/**
* saveFile
*/
public function saveFile($file_single, $survey_entry_id, $question_id, $answer_id)
{
// find survey_id by $survey_entry_id
require_once 'models/education/education_survey_entry.php';
$Survey_Entry = new education_survey_entry();
$survey_entry_data = $Survey_Entry->detail($survey_entry_id);
$survey_id = $survey_entry_data['survey_id'];
/**
* add prefix to filename (rename)
*/
$file_single['name'] = $this->getFilenameToSave($file_single['name'], $survey_entry_id, $question_id, $answer_id);
/**
* file
*/
require_once 'models/common/common_file.php';
//getSingleUpload could be a static method
$CommonFile = new common_file();
$upload = $CommonFile->getSingleUpload($file_single, "var/surveys/{$survey_id}/");
/**
* array indicated the same file name already exists in the var/tmp/ folder
* this should never happen as we have entry id in filename
*/
if (is_array($upload)) {
$attachment_saved_file = ONXSHOP_PROJECT_DIR . $upload['temp_file'];
} else {
$attachment_saved_file = ONXSHOP_PROJECT_DIR . $upload;
}
/**
* check if file exists and than return filename
*/
if (file_exists($attachment_saved_file)) {
$attachment_info = $CommonFile->getFileInfo($attachment_saved_file);
return $attachment_info['filename'];
}
}
/**
* getAnswerUsage
*/
public function getAnswerUsage($question_answer_id, $relation_subject = false)
{
if (!is_numeric($question_answer_id)) {
return false;
}
require_once 'models/education/education_survey_entry.php';
$SurveyEntry = new education_survey_entry();
$usage_count = $SurveyEntry->getAnswerUsageCount($question_answer_id, $relation_subject);
return $usage_count;
}
/**
* calculateSurveyAverageRating
*/
public function calculateSurveyAverageRating($survey_detail, $relation_subject = fals)
{
if (!is_array($survey_detail)) {
return false;
}
if (!is_array($survey_detail['question_list'])) {
return false;
}
$survey_total_x = 0;
$survey_total_sum = 0;
foreach ($survey_detail['question_list'] as $k => $item) {
$question_total_x = 0;
$question_total_sum = 0;
if (($item['type'] == 'radio' || $item['type'] == 'select') && is_array($item['answer_list'])) {
foreach ($item['answer_list'] as $answer_k => $answer_item) {
$question_total_x = $question_total_x + $answer_item['usage_count'] * $answer_item['points'];
$question_total_sum = $question_total_sum + $answer_item['usage_count'];
}
if ($question_total_sum > 0) {
$survey_detail['question_list'][$k]['average_rating'] = $question_total_x / $question_total_sum;
} else {
$survey_detail['question_list'][$k]['average_rating'] = 'n/a';
}
} else {
$survey_detail['question_list'][$k]['average_rating'] = 'n/a';
}
$survey_total_x = $survey_total_x + $question_total_x;
$survey_total_sum = $survey_total_sum + $question_total_sum;
}
if ($survey_total_sum > 0) {
$survey_detail['average_rating'] = $survey_total_x / $survey_total_sum;
} else {
$survey_detail['average_rating'] = 'n/a';
}
/**
* weighted mean rating
* calculating manually at this place, but we could use education_survey_entry->getWeightedMean()
*/
/* Option 1: manual
$weighted_mean_top = 0;
$weighted_mean_bottom = 0;
foreach ($survey_detail['question_list'] as $k=>$item) {
if (is_numeric($item['average_rating'])) {
$weighted_mean_top = $weighted_mean_top + $item['weight'] * $item['average_rating'];
$weighted_mean_bottom = $weighted_mean_bottom + $item['weight'];
}
}
if ($weighted_mean_bottom > 0) {
$survey_detail['weighted_mean'] = $weighted_mean_top / $weighted_mean_bottom;
} else {
$survey_detail['weighted_mean'] = 'n/a';
}*/
// Option 2: weighted mean calculated from education_survey_entry->getWeightedMean()
require_once 'models/education/education_survey_entry.php';
$SurveyEntry = new education_survey_entry();
$weighted_mean = $SurveyEntry->getWeightedMean($survey_detail['id'], $relation_subject);
if (is_numeric($weighted_mean)) {
$survey_detail['weighted_mean'] = $weighted_mean;
} else {
$survey_detail['weighted_mean'] = 'n/a';
}
return $survey_detail;
}