in line 2 are dead. The first because$myVar
is never used and the second because$higher
is always overwritten for every possible time line.