rhymix/classes/xml/XmlQueryParser.class.php

369 lines
15 KiB
PHP

<?php
/**
* @class XmlQueryParser
* @author zero (zero@nzeo.com)
* @brief query xml을 파싱하여 결과를 return
* @version 0.1
*
* @todo subquery나 union등의 확장 쿼리에 대한 지원이 필요
**/
class XmlQueryParser {
/**
* @brief 조건문에서 조건을 등호로 표시하는 변수
**/
var $cond_operation = array(
'equal' => '=',
'more' => '>=',
'excess' => '>',
'less' => '<=',
'below' => '<',
'notequal' => '!=',
'notnull' => 'is not null',
'null' => 'is null',
);
/**
* @brief 쿼리 파일을 찾아서 파싱하고 cacheing한다
**/
function parse($query_id, $xml_file, $cache_file) {
// query xml 파일을 찾아서 파싱, 결과가 없으면 return
$buff = FileHandler::readFile($xml_file);
$oXml = new XmlParser();
$xml_obj = $oXml->parse($buff);
if(!$xml_obj) return;
// 쿼리 스크립트를 만들때 필요한 변수들
$filter_script = $notnull_script = $column_script = $default_script = '';
// insert, update, delete, select등의 action
$action = strtolower($xml_obj->query->attrs->action);
if(!$action) return;
// 테이블 정리 (배열코드로 변환)
$tables = $this->_getTablesScript($xml_obj);
// 컬럼 정리
$column_script = $this->_getColumnsScript($xml_obj, $default_script, $notnull_script, $filter_script, $action);
// 조건절 정리
$condition_script = $this->_getConditionScript($xml_obj, $default_script, $notnull_script, $filter_script);
// group 정리
$group_script = $this->_getGroupScript($xml_obj);
// 네비게이션 정리
$navigation_script = $this->_getNavigationScript($xml_obj);
// 캐쉬 내용 작성
$buff =
sprintf(
'<?php if(!__ZB5__) exit();'."\n".
'$pass_quotes = array();'."\n".
'$id = \'%s\';'."\n".
'$action = \'%s\';'."\n".
'$tables = array(%s);'."\n".
'%s'."\n".
'%s'."\n".
'%s'."\n".
'%s'."\n".
'%s'."\n".
'%s'."\n".
'$group_script = \'%s\''."\n".
'?>',
$query_id,
$action,
$tables,
$default_script,
$column_script,
$notnull_script,
$filter_script,
$condition_script,
$navigation_script,
$group_script
);
// 저장
FileHandler::writeFile($cache_file, $buff);
}
/**
* @brief column, condition등의 key에 default 값을 세팅
**/
function _getDefaultCode($name, $value) {
if(!$value) return;
if(substr($value, -1)!=')') return sprintf('if(!$args->%s) $args->%s = \'%s\';'."\n", $name, $name, $value);
$str_pos = strpos($value, '(');
$func_name = substr($value, 0, $str_pos);
$args = substr($value, $str_pos+1, strlen($value)-1);
switch($func_name) {
case 'ipaddress' :
$val = '\''.$_SERVER['REMOTE_ADDR'].'\'';
break;
case 'unixtime' :
$val = 'time()';
break;
case 'curdate' :
$val = 'date("YmdHis")';
break;
case 'sequence' :
$val = '$this->getNextSequence()';
break;
case 'plus' :
$args = abs($args);
$val = sprintf('\'%s+%d\'', $name, $args);
$pass_quotes = true;
break;
case 'minus' :
$args = abs($args);
$val = sprintf('\'%s-%d\'', $name, $args);
$pass_quotes = true;
break;
}
$output = sprintf('if(!$args->%s) $args->%s = %s;'."\n", $name, $name, $val);
if($pass_quotes) $output .= sprintf('$pass_quotes[] = \'%s\';'."\n",$name);
return $output;
}
/**
* @brief 필터 체크
**/
function _getFilterCode($key, $type, $minlength, $maxlength, $var='column', $notnull='') {
if(!$type||!$minlength||!$maxlength) return;
if(!$notnull) $notnull_code = sprintf('if($%s->%s) ', $var, $key);
return
sprintf(
'unset($output); %s$output = $this->_checkFilter(\'%s\', $%s->%s, \'%s\', \'%d\', \'%d\'); if(!$output->toBool()) return $output;'."\n",
$notnull_code,
$key,
$var,
$key,
$type,
(int)$minlength,
(int)$maxlength
);
}
/**
* @brief not null 체크된 항목에 대한 처리
**/
function _getNotNullCode($name, $var='column') {
return
sprintf(
