mdw@git.distorted.org.uk Git - dvddb/blob - upgrade-v3

   1 #! /usr/bin/perl -w
   2
   3 use open ":utf8";
   4 use strict;
   5
   6 use DBI;
   7
   8 BEGIN { binmode STDOUT, ":utf8"; }
   9
  10 my $DB = DBI->connect("dbi:Pg:host=roadstar", "", "",
  11                       { AutoCommit => 0, RaiseError => 1 });
  12
  13 my $st_outer =
  14   $DB->prepare("SELECT title, COUNT(*) FROM old_dvd GROUP BY title");
  15 my $st_inner =
  16   $DB->prepare("SELECT disc, path, discid FROM old_dvd WHERE title = ?");
  17 my $st_add_set =
  18   $DB->prepare("INSERT INTO dvd_set (name, ndisc)
  19                 VALUES (?, ?)
  20                 RETURNING id");
  21 my $st_add_disc =
  22   $DB->prepare("INSERT INTO dvd_disc (set_id, disc, path, disc_id)
  23                 VALUES (?, ?, ?, ?)");
  24 $st_outer->execute;
  25
  26 OUTER: for (;;) {
  27   my @r = $st_outer->fetchrow_array; last OUTER unless @r;
  28   my ($title, $ndisc) = @r;
  29
  30   $st_add_set->execute($title, $ndisc);
  31   my ($set_id) = $st_add_set->fetchrow_array;
  32
  33   $st_inner->execute($title);
  34   INNER: for (;;) {
  35     my @r = $st_inner->fetchrow_array; last INNER unless @r;
  36     my ($disc, $path, $disc_id) = @r;
  37     $st_add_disc->execute($set_id, $disc, $path, $disc_id);
  38   }
  39 }
  40 $DB->commit; $DB->disconnect;