anchor.diff:  
     METHOD add.
   
  -    DATA: lo_persistence TYPE REF TO lcl_persistence.
  +    DATA: lo_persistence TYPE REF TO lcl_persistence_repo.
   
   
       CREATE OBJECT lo_persistence.
  
positive.code:   ENDIF.
  
    TRY.
        CREATE OBJECT lo_main.
        lcl_gui=>call_page( lo_main ).
      CATCH lcx_exception INTO lx_exception.
  
negative.code:     READ TABLE lt_fields INDEX 1 ASSIGNING <ls_field>.
      ASSERT sy-subrc = 0.
      rs_comment-username = <ls_field>-value.
      lcl_persistence_user=>set_username( rs_comment-username ).
  
      READ TABLE lt_fields INDEX 2 ASSIGNING <ls_field>.
      ASSERT sy-subrc = 0.
      rs_comment-email = <ls_field>-value.
      lcl_persistence_user=>set_email( rs_comment-email ).
  
      READ TABLE lt_fields INDEX 3 ASSIGNING <ls_field>.
      ASSERT sy-subrc = 0.
  