public function print_grades()
{
global $CFG;
$export_tracking = $this->track_exports();
$strgrades = get_string('grades');
$profilefields = grade_helper::get_user_profile_fields($this->course->id, $this->usercustomfields);
$shortname = format_string($this->course->shortname, true, array('context' => context_course::instance($this->course->id)));
$downloadfilename = clean_filename("{$shortname} {$strgrades}");
$csvexport = new csv_export_writer($this->separator);
$csvexport->set_filename($downloadfilename);
// Print names of all the fields
$exporttitle = array();
foreach ($profilefields as $field) {
$exporttitle[] = $field->fullname;
}
if (!$this->onlyactive) {
$exporttitle[] = get_string("suspended");
}
// Add a feedback column.
foreach ($this->columns as $grade_item) {
$exporttitle[] = $this->format_column_name($grade_item);
if ($this->export_feedback) {
$exporttitle[] = $this->format_column_name($grade_item, true);
}
}
$csvexport->add_data($exporttitle);
// Print all the lines of data.
$geub = new grade_export_update_buffer();
$gui = new graded_users_iterator($this->course, $this->columns, $this->groupid);
$gui->require_active_enrolment($this->onlyactive);
$gui->allow_user_custom_fields($this->usercustomfields);
$gui->init();
while ($userdata = $gui->next_user()) {
$exportdata = array();
$user = $userdata->user;
foreach ($profilefields as $field) {
$fieldvalue = grade_helper::get_user_field_value($user, $field);
$exportdata[] = $fieldvalue;
}
if (!$this->onlyactive) {
$issuspended = $user->suspendedenrolment ? get_string('yes') : '';
$exportdata[] = $issuspended;
}
foreach ($userdata->grades as $itemid => $grade) {
if ($export_tracking) {
$status = $geub->track($grade);
}
$exportdata[] = $this->format_grade($grade);
if ($this->export_feedback) {
$exportdata[] = $this->format_feedback($userdata->feedbacks[$itemid]);
}
}
$csvexport->add_data($exportdata);
}
$gui->close();
$geub->close();
$csvexport->download_file();
exit;
}
/**
* To be implemented by child classes
*/
public function print_grades()
{
global $CFG;
require_once $CFG->dirroot . '/lib/excellib.class.php';
$export_tracking = $this->track_exports();
$strgrades = get_string('grades');
// Calculate file name
$shortname = format_string($this->course->shortname, true, array('context' => context_course::instance($this->course->id)));
$downloadfilename = clean_filename("{$shortname} {$strgrades}.xls");
// Creating a workbook
$workbook = new MoodleExcelWorkbook("-");
// Sending HTTP headers
$workbook->send($downloadfilename);
// Adding the worksheet
$myxls = $workbook->add_worksheet($strgrades);
// Print names of all the fields
$profilefields = grade_helper::get_user_profile_fields($this->course->id, $this->usercustomfields);
foreach ($profilefields as $id => $field) {
$myxls->write_string(0, $id, $field->fullname);
}
$pos = count($profilefields);
if (!$this->onlyactive) {
$myxls->write_string(0, $pos++, get_string("suspended"));
}
foreach ($this->columns as $grade_item) {
$myxls->write_string(0, $pos++, $this->format_column_name($grade_item));
// Add a column_feedback column
if ($this->export_feedback) {
$myxls->write_string(0, $pos++, $this->format_column_name($grade_item, true));
}
}
// Print all the lines of data.