'if(!$%s->%s) return new Object(-1, sprintf($lang->filter->isnull, $lang->%s?$lang->%s:\'%s\'));'."\n",
$var,
$name,
$name,
$name,
$name
);
}
/**
* @brief 대상 테이블에 대한 처리
**/
function _getTablesScript($xml_obj) {
$obj_tables = $xml_obj->query->tables->table;
if(!is_array($obj_tables)) $obj_tables = array('', $obj_tables);
foreach($obj_tables as $table_info) {
$name = trim($table_info->attrs->name);
if(!$name) continue;
$alias = trim($table_info->attrs->alias);
if(!$alias) $alias = $name;
$table_list[] = sprintf('\'%s\'=>\'%s\'', $name, $alias);
}
return implode(",",$table_list);
}
/**
* @brief 컬럼 처리
**/
function _getColumnsScript($xml_obj, &$default_script, &$notnull_script, &$filter_script, $action) {
$obj_columns = $xml_obj->query->columns->column;
if(!is_array($obj_columns)) $obj_columns = array('', $obj_columns);
foreach($obj_columns as $column_info) {
$name = trim($column_info->attrs->name);
if(!$name || $name == '*') continue;
$var = trim($column_info->attrs->var);
$alias = trim($column_info->attrs->alias);
if(!$alias) $alias = $name;
$default = trim($column_info->attrs->default);
$notnull = trim($column_info->attrs->notnull);
$filter_type = trim($column_info->attrs->filter);
$minlength = (int)trim($column_info->attrs->minlength);
$maxlength = (int)trim($column_info->attrs->maxlength);
$column_script .= sprintf('$column->%s = $args->%s;'."\n", $alias, $var?$var:$alias);
$invert_columns[] = sprintf('\'%s\'=>\'%s\'', $alias, $name);
$default_script .= $this->_getDefaultCode($alias, $default);
if($action != 'select') {
if($filter_type) $filter_script .= $this->_getFilterCode($alias, $filter_type, $minlength, $maxlength, 'column', $notnull);
if($notnull) $notnull_script .= $this->_getNotNullCode($alias);
}
}
if(is_array($invert_columns)) $column_script .= sprintf('$invert_columns = array(%s);'."\n", implode(',',$invert_columns));
return $column_script;
}
/**
* @brief 조건절 처리
**/
function _getConditionScript($xml_obj, &$default_script, &$notnull_script, &$filter_script) {
$cond_idx = 0;
$obj_conditions = $xml_obj->query->conditions->condition;
$condition_script = $condition = $this->_getConditionQuery($cond_idx++, $obj_conditions, NULL, $notnull_script, $filter_script);
$obj_groups = $xml_obj->query->conditions->group;
if(!is_array($obj_groups)) $obj_groups = array('', $obj_groups);
foreach($obj_groups as $obj_group) {
$group_pipe = $obj_group->attrs->pipe;
if(!$group_pipe) continue;
$buff = $this->_getConditionQuery($cond_idx++, $obj_group->condition, $group_pipe, $notnull_script, $filter_script);
$condition_script .= $buff;
}
$condition_script .= '$condition = $this->_combineCondition($cond_group, $group_pipe);'."\n";
return $condition_script;
}
/**
* @brief 조건문의 쿼리를 만들어 줌
**/
function _getConditionQuery($cond_idx, $obj, $group_pipe, &$notnull_script, &$filter_script) {
if(!is_array($obj)) $obj = array('', $obj);
$idx = 0;
foreach($obj as $obj_cond) {
$operation = $obj_cond->attrs->operation;
if(!$operation) continue;
$column = $obj_cond->attrs->column;
$var = $obj_cond->attrs->var;
$filter = $obj_cond->attrs->filter;
$notnull = $obj_cond->attrs->notnull;
$pipe = $obj_cond->attrs->pipe;
if(!$pipe) $pipe = 'and';
$default = $obj_cond->attrs->default;
// 비교 대상이 다른 혹은 같은 테이블의 column일 경우
if(eregi("\.", $var)) {
switch($operation) {
case 'in' :
$buff = sprintf('%s in (%s)', $column, $var);
break;
default :
$operation = $this->cond_operation[$operation];
if(!$operation) $operation = 'and';
$buff = sprintf('%s %s %s', $column, $operation, $var);
