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Query.php
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2004-03-24
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<?php
// +----------------------------------------------------------------------+
// | PHP Version 4 |
// +----------------------------------------------------------------------+
// | Copyright (c) 1997-2003 The PHP Group |
// +----------------------------------------------------------------------+
// | This source file is subject to version 2.02 of the PHP license, |
// | that is bundled with this package in the file LICENSE, and is |
// | available at through the world-wide-web at |
// | http://www.php.net/license/2_02.txt. |
// | If you did not receive a copy of the PHP license and are unable to |
// | obtain it through the world-wide-web, please send a note to |
// | license@php.net so we can mail you a copy immediately. |
// +----------------------------------------------------------------------+
// | Author: Lorenzo Alberton <l.alberton at quipo.it> |
// +----------------------------------------------------------------------+
//
// $Id: Query.php,v 1.25 2004/03/19 01:07:02 quipo Exp $
//
// This is just a port of DB_QueryTool, originally written by
// Wolfram Kriesing and Paolo Panto, vision:produktion <wk@visionp.de>
// All the praises go to them :)
//
require_once 'PEAR.php';
require_once 'MDB.php';
/**
* this class should be extended
*
* @package MDB_QueryTool
* @access public
* @author Lorenzo Alberton
*/
class MDB_QueryTool_Query
{
/**
* @var string the name of the primary column
*/
var $primaryCol = 'id';
/**
* @var string the current table the class works on
*/
var $table = '';
/**
* @var string the name of the sequence for this table
*/
var $sequenceName = null;
/**
* @var object the db-object, a PEAR::Mdb-object instance
*/
var $db = null;
/**
* @var string the where condition
* @access private
*/
var $_where = '';
/**
* @var string the order condition
* @access private
*/
var $_order = '';
/**
* @var string the having definition
* @access private
*/
var $_having = '';
/**
* @var array contains the join content
* the key is the join type, for now we have 'default' and 'left'
* inside each key 'table' contains the table
* key 'where' contains the where clause for the join
* @access private
*/
var $_join = array();
/**
* @var string which column to index the result by
* @access private
*/
var $_index = null;
/**
* @var string the group-by clause
* @access private
*/
var $_group = '';
/**
* @var array the limit
* @access private
*/
var $_limit = array();
/**
* @var boolean if to use the MDB_QueryTool_Result as a result or not
* @access private
*/
var $_useResult = false;
/**
* @var array the metadata temporary saved
* @access private
*/
var $_metadata = array();
/**
* @var string (?)
* @access private
*/
var $_lastQuery = null;
/**
* @var string the rows that shall be selected
* @access private
*/
var $_select = '*';
/**
* @var string
* @access private
*/
var $_dontSelect = '';
/**
* @var array this array saves different modes in which this class works
* i.e. 'raw' means no quoting before saving/updating data
* @access private
*/
var $options = array( 'raw' => false,
'verbose' => true, // set this to false in a productive environment
// it will produce error-logs if set to true
'useCache' => false,
'logFile' => false
);
/**
* this array contains information about the tables
* those are
* 'name' - the real table name
* 'shortName' - the short name used, so that when moving the table i.e.
* onto a provider's db and u have to rename the tables to longer names
* this name will be relevant, i.e. when autoJoining, i.e. a table name
* on your local machine is: 'user' but online it has to be 'applName_user'
* then the shortName will be used to determine if a column refers to another
* table, if the colName is 'user_id', it knows the shortName 'user' refers to the table
* 'applName_user'
*/
var $tableSpec = array();
/**
* this is the regular expression that shall be used to find a table's shortName
* in a column name, the string found by using this regular expression will be removed
* from the column name and it will be checked if it is a table name
* i.e. the default '/_id$/' would find the table name 'user' from the column name 'user_id'
*
* @access private
*/
var $_tableNameToShortNamePreg = '/^.*_/';
/**
* var array this array caches queries that have already been built once
* to reduce the execution time
* @access private
*/
var $_queryCache = array();
/**
* The object that contains the log-instance
* @access private
*/
var $_logObject = null;
/**
* Some internal data the logging needs
* @access private
*/
var $_logData = array();
/**
* this is the constructor, as it will be implemented in ZE2 (php5)
*
* @param object db-object
* @param array options array
* @access public
*/
/*
function __construct($dsn=false, $options=array())
{
if (!isset($options['autoConnect'])) {
$autoConnect = true;
} else {
$autoConnect = $options['autoConnect'];
}
if (isset($options['errorCallback'])) {
$this->setErrorCallback($options['errorCallback']);
}
if (isset($options['errorSetCallback'])) {
$this->setErrorSetCallback($options['errorSetCallback']);
}
if (isset($options['errorLogCallback'])) {
$this->setErrorLogCallback($options['errorLogCallback']);
}
if ($autoConnect && $dsn) {
$this->connect($dsn, $options);
}
if (is_null($this->sequenceName)) {
$this->sequenceName = $this->table;
}
}
*/
/**
* @param mixed $dsn DSN string, DSN array or MDB object
* @param array $options
* @access public
*/
function MDB_QueryTool_Query($dsn=false, $options=array())
{
//$this->__construct($dsn, $options);
if (!isset($options['autoConnect'])) {
$autoConnect = true;
} else {
$autoConnect = $options['autoConnect'];
}
if (isset($options['errorCallback'])) {
$this->setErrorCallback($options['errorCallback']);
}
if (isset($options['errorSetCallback'])) {
$this->setErrorSetCallback($options['errorSetCallback']);
}
if (isset($options['errorLogCallback'])) {
$this->setErrorLogCallback($options['errorLogCallback']);
}
if ($autoConnect && $dsn) {
$this->connect($dsn, $options);
}
if (is_null($this->sequenceName)) {
$this->sequenceName = $this->table;
}
}
/**
* use this method if you want to connect manually
* @param mixed $dsn DSN string, DSN array or MDB object
* @param array $options
*/
function connect($dsn, $options=array())
{
$res = $this->db = &MDB::connect($dsn, $options);
if (MDB::isError($res)) {
// FIXXME what shall we do here?
$this->_errorLog($res->getUserInfo());
} else {
$this->db->setFetchMode(MDB_FETCHMODE_ASSOC);
}
}
/**
* @return object MDB Object
* @access public
*/
function &getDbInstance()
{
return $this->db;
}
/**
* Setup using an existing connection.
* this also sets the MDB_FETCHMODE_ASSOC since this class
* needs this to be set!
*
* @param object a reference to an existing DB-object
* @return void
*/
function setDbInstance( &$dbh)
{
$this->db =& $dbh;
$this->db->setFetchMode(MDB_FETCHMODE_ASSOC);
}
/**
* get the data of a single entry
* if the second parameter is only one column the result will be returned
* directly not as an array!
