+sub job_entry {
+ my ($self, $id) = @_;
+ my $job = $self->jobs->find($id, {prefetch => ['problem', 'owner']});
+ my %params = $job->get_columns;
+ $params{owner_name} = $job->owner->name;
+ $params{problem_name} = $job->problem->name;
+ $params{results} &&= decode_json $params{results};
+ $params{size} = length $params{source};
+ delete $params{source};
+ \%params
+}
+
+sub update_status {
+ my ($self) = @_;
+ my @jobs = $self->jobs->search(undef, {cache => 1})->all;
+ my %hash;
+ $hash{$_->get_column('problem'), $_->get_column('owner')} = [$_, $_->result ? 1 : 0] for @jobs;
+ my @problem_statuses = map { [split ($;), @{$hash{$_}} ] } keys %hash;
+
+ my @contest_statuses = map {
+ my $contest = $_->id;
+ my @standings = $self->standings($contest);
+ map { [$contest, $_->{user}, $_->{score}, $_->{rank}] } @standings;
+ } $self->contests->all;
+
+ my $txn = sub {
+ $self->problem_statuses->delete;
+ $self->problem_statuses->populate([[qw/problem owner job solved/], @problem_statuses]);
+ $self->contest_statuses->delete;
+ $self->contest_statuses->populate([[qw/contest owner score rank/], @contest_statuses]);
+ };
+
+ $self->txn_do($txn);
+}
+
+1;
+
+__END__
+
+=encoding utf-8
+
+=head1 NAME
+
+Gruntmaster::Data - Gruntmaster 6000 Online Judge -- database interface and tools
+
+=head1 SYNOPSIS
+
+ my $db = Gruntmaster::Data->connect('dbi:Pg:');
+
+ my $problem = $db->problem('my_problem');
+ $problem->update({timeout => 2.5}); # Set time limit to 2.5 seconds
+ $problem->rerun; # And rerun all jobs for this problem
+
+ # ...
+
+ my $contest = $db->contests->create({ # Create a new contest
+ id => 'my_contest',
+ name => 'My Awesome Contest',
+ start => time + 100,
+ end => time + 1900,
+ });
+ $db->contest_problems->create({ # Add a problem to the contest
+ contest => 'my_contest',
+ problem => 'my_problem',
+ });
+
+ say 'The contest has not started yet' if $contest->is_pending;
+
+ # ...
+
+ my @jobs = $db->jobs->search({contest => 'my_contest', owner => 'MGV'})->all;
+ $_->rerun for @jobs; # Rerun all jobs sent by MGV in my_contest
+
+=head1 DESCRIPTION
+
+Gruntmaster::Data is the interface to the Gruntmaster 6000 database. Read the L<DBIx::Class> documentation for usage information.
+
+In addition to the typical DBIx::Class::Schema methods, this module contains several convenience methods:
+
+=over
+
+=item contests
+
+Equivalent to C<< $schema->resultset('Contest') >>
+
+=item contest_problems
+
+Equivalent to C<< $schema->resultset('ContestProblem') >>
+
+=item jobs
+
+Equivalent to C<< $schema->resultset('Job') >>
+
+=item problems
+
+Equivalent to C<< $schema->resultset('Problem') >>
+
+=item users
+
+Equivalent to C<< $schema->resultset('User') >>
+
+=item contest($id)
+
+Equivalent to C<< $schema->resultset('Contest')->find($id) >>
+
+=item job($id)
+
+Equivalent to C<< $schema->resultset('Job')->find($id) >>
+
+=item problem($id)
+
+Equivalent to C<< $schema->resultset('Problem')->find($id) >>
+
+=item user($id)
+
+Equivalent to C<< $schema->resultset('User')->find($id) >>
+
+=item user_list
+
+Returns a list of users as an arrayref containing hashrefs.
+
+=item user_entry($id)
+
+Returns a hashref with information about the user $id.
+
+=item problem_list([%args])
+
+Returns a list of problems grouped by level. A hashref with levels as keys.
+
+Takes the following arguments:
+
+=over
+
+=item owner
+
+Only show problems owned by this user
+
+=item contest
+
+Only show problems in this contest
+
+=back
+
+=item problem_entry($id, [$contest, $user])
+
+Returns a hashref with information about the problem $id. If $contest and $user are present, problem open data is updated.
+
+=item contest_list([%args])
+
+Returns a list of contests grouped by state. A hashref with the following keys:
+
+=over
+
+=item pending
+
+An arrayref of hashrefs representing pending contests
+
+=item running
+
+An arrayref of hashrefs representing running contests
+
+=item finished
+
+An arrayref of hashrefs representing finished contests
+
+=back
+
+Takes the following arguments:
+
+=over
+
+=item owner
+
+Only show contests owned by this user.
+
+=back
+
+=item contest_entry($id)
+
+Returns a hashref with information about the contest $id.
+
+=item job_list([%args])
+
+Returns a list of jobs as an arrayref containing hashrefs. Takes the following arguments:
+
+=over
+
+=item owner
+
+Only show jobs submitted by this user.
+
+=item contest
+
+Only show jobs submitted in this contest.
+
+=item problem
+
+Only show jobs submitted for this problem.
+
+=item page
+
+Show this page of results. Defaults to 1. Pages have 10 entries, and the first page has the most recent jobs.
+
+=back
+
+=item job_entry($id)
+
+Returns a hashref with information about the job $id.
+
+=back
+
+=head1 AUTHOR
+
+Marius Gavrilescu E<lt>marius@ieval.roE<gt>
+
+=head1 COPYRIGHT AND LICENSE
+
+Copyright (C) 2014 by Marius Gavrilescu
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself, either Perl version 5.18.1 or,
+at your option, any later version of Perl 5 you may have available.
+