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package MasterServer::Database::SQLite::dbCore;
use strict;
use warnings;
use POSIX qw/strftime/;
use Exporter 'import';
our @EXPORT = qw| database_login dump_database |;
################################################################################
## login to the database with credentials provided in the config file.
## returns dbh object or quits application on error.
################################################################################
sub database_login {
my $self = shift;
my @db_type = split(':', $self->{dblogin}->[0]);
# check if database file exists
my $db_file = [split(':', $self->{dblogin}->[0])]->[2];
$db_file =~ s/dbname=//i;
# fatal error if database does not exist
unless (-e $db_file) {
$self->log("fatal", "Database file $db_file does not exist!");
$self->halt();
}
# connect to SQLite database
my $dbh = DBI->connect(@{$self->{dblogin}}, {PrintError => 1});
# verify that the database connected
if (defined $dbh) {
$self->log("info","Connected to the $db_type[1] database $db_type[2]");
$dbh->{printerror} = 1;
# synchronous read/writing to the SQLite file OFF. Faster, but risk on data
# loss on crashes, premature exits or power failure.
$dbh->do("PRAGMA synchronous = OFF");
# allow the use of foreign keys (referencing)
$dbh->do("PRAGMA foreign_keys = ON");
return $dbh;
}
else {
# fatal error
$self->log("fatal", "$DBI::errstr!");
$self->halt();
}
}
################################################################################
## Dump the database in the data/dump folder.
## useful for backups, historical data
################################################################################
sub dump_database {
my $self = shift;
my $time = strftime('%Y-%m-%d-%H-%M',localtime);
# read db credentials from db login
my @db_type = split ':', $self->{dblogin}->[0];
$db_type[2] =~ s/dbname=//;
my @db_path = split '/', $db_type[2];
# make a copy of the database file
system("cp $db_type[2] $self->{root}/data/dumps/SQLite-$time-$db_path[-1]");
$self->log("dump", "Dumping database to /data/dumps/SQLite-$time-$db_path[-1]");
}
1;
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