public function Excel::flush in Forena Reports 8

Write the output to disk.

Return value

mixed

Overrides DocumentBase::flush

File

src/FrxPlugin/Document/Excel.php, line 25

Class

Excel

Provides MS Excel Exports

Namespace

Drupal\forena\FrxPlugin\Document

Code

public function flush() {
  $body = $this->write_buffer;
  $output = '<?xml version="1.0"?>' . "\n";
  $output .= '<?mso-application progid="Excel.Sheet"?>' . "\n";
  $output .= '<Workbook xmlns="urn:schemas-microsoft-com:office:spreadsheet"' . "\n";
  $output .= '  xmlns:o="urn:schemas-microsoft-com:office:office"' . "\n";
  $output .= '  xmlns:x="urn:schemas-microsoft-com:office:excel"' . "\n";
  $output .= '  xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet"' . "\n";
  $output .= '  xmlns:html="http://www.w3.org/TR/REC-html40">' . "\n";
  $output .= '<Styles>' . "\n";
  $output .= '  <Style ss:ID="Default" ss:Name="Normal">' . "\n";
  $output .= '    <Alignment ss:Vertical="Bottom"/>' . "\n";
  $output .= '    <Borders/>' . "\n";
  $output .= '    <Font/>' . "\n";
  $output .= '    <Interior/>' . "\n";
  $output .= '    <NumberFormat/>' . "\n";
  $output .= '    <Protection/>' . "\n";
  $output .= '  </Style>' . "\n";
  $output .= '</Styles>' . "\n";
  $doc = new \DOMDocument();
  $doc->strictErrorChecking = FALSE;
  libxml_use_internal_errors(true);
  @$doc
    ->loadHTML($body);
  libxml_clear_errors();
  $xml = simplexml_import_dom($doc);
  $tables = $xml ? $xml
    ->xpath('//table') : array();
  $count = 1;
  if ($tables) {
    foreach ($tables as $table) {
      $sheet_name = @(string) $table['data-caption'];
      if (!$sheet_name && @(string) $table->caption) {
        $sheet_name = (string) $table->caption;
      }
      if (!$sheet_name) {
        $sheet_name = 'sheet' . ' ' . $count;
      }
      $output .= '<Worksheet ss:Name="' . $sheet_name . '">' . "\n";
      $count++;
      $output .= '  <Table>' . "\n";
      $rows = $table
        ->xpath('descendant::tr');
      if ($rows) {
        foreach ($rows as $row) {
          $output .= '    <Row>' . "\n";
          foreach ($row as $column) {
            $class = @(string) $column['class'];
            $classes = explode(' ', $class);
            $text_class = array_search('XLSText', $classes) !== FALSE;
            $value = $column
              ->asXML();
            $value = strip_tags($value);
            $tval = trim($value);

            // Find if it contains invalid number characters
            $non_numeric_chars = trim($value, ' +-.,0123456789');

            // Determine if it contains +- in the interior
            // Zero is ok here bu
            $inner_symbols = FALSE;
            if (strpos($tval, '+') || strpos($tval, '-') || strpos($tval, ' ')) {
              $inner_symbols = TRUE;
            }
            if (substr_count($tval, '.') > 1) {
              $inner_symbols = TRUE;
            }
            if (empty($non_numeric_chars) && trim($value) !== '' && !$inner_symbols && !$text_class) {
              $output .= '      <Cell><Data ss:Type="Number">' . $tval . '</Data></Cell>' . "\n";
            }
            else {
              $output .= '      <Cell><Data ss:Type="String">' . $value . '</Data></Cell>' . "\n";
            }
          }
          $output .= '    </Row>' . "\n";
        }
      }
      $output .= '  </Table>' . "\n";
      $output .= '  <WorksheetOptions xmlns="urn:schemas-microsoft-com:office:excel">' . "\n";
      $output .= '    <Selected/>' . "\n";
      $output .= '    <ProtectObjects>False</ProtectObjects>' . "\n";
      $output .= '    <ProtectScenarios>False</ProtectScenarios>' . "\n";
      $output .= '  </WorksheetOptions>' . "\n";
      $output .= '</Worksheet>' . "\n";
      $output .= '</Workbook>';
      $output = $this
        ->convertCharset($output);
      return $output;
    }
  }
  return $output;
}