/**
* Provide export functionality for xml format
* As answers field in question_jme contains answers ids we can't use typebase method.
* @param question object the question object
* @param format object the format object so that helper methods can be used
* @param extra mixed any additional format specific data that may be passed by the format (see format code for info)
* @return string the data to append to the output buffer or false if error
*/
public function export_to_xml($question, qformat_xml $format, $extra = null)
{
$extraquestionfields = $this->extra_question_fields();
array_shift($extraquestionfields);
$expout = '';
foreach ($extraquestionfields as $field) {
$exportedvalue = $format->xml_escape($question->options->{$field});
$expout .= " <{$field}>{$exportedvalue}</{$field}>\n";
}
// Write out all the answers.
$expout .= $format->write_answers($question->options->answers);
return $expout;
}
public function export_to_xml($question, qformat_xml $format, $extra=null) {
$extraquestionfields = $this->extra_question_fields();
if (!is_array($extraquestionfields)) {
return false;
}
// Omit table name.
array_shift($extraquestionfields);
$expout='';
foreach ($extraquestionfields as $field) {
$exportedvalue = $format->xml_escape($question->options->$field);
$expout .= " <$field>{$exportedvalue}</$field>\n";
}
$extraanswersfields = $this->extra_answer_fields();
if (is_array($extraanswersfields)) {
array_shift($extraanswersfields);
}
foreach ($question->options->answers as $answer) {
$extra = '';
if (is_array($extraanswersfields)) {
foreach ($extraanswersfields as $field) {
$exportedvalue = $format->xml_escape($answer->$field);
$extra .= " <{$field}>{$exportedvalue}</{$field}>\n";
}
}
$expout .= $format->write_answer($answer, $extra);
}
return $expout;
}
public function test_xml_escape_code_that_looks_like_cdata_end_ok()
{
$exporter = new qformat_xml();
$input = "if (x[[0]]>a) print('hah');";
$expected = "<![CDATA[if (x[[0]]]]><![CDATA[>a) print('hah');]]>";
$this->assertEquals($expected, $exporter->xml_escape($input));
// Check that parsing the expected result does give the input again.
$parsed = simplexml_load_string('<div>' . $expected . '</div>');
$this->assertEquals($input, $parsed->xpath('//div')[0]);
}
public function xexport_to_xml($question, qformat_xml $format, $extra = null)
{
$extraquestionfields = $this->extra_question_fields();
if (!is_array($extraquestionfields)) {
return false;
}
//get file storage
$fs = get_file_storage();
//omit table name
array_shift($extraquestionfields);
$expout = '';
foreach ($extraquestionfields as $field) {
if ($field == 'backimage') {
$exportedvalue = $format->write_files($fs->get_area_files($question->contextid, 'qtype_poodllrecording', 'backimage', $question->id));
} else {
$exportedvalue = $format->xml_escape($question->options->{$field});
}
$expout .= " <{$field}>{$exportedvalue}</{$field}>\n";
}
return $expout;
}