*
* @param integer the id of the element to retreive
* @param string if this is given only one row shall be returned,
* directly, not an array
* @return mixed (1) an array of the retreived data
* (2) if the second parameter is given and its only one column,
* only this column's data will be returned
* (3) false in case of failure
* @access public
*/
function get($id, $column='')
{
$id = trim($id);
$column = trim($column);
$table = $this->table;
$getMethod = 'getRow';
if ($column && !strpos($column, ',')) { // if only one column shall be selected
$getMethod = 'getOne';
}
// we dont use 'setSelect' here, since this changes the setup of the class, we
// build the query directly
// if $column is '' then _buildSelect selects '*' anyway, so that's the same behaviour as before
$query['select'] = $this->_buildSelect($column);
$query['where'] = $this->_buildWhere($this->table.'.'.$this->primaryCol.'='.$this->_quote($id));
$queryString = $this->_buildSelectQuery($query);
return $this->returnResult($this->execute($queryString, $getMethod));
}
/**
* gets the data of the given ids
*
* @param array this is an array of ids to retreive
* @param string the column to search in for
* @return mixed an array of the retreived data, or false in case of failure
* when failing an error is set in $this->_error
* @access public
*/
function getMultiple($ids, $column='')
{
$col = $this->primaryCol;
if ($column) {
$col = $column;
}
// FIXXME if $ids has no table.col syntax and we are using joins, the table better be put in front!!!
$ids = $this->_quoteArray($ids);
$query['where'] = $this->_buildWhere($col.' IN ('.implode(',', $ids).')');
$queryString = $this->_buildSelectQuery($query);
return $this->returnResult($this->execute($queryString));
}
/**
* get all entries from the DB
* for sorting use setOrder!!!, the last 2 parameters are deprecated
*
* @param int to start from
* @param int the number of rows to show
* @return mixed an array of the retreived data, or false in case of failure
* when failing an error is set in $this->_error
* @access public
*/
function getAll($from=0, $count=0, $method='getAll')
{
$query = array();
if ($count) {
$query = array('limit' => array($from, $count));
}
return $this->returnResult($this->execute($this->_buildSelectQuery($query), $method));
}
/**
* this method only returns one column, so the result will be a one dimensional array
* this does also mean that using setSelect() should be set to *one* column, the one you want to
* have returned a most common use case for this could be:
* $table->setSelect('id');
* $ids = $table->getCol();
* OR
* $ids = $table->getCol('id');
* so ids will ba an array with all the id's
*
* @param string the column that shall be retreived
* @param int to start from
* @param int the number of rows to show
* @return mixed an array of the retreived data, or false in case of failure
* when failing an error is set in $this->_error
* @access public
*/
function getCol($column=null, $from=0, $count=0)
{
$query = array();
if ($column != null) {
// by using _buildSelect() I can be sure that the table name will not be ambiguous
// i.e. in a join, where all the joined tables have a col 'id'
// _buildSelect() will put the proper table name in front in case there is none
$query['select'] = $this->_buildSelect(trim($column));
}
if ($count) {
$query['limit'] = array($from, $count);
}
return $this->returnResult($this->execute($this->_buildSelectQuery($query), 'getCol'));
}
/**
* get the number of entries
*
* @return mixed an array of the retreived data, or false in case of failure
* when failing an error is set in $this->_error
* @access public
*/
function getCount()
{
/* the following query works on mysql
SELECT count(DISTINCT image.id) FROM image2tree
RIGHT JOIN image ON image.id = image2tree.image_id
the reason why this is needed - i just wanted to get the number of rows that do exist if the result is grouped by image.id
the following query is what i tried first, but that returns the number of rows that have been grouped together
for each image.id
SELECT count(*) FROM image2tree
RIGHT JOIN image ON image.id = image2tree.image_id GROUP BY image.id
so that's why we do the following, i am not sure if that is standard SQL and absolutley correct!!!
*/
//FIXXME see comment above if this is absolutely correct!!!
if ($group = $this->_buildGroup()) {
$query['select'] = 'COUNT(DISTINCT '.$group.')';
$query['group'] = '';
} else {
$query['select'] = 'COUNT(*)';
}
$query['order'] = ''; // order is not of importance and might freak up the special group-handling up there, since the order-col is not be known
/*# FIXXME use the following line, but watch out, then it has to be used in every method, or this
# value will be used always, simply try calling getCount and getAll afterwards, getAll will return the count :-)
# if getAll doenst use setSelect!!!
*/
//$this->setSelect('count(*)');
$queryString = $this->_buildSelectQuery($query);
return($res=$this->execute($queryString, 'getOne')) ? $res : 0;
}
/**
* return an empty element where all the array elements do already exist
* corresponding to the columns in the DB
*
* @return array an empty, or pre-initialized element
* @access public
*/
function getDefaultValues()
{
$ret = array();
// here we read all the columns from the DB and initialize them
// with '' to prevent PHP-warnings in case we use error_reporting=E_ALL
foreach ($this->metadata() as $aCol => $x) {
$ret[$aCol] = '';
}
return $ret;
}
/**
* this is just for BC
* @deprecated
*/
function getEmptyElement()
{
$this->getDefaultValues();
}
/**
* Render the current query and return it as a string.
*
* @return string the current query
*/
function getQueryString()
{
$ret = $this->_buildSelectQuery();
if (is_string($ret)) {
$ret = trim($ret);
}
return $ret;
}
/**
* save data, calls either update or add
* if the primaryCol is given in the data this method knows that the
* data passed to it are meant to be updated (call 'update'), otherwise it will
* call the method 'add'.
* If you dont like this behaviour simply stick with the methods 'add'
* and 'update' and ignore this one here.
* This method is very useful when you have validation checks that have to
* be done for both adding and updating, then you can simply overwrite this
* method and do the checks in here, and both cases will be validated first.
*
* @param array contains the new data that shall be saved in the DB
* @return mixed the data returned by either add or update-method
* @access public
*/
function save($data)
{
if (isset($data[$this->primaryCol]) && $data[$this->primaryCol]) {
return $this->update($data);
}
return $this->add($data);
}
/**
* update the member data of a data set
*
* @param array contains the new data that shall be saved in the DB
* the id has to be given in the field with the key 'ID'
* @return mixed true on success, or false otherwise
* @access public
*/
function update($newData)
{
$query = array();
// do only set the 'where' part in $query, if a primary column is given
// if not the default 'where' clause is used
if (isset($newData[$this->primaryCol])) {
//$this->_errorSet('Error updating the new member.');
//return false;
$query['where'] = $this->primaryCol.'='.$this->_quote($newData[$this->primaryCol]);
}
$newData = $this->_checkColumns($newData, 'update');
$values = array();
foreach ($newData as $key => $aData) { // quote the data
//$values[] = "{$this->table}.$key=" . $this->_quote($aData);
$values[] = "$key=" . $this->_quote($aData);
}
$query['set'] = implode(',', $values);
$updateString = $this->_buildUpdateQuery($query);
return $this->execute($updateString, 'query') ? true : false;
}
/**
* add a new member in the DB
*
* @param array contains the new data that shall be saved in the DB
* @return mixed the inserted id on success, or false otherwise
* @access public
*/
function add($newData)
{
unset($newData[$this->primaryCol]);
$newData = $this->_checkColumns($newData,'add');
$newData = $this->_quoteArray($newData);
if ($this->primaryCol) { // do only use the sequence if a primary column is given
// otherwise the data are written as given
$id = (int)$this->db->nextId($this->sequenceName);
$newData[$this->primaryCol] = (int)$id;
} else {
// if no primary col is given return true on success
$id = true;
}
$query = sprintf( 'INSERT INTO %s (%s) VALUES (%s)',
$this->table,
implode(',', array_keys($newData)),
implode(',', $newData)
);
return $this->execute($query, 'query') ? $id : false;
}
/**
* adds multiple new members in the DB
*
* @param array contains an array of new data that shall be saved in the DB
* the key-value pairs have to be the same for all the data!!!
