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Issue 2759: Update code comments for database classes
git-svn-id: http://xe-core.googlecode.com/svn/branches/luminous@12416 201d5d3c-b55e-5fd7-737f-ddc643e51545
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ucorina
parent
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commit
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1 changed files with 104 additions and 91 deletions
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@ -1,109 +1,122 @@
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<?php
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if(!defined('__XE_LOADED_XML_CLASS__')){
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define('__XE_LOADED_XML_CLASS__', 1);
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/**
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* File containing the XE 1.5 XmlQueryParserClass
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*/
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require(_XE_PATH_.'classes/xml/xmlquery/tags/query/QueryTag.class.php');
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if(!defined('__XE_LOADED_XML_CLASS__')){
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define('__XE_LOADED_XML_CLASS__', 1);
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require(_XE_PATH_.'classes/xml/xmlquery/tags/table/TableTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/table/HintTableTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/table/TablesTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/query/QueryTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/table/TableTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/table/HintTableTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/table/TablesTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/column/ColumnTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/column/SelectColumnTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/column/InsertColumnTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/column/InsertColumnTagWithoutArgument.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/column/UpdateColumnTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/column/SelectColumnsTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/column/InsertColumnsTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/column/UpdateColumnsTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/column/SelectColumnTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/column/InsertColumnTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/column/InsertColumnTagWithoutArgument.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/column/UpdateColumnTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/column/SelectColumnsTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/column/InsertColumnsTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/column/UpdateColumnsTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/condition/ConditionTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/condition/ConditionsTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/condition/JoinConditionsTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/condition/ConditionGroupTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/condition/ConditionTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/condition/ConditionsTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/condition/JoinConditionsTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/condition/ConditionGroupTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/group/GroupsTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/group/GroupsTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/navigation/NavigationTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/navigation/IndexTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/navigation/NavigationTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/navigation/IndexTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/tags/navigation/LimitTag.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/queryargument/QueryArgument.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/queryargument/SortQueryArgument.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/queryargument/QueryArgument.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/queryargument/SortQueryArgument.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/queryargument/validator/QueryArgumentValidator.class.php');
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require(_XE_PATH_.'classes/xml/xmlquery/queryargument/DefaultValue.class.php');
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}
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require(_XE_PATH_.'classes/xml/xmlquery/queryargument/DefaultValue.class.php');
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}
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/**
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* New XmlQueryParser class
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* Parses XE XML query files
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*
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* @author Corina Udrescu (corina.udrescu@arnia.ro)
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* @package dbclasses
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*/
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class XmlQueryParser extends XmlParser {
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/**
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* New XmlQueryParser class
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* @author NHN (developers@xpressengine.com)
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* @brief case to parse XE xml query
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* @version 0.1
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*
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* @todo need to support extend query such as subquery, union
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* @todo include info about column types for parsing user input
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* Create XmlQueryParser instance for Singleton
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* @return XmlQueryParser object
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*/
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class XmlQueryParser extends XmlParser {
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/**
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* constructor
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* @return void
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*/
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function XmlQueryParser(){
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}
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/**
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* Create XmlQueryParser instance for Singleton
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* @return XmlQueryParser object
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*/
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function &getInstance(){
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static $theInstance = null;
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if(!isset($theInstance)){
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$theInstance = new XmlQueryParser();
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}
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return $theInstance;
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}
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/**
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* 1. Read xml file<br />
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* 2. Check the action<br />
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* 3. Parsing and write a cache file<br />
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* @return QueryParser object
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*/
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function &parse_xml_query($query_id, $xml_file, $cache_file)
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function &getInstance()
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{
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// Read xml file
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$xml_obj = $this->getXmlFileContent($xml_file);
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// insert, update, delete, select action
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$action = strtolower($xml_obj->query->attrs->action);
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if(!$action) return;
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// Write query cache file
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$parser = new QueryParser($xml_obj->query);
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FileHandler::writeFile($cache_file, $parser->toString());
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return $parser;
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}
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/**
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* Query XML file parsing
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* @return QueryParser object
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*/
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function parse($query_id = NULL, $xml_file = NULL, $cache_file = NULL)
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{
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$this->parse_xml_query($query_id, $xml_file, $cache_file);
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static $theInstance = NULL;
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if(!isset($theInstance)){
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$theInstance = new XmlQueryParser();
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}
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return $theInstance;
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}
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/**
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* Return XML file content
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* @return array|NULL Returns a resultant data object or NULL in case of error
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*/
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function getXmlFileContent($xml_file){
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$buff = FileHandler::readFile($xml_file);
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$xml_obj = parent::parse($buff);
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if(!$xml_obj) return;
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unset($buff);
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return $xml_obj;
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}
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}
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/**
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* Parses an XML query file
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*
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* 1. Read xml file <br />
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* 2. Check the action <br />
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* 3. Parse and write cache file <br />
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*
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* @param $query_id
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* @param $xml_file
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* @param $cache_file
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*
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* @return QueryParser object
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*/
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function &parse_xml_query($query_id, $xml_file, $cache_file)
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{
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// Read xml file
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$xml_obj = $this->getXmlFileContent($xml_file);
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// insert, update, delete, select action
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$action = strtolower($xml_obj->query->attrs->action);
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if(!$action) return;
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// Write query cache file
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$parser = new QueryParser($xml_obj->query);
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FileHandler::writeFile($cache_file, $parser->toString());
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return $parser;
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}
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/**
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* Override for parent "parse" method
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*
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* @param null $query_id
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* @param null $xml_file
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* @param null $cache_file
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*
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* @return void
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*/
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function parse($query_id = NULL, $xml_file = NULL, $cache_file = NULL)
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{
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$this->parse_xml_query($query_id, $xml_file, $cache_file);
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}
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/**
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* Returns XML file contents as an object
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* or NULL in case of error
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*
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* @param $xml_file
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* @return array|NULL
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*/
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function getXmlFileContent($xml_file)
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{
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$buff = FileHandler::readFile($xml_file);
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$xml_obj = parent::parse($buff);
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if(!$xml_obj) return;
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unset($buff);
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return $xml_obj;
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}
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}
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?>
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