Best practice when dealing with session variables?

Tuesday 25 January 2011 7:28:11 am

Hi,

We had this line of code throwing errors to our log when the session variable is not set:
{def $my_var=ezhttp( 'my_session_var', 'session' )}
I've replaced it with these lines to stop the errors:
{def $my_var=false()}
{if is_set(ezhttp( 'my_session_var', 'session' ))}
{set $my_var=ezhttp( 'my_session_var', 'session' )}
{/if}
I'm not sure if this is the right way to do it though. Is there a better way?
Any input appreciated!

Tuesday 25 January 2011 11:48:09 am

Hello Helge,
in your second example, error is throwing any way.
To avoid it, you can use this syntax:

{def $my_var=false()}
   {if ezhttp_hasvariable( 'my_session_var', 'session' )}
      {set $my_var=ezhttp( 'my_session_var', 'session' )}
   {if}
{undef $my_var}

or, if you prefer have it in one line:

{def $my_var=cond(ezhttp_hasvariable( 'my_session_var', 'session' ), ezhttp( 'my_session_var', 'session' ), false())}

--
Developer at Open Wide