def patients():
st.header('PATIENTS')
option_list = ['', 'Add patient', 'Update patient', 'Delete patient', 'Show complete patient record', 'Search patient']
option = st.sidebar.selectbox('Select function', option_list)
p = Patient()
if (option == option_list[1] or option == option_list[2] or option == option_list[3]) and verify_edit_mode_password():
if option == option_list[1]:
st.subheader('ADD PATIENT')
p.add_patient()
elif option == option_list[2]:
st.subheader('UPDATE PATIENT')
p.update_patient()
elif option == option_list[3]:
st.subheader('DELETE PATIENT')
try:
p.delete_patient()
except sql.IntegrityError: # handles foreign key constraint failure issue (due to integrity error)
st.error('This entry cannot be deleted as other records are using it.')
elif option == option_list[4]:
st.subheader('COMPLETE PATIENT RECORD')
p.show_all_patients()
elif option == option_list[5]:
st.subheader('SEARCH PATIENT')
p.search_patient()