* @return mixed the inserted ids on success, or false otherwise
* @access public
*/
function addMultiple($data)
{
if (!sizeof($data)) {
return false;
}
// the inserted ids which will be returned or if no primaryCol is given
// we return true by default
$retIds = $this->primaryCol ? array() : true;
$allData = array(); // each row that will be inserted
foreach ($data as $key => $aData) {
unset($aData[$this->primaryCol]); // we are adding a new data set, so be sure
// there is no value for the primary col
$aData = $this->_checkColumns($aData,'add');
$aData = $this->_quoteArray($aData);
// do only use the sequence if a primary column is given
// otherwise the data are written as given
if ($this->primaryCol) {
$id = $this->db->nextId($this->sequenceName);
$aData[$this->primaryCol] = $this->_quote($id);
$retIds[] = $id;
}
$allData[] = '('.implode(',', $aData).')';
}
$query = sprintf( 'INSERT INTO %s (%s) VALUES %s',
$this->table ,
implode(',', array_keys($aData)) ,
implode(',', $allData)
);
return $this->execute($query, 'query') ? $retIds : false;
}
/**
* removes a member from the DB
*
* @param mixed integer/string - the value of the column that shall be removed
* array - multiple columns that shall be matched, the second parameter will be ommited
* @param string the column to match the data against, only if $data is not an array
* @return boolean
* @access public
*/
function remove($data, $whereCol='')
{
//$raw = $this->getOption('raw');
if (is_array($data)) {
//FIXXME check $data if it only contains columns that really exist in the table
$wheres = array();
foreach ($data as $key => $val) {
$wheres[] = $key .'='. $this->_quote($val);
}
$whereClause = implode(' AND ', $wheres);
} else {
if ($whereCol=='') {
$whereCol = $this->primaryCol;
}
$whereClause = $whereCol.'='. $this->_quote($data);
}
$query = sprintf( 'DELETE FROM %s WHERE %s',
$this->table,
$whereClause
);
return $this->execute($query, 'query') ? true : false;
// i think this method should return the ID's that it removed, this way we could simply use the result
// for further actions that depend on those id ... or? make stuff easier, see ignaz::imail::remove
}
/**
* empty a table
*
* @return resultSet or false on error [execute() result]
* @access public
*/
function removeAll()
{
$query = 'DELETE FROM ' . $this->table;
return $this->execute($query, 'query') ? true : false;
}
/**
* remove the datasets with the given ids
*
* @param array the ids to remove
* @return resultSet or false on error [execute() result]
* @access public
*/
function removeMultiple($ids, $colName='')
{
if ($colName=='') {
$colName = $this->primaryCol;
}
$ids = $this->_quoteArray($ids);
$query = sprintf( 'DELETE FROM %s WHERE %s IN (%s)', //IS THIS PORTABLE???????????????????
$this->table,
$colName,
implode(',', $ids)
);
return $this->execute($query, 'query') ? true : false;
}
/**
* removes a member from the DB and calls the remove methods of the given objects
* so all rows in another table that refer to this table are erased too
*
* @param integer the value of the primary key
* @param string the column name of the tables with the foreign keys
* @param object just for convinience, so nobody forgets to call this method
* with at least one object as a parameter
* @return boolean
* @access public
*/
function removePrimary($id, $colName, $atLeastOneObject)
{
$argCounter = 2; // we have 2 parameters that need to be given at least
// func_get_arg returns false and a warning if there are no more parameters, so
// we suppress the warning and check for false
while($object=@func_get_arg($argCounter++)) {
//FIXXXME let $object also simply be a table name
if (!$object->remove($id, $colName)) {
//FIXXXME do this better
$this->_errorSet("Error removing '$colName=$id' from table {$object->table}.");
return false;
}
}
if (!$this->remove($id)) {
return false;
}
return true;
}
/**
* sets query limits
*
* @param integer $from start index
* @param integer $count number of results
* @access public
*/
function setLimit($from=0, $count=0)
{
if ($from==0 && $count==0) {
$this->_limit = array();
} else {
$this->_limit = array($from, $count);
}
}
/**
* gets query limits
*
* @return array (start index, number of results)
* @access public
*/
function getLimit()
{
return $this->_limit;
}
/**
* sets the where condition which is used for the current instance
*
* @param string the where condition, this can be complete like 'X=7 AND Y=8'
* @access public
*/
function setWhere($whereCondition='')
{
$this->_where = $whereCondition;
//FIXXME parse the where condition and replace ambigious column names, such as "name='Deutschland'" with "country.name='Deutschland'"
// then the users dont have to write that explicitly and can use the same name as in the setOrder i.e. setOrder('name,_net_name,_netPrefix_prefix');
}
/**
* gets the where condition which is used for the current instance
*
* @return string the where condition, this can be complete like 'X=7 AND Y=8'
* @access public
*/
function getWhere()
{
return $this->_where;
}
/**
* only adds a string to the where clause
*
* @param string the where clause to add to the existing one
* @param string the condition for how to concatenate the new where clause
* to the existing one
* @access public
*/
function addWhere($where , $condition='AND')
{
if ($this->getWhere()) {
$where = $this->getWhere().' '.$condition.' '.$where;
}
$this->setWhere($where);
}
/**
* add a where-like clause which works like a search for the given string
* i.e. calling it like this:
* $this->addWhereSearch('name', 'otto hans')
* produces a where clause like this one
* LOWER(name) LIKE "%otto%hans%"
* so the search finds the given string
*
* @param string the column to search in for
* @param string the string to search for
* @access public
*/
function addWhereSearch($column, $string, $condition='AND')
{
// if the column doesnt contain a tablename use the current table name in case it is a defined column
// to prevent ambigious rows
if (strpos($column, '.') === false) {
$meta = $this->metadata();
if (isset($meta[$column])) {
$column = $this->table .'.'. trim($column);
}
}
$string = $this->_quote('%'.str_replace(' ', '%', strtolower($string)).'%');
$this->addWhere("LOWER($column) LIKE $string", $condition);
}
/**
* sets the order condition which is used for the current instance
*
* @param string the where condition, this can be complete like 'X=7 AND Y=8'
* @access public
*/
function setOrder($orderCondition='', $desc=false)
{
$this->_order = $orderCondition . ($desc ? ' DESC' : '');
}
/**
* Add a order parameter to the query.
