add check to asses the dropddown values are different

app.py

@@ -135,7 +135,6 @@ def main():
         def redirect():
             pass
 
-        
         def save_results(answers):
             api_token = os.getenv("HUGGINGFACE_TOKEN")
             if not api_token:
@@ -169,12 +168,23 @@ def main():
                     f.write("\n")
             scheduler.push_to_hub()
  
+        def check_answer(dropdown1, dropdown2, dropdown3, dropdown4):
+            if '-' in [dropdown1, dropdown2, dropdown3, dropdown4]:
+                raise gr.Error('Please select a value for each saliency method')
+            # check if all values are different 1,2,3,4
+            if len(set([dropdown1, dropdown2, dropdown3, dropdown4])) < 4:
+                print(set([dropdown1, dropdown2, dropdown3, dropdown4]))
+                raise gr.Error('Please select different values for each saliency method')
+
         def add_answer(dropdown1,dropdown2,dropdown3,dropdown4, answers):
             rank = [dropdown1,dropdown2,dropdown3,dropdown4]
             answers.append(rank)
             return answers
 
         submit_button.click(
+            check_answer, 
+            inputs=[dropdown1, dropdown2, dropdown3, dropdown4]
+        ).success(
             update_state,
             inputs=user_state,
             outputs=user_state

config/config.yaml

@@ -6,6 +6,8 @@ repo_id: "MarcoParola/saliency-evaluation"
 gui:
   max_img_examples: 16
 
+experiments: exp1
+
 results:
   save_dir: results
   exp1_dir: exp1