Resolve "Fragebogen: Single Choice CSV-Export unnötig kompliziert"

Closes #4308

Merge request studip/studip!3110

lib/models/Vote.php

@@ -98,7 +98,9 @@ class Vote extends QuestionnaireQuestion implements QuestionType
         $output = [];
 
         $options = $this['questiondata']['options'] ? $this['questiondata']['options']->getArrayCopy() : [];
+        $multiplechoice = (bool) $this['questiondata']['multiplechoice'];
 
+        if ($multiplechoice) {
             foreach ($options as $key => $option) {
                 $answerOption = [];
                 $countNobodys = 0;
@@ -121,6 +123,25 @@ class Vote extends QuestionnaireQuestion implements QuestionType
                 }
                 $output[$option] = $answerOption;
             }
+        } else {
+
+            $answerOption = [];
+            $countNobodys = 0;
+
+            foreach ($this->answers as $answer) {
+                $answerData = $answer['answerdata']->getArrayCopy();
+
+                if ($answer['user_id'] && $answer['user_id'] !== 'nobody') {
+                    $userId = $answer['user_id'];
+                } else {
+                    $userId = _('unbekannt') . ' ' . ++$countNobodys;
+                }
+                $answerOption[$userId] = $options[$answerData['answers']];
+            }
+
+            $question = strip_tags($this['questiondata']['description']);
+            $output[$question] = $answerOption;
+        }
         return $output;
     }
 }