*
* @param string the where condition, this can be complete like 'X=7 AND Y=8'
* @access public
*/
function addOrder($orderCondition='', $desc=false)
{
$order = $orderCondition . ($desc ? ' DESC' : '');
if ($this->_order) {
$this->_order = $this->_order .','. $order;
} else {
$this->_order = $order;
}
}
/**
* gets the order condition which is used for the current instance
*
* @return string the order condition, this can be complete like 'ID,TIMESTAMP DESC'
* @access public
*/
function getOrder()
{
return $this->_order;
}
/**
* sets the having definition
*
* @param string the having definition
* @access public
*/
function setHaving($having='')
{
$this->_having = $having;
}
/**
* gets the having definition which is used for the current instance
*
* @return string the having definition
* @access public
*/
function getHaving()
{
return $this->_having;
}
/**
* Extend the current having clause. This is very useful, when you are building
* this clause from different places and dont want to overwrite the currently
* set having clause, but extend it.
*
* @param string this is a having clause, i.e. 'column' or 'table.column' or 'MAX(column)'
* @param string the connection string, which usually stays the default, which is ',' (a comma)
* @access public
*/
function addHaving($what='*', $connectString=' AND ')
{
if ($this->_having) {
$this->_having = $this->_having . $connectString . $what;
} else {
$this->_having = $what;
}
}
/**
* sets a join-condition
*
* @param mixed either a string or an array that contains
* the table(s) to join on the current table
* @param string the where clause for the join
* @access public
*/
function setJoin($table=null, $where=null, $joinType='default')
{
//FIXXME make it possible to pass a table name as a string like this too 'user u' where u is the string that can be used
// to refer to this table in a where/order or whatever condition
// this way it will be possible to join tables with itself, like setJoin(array('user u', 'user u1'))
// this wouldnt work yet, but for doing so we would need to change the _build methods too!!!
// because they use getJoin('tables') and this simply returns all the tables in use but dont take care of the mentioned syntax
if ($table==null || $where==null) { // remove the join if not sufficient parameters are given
$this->_join[$joinType] = array();
return;
}
settype($table, 'array');
$this->_join[$joinType]['table'] = $table;
/* this causes problems if we use the order-by, since it doenst know the name to order it by ... :-)
// replace the table names with the internal name used for the join
// this way we can also join one table multiple times if it will be implemented one day
$this->_join['where'] = preg_replace('/'.$table.'/','j1', $where);
*/
$this->_join[$joinType]['where'] = $where;
}
/**
* if you do a left join on $this->table you will get all entries
* from $this->table, also if there are no entries for them in the joined table
* if both parameters are not given the left-join will be removed
* NOTE: be sure to only use either a right or a left join
*
* @param string the table(s) to be left-joined
* @param string the where clause for the join
* @access public
*/
function setLeftJoin($table=null, $where=null)
{
$this->setJoin($table, $where, 'left');
}
/**
*
* @param string the table(s) to be left-joined
* @param string the where clause for the join
* @param string join type
* @access public
*/
function addLeftJoin($table, $where, $type='left')
{
// init value, to prevent E_ALL-warning
if (!isset($this->_join[$type]) || !$this->_join[$type]) {
$this->_join[$type] = array('table' => array(),
'where' => '');
}
$this->_join[$type]['table'] = array_merge($this->_join[$type]['table'], $table);
if (!is_array($this->_join[$type]['where'])) {
settype($this->_join[$type]['where'], 'array');
}
$this->_join[$type]['where'][] = $where;
}
/**
* see setLeftJoin for further explaination on what a left/right join is
* NOTE: be sure to only use either a right or a left join
//FIXXME check if the above sentence is necessary and if sql doesnt allow the use of both
*
* @param string the table(s) to be right-joined
* @param string the where clause for the join
* @see setLeftJoin()
* @access public
*/
function setRightJoin($table=null, $where=null)
{
$this->setJoin($table, $where, 'right');
}
/**
* gets the join-condition
*
* @return array gets the join parameters
* @access public
*/
function getJoin($what=null)
{
// if the user requests all the join data or if the join is empty, return it
if ($what == null || !$this->_join) {
$ret = $this->_join;
}
switch(strtolower($what)) {
case 'table':
case 'tables':
$ret = array();
foreach ($this->_join as $aJoin) {
if (isset($aJoin['table']) && sizeof($aJoin['table'])) {
$ret = array_merge($ret, $aJoin['table']);
}
}
break;
case 'right': // return right-join data only
case 'left': // return left join data only
break;
}
return $ret;
}
/**
* adds a table and a where clause that shall be used for the join
* instead of calling
* setJoin(array(table1,table2),'<where clause1> AND <where clause2>')
* you can also call
* setJoin(table1,'<where clause1>')
* addJoin(table2,'<where clause2>')
* or where it makes more sense is to build a query which is build out of a
* left join and a standard join
* setLeftJoin(table1,'<where clause1>')
* // results in ... FROM $this->table LEFT JOIN table ON <where clause1>
* addJoin(table2,'<where clause2>')
* // results in ... FROM $this->table,table2 LEFT JOIN table ON <where clause1> WHERE <where clause2>
*
* @param array $table
* @param string $where
* @param string $type
* @access public
*/
function addJoin($table, $where, $type='default')
{
settype($table, 'array');
// init value, to prevent E_ALL-warning
if (!isset($this->_join[$type]) || !$this->_join[$type]) {
$this->_join[$type] = array('table'=>array(), 'where'=>'');
}
$this->_join[$type]['table'] = array_merge($this->_join[$type]['table'], $table);
$this->_join[$type]['where'] .= trim($this->_join[$type]['where']) ? ' AND '.$where : $where;
}
/**
* sets the table this class is currently working on
*
* @param string the table name
* @access public
*/
function setTable($table)
{
$this->table = $table;
}
/**
* gets the table this class is currently working on
*
* @return string the table name
* @access public
*/
function getTable()
{
return $this->table;
}
/**
* sets the group-by condition
*
* @param string the group condition
* @access public
*/
function setGroup($group='')
{
$this->_group = $group;
//FIXXME parse the condition and replace ambigious column names, such as "name='Deutschland'" with "country.name='Deutschland'"
// then the users dont have to write that explicitly and can use the same name as in the setOrder i.e. setOrder('name,_net_name,_netPrefix_prefix');
}
/**
* gets the group condition which is used for the current instance
*
* @return string the group condition
* @access public
*/
function getGroup()
{
return $this->_group;
}
/**
* limit the result to return only the columns given in $what
* @access public
*/
function setSelect($what='*')
{
$this->_select = $what;
}
/**
* add a string to the select part of the query
*
* add a string to the select-part of the query and connects it to an existing
* string using the $connectString, which by default is a comma.
