Update src/streamlit_app.py

src/streamlit_app.py

@@ -48,8 +48,9 @@ scheduler = CommitScheduler(
 #            f.write("\n")
 #====
 
+if 'cont_r' not in st.session_state:
+        st.session_state.cont_r = 0
 
-cont_r = 0
 
 # ---- CONFIG ----
 st.set_page_config(page_title="Image Preference Study", layout="centered")
@@ -102,14 +103,14 @@ if st.button("Submit"):
         if results[key] == "-":
             cont += 1
     
-    if code_prov is "":
+    if code_prov == "":
         st.error("Please, insert your provided code at the beginning of this form. Then, try submitting again.")
     elif cont != 0:
         st.error("Sorry, you have not evaluated all pairs. Please, check again.")    
     else:
-        if cont_r == 0:     
+        if st.session_state.cont_r == 0:     
 
-            cont_r += 1 
+            st.session_state.cont_r += 1 
             #st.success("Thank you! Your responses have been recorded.")
             #st.write("Thank you! Your selection has been recorded.")
             st.success("Thank you! Your selection has been recorded.")