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Description: This methods creates a new instance of the Mail::SpamAssassin::BayesStore::SQL object. It expects to be passed an instance of the Mail::SpamAssassin:Bayes object which is passed into the Mail::SpamAssassin::BayesStore parent object.
This method sets up the database connection and determines the username to use in queries.
Description: This method ensures that the database connection is properly setup and working. If necessary it will initialize a user's bayes variables so that they can begin using the database immediately.
Description: This method ensures that the database connetion is properly setup and working. If necessary it will initialize a users bayes variables so that they can begin using the database immediately.
Description: This method is unused for the SQL based implementation.
Description: This method performs a calculation on the data to determine the optimum atime for token expiration.
Description: This method performs the database specific expiration of tokens based on the passed in $newdelta and @vars.
Description: This method determines if a database sync is currently required.
Unused for SQL based implementation.
Description: This method retrieves the stored value, if any, for $msgid. The return value is the stored string ('s' for spam and 'h' for ham) or undef if $msgid is not found.
Description: This method records $msgid as the type given by $flag. $flag is one of two values 's' for spam and 'h' for ham.
Description: This method removes $msgid from the database.
Description: This method retrieves the various administrative variables used by the Bayes process and database.
The values returned in the array are in the following order:
0: scan count base
1: number of spam
2: number of ham
3: number of tokens in db
4: last expire atime
5: oldest token in db atime
6: db version value
7: last journal sync
8: last atime delta
9: last expire reduction count
Description: This method loops over all tokens, computing the probability for the token and then printing it out according to the passed in token.
Description: This method sets the last expire time.
Description: This method determines if an expire is currently running and returns the last time set.
There can be multiple times, so we just pull the greatest (most recent) value.
Description: This method sets the time that an expire starts running.
Description: This method removes the row in the database that indicates that and expire is currently running.
Description: This method retrieves a specificed token ($token) from the database and returns it's spam_count, ham_count and last access time.
Description: This method retrieves the specified tokens ($tokens) from storage and returns an array ref of arrays spam count, ham acount and last access time.
Description: This method takes a $spam_count and $ham_count and adds it to $tok along with updating $toks atime with $atime.
Description: This method takes a $spam_count and $ham_count and adds it to all of the tokens in the $tokens hash ref along with updating each tokens atime with $atime.
Description: This method retrieves the total number of spam and the total number of ham learned.
Description: This method updates the number of spam and the number of ham in the database.
Description: This method updates the given tokens ($token) atime.
The assumption is that the token already exists in the database.
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)
Description: This method peroms any cleanup necessary before moving onto the next operation.
Description: This method returns a regexp which indicates a magic token.
Description: This method performs a sync of the database
Description: Performs an upgrade of the database from one version to another, not currently used in this implementation.
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.
Description: This method will dump the users database in a marchine readable format.
Description: This method restores a database from the given filename, $filename.
Callers should be aware that any errors returned by this method could causes the database to be inconsistent for the given user.
Description: This method returns a boolean value indicating if the database is in a readable state.
Description: This method returns a boolean value indicating if the database is in a writable state.
Description: This method connects to the SQL database.
Description: Gets the current version of the database from the special global vars tables.
Description: This method will check to see if a user has had their bayes variables initialized. If not then it will perform this initialization.
Description: This method performs the work of either inserting or updating a token in the database.
Description: This method performs the work of either inserting or updating tokens in the database.
Description: This method finds the atime of the oldest token in the database.
The use of min(atime) in the SQL is ugly and but really the most efficient way of getting the oldest_token_age after we've done a mass expire. It should only be called at expire time.
Description: This method gets the total number of hapaxes (spam_count + ham_count == 1) in the token database for a user.
Description: This method gets the total number of lowfreq tokens (spam_count < 8 and ham_count < 8) in the token database for a user
Description: This method returns the string to be used in SELECT statements to represent the token column.
The default is to use the RPAD function to pad the token out to 5 characters.