* (SELECT xxx FROM - xxx is the select-part of a query)
*
* @param string the string that shall be added to the select-part
* @param string the string to connect the new string with the existing one
* @return void
* @access public
*/
function addSelect($what='*', $connectString=',')
{
// if the select string is not empty add the string, otherwise simply set it
if ($this->_select) {
$this->_select = $this->_select . $connectString . $what;
} else {
$this->_select = $what;
}
}
/**
* @access public
*/
function getSelect()
{
return $this->_select;
}
/**
* @access public
*/
function setDontSelect($what='')
{
$this->_dontSelect = $what;
}
/**
* @access public
*/
function getDontSelect()
{
return $this->_dontSelect;
}
/**
* reset all the set* settings, with no parameter given it resets all
*
* @return void
* @access public
*/
function reset($what=array())
{
if (sizeof($what) == 0) {
$what = array('select',
'dontSelect',
'group',
'having',
'limit',
'where',
'index',
'order',
'join',
'leftJoin',
'rightJoin');
}
foreach ($what as $aReset) {
$this->{'set'.ucfirst($aReset)}();
}
}
/**
* set mode the class shall work in
* currently we have the modes:
* 'raw' does not quote the data before building the query
*
* @param string the mode to be set
* @param mixed the value of the mode
* @return void
* @access public
*/
function setOption($option, $value)
{
$this->options[strtolower($option)] = $value;
}
/**
* @param string name of the option to retrieve
* @access public
*/
function getOption($option)
{
return $this->options[strtolower($option)];
}
/**
* quotes all the data in this array if we are not in raw mode!
* @access private
*/
function _quoteArray($data)
{
if (!$this->getOption('raw')) { //check added for gain in speed if $this->raw==true
foreach ($data as $key => $val) {
$data[$key] = $this->_quote($val);
}
}
return $data;
}
/**
* quotes all the data in this array if we are not in raw mode!
* @access private
*/
function _quote($data)
{
if (!$this->getOption('raw')) {
switch(gettype($data)) {
case 'array': return $this->_quoteArray($data);
break;
case 'boolean': return $this->db->getBooleanValue($data);
break;
case 'double': return $this->db->getFloatValue($data);
break;
case 'integer': return $this->db->getIntegerValue($data);
break;
case 'string': //if 'string' or 'unknown', quote as text
default: return $this->db->getTextValue($data);
}
}
}
/**
* checks if the columns which are given as the array's indexes really exist
* if not it will be unset anyway
*
* @access public
* @param string the actual message, first word should always be the method name,
* to build the message like this: className::methodname
* @param integer the line number
*/
function _checkColumns($newData, $method='unknown')
{
if (!$meta = $this->metadata()) {
// if no metadata available, return data as given
return $newData;
}
foreach ($newData as $colName => $x) {
if (!isset($meta[$colName])) {
$this->_errorLog("$method, column {$this->table}.$colName doesnt exist, value was removed before '$method'",__LINE__);
unset($newData[$colName]);
} else {
// if the current column exists, check the length too, not to write content that is too long
// prevent DB-errors here
// do only check the data length if this field is given
// FIXXME use PEAR-defined field for 'DATA_LENGTH'
if (isset($meta[$colName]['DATA_LENGTH']) &&
($oldLength=strlen($newData[$colName])) > $meta[$colName]['DATA_LENGTH'])
{
$this->_errorLog("_checkColumns, had to trim column '$colName' from $oldLength to ".
$meta[$colName]['DATA_LENGTH'].' characters.',__LINE__);
$newData[$colName] = substr($newData[$colName],0,$meta[$colName]['DATA_LENGTH']);
}
}
}
return $newData;
}
/**
* overwrite this method and i.e. print the query $string
* to see the final query
*
* @param string the query mostly
* @access public
*/
function debug($string) {}
//
//
// ONLY ORACLE SPECIFIC, not very nice since it is DB dependent, but we need it!!!
//
//
/**
* !!!! query COPIED FROM db_oci8.inc - from PHPLIB !!!!
*
* @see db_oci8.inc - PHPLIB
* @param string $table
* @return resultSet or false on error
* @access public
*/
function metadata($table='')
{
// is there an alias in the table name, then we have something like this: 'user ua'
// cut of the alias and return the table name
if (strpos($table, ' ') !== false) {
$split = explode(' ', trim($table));
$table = $split[0];
}
$full = false;
if (empty($table)) {
$table = $this->table;
}
// to prevent multiple selects for the same metadata
if (isset($this->_metadata[$table])) {
return $this->_metadata[$table];
}
// FIXXXME use oci8 implementation of newer PEAR::DB-version
if ($this->db->phptype=='oci8') {
$count = 0;
$id = 0;
$res = array();
//# This is a RIGHT OUTER JOIN: "(+)", if you want to see, what
//# this query results try the following:
//// $table = new Table; $this->db = new my_DB_Sql; // you have to make
//// // your own class
//// $table->show_results($this->db->query(see query vvvvvv))
////
$res = $this->db->getAll("SELECT T.column_name,T.table_name,T.data_type,".
"T.data_length,T.data_precision,T.data_scale,T.nullable,".
"T.char_col_decl_length,I.index_name".
" FROM ALL_TAB_COLUMNS T,ALL_IND_COLUMNS I".
" WHERE T.column_name=I.column_name (+)".
" AND T.table_name=I.table_name (+)".
" AND T.table_name=UPPER('$table') ORDER BY T.column_id");
if (MDB::isError($res)) {
//$this->_errorSet( $res->getMessage() );
// i think we only need to log here, since this method is never used
// directly for the user's functionality, which means if it fails it
// is most probably an appl error
$this->_errorLog($this->db->getUserInfo($res));
return false;
}
foreach ($res as $key=>$val) {
$res[$key]['name'] = $val['COLUMN_NAME'];
}
} else {
$res = $this->db->tableinfo($table);
if (MDB::isError($res)) {
$this->_errorSet($res->getUserInfo());
return false;
}
}
$ret = array();
foreach ($res as $key => $val) {
$ret[$val['name']] = $val;
}
$this->_metadata[$table] = $ret;
return $ret;
}
//
// methods for building the query
//
/**
* build the from string
*
* @return string the string added behind FROM
* @access public
*/
function _buildFrom()
{
$from = $this->table;
if ($join = $this->getJoin()) { // is join set?
// handle the standard join thingy
if (@$join['default']) {
$from .= ','.implode(',', $join['default']['table']);
}
// if we also have a left join, add the 'LEFT JOIN table ON condition'
$joinType = !empty($join['left']) ? 'left' : (!empty($join['right']) ? 'right' : false);
// this class can only handle one kind of join at a time ... how stupid :-)
if ($joinType) {
// do we have any of the above checked join-types?
