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<?php
/*
@author dhtmlx.com
@license GPL, see license.txt
*/
require_once('db_common.php');
if (!defined('DHX_IGNORE_EMPTY_ROWS')) {
define('DHX_IGNORE_EMPTY_ROWS', true);
}
class ExcelDBDataWrapper extends DBDataWrapper {
public $emptyLimit = 10;
public function excel_data($points){
$path = $this->connection;
$excel = PHPExcel_IOFactory::createReaderForFile($path);
$excel = $excel->load($path);
$result = array();
$excelWS = $excel->getActiveSheet();
for ($i=0; $i < sizeof($points); $i++) {
$c = array();
preg_match("/^([a-zA-Z]+)(\d+)/", $points[$i], $c);
if (count($c) > 0) {
$col = PHPExcel_Cell::columnIndexFromString($c[1]) - 1;
$cell = $excelWS->getCellByColumnAndRow($col, (int)$c[2]);
$result[] = $cell->getValue();
}
}
return $result;
}
public function select($source) {
$path = $this->connection;
$excel = PHPExcel_IOFactory::createReaderForFile($path);
$excel = $excel->load($path);
$excRes = new ExcelResult();
$excelWS = $excel->getActiveSheet();
$addFields = true;
$coords = array();
if ($source->get_source() == '*') {
$coords['start_row'] = 0;
$coords['end_row'] = false;
} else {
$c = array();
preg_match("/^([a-zA-Z]+)(\d+)/", $source->get_source(), $c);
if (count($c) > 0) {
$coords['start_row'] = (int) $c[2];
} else {
$coords['start_row'] = 0;
}
$c = array();
preg_match("/:(.+)(\d+)$/U", $source->get_source(), $c);
if (count($c) > 0) {
$coords['end_row'] = (int) $c[2];
} else {
$coords['end_row'] = false;
}
}
$i = $coords['start_row'];
$end = 0;
while ((($coords['end_row'] == false)&&($end < $this->emptyLimit))||(($coords['end_row'] !== false)&&($i < $coords['end_row']))) {
$r = Array();
$emptyNum = 0;
for ($j = 0; $j < count($this->config->text); $j++) {
$col = PHPExcel_Cell::columnIndexFromString($this->config->text[$j]['name']) - 1;
$cell = $excelWS->getCellByColumnAndRow($col, $i);
if ($cell->getDataType() == 'f') {
$r[PHPExcel_Cell::stringFromColumnIndex($col)] = $cell->getCalculatedValue();
} else {
$r[PHPExcel_Cell::stringFromColumnIndex($col)] = $cell->getValue();
}
if ($r[PHPExcel_Cell::stringFromColumnIndex($col)] == '') {
$emptyNum++;
}
}
if ($emptyNum < count($this->config->text)) {
$r['id'] = $i;
$excRes->addRecord($r);
$end = 0;
} else {
if (DHX_IGNORE_EMPTY_ROWS == false) {
$r['id'] = $i;
$excRes->addRecord($r);
}
$end++;
}
$i++;
}
return $excRes;
}
protected function query($sql) {
}
protected function get_new_id() {
}
public function escape($data) {
}
public function get_next($res) {
return $res->next();
}
}
class ExcelResult {
private $rows;
private $currentRecord = 0;
// add record to output list
public function addRecord($file) {
$this->rows[] = $file;
}
// return next record
public function next() {
if ($this->currentRecord < count($this->rows)) {
$row = $this->rows[$this->currentRecord];
$this->currentRecord++;
return $row;
} else {
return false;
}
}
// sorts records under $sort array
public function sort($sort, $data) {
if (count($this->files) == 0) {
return $this;
}
// defines fields list if it's need
for ($i = 0; $i < count($sort); $i++) {
$fieldname = $sort[$i]['name'];
if (!isset($this->files[0][$fieldname])) {
if (isset($data[$fieldname])) {
$fieldname = $data[$fieldname]['db_name'];
$sort[$i]['name'] = $fieldname;
} else {
$fieldname = false;
}
}
}
// for every sorting field will sort
for ($i = 0; $i < count($sort); $i++) {
// if field, setted in sort parameter doesn't exist, continue
if ($sort[$i]['name'] == false) {
continue;
}
// sorting by current field
$flag = true;
while ($flag == true) {
$flag = false;
// checks if previous sorting fields are equal
for ($j = 0; $j < count($this->files) - 1; $j++) {
$equal = true;
for ($k = 0; $k < $i; $k++) {
if ($this->files[$j][$sort[$k]['name']] != $this->files[$j + 1][$sort[$k]['name']]) {
$equal = false;
}
}
// compares two records in list under current sorting field and sorting direction
if (((($this->files[$j][$sort[$i]['name']] > $this->files[$j + 1][$sort[$i]['name']])&&($sort[$i]['direction'] == 'ASC'))||(($this->files[$j][$sort[$i]['name']] < $this->files[$j + 1][$sort[$i]['name']])&&($sort[$i]['direction'] == 'DESC')))&&($equal == true)) {
$c = $this->files[$j];
$this->files[$j] = $this->files[$j+1];
$this->files[$j+1] = $c;
$flag = true;
}
}
}
}
return $this;
}
}
?>
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