added latest models

app/routes/forms.py

@@ -14,7 +14,7 @@ from datetime import datetime
 
 from ..core.db import get_db
 from ..core.security import get_current_user
-from ..models import User, Form, FormQuestion, ConditionalRule, PublicForm, QuestionType, ConditionType
+from ..models import User, Form, FormQuestion, ConditionalRule, PublicForm, QuestionType, ConditionType, FormResponse as FormResponseModel, ResponseAnswer, ChatMessage
 from ..schemas.form import (
     FormCreate, FormUpdate, FormResponse, FormGenerationResponse,
     QuestionCreate, QuestionUpdate, QuestionResponse,
@@ -239,9 +239,35 @@ async def delete_form(
             detail="Form not found"
         )
     
+    # Delete all related records in order to respect foreign key constraints
+    # 1. Delete chat messages
+    db.query(ChatMessage).filter(ChatMessage.form_id == form_id).delete(synchronize_session=False)
+    
+    # 2. Delete response answers (linked to responses)
+    response_ids = [r.id for r in db.query(FormResponseModel.id).filter(FormResponseModel.form_id == form_id).all()]
+    if response_ids:
+        db.query(ResponseAnswer).filter(ResponseAnswer.response_id.in_(response_ids)).delete(synchronize_session=False)
+    
+    # 3. Delete form responses
+    db.query(FormResponseModel).filter(FormResponseModel.form_id == form_id).delete(synchronize_session=False)
+    
+    # 4. Delete public forms (share links)
+    db.query(PublicForm).filter(PublicForm.form_id == form_id).delete(synchronize_session=False)
+    
+    # 5. Delete conditional rules (linked to questions)
+    question_ids = [q.id for q in db.query(FormQuestion.id).filter(FormQuestion.form_id == form_id).all()]
+    if question_ids:
+        db.query(ConditionalRule).filter(ConditionalRule.question_id.in_(question_ids)).delete(synchronize_session=False)
+    
+    # 6. Delete form questions
+    db.query(FormQuestion).filter(FormQuestion.form_id == form_id).delete(synchronize_session=False)
+    
+    # 7. Finally delete the form
     db.delete(form)
     db.commit()
     
+    logger.info(f"Deleted form {form_id} and all associated data for user {current_user.id}")
+    
     return None