$joinExpr = ' '.strtoupper($joinType).' JOIN ';
$tables = $join[$joinType]['table'];
settype($tables,'array');
$wheres = $join[$joinType]['where'];
settype($wheres, 'array');
foreach ($wheres as $k => $where) {
$from .= $joinExpr . $tables[$k];
// replace the _TABLENAME_COLUMNNAME by TABLENAME.COLUMNNAME
// since oracle doesnt work with the _TABLENAME_COLUMNNAME which i think is strange
// FIXXME i think this should become deprecated since the setWhere should not be used like this: '_table_column' but 'table.column'
$regExp = '/_('.implode('|', $join[$joinType]['table']).')_([^\s]+)/';
$where = preg_replace($regExp, '$1.$2', $where);
// add the table name before any column that has no table prefix
// since this might cause "unambigious column" errors
if ($meta = $this->metadata())
foreach ($meta as $aCol => $x) {
// this covers the LIKE,IN stuff: 'name LIKE "%you%"' 'id IN (2,3,4,5)'
$where = preg_replace('/\s'.$aCol.'\s/', " {$this->table}.$aCol ", $where);
// replace also the column names which are behind a '='
// and do this also if the aCol is at the end of the where clause
// that's what the $ is for
$where = preg_replace('/=\s*'.$aCol.'(\s|$)/', "={$this->table}.$aCol ", $where );
// replace if colName is first and possibly also if at the beginning of the where-string
$where = preg_replace('/(^\s*|\s+)'.$aCol.'\s*=/', "$1{$this->table}.$aCol=", $where );
}
$from .= ' ON '.$where;
}
}
}
return $from;
}
/**
* this method gets the short name for a table
*
* get the short name for a table, this is needed to properly build the
* 'AS' parts in the select query
* @param string the real table name
* @return string the table's short name
* @access public
*/
function getTableShortName($table)
{
$tableSpec = $this->getTableSpec(false);
if (isset($tableSpec[$table]['shortName']) && $tableSpec[$table]['shortName']) {
//print "$table ... ".$tableSpec[$table]['shortName'].'<br />';
return $tableSpec[$table]['shortName'];
}
$possibleTableShortName = preg_replace($this->_tableNameToShortNamePreg, '', $table);
//print "$table ... $possibleTableShortName<br />";
return $possibleTableShortName;
}
/**
* gets the tableSpec either indexed by the short name or the name
* returns the array for the tables given as parameter or if no
* parameter given for all tables that exist in the tableSpec
*
* @param array table names (not the short names!)
* @param boolean if true the table is returned indexed by the shortName
* otherwise indexed by the name
* @return array the tableSpec indexed
* @access public
*/
function getTableSpec($shortNameIndexed=true, $tables=array())
{
$newSpec = array();
foreach ($this->tableSpec as $aSpec) {
if (sizeof($tables)==0 || in_array($aSpec['name'], $tables)) {
if ($shortNameIndexed) {
$newSpec[$aSpec['shortName']] = $aSpec;
} else {
$newSpec[$aSpec['name']] = $aSpec;
}
}
}
return $newSpec;
}
/**
* build the 'SELECT <what> FROM ... 'for a select
*
* @param string if given use this string
* @return string the what-clause
* @access private
*/
function _buildSelect($what=null)
{
// what has preference, that means if what is set it is used
// this is only because the methods like 'get' pass an individually built value, which
// is supposed to be used, but usually it's generically build using the 'getSelect' values
if (!$what && $this->getSelect()) {
$what = $this->getSelect();
}
//
// replace all the '*' by the real column names, and take care of the dontSelect-columns!
//
$dontSelect = $this->getDontSelect();
$dontSelect = $dontSelect ? explode(',', $dontSelect) : array(); // make sure dontSelect is an array
// here we will replace all the '*' and 'table.*' by all the columns that this table
// contains. we do this so we can easily apply the 'dontSelect' values.
// and so we can also handle queries like: 'SELECT *,count() FROM ' and 'SELECT table.*,x FROM ' too
if (strpos($what, '*') !== false) {
// subpattern 1 get all the table names, that are written like this: 'table.*' including '*'
// for '*' the tablename will be ''
preg_match_all('/([^,]*)(\.)?\*\s*(,|$)/U', $what, $res);
//print "$what ... "; print_r($res); print '<br />';
$selectAllFromTables = array_unique($res[1]); // make the table names unique, so we do it all just once for each table
$tables = array();
if (in_array('', $selectAllFromTables)) { // was there a '*' ?
// get all the tables that we need to process, depending on if joined or not
$tables = $this->getJoin() ?
array_merge($this->getJoin('tables'), array($this->table)) : // get the joined tables and this->table
array($this->table); // create an array with only this->table
} else {
$tables = $selectAllFromTables;
}
$cols = array();
foreach ($tables as $aTable) { // go thru all the tables and get all columns for each, and handle 'dontSelect'
if ($meta = $this->metadata($aTable)) {
foreach ($meta as $colName => $x) {
// handle the dontSelect's
if (in_array($colName, $dontSelect) || in_array("$aTable.$colName", $dontSelect)) {
continue;
}
// build the AS clauses
// put " around them to enable use of reserved words, i.e. SELECT table.option as option FROM...
// and 'option' actually is a reserved word, at least in mysql
// put double quotes around them, since pgsql doesnt work with single quotes
if ($aTable == $this->table) {
$cols[$aTable][] = $this->table. '.' .$colName . ' AS "'. $colName .'"';
} else {
//$cols[$aTable][] = "$aTable.$colName AS \"_".$this->getTableShortName($aTable)."_$colName\"";
$cols[$aTable][] = $aTable. '.' .$colName .' AS "_'. $this->getTableShortName($aTable) .'_'. $colName .'"';
}
}
}
}
// put the extracted select back in the $what
// that means replace 'table.*' by the i.e. 'table.id AS _table_id'
// or if it is the table of this class replace 'table.id AS id'
if (in_array('', $selectAllFromTables)) {
$allCols = array();
foreach ($cols as $aTable) {
$allCols[] = implode(',', $aTable);
}
$what = preg_replace('/(^|,)\*($|,)/', '$1'.implode(',', $allCols).'$2', $what);
// remove all the 'table.*' since we have selected all anyway (because there was a '*' in the select)
$what = preg_replace('/[^,]*(\.)?\*\s*(,|$)/U', '', $what);
} else {
foreach ($cols as $tableName => $aTable) {
if (is_array($aTable) && sizeof($aTable)) {
// replace all the 'table.*' by their select of each column
$what = preg_replace('/(^|,)\s*'.$tableName.'\.\*\s*($|,)/', '$1'.implode(',', $aTable).'$2', $what);
}
}
}
}
if ($this->getJoin()) {
// replace all 'column' by '$this->table.column' to prevent ambigious errors
$metadata = $this->metadata();
if (is_array($metadata)) {
foreach ($this->metadata() as $aCol => $x) {
// handle ',id as xid,MAX(id),id' etc.
// FIXXME do this better!!!
$what = preg_replace( "/(^|,|\()(\s*)$aCol(\)|\s|,|as|$)/i",
// $2 is actually just to keep the spaces, is not really
// necessary, but this way the test works independent of this functionality here
"$1$2{$this->table}.$aCol$3",
$what);
}
}
// replace all 'joinedTable.columnName' by '_joinedTable_columnName'
// this actually only has an effect if there was no 'table.*' for 'table'
// if that was there, then it has already been done before
foreach ($this->getJoin('tables') as $aTable) {
if ($meta = $this->metadata($aTable)) {
foreach ($meta as $aCol => $x) {
// dont put the 'AS' behind it if there is already one
if (preg_match("/$aTable.$aCol\s*as/i", $what)) {
continue;
}
// this covers a ' table.colName ' surrounded by spaces, and replaces it by ' table.colName AS _table_colName'
$what = preg_replace('/\s'.$aTable.'.'.$aCol.'\s/', " $aTable.$aCol AS _".$this->getTableShortName($aTable)."_$aCol ", $what);
// replace also the column names which are behind a ','
// and do this also if the aCol is at the end that's what the $ is for
$what = preg_replace('/,\s*'.$aTable.'.'.$aCol.'(,|\s|$)/', ",$aTable.$aCol AS _".$this->getTableShortName($aTable)."_$aCol$1", $what);
// replace if colName is first and possibly also if at the beginning of the where-string
$what = preg_replace('/(^\s*|\s+)'.$aTable.'.'.$aCol.'\s*,/', "$1$aTable.$aCol AS _".$this->getTableShortName($aTable)."_$aCol,", $what);
}
}
}
}
return $what;
}
/**
*
* @param string $where WHERE clause
* @return string $where WHERE clause after processing
* @access private
*/
function _buildWhere($where='')
{
if ($this->getWhere()) {
if ($where) {
$where = $this->getWhere().' AND '.$where;
} else {
$where = $this->getWhere();
}
}
if ($join = $this->getJoin()) // is join set?
