Enhance transformation exercise formatting and improve choice option generation in VocabLessonView

- Added formatting for transformation exercises to display prompts as "Übersetze 'X' ins Bisaya", improving clarity for users.
- Updated the buildChoiceOptions method to exclude the prompt from the choice options, ensuring a more relevant selection for multiple choice questions.
- Enhanced console logging to provide better insights into the prompt and answer during choice option creation, aiding in debugging and user feedback.

backend/scripts/delete-all-family-words-exercises.js

@@ -0,0 +1,88 @@
+#!/usr/bin/env node
+/**
+ * Script zum Löschen ALLER "Familienwörter"-Übungen aus Bisaya-Kursen
+ * 
+ * Verwendung:
+ * node backend/scripts/delete-all-family-words-exercises.js
+ * 
+ * Löscht alle Grammatik-Übungen von "Familienwörter"-Lektionen, um Platz für neue zu schaffen.
+ */
+
+import { sequelize } from '../utils/sequelize.js';
+import VocabCourseLesson from '../models/community/vocab_course_lesson.js';
+import VocabGrammarExercise from '../models/community/vocab_grammar_exercise.js';
+
+async function deleteAllFamilyWordsExercises() {
+  await sequelize.authenticate();
+  console.log('Datenbankverbindung erfolgreich hergestellt.\n');
+
+  // Finde alle Bisaya-Kurse
+  const [bisayaLanguage] = await sequelize.query(
+    `SELECT id FROM community.vocab_language WHERE name = 'Bisaya' LIMIT 1`,
+    {
+      type: sequelize.QueryTypes.SELECT
+    }
+  );
+
+  if (!bisayaLanguage) {
+    console.error('❌ Bisaya-Sprache nicht gefunden.');
+    return;
+  }
+
+  const courses = await sequelize.query(
+    `SELECT id, title FROM community.vocab_course WHERE language_id = :languageId`,
+    {
+      replacements: { languageId: bisayaLanguage.id },
+      type: sequelize.QueryTypes.SELECT
+    }
+  );
+
+  console.log(`Gefunden: ${courses.length} Bisaya-Kurse\n`);
+
+  let totalDeleted = 0;
+  let totalLessons = 0;
+
+  for (const course of courses) {
+    console.log(`📚 Kurs: ${course.title} (ID: ${course.id})`);
+    
+    // Finde "Familienwörter"-Lektionen
+    const lessons = await VocabCourseLesson.findAll({
+      where: { 
+        courseId: course.id,
+        title: 'Familienwörter'
+      },
+      order: [['lessonNumber', 'ASC']]
+    });
+
+    console.log(`   ${lessons.length} "Familienwörter"-Lektionen gefunden`);
+
+    for (const lesson of lessons) {
+      // Lösche ALLE bestehenden Übungen
+      const deletedCount = await VocabGrammarExercise.destroy({
+        where: { lessonId: lesson.id }
+      });
+
+      console.log(`   🗑️  Lektion ${lesson.lessonNumber}: "${lesson.title}" - ${deletedCount} Übung(en) gelöscht`);
+      totalDeleted += deletedCount;
+      totalLessons++;
+    }
+    
+    console.log('');
+  }
+
+  console.log(`\n🎉 Zusammenfassung:`);
+  console.log(`   ${totalLessons} Lektionen bearbeitet`);
+  console.log(`   ${totalDeleted} Übungen gelöscht`);
+  console.log(`\n💡 Hinweis: Führe jetzt das update-family-words-exercises.js Script aus, um neue Übungen zu erstellen.`);
+}
+
+deleteAllFamilyWordsExercises()
+  .then(() => {
+    sequelize.close();
+    process.exit(0);
+  })
+  .catch((error) => {
+    console.error('❌ Fehler:', error);
+    sequelize.close();
+    process.exit(1);
+  });

frontend/src/views/social/VocabLessonView.vue

@@ -541,6 +541,14 @@ export default {
       if (!qData) return exercise.title;
       
