hpr-tools/Database/remodel_db_series_eps

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#!/usr/bin/env perl
#===============================================================================
#
# FILE: remodel_db_series_eps
#
# USAGE: ./remodel_db_series _eps
#
# DESCRIPTION: Script to perform the steps necessary to remodel the series
# information in the hpr_hpr database. We want to have
# a many-to-many relationship between episodes and series.
#
# OPTIONS: ---
# REQUIREMENTS: ---
# BUGS: ---
# NOTES: This code is extremely trivial. It could be done just as well
# with plain SQL. However, having a script will potentially
# allow other things to be done during the table load, such as
# reading other series associations from a file.
# AUTHOR: Dave Morriss (djm), Dave.Morriss@gmail.com
# VERSION: 0.0.1
# CREATED: 2015-06-26 12:30:27
# REVISION: 2015-06-26 15:28:12
#
#===============================================================================
use 5.010;
use strict;
use warnings;
use utf8;
use YAML::Syck;
use DBI;
#
# Version number (manually incremented)
#
our $VERSION = '0.0.1';
#
# Script and directory names
#
( my $PROG = $0 ) =~ s|.*/||mx;
( my $DIR = $0 ) =~ s|/?[^/]*$||mx;
$DIR = '.' unless $DIR;
#-------------------------------------------------------------------------------
# Declarations
#-------------------------------------------------------------------------------
#
# Constants and other declarations
#
my $basedir = "$ENV{HOME}/HPR/Database";
my $configfile = "$basedir/.hpr_db.yml";
my ( $dbh, $sth1, $sth2, $sth3, $sth4, $h1, $h2, $rv );
#
# Enable Unicode mode
#
binmode STDOUT, ":encoding(UTF-8)";
binmode STDERR, ":encoding(UTF-8)";
#
# Load configuration data
#
my %config = %{ LoadFile($configfile) };
#-------------------------------------------------------------------------------
# Connect to the database
#-------------------------------------------------------------------------------
my $dbname = $config{database}->{name};
my $dbuser = $config{database}->{user};
my $dbpwd = $config{database}->{password};
$dbh
= DBI->connect( "dbi:mysql:dbname=$dbname", $dbuser, $dbpwd,
{ AutoCommit => 1 } )
or die $DBI::errstr;
#
# Enable client-side UTF8
#
$dbh->{mysql_enable_utf8} = 1;
#-------------------------------------------------------------------------------
# Set up the SQL and query the 'eps' table since everything has a series, even
# if it's 0
#-------------------------------------------------------------------------------
$sth1 = $dbh->prepare(q{SELECT * FROM eps ORDER BY id DESC});
$sth2 = $dbh->prepare(q{INSERT INTO series_eps VALUES(?,?)});
$sth1->execute;
if ( $dbh->err ) {
die $dbh->errstr;
}
#-------------------------------------------------------------------------------
# Walk the entire 'eps' table simply adding rows into the 'series_eps' table
#-------------------------------------------------------------------------------
while ( $h1 = $sth1->fetchrow_hashref ) {
$sth2->execute($h1->{series},$h1->{id});
if ( $dbh->err ) {
die $dbh->errstr;
}
}
exit;
# vim: syntax=perl:ts=8:sw=4:et:ai:tw=78:fo=tcrqn21:fdm=marker