Mail::SpamAssassin::BayesStore::MySQL - MySQL Specific Bayesian Storage Module Implementation
This module implements a MySQL specific based bayesian storage module. It requires that you are running at least version 4.1 of MySQL, if you are running a version of MySQL < 4.1 then several aspects of this module will fail and possibly corrupt your bayes database data.
In addition, this module will support rollback on error, if you are using the InnoDB database table type in MySQL. For more information please review the instructions in sql/README.bayes.
public instance (Integer, Integer, Integer, Integer) token_expiration(\% $opts, Integer $newdelta, @ @vars)
Description:
This method performs the database specific expiration of tokens based on
the passed in $newdelta and @vars.
public (Boolean) seen_put (string $msgid, char $flag)
Description:
This method records $msgid as the type given by $flag. $flag is one of
two values 's' for spam and 'h' for ham.
public instance (Boolean) seen_delete (string $msgid)
Description:
This method removes $msgid from the database.
public instance (Boolean) set_last_expire (Integer $time)
Description: This method sets the last expire time.
public instance (String $time) set_running_expire_tok ()
Description: This method sets the time that an expire starts running.
public instance (Boolean) remove_running_expire_tok ()
Description: This method removes the row in the database that indicates that and expire is currently running.
public instance (Boolean) nspam_nham_change (Integer $num_spam, Integer $num_ham)
Description: This method updates the number of spam and the number of ham in the database.
public instance (Boolean) tok_touch (String $token, String $atime)
Description:
This method updates the given tokens ($token) atime.
The assumption is that the token already exists in the database.
public instance (Boolean) tok_touch (\@ $tokens String $atime)
Description:
This method does a mass update of the given list of tokens $tokens, if the existing token
atime is < $atime.
The assumption is that the tokens already exist in the database.
We should never be touching more than N_SIGNIFICANT_TOKENS, so we can make some assumptions about how to handle the data (ie no need to batch like we do in tok_get_all)
public instance (Boolean) cleanup ()
Description: This method peroms any cleanup necessary before moving onto the next operation.
public instance (Boolean) clear_database ()
Description: This method deletes all records for a particular user.
Callers should be aware that any errors returned by this method could causes the database to be inconsistent for the given user.
private instance (Boolean) _connect_db ()
Description: This method connects to the SQL database.
private instance (Boolean) _initialize_db ()
Description: This method will check to see if a user has had their bayes variables initialized. If not then it will perform this initialization.
private instance (Boolean) _put_token (string $token, integer $spam_count, integer $ham_count, string $atime)
Description: This method performs the work of either inserting or updating a token in the database.
private instance (Boolean) _put_tokens (\% $tokens, integer $spam_count, integer $ham_count, string $atime)
Description: This method performs the work of either inserting or updating tokens in the database.