/**
* Process modification of own entry
*
* @return array errors
*/
protected function process_entry_modification()
{
if (!check_form_key($this->form_key_name)) {
return array($this->user->lang('FORM_INVALID'));
}
if (!$this->request->is_set_post('entries_to_modify')) {
return array();
}
$entry_ids = array_unique(explode(",", $this->request->variable('entries_to_modify', '')));
$entry_user_id = $real_user_id = $this->user->data['user_id'];
$errors = array();
foreach ($entry_ids as $entry_id) {
$changed = $filled_out = false;
if ($entry_id == self::ADDUSER_ENTRY_ID) {
$username = utf8_normalize_nfc($this->request->variable('answer_adduser_username', '', true));
if ($username == '') {
continue;
}
$adduser_id = array();
if (user_get_id_name($adduser_id, $username) == 'NO_USERS') {
$errors[] = $this->user->lang('NO_USER');
continue;
}
$entry_user_id = $adduser_id[0];
if (!$this->survey->can_add_new_entry($real_user_id, $entry_user_id)) {
$errors[] = $this->user->lang('NO_AUTH_OPERATION');
continue;
}
} else {
$entry_id = (int) $entry_id;
if ($entry_id == self::NEW_ENTRY_ID && !$this->survey->can_add_new_entry($real_user_id)) {
$errors[] = $this->user->lang('NO_AUTH_OPERATION');
continue;
} else {
if ($entry_id != self::NEW_ENTRY_ID && !$this->survey->entry_exists($entry_id)) {
continue;
} else {
if ($entry_id != self::NEW_ENTRY_ID && !$this->survey->can_modify_entry($real_user_id, $this->survey->entries[$entry_id]['user_id'])) {
$errors[] = $this->user->lang('NO_AUTH_OPERATION');
continue;
}
}
}
}
$answers = array();
$abort = false;
foreach ($this->survey->questions as $question_id => $question) {
$answers[$question_id] = $this->request->is_set_post("answer_{$entry_id}_{$question_id}") ? $this->request->variable("answer_{$entry_id}_{$question_id}", '', true) : '';
if ($question['type'] == survey::$QUESTION_TYPES['DROP_DOWN_MENU']) {
if (isset($question['choices'][$answers[$question_id]])) {
$answers[$question_id] = $question['choices'][$answers[$question_id]]['text'];
} else {
$answers[$question_id] = '';
}
} else {
if ($question['type'] == survey::$QUESTION_TYPES['MULTIPLE_CHOICE']) {
$answers_choice_array = array_unique($this->request->variable("answer_{$entry_id}_{$question_id}", array(0)));
$answers[$question_id] = array();
foreach ($answers_choice_array as $choice_id) {
if (isset($question['choices'][$choice_id])) {
$answers[$question_id][] = $question['choices'][$choice_id]['text'];
}
}
$answers[$question_id] = implode(",", $answers[$question_id]);
}
}
$old_exists = $entry_id != self::ADDUSER_ENTRY_ID && $entry_id != self::NEW_ENTRY_ID && isset($this->survey->entries[$entry_id]['answers'][$question_id]);
$old_value = $old_exists ? $this->survey->entries[$entry_id]['answers'][$question_id] : 0;
if ($answers[$question_id] != '') {
if (!$this->survey->check_answer($answers[$question_id], $question_id)) {
$errors[] = $this->user->lang('SURVEY_INVALID_ANSWER');
$abort = true;
continue;
}
$filled_out = true;
if ($this->survey->has_cap($question_id) && !$this->survey->can_manage($real_user_id)) {
$diff = $this->survey->modify_sum_entry($question_id, false, true, $answers[$question_id], $old_exists, $old_value);
if ($diff != 0 && $this->survey->cap_exceeded($question_id, $diff)) {
$errors[] = $this->user->lang('SURVEY_CAP_EXEEDED', $this->survey->questions[$question_id]['label']);
$abort = true;
continue;
}
}
if (!$old_exists || $old_value != $answers[$question_id]) {
$changed = true;
}
} else {
if ($old_exists && $old_value != '') {
$changed = true;
}
}
}
if ($abort) {
continue;
}
if ($filled_out) {
if ($entry_id == self::ADDUSER_ENTRY_ID || $entry_id == self::NEW_ENTRY_ID) {
$this->survey->add_entry($entry_user_id, $answers);
} else {
if ($changed) {
$this->survey->modify_entry($entry_id, $answers);
}
}
} else {
if ($entry_id != self::ADDUSER_ENTRY_ID && $entry_id != self::NEW_ENTRY_ID) {
$this->survey->delete_entry($entry_id);
}
}
}
return $errors;
}