       if (qData.question) return qData.question;
+      
+      // Für Transformation-Übungen: Formatiere als "Übersetze 'X' ins Bisaya"
+      if (qData.type === 'transformation' && qData.text) {
+        const sourceLang = qData.sourceLanguage || 'Deutsch';
+        const targetLang = qData.targetLanguage || 'Bisaya';
+        return `Übersetze "${qData.text}" ins ${targetLang}`;
+      }
+      
       if (qData.text) return qData.text;
       return exercise.title;
     },
@@ -769,18 +777,31 @@ export default {
         }
       }
     },
-    buildChoiceOptions(correctAnswer, allVocabs) {
+    buildChoiceOptions(correctAnswer, allVocabs, excludePrompt = null) {
       const options = new Set([correctAnswer]);
+      // Normalisiere alle Werte für den Vergleich (trim + lowercase)
+      const normalizedExcludeSet = new Set();
+      normalizedExcludeSet.add(this.normalizeVocab(correctAnswer));
+      // Wichtig: Der Prompt (die Frage) darf nicht in den Optionen erscheinen
+      if (excludePrompt) {
+        normalizedExcludeSet.add(this.normalizeVocab(excludePrompt));
+      }
+      
       // Füge 3 Distraktoren hinzu
       let attempts = 0;
-      const maxAttempts = 50; // Verhindere Endlosschleife
+      const maxAttempts = 100; // Erhöht, da wir mehr Filter haben
       
       while (options.size < 4 && allVocabs.length > 1 && attempts < maxAttempts) {
         attempts++;
         const randomVocab = allVocabs[Math.floor(Math.random() * allVocabs.length)];
         const distractor = this.vocabTrainerDirection === 'L2R' ? randomVocab.reference : randomVocab.learning;
-        if (distractor !== correctAnswer) {
-          options.add(distractor);
+        
+        // Prüfe: Distraktor darf nicht gleich correctAnswer oder excludePrompt sein (mit Normalisierung)
+        if (distractor && distractor.trim()) {
+          const normalizedDistractor = this.normalizeVocab(distractor);
+          if (!normalizedExcludeSet.has(normalizedDistractor) && !options.has(distractor)) {
+            options.add(distractor);
+          }
         }
       }
       
@@ -789,8 +810,9 @@ export default {
         const genericOptions = ['Option A', 'Option B', 'Option C', 'Option D'];
         let index = 0;
         while (options.size < 4 && index < genericOptions.length) {
-          if (!options.has(genericOptions[index])) {
-            options.add(genericOptions[index]);
+          const option = genericOptions[index];
+          if (!excludeSet.has(option)) {
+            options.add(option);
           }
           index++;
         }
@@ -836,8 +858,15 @@ export default {
       // Erstelle Choice-Optionen für Multiple Choice
       if (this.vocabTrainerMode === 'multiple_choice') {
         console.log('[VocabLessonView] Erstelle Choice-Optionen...');
-        this.vocabTrainerChoiceOptions = this.buildChoiceOptions(this.currentVocabQuestion.answer, this.vocabTrainerPool);
-        console.log('[VocabLessonView] Choice-Optionen erstellt:', this.vocabTrainerChoiceOptions.length);
+        console.log('[VocabLessonView] Prompt:', this.currentVocabQuestion.prompt);
+        console.log('[VocabLessonView] Answer:', this.currentVocabQuestion.answer);
+        // Wichtig: Der Prompt (die Frage) darf nicht in den Optionen erscheinen
+        this.vocabTrainerChoiceOptions = this.buildChoiceOptions(
+          this.currentVocabQuestion.answer, 
+          this.vocabTrainerPool,
+          this.currentVocabQuestion.prompt // Exkludiere den Prompt
+        );
+        console.log('[VocabLessonView] Choice-Optionen erstellt:', this.vocabTrainerChoiceOptions);
       }
       
       // Fokussiere Eingabefeld im Typing-Modus