{
// only those where conditions in the default-join have to be added here
// left-join conditions are added behind 'ON', the '_buildJoin()' does that
if (@strlen($join['default']['where']) > 0) {
// we have to add this join-where clause here
// since at least in mysql a query like: select * from tableX JOIN tableY ON ...
// doesnt work, may be that's even SQL-standard...
if (trim($where)) {
$where = $join['default']['where'].' AND '.$where;
} else {
$where = $join['default']['where'];
}
}
// replace the _TABLENAME_COLUMNNAME by TABLENAME.COLUMNNAME
// since oracle doesnt work with the _TABLENAME_COLUMNNAME which i think is strange
// FIXXME i think this should become deprecated since the setWhere should not be used like this: '_table_column' but 'table.column'
$regExp = '/_('.implode('|', $this->getJoin('tables')).')_([^\s]+)/';
$where = preg_replace( $regExp , '$1.$2' , $where );
// add the table name before any column that has no table prefix
// since this might cause "unambigious column" errors
if ($meta = $this->metadata()) {
foreach ($meta as $aCol=>$x) {
// this covers the LIKE,IN stuff: 'name LIKE "%you%"' 'id IN (2,3,4,5)'
$where = preg_replace('/\s'.$aCol.'\s/' , " {$this->table}.$aCol ", $where );
// replace also the column names which are behind a '='
// and do this also if the aCol is at the end of the where clause
// that's what the $ is for
$where = preg_replace('/([=<>])\s*'.$aCol.'(\s|$)/', "$1{$this->table}.$aCol ", $where );
// replace if colName is first and possibly also if at the beginning of the where-string
$where = preg_replace('/(^\s*|\s+)'.$aCol.'\s*([=<>])/', "$1{$this->table}.$aCol$2", $where );
}
}
}
return $where;
}
/**
*
* @return string $order
* @access private
*/
function _buildOrder()
{
$order = $this->getOrder();
// replace 'column' by '$this->table.column' if the column is defined for $this->table
if ($meta = $this->metadata()) {
foreach ($meta as $aCol=>$x) {
$order = preg_replace('/(^\s*|\s+|,)'.$aCol.'\s*(,)?/U', "$1{$this->table}.$aCol$2", $order);
}
}
return $order;
}
/**
* Build the group-clause, replace 'column' by 'table.column'.
*
* @return string the rendered group clause
* @access private
*/
function _buildGroup()
{
$group = $this->getGroup();
// replace 'column' by '$this->table.column' if the column is defined for $this->table
if ($meta = $this->metadata()) {
foreach ($meta as $aCol=>$x) {
$group = preg_replace('/(^\s*|\s+|,)'.$aCol.'\s*(,)?/U', "$1{$this->table}.$aCol$2", $group);
}
}
return $group;
}
/**
*
*
* @return string the having clause
* @access private
*/
function _buildHaving()
{
$having = $this->getHaving();
// replace 'column' by '$this->table.column' if the column is defined for $this->table
if ($meta = $this->metadata()) {
foreach ($meta as $aCol=>$x) {
$having = preg_replace('/(^\s*|\s+|,)'.$aCol.'\s*(,)?/U', "$1{$this->table}.$aCol$2", $having);
}
}
return $having;
}
/**
*
* @param array this array contains the elements of the query,
* indexed by their key, which are: 'select','from','where', etc.
* @return string $querystring or false on error
* @access private
*/
function _buildSelectQuery($query=array())
{
$where = isset($query['where']) ? $query['where'] : $this->_buildWhere();
if ($where) {
$where = 'WHERE '.$where;
}
$order = isset($query['order']) ? $query['order'] : $this->_buildOrder();
if ($order) {
$order = 'ORDER BY '.$order;
}
$group = isset($query['group']) ? $query['group'] : $this->_buildGroup();
if ($group) {
$group = 'GROUP BY '.$group;
}
$having = isset($query['having']) ? $query['having'] : $this->_buildHaving();
if ($having) {
$having = 'HAVING '.$having;
}
$queryString = sprintf( 'SELECT %s FROM %s %s %s %s %s',
isset($query['select']) ? $query['select'] : $this->_buildSelect(),
isset($query['from']) ? $query['from'] : $this->_buildFrom(),
$where,
$group,
$order,
$having
);
// $query['limit'] has preference!
$limit = isset($query['limit']) ? $query['limit'] : $this->_limit;
if (@$limit[1]) { // is there a count set?
if (MDB::isError($error = $this->db->setSelectedRowRange($limit[0], $limit[1]))) {
$this->_errorSet('MDB_QueryTool_Common::_buildSelectQuery setSelectedRowRange failed '.$error->getMessage());
$this->_errorLog($error->getUserInfo());
return false;
}
/*
$queryString = $this->db->modifyLimitQuery($queryString, $limit[0], $limit[1]);
if (DB::isError($queryString)) {
$this->_errorSet('DB_QueryTool::db::modifyLimitQuery failed '.$queryString->getMessage());
$this->_errorLog($queryString->getUserInfo());
return false;
}
*/
}
return $queryString;
}
/**
* this simply builds an update query.
*
* @param array the parameter array might contain the following indexes
* 'where' the where clause to be added, i.e.
* UPDATE table SET x=1 WHERE y=0
* here the 'where' part simply would be 'y=0'
* 'set' the actual data to be updated
* in the example above, that would be 'x=1'
* @return string the resulting query
* @access private
*/
function _buildUpdateQuery($query=array())
{
$where = isset($query['where']) ? $query['where'] : $this->_buildWhere();
if ($where) {
$where = 'WHERE '.$where;
}
$updateString = sprintf('UPDATE %s SET %s %s',
$this->table,
$query['set'],
$where
);
return $updateString;
}
/**
*
* @param string $query
* @param string method
* @return resultSet or false on error
* @access public
*/
function execute($query=null, $method='getAll')
{
$this->writeLog();
if (is_null($query)) {
$query = $this->_buildSelectQuery();
}
$this->writeLog('query built: '.$query);
// FIXXME on ORACLE this doesnt work, since we return joined columns as _TABLE_COLNAME and the _ in front
// doesnt work on oracle, add a letter before it!!!
