Main Koha release repository
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132 lines
4.3 KiB
132 lines
4.3 KiB
#!/usr/bin/perl
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use strict;
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use warnings;
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use CGI qw ( -utf8 );
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# use Data::Dumper;
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use C4::Context;
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use C4::Auth;
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my $q = CGI->new();
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my ($template, $loggedinuser, $cookie) = get_template_and_user(
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{
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template_name => "admin/admin-home.tt", # whatever, we don't really use the template anyway.
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query => $q,
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type => "intranet",
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authnotrequired => 0,
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flagsrequired => {parameters => 'parameters_remaining_permissions'},
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debug => 1,
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}
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);
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my $dbh = C4::Context->dbh;
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my $tz_sth = $dbh->prepare("SHOW VARIABLES LIKE 'time_zone'");
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$tz_sth->execute();
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my $now_sth = $dbh->prepare("SELECT now()");
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$now_sth->execute();
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print $q->header(),
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$q->html(
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$q->body(
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$q->p("This is a test for debugging purposes. It isn't supposed to look pretty.")
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.
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$q->h1("Dumping ENV:")
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.
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join("\n<br\>", map {"$_ = $ENV{$_}"} sort keys %ENV)
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.
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$q->h1("Checking different TIME elements in the system:")
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. "\n" . $q->p("perl localime: " . localtime)
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. "\n" . $q->p( "system(date): " . `date`)
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. "\n" . $q->p( "mysql dbh (Context) time_zone : " . $tz_sth->fetchrow)
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. "\n" . $q->p( "mysql dbh (Context) now() : " . $now_sth->fetchrow)
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)), "\n";
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__END__
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=pod
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=head1 MULTIPLE TIME ZONE SUPPORT
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Koha supports running multiple instances on the same server, even if they need to be homed
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in different timezones. However, your database must have the timezones installed (see below).
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If you are only running one installation of Koha, and want to change the timezone of the server,
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please do NOT use this feature at all, and instead set your system timezone via the OS. If you
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are running multiple Kohas, all in the same timezone, do the same.
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Only use this feature if
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you are running multiple Kohas on the same server, and they are not in the same timezone.
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=head2 Perl
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For the most part, in execution perl will respect the environmental
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variable TZ, if it is set. This affects calls to localtime() and other similar functions.
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Remember that the environment will be different for different users, and for cron jobs.
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See the example below.
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=head2 Apache2
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We affect the running perl code of Koha with the Apache directive:
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SetEnv TZ "US/Central"
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This should be added inside the VirtualHost definition for the intended Koha instance. In
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almost ALL cases, be sure to set it for both INTRANET and OPAC VirtualHosts. Remember this
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does not affect the command line environment for any terminal sessions, or your cron jobs.
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=head2 Database (mysql)
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Your MySQL installation must be configured with appropriate time zones. This extends beyond
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Koha and affects mysql itself. On debian, for example, you can use:
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mysql_tzinfo_to_sql /usr/share/zoneinfo | mysql -u root mysql
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See http://dev.mysql.com/doc/refman/5.0/en/time-zone-support.html
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=head2 cron/crontab
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Current versions of cron in debian allow ENV variables to be set in the lines preceding
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scheduled commands. They will be exported to the environment of the scheduled job. This is
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an example for crontab:
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TZ="US/Central"
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# m h dom mon dow command
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0 1 * * * /home/liblime/kohaclone/misc/cronjobs/overdue_notices.pl
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15 * * * * /home/liblime/kohaclone/misc/cronjobs/process_message_queue.pl
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*/10 * * * * /home/liblime/kohaclone/misc/migration_tools/rebuild_zebra.pl -b -z >/dev/null
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=head1 EXAMPLE
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Try these on a command line to confirm Context is setting time_zone based on TZ:
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perl -MC4::Context -e 'my $dbh=C4::Context->dbh; my $tz_sth=$dbh->prepare(q(SHOW VARIABLES LIKE "time_zone"));
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$tz_sth->execute(); print "mysql dbh (Context) time_zone : " . $tz_sth->fetchrow, "\n";'
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export TZ="US/Central"; # or any TZ other than the current one.
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perl -MC4::Context -e 'my $dbh=C4::Context->dbh; my $tz_sth=$dbh->prepare(q(SHOW VARIABLES LIKE "time_zone"));
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$tz_sth->execute(); print "mysql dbh (Context) time_zone : " . $tz_sth->fetchrow, "\n";'
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Then update your VirtualHosts to do, for example:
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SetEnv TZ "US/Central"
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Reset Apache, then on your intranet check out the debug page:
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cgi-bin/koha/admin/env_tz_test.pl
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The TZ that Koha has in effect and the TZ from the database should be displayed at the bottom.
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Hopefully they match what you set.
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=head1 BUGS
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WARNING: Multiple timezones may or may not work under mod_perl and mod_perl2.
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=head1 AUTHOR
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Joe Atzberger
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atz at liblime.com
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=cut
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