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<?php |
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/** |
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* Trait WhereTrait |
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* |
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* @filesource WhereTrait.php |
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* @created 12.06.2017 |
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* @package chillerlan\Database\Query |
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* @author Smiley <[email protected]> |
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* @copyright 2017 Smiley |
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* @license MIT |
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*/ |
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namespace chillerlan\Database\Query; |
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/** |
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* https://xkcd.com/1409/ |
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* |
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* @implements \chillerlan\Database\Query\Where |
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* |
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* @property \chillerlan\Database\Drivers\DriverInterface $db |
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* @property \chillerlan\Database\Dialects\Dialect $dialect |
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* @property array $bindValues |
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*/ |
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trait WhereTrait{ |
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private array $operators = [ |
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'=', '>=', '>', '<=', '<', '<>', '!=', |
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'|', '&', '<<', '>>', '+', '-', '*', '/', |
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'%', '^', '<=>', '~', '!', 'DIV', 'MOD', |
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'IS', 'IS NOT', 'IN', 'NOT IN', 'LIKE', |
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'NOT LIKE', 'REGEXP', 'NOT REGEXP', |
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'EXISTS', 'ANY', 'SOME', |
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// 'BETWEEN', 'NOT BETWEEN', |
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]; |
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private array $joinArgs = ['AND', 'OR', 'XOR']; |
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protected array $where = []; |
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/** |
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* @param mixed $val1 |
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* @param mixed|null $val2 |
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* @param string|null $operator |
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* @param bool|null $bind |
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* @param string|null $join |
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* |
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* @return $this |
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*/ |
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public function where($val1, $val2 = null, string $operator = null, bool $bind = null, string $join = null):Statement{ |
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$operator = $operator !== null ? strtoupper(trim($operator)) : '='; |
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$bind = $bind ?? true; |
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$join = strtoupper(trim($join)); |
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$join = in_array($join, $this->joinArgs, true) ? $join : 'AND'; |
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if(in_array($operator, $this->operators, true)){ |
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$where = [ |
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is_array($val1) |
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? strtoupper($val1[1]).'('.$this->dialect->quote($val1[0]).')' |
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: $this->dialect->quote($val1) |
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]; |
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if(in_array($operator, ['IN', 'NOT IN', 'ANY', 'SOME',], true)){ |
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if(is_array($val2)){ |
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if($bind){ |
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$where[] = $operator.'('.implode(',', array_fill(0, count($val2), '?')).')'; |
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$this->bindValues = array_merge($this->bindValues, $val2); |
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} |
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else{ |
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$where[] = $operator.'('.implode(',', array_map([$this->db, 'escape'], $val2)).')'; // @todo: quote |
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} |
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} |
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else if($val2 instanceof Statement){ |
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$where[] = $operator.'('.$val2->sql().')'; |
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$this->bindValues = array_merge($this->bindValues, $val2->bindValues()); |
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} |
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} |
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// else if(in_array($operator, ['BETWEEN', 'NOT BETWEEN'], true)){ |
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// @todo |
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// } |
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else{ |
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$where[] = $operator; |
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if($val2 instanceof Statement){ |
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$where[] = '('.$val2->sql().')'; |
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$this->bindValues = array_merge($this->bindValues, $val2->bindValues()); |
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} |
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elseif(is_null($val2)){ |
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$where[] = 'NULL'; |
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} |
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elseif(is_bool($val2)){ |
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$where[] = $val2 ? 'TRUE' : 'FALSE'; |
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} |
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elseif(in_array(strtolower($val2), ['null', 'false', 'true', 'unknown'], true)){ |
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$where[] = strtoupper($val2); |
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} |
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else { |
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if($bind){ |
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$where[] = '?'; |
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$this->bindValues[] = $val2; |
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} |
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else{ |
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if(!empty($val2)){ |
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$where[] = $val2; |
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} |
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} |
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} |
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} |
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$this->where[] = [ |
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'join' => $join, |
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'stmt' => implode(' ', $where), |
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]; |
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} |
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return $this; |
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} |
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/** |
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* @param string|null $join |
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* |
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* @return $this |
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*/ |
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public function openBracket(string $join = null):Statement{ |
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$join = strtoupper(trim($join)); |
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if(in_array($join, $this->joinArgs, true)){ |
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$this->where[] = $join; |
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} |
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$this->where[] = '('; |
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return $this; |
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} |
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/** |
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* @return $this |
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*/ |
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public function closeBracket():Statement{ |
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$this->where[] = ')'; |
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return $this; |
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} |
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/** |
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* @return string |
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*/ |
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protected function _getWhere():string{ |
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$where = []; |
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foreach($this->where as $k => $v){ |
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$last = $this->where[$k-1] ?? false; |
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if(in_array($v, $this->joinArgs + ['(', ')'], true)){ |
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$where[] = $v; |
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continue; |
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} |
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if(!is_array($v)){ |
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continue; |
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} |
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if(!$last || $last === '('){ |
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$where[] = $v['stmt']; |
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} |
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else{ |
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$where[] = $v['join'].' '.$v['stmt']; |
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} |
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} |
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return !empty($where) ? 'WHERE '.implode(' ', $where) : ''; |
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} |
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} |
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