$i = 0;
$geub = new grade_export_update_buffer();
$gui = new graded_users_iterator($this->course, $this->columns, $this->groupid);
$gui->require_active_enrolment($this->onlyactive);
$gui->allow_user_custom_fields($this->usercustomfields);
$gui->init();
while ($userdata = $gui->next_user()) {
$i++;
$user = $userdata->user;
foreach ($profilefields as $id => $field) {
$fieldvalue = grade_helper::get_user_field_value($user, $field);
$myxls->write_string($i, $id, $fieldvalue);
}
$j = count($profilefields);
if (!$this->onlyactive) {
$issuspended = $user->suspendedenrolment ? get_string('yes') : '';
$myxls->write_string($i, $j++, $issuspended);
}
foreach ($userdata->grades as $itemid => $grade) {
if ($export_tracking) {
$status = $geub->track($grade);
}
$gradestr = $this->format_grade($grade);
if (is_numeric($gradestr)) {
$myxls->write_number($i, $j++, $gradestr);
} else {
$myxls->write_string($i, $j++, $gradestr);
}
// writing feedback if requested
if ($this->export_feedback) {
$myxls->write_string($i, $j++, $this->format_feedback($userdata->feedbacks[$itemid]));
}
}
}
$gui->close();
$geub->close();
/// Close the workbook
$workbook->close();
exit;
}
/**
* Prints preview of exported grades on screen as a feedback mechanism
* @param bool $require_user_idnumber true means skip users without idnumber
* @deprecated since 2.8 MDL-46548. Previews are not useful on export.
*/
public function display_preview($require_user_idnumber = false)
{
global $OUTPUT;
debugging('function grade_export::display_preview is deprecated.', DEBUG_DEVELOPER);
$userprofilefields = grade_helper::get_user_profile_fields($this->course->id, $this->usercustomfields);
$formatoptions = new stdClass();
$formatoptions->para = false;
echo $OUTPUT->heading(get_string('previewrows', 'grades'));
echo '<table>';
echo '<tr>';
foreach ($userprofilefields as $field) {
echo '<th>' . $field->fullname . '</th>';
}
if (!$this->onlyactive) {
echo '<th>' . get_string("suspended") . "</th>";
}
foreach ($this->columns as $grade_item) {
echo '<th>' . $this->format_column_name($grade_item) . '</th>';
/// add a column_feedback column
if ($this->export_feedback) {
echo '<th>' . $this->format_column_name($grade_item, true) . '</th>';
}
}
echo '</tr>';
/// Print all the lines of data.
$i = 0;
$gui = new graded_users_iterator($this->course, $this->columns, $this->groupid);
$gui->require_active_enrolment($this->onlyactive);
$gui->allow_user_custom_fields($this->usercustomfields);
$gui->init();
while ($userdata = $gui->next_user()) {
// number of preview rows
if ($this->previewrows and $this->previewrows <= $i) {
break;
}
$user = $userdata->user;
if ($require_user_idnumber and empty($user->idnumber)) {
// some exports require user idnumber so we can match up students when importing the data
continue;
}
$gradeupdated = false;
// if no grade is update at all for this user, do not display this row
$rowstr = '';
foreach ($this->columns as $itemid => $unused) {
$gradetxt = $this->format_grade($userdata->grades[$itemid]);
// get the status of this grade, and put it through track to get the status
$g = new grade_export_update_buffer();
$grade_grade = new grade_grade(array('itemid' => $itemid, 'userid' => $user->id));
$status = $g->track($grade_grade);
if ($this->updatedgradesonly && ($status == 'nochange' || $status == 'unknown')) {
$rowstr .= '<td>' . get_string('unchangedgrade', 'grades') . '</td>';
} else {
$rowstr .= "<td>{$gradetxt}</td>";
$gradeupdated = true;
}
if ($this->export_feedback) {
$rowstr .= '<td>' . $this->format_feedback($userdata->feedbacks[$itemid]) . '</td>';
}
}
// if we are requesting updated grades only, we are not interested in this user at all
if (!$gradeupdated && $this->updatedgradesonly) {
continue;
}
echo '<tr>';
foreach ($userprofilefields as $field) {
$fieldvalue = grade_helper::get_user_field_value($user, $field);
// @see profile_field_base::display_data().
echo '<td>' . format_text($fieldvalue, FORMAT_MOODLE, $formatoptions) . '</td>';
}
if (!$this->onlyactive) {
$issuspended = $user->suspendedenrolment ? get_string('yes') : '';
echo "<td>{$issuspended}</td>";
}
echo $rowstr;
echo "</tr>";
$i++;
// increment the counter
}
echo '</table>';
$gui->close();
}
