SaltedHashLoginGenerator - welcome processing query

I've just integrated the SaltedHashLoginGenerator into my code and now
trying to understand how it works :slight_smile:

Stuck on the 'welcome' action processing.

The welcome action is empty yet I note from the log that the database
is read/updated (see below) before the 'welcome' action is processed -
I'm trying to understand what triggers database processing?

Processing UserController#welcome (for at 2006-11-07
06:47:49) [GET]
  Session ID: 5ef5e258b317f19510ac8124cabe8172
  Parameters: {"user"=>{"id"=>"1"}, "action"=>"welcome",
  e[4;36;1mUser Load (0.001114)e[0m e[0;1mSELECT * FROM users WHERE
(id = '1' AND security_token =
'62e047e834e688ebb215d1c5cc2bd1fca9fde33b') LIMIT 1e[0m
  e[4;35;1mUser Columns (0.002074)e[0m e[0mSHOW FIELDS FROM userse[0m
  e[4;36;1mUser Update (0.000590)e[0m e[0;1mUPDATE users SET
`deleted` = 0, `login` = 'leelon', `lastname` = '', `delete_after` =
NULL, `role` = NULL, `salt` =
'84d0b7c0b5b53b734118d25b80d4a7e75908ab28', `salted_password` =
'92a5057e37efc0a05848866c491e81a99d678d43', `verified` = 1,
`security_token` = '62e047e834e688ebb215d1c5cc2bd1fca9fde33b',
`token_expiry` = '2006-11-08 06:47:22', `email` = 'leelon', `firstname`
= '' WHERE id = 1e[0m