$this->_lastQuery = $query;
$this->debug($query);
$this->writeLog('start query');
if (MDB::isError($res = $this->db->$method($query))) {
if ($this->getOption('verbose')) {
//$this->_errorSet($this->db->errorMessage($res->getCode()));
$this->_errorSet($res->getMessage() .'-'. $res->getUserInfo());
} else {
//$this->_errorLog($this->db->errorMessage($res->getCode()));
$this->_errorLog($res->getMessage());
}
$this->_errorLog($res->getUserInfo(), __LINE__);
return false;
} else {
$this->writeLog('end query');
}
return $this->_makeIndexed($res);
}
/**
* Write events to the logfile.
*
* It does some additional work, like time measuring etc. to
* see some additional info
*
* @param string $text
* @access public
*/
function writeLog($text='START')
{
//its still really a quicky.... 'refactor' (nice word) that
if (!isset($this->options['logfile'])) {
return;
}
include_once 'Log.php';
if (!class_exists('Log')) {
return;
}
if (!$this->_logObject) {
$this->_logObject =& Log::factory('file', $this->options['logfile']);
}
if ($text == 'start query' || $text === 'end query') {
$bytesSent = $this->db->getAll("SHOW STATUS like 'Bytes_sent'");
$bytesSent = $bytesSent[0]['Value'];
}
if ($text === 'START') {
$startTime = split(" ", microtime());
$this->_logData['startTime'] = $startTime[1] + $startTime[0];
}
if ($text === 'start query') {
$this->_logData['startBytesSent'] = $bytesSent;
$startTime = split(" ", microtime());
$this->_logData['startQueryTime'] = $startTime[1] + $startTime[0];
return;
}
if ($text === 'end query') {
$text .= ' result size: '.((int)$bytesSent-(int)$this->_logData['startBytesSent']).' bytes';
$endTime = split(" ", microtime());
$endTime = $endTime[1] + $endTime[0];
$text .= ', took: '.(($endTime - $this->_logData['startQueryTime'])).' seconds';
}
if (strpos($text, 'query built') === 0) {
$endTime = split(" ", microtime());
$endTime = $endTime[1] + $endTime[0];
$this->writeLog('query building took: '.(($endTime - $this->_logData['startTime'])).' seconds');
}
$this->_logObject->log($text);
if (strpos($text, 'end query') === 0) {
$endTime = split(' ', microtime());
$endTime = $endTime[1] + $endTime[0];
$text = 'time over all: '.(($endTime - $this->_logData['startTime'])).' seconds';
$this->_logObject->log($text);
}
}
/**
*
*
* @param resultSet reference
* @return MDB_QueryTool_Result if "useResult"==TRUE, the $result otherwise
* @access public
*/
function returnResult(&$result)
{
if ($this->_useResult) {
if ($result === false) {
return false;
}
return new MDB_QueryTool_Result($result);
}
return $result;
}
/**
*
* @param mixed $data
* @return mixed $data or array $indexedData
* @access public
*/
function &_makeIndexed(&$data)
{
// we can only return an indexed result if the result has a number of columns
if (is_array($data) && sizeof($data) && $key=$this->getIndex()) {
// build the string to evaluate which might be made up out of multiple indexes of a result-row
$evalString = '$val[\''.implode('\'].\',\'.$val[\'',explode(',',$key)).'\']'; //"
$indexedData = array();
//FIXXME actually we also need to check ONCE if $val is an array, so to say if $data is 2-dimensional
foreach ($data as $val) {
eval("\$keyValue = $evalString;"); // get the actual real (string-)key (string if multiple cols are used as index)
$indexedData[$keyValue] = $val;
}
unset($data);
return $indexedData;
}
return $data;
}
/**
* format the result to be indexed by $key
* NOTE: be careful, when using this you should be aware, that if you
* use an index which's value appears multiple times you may loose data
* since a key cant exist multiple times!!
* the result for a result to be indexed by a key(=columnName)
* (i.e. 'relationtoMe') which's values are 'brother' and 'sister'
* or alike normally returns this:
* $res['brother'] = array('name'=>'xxx')
* $res['sister'] = array('name'=>'xxx')
* but if the column 'relationtoMe' contains multiple entries for 'brother'
* then the returned dataset will only contain one brother, since the
* value from the column 'relationtoMe' is used
* and which 'brother' you get depends on a lot of things, like the sortorder,
* how the db saves the data, and whatever else
*
* you can also set indexes which depend on 2 columns, simply pass the parameters like
* 'table1.id,table2.id' it will be used as a string for indexing the result
* and the index will be built using the 2 values given, so a possible
* index might be '1,2' or '2108,29389' this way you can access data which
* have 2 primary keys. Be sure to remember that the index is a string!
*
* @param string $key
* @access public
*/
function setIndex($key=null)
{
if ($this->getJoin()) { // is join set?
// replace TABLENAME.COLUMNNAME by _TABLENAME_COLUMNNAME
// since this is only the result-keys can be used for indexing :-)
$regExp = '/('.implode('|',$this->getJoin('tables')).')\.([^\s]+)/';
$key = preg_replace($regExp, '_$1_$2', $key);
// remove the table name if it is in front of '<$this->table>.columnname'
// since the key doesnt contain it neither
if ($meta = $this->metadata()) {
foreach ($meta as $aCol => $x) {
$key = preg_replace('/'.$this->table.'\.'.$aCol.'/', $aCol, $key);
}
}
}
$this->_index = $key;
}
/**
*
* @return string index
* @access public
*/
function getIndex()
{
return $this->_index;
}
/**
*
* @param boolean
* @access public
*/
function useResult($doit=true)
{
$this->_useResult = $doit;
if ($doit) {
require_once 'MDB/QueryTool/Result.php';
}
}
/**
* set both callbacks
* @access public
*/
function setErrorCallback($param='')
{
$this->setErrorLogCallback($param);
$this->setErrorSetCallback($param);
}
function setErrorLogCallback($param='')
{
$errorLogCallback = &PEAR::getStaticProperty('MDB_QueryTool', '_errorLogCallback');
$errorLogCallback = $param;
}
function setErrorSetCallback($param='')
{
$errorSetCallback = &PEAR::getStaticProperty('MDB_QueryTool', '_errorSetCallback');
$errorSetCallback = $param;
}
/**
* sets error log and adds additional info
*
* @param string the actual message, first word should always be the method name,
* to build the message like this: className::methodname
* @param integer the line number
* @access private
*/
function _errorLog($msg, $line='unknown')
{
$this->_errorHandler('log', $msg, $line);
/*
if ($this->getOption('verbose') == true) {
$this->_errorLog( get_class($this)."::$msg ($line)");
return;
}
if ($this->_errorLogCallback) {
call_user_func( $this->_errorLogCallback , $msg );
}
*/
}
function _errorSet($msg, $line='unknown')
{
$this->_errorHandler('set', $msg, $line);
}
function _errorHandler($logOrSet, $msg, $line='unknown')
{
/* what did i do this for?
if ($this->getOption('verbose') == true) {
$this->_errorHandler($logOrSet, get_class($this)."::$msg ($line)");
return;
}
*/
$msg = get_class($this)."::$msg ($line)";
$logOrSet = ucfirst($logOrSet);
$callback = &PEAR::getStaticProperty('MDB_QueryTool', '_error' . $logOrSet . 'Callback');
if ($callback) {
call_user_func($callback, $msg);
} //else {
// ?????
//}
}
} // end of class
?>