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<?php |
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/** |
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* Class sqlHelper |
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*/ |
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class sqlHelper |
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{ |
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/** |
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* @param $field |
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* @param string $table |
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* @return bool|float|int|string |
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*/ |
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public static function tildeField($field, $table = '') |
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{ |
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$out = ''; |
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if (!empty($field) && is_scalar($field)) { |
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if (!empty($table) && is_scalar($table) && $tmp = strpos($field, $table)) { |
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$tmp = substr($field, $tmp + strlen($table), 1); |
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if ($tmp != '.' && $tmp != '`') { |
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$field = $table . "." . $field; |
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} else { |
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$out = $field; |
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} |
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} elseif (empty($table) && strpos($field, "`")) { |
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$out = $field; |
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} |
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if (empty($out)) { |
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$field = explode(".", $field); |
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foreach ($field as &$f) { |
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$f = "`" . str_replace("`", "", $f) . "`"; |
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} |
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$out = implode(".", $field); |
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} |
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} |
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return $out; |
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} |
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/** |
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* @param $string |
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* @param string $mode |
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* @return mixed|string |
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*/ |
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public static function trimLogicalOp($string, $mode = '') |
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{ |
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$regex = 'AND|and|OR|or|\&\&|\|\||NOT|not|\!'; |
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switch ($mode) { |
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case 'right': |
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$regex = '\s+(' . $regex . ')\s*$'; |
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break; |
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case 'left': |
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$regex = '^\s*(' . $regex . ')\s+'; |
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break; |
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default: |
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$regex = '(^\s*(' . $regex . ')\s+)|(\s+(' . $regex . ')\s*$)'; |
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break; |
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} |
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return is_scalar($string) ? preg_replace("/{$regex}/", "", $string) : ""; |
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} |
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/** |
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* Экранирование строки в SQL запросе LIKE |
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* @see: http://stackoverflow.com/a/3683868/2323306 |
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* |
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* @param DocumentParser $modx |
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* @param string $field поле по которому осуществляется поиск |
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* @param string $value искомое значение |
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* @param string $escape экранирующий символ |
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* @param string $tpl шаблон подстановки значения в SQL запрос |
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* @return string строка для подстановки в SQL запрос |
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*/ |
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public static function LikeEscape(DocumentParser $modx, $field, $value, $escape = '=', $tpl = '%[+value+]%') |
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{ |
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$str = ''; |
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$escaped = false; |
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if (!empty($field) && is_string($field) && is_scalar($value) && $value !== '') { |
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$field = sqlHelper::tildeField($field); |
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if (is_scalar($escape) && !empty($escape) && !in_array($escape, array("_", "%", "'"))) { |
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$str = str_replace( |
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array($escape, '_', '%'), |
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array($escape . $escape, $escape . '_', $escape . '%'), |
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$value |
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); |
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$escaped = true; |
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} |
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$str = $modx->db->escape($str); |
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$str = str_replace('[+value+]', $str, $tpl); |
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if ($escaped) { |
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$str = "{$field} LIKE '{$str}' ESCAPE '{$escape}'"; |
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} else { |
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$str = "{$field} LIKE '{$str}'"; |
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} |
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} |
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return $str; |
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} |
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101
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} |
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AgelxNash /
DocLister