break;
}
$condition_script .= sprintf('$cond_group[%d][][\'%s\'] = \'%s\';'."\n",$cond_idx, $pipe, $buff);
// 입력받을 변수일 경우
} else {
switch($operation) {
case 'like' :
$buff = sprintf('sprintf("%s like \'%%%%%%s%%%%\' ", $this->addQuotes($args->%s))', $column, $var);
break;
case 'like_prefix' :
$buff = sprintf('sprintf("%s like \'%%s%%%%\' ", $this->addQuotes($args->%s))', $column, $var);
break;
case 'in' :
$buff = sprintf('sprintf("%s in (%%s) ", $this->addQuotes($args->%s))', $column, $var);
break;
case 'notnull' :
case 'null' :
$operation = $this->cond_operation[$operation];
unset($var);
$buff = sprintf('"%s %s "', $column, $operation);
break;
default :
$operation = $this->cond_operation[$operation];
if($default) $buff = sprintf('sprintf("%s %s \'%%s\' ", $args->%s?$this->addQuotes($args->%s):\'%s\')', $column, $operation, $var?$var:$column, $var?$var:$column, $default);
else $buff = sprintf('sprintf("%s %s \'%%s\' ", $this->addQuotes($args->%s))', $column, $operation, $var?$var:$column);
break;
}
$buff = sprintf('$cond_group[%d][][\'%s\'] = %s;'."\n",$cond_idx, $pipe, $buff);
if(!$notnull && $var) $buff = sprintf('if($args->%s) ', $var).$buff;
$condition_script .= $buff;
if($notnull) $notnull_script .= $this->_getNotNullCode($var?$var:$column, 'args');
if($filter) $filter_script .= $this->_getFilterCode($var, $filter, 0, 0, 'args', $notnull);
}
}
$condition_script .= sprintf('$group_pipe[%d] = \'%s\';'."\n", $cond_idx, $group_pipe);
return $condition_script;
}
/**
* @brief group by 쿼리 처리
**/
function _getGroupScript($xml_obj) {
$group_list = $xml_obj->query->groups->group;
if(!$group_list) return;
if(!is_array($group_list)) $group_list = array($group_list);
for($i=0;$i<count($group_list);$i++) {
$group = $group_list[$i];
$column = trim($group->attrs->column);
if(!$column) continue;
$group_column_list[] = $column;
}
if(count($group_column_list)) {
return ' group by '.implode(" , ", $group_column_list);
}
}
/**
* @brief page navigation 처리
**/
function _getNavigationScript($xml_obj) {
$obj_navigation = $xml_obj->query->navigation;
if(!$obj_navigation) return;
$obj_index = $obj_navigation->index->attrs;
$index_list = array();
if(!is_array($obj_index)) $obj_index = array('', $obj_index);
foreach($obj_index as $index_info) {
$var = trim($index_info->var);
if(!$var) continue;
$default = trim($index_info->default);
$order = trim($index_info->order);
if(!$order) $order = 'asc';
$navigation_script .= sprintf('$navigation->index[] = array($args->%s?$args->%s:\'%s\', \'%s\');'."\n", $var, $var, $default, $order);
}
$obj_list_count = $obj_navigation->list_count->attrs;
$count_var = $obj_list_count->var;
$count_default = $obj_list_count->default;
if($count_var) $navigation_script .= sprintf('$navigation->list_count = $args->%s?$args->%s%s;'."\n", $count_var, $count_var, $count_default?':'.$count_default:'');
$obj_page_count = $obj_navigation->page_count->attrs;
$count_var = $obj_page_count->var;
$count_default = $obj_page_count->default;
if($count_var) $navigation_script .= sprintf('$navigation->page_count = $args->%s?$args->%s%s;'."\n", $count_var, $count_var, $count_default?':'.$count_default:'');
$obj_page = $obj_navigation->page->attrs;
$page_var = $obj_page->var;
$page_default = $obj_page->default;
if($page_var) $navigation_script .= sprintf('$navigation->page = $args->%s?$args->%s%s;'."\n", $page_var, $page_var, $page_default?':'.$page_default:'');
return $navigation_script;
}
}
?>