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package Portal; |
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|
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use base 'CGI::Application'; |
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use strict; |
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|
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use Config::IniFiles; |
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use DBI; |
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use Carp; |
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|
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use Data::Dumper; |
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|
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use lib '..'; |
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|
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my @persistent_vars = qw(p ms s); |
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|
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# read global.conf configuration |
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my $cfg_global = new Config::IniFiles( -file => '../global.conf' ) || die "can't open 'global.conf'"; |
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|
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# configuration options from global.conf |
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my $TEMPLATE_PATH = $cfg_global->val('portal', 'template_html') || die "need template_html in global.conf, section portal"; |
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my $CHARSET = $cfg_global->val('portal', 'charset') || 'ISO-8859-1'; |
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my $dsn = $cfg_global->val('portal', 'dbi_dsn') || die "need dsn in global.conf, section portal"; |
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my ($user,$passwd) = ($cfg_global->val('portal', 'dbi_user'), $cfg_global->val('portal', 'dbi_passwd')); |
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my $locale = $cfg_global->val('portal', 'locale') || 'C'; |
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|
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|
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my $dbh = DBI->connect("DBI:".$dsn,$user,$passwd, { RaiseError => 1 }); |
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|
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use POSIX qw(locale_h); |
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setlocale(LC_CTYPE, $locale); |
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use locale; |
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|
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sub setup { |
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my $self = shift; |
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$self->tmpl_path($TEMPLATE_PATH); |
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$self->run_modes( |
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'home' => 'show_home', |
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'ms' => 'show_mastersubject', |
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's' => 'show_subject', |
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'r' => 'search_resources', |
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); |
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$self->start_mode('home'); |
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$self->mode_param('p'); |
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|
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$self->header_props(-charset=>$CHARSET); |
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} |
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|
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|
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# home page |
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sub show_home { |
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my $self = shift; |
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|
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# Get the CGI.pm query object |
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my $q = $self->query(); |
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# template |
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|
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# read master template |
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my $tmpl = $self->use_template('home.html'); |
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|
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$tmpl->param('MasterSubjects' => $self->get_mastersubjects() ); |
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$tmpl->param('InfoTypes' => $self->get_infotypes() ); |
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|
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$tmpl->param('Subjects_letters' => $self->get_subjects_letters() ); |
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$tmpl->param('Subjects' => $self->get_subjects() ); |
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|
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return $tmpl->output; |
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|
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} |
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|
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|
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# MasterSubject |
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sub show_mastersubject { |
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my $self = shift; |
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|
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my $q = $self->query(); |
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|
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my $tmpl = $self->use_template('ms.html'); |
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|
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$tmpl->param('MasterSubjects' => $self->get_mastersubjects() ); |
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|
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my $ms = $self->get_mastersubject_by_id($q->param('ms')); |
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|
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$tmpl->param('title' => uc($ms->{'mastersubject'}) ); |
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$tmpl->param('search_field' => lc($ms->{'mastersubject'}) ); |
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|
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$tmpl->param('InfoTypes' => $self->get_infotypes() ); |
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|
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$tmpl->param('Subjects' => $self->get_subjects() ); |
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|
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return $tmpl->output; |
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|
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} |
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|
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|
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# Subject |
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sub show_subject { |
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my $self = shift; |
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|
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my $q = $self->query(); |
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|
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my $tmpl = $self->use_template('s.html'); |
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|
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$tmpl->param('MasterSubjects' => $self->get_mastersubjects() ); |
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|
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my $s = $self->get_subject_by_id($q->param('s')); |
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|
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$tmpl->param('title' => uc($s->{'subject'}) ); |
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$tmpl->param('search_field' => lc($s->{'subject'}) ); |
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|
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$tmpl->param('InfoTypes' => $self->get_infotypes() ); |
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|
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return $tmpl->output; |
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|
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} |
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|
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|
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# search for resources and display results |
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sub search_resources { |
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my $self = shift; |
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|
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my $q = $self->query(); |
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|
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my $tmpl = $self->use_template('r.html'); |
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|
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$tmpl->param('MasterSubjects' => $self->get_mastersubjects() ); |
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|
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if ($q->param('s')) { |
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my $s = $self->get_subject_by_id($q->param('s')); |
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|
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$tmpl->param('title' => uc($s->{'subject'}) ); |
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$tmpl->param('search_field' => lc($s->{'subject'}) ); |
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} elsif ($q->param('ms')) { |
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my $s = $self->get_mastersubject_by_id($q->param('ms')); |
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|
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$tmpl->param('title' => uc($s->{'mastersubject'}) ); |
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$tmpl->param('search_field' => lc($s->{'mastersubject'}) ); |
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} |
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|
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my $res = $self->get_resources(); |
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$tmpl->param('resource_results' => $res); |
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$tmpl->param('nr_results' => scalar @$res); |
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|
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$tmpl->param('limit_infotype' => $self->get_infotype_by_id($q->param('it'))->{'infotype'}); |
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|
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return $tmpl->output; |
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|
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} |
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|
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# |
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# load template and generate permanent valirables in template |
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# |
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|
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sub use_template { |
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my $self = shift; |
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my $q = $self->query(); |
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|
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my $tmpl_file = shift || croak("perm_vars need tempate file"); |
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my $tmpl = $self->load_tmpl($tmpl_file, global_vars => 1, die_on_bad_params => 0); |
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|
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$tmpl->param('self_url_full', $q->url(-relative=>1,-query=>1)); |
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$tmpl->param('self_url', $q->url(-relative=>1)); |
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|
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foreach my $var (@persistent_vars) { |
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$tmpl->param($var, $q->param($var)); |
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} |
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|
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return $tmpl; |
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} |
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|
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|
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# |
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# get data from database |
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# |
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|
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# get all MasterSubjects |
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sub get_mastersubjects { |
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my $self = shift; |
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|
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my $q = $self->query(); |
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|
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my $sql = qq{ |
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select mastersubject_id,upper(mastersubject) as mastersubject |
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from mastersubject |
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where mastersubject_id > 2 |
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order by mastersubject |
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}; |
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|
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my $sth = $dbh->prepare($sql); |
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$sth->execute(); |
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my $arr = $sth->fetchall_arrayref({}); |
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|
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return if (! $arr); |
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return $arr if (! $q->param('ms')); |
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|
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# add selected column |
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foreach my $i ( 0 .. (scalar @$arr)-1 ) { |
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$arr->[$i]->{'selected'} = ($arr->[$i]->{'mastersubject_id'} == $q->param('ms')); |
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} |
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return $arr; |
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} |
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|
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# get one MasterSubject by it's ID |
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sub get_mastersubject_by_id { |
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my $self = shift; |
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|
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my $id = shift || croak("need mastersubject id"); |
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|
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my $sql = qq{ |
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select mastersubject |
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from mastersubject |
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where mastersubject_id = ? |
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}; |
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|
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my $sth = $dbh->prepare($sql); |
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$sth->execute($id); |
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|
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return $sth->fetchrow_hashref(); |
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} |
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|
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# WARNING: Cludge ahead! |
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# |
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# stupid MySQL doesn't support subselects. |
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# |
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sub select_subject_id_where_mastersubject_id { |
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my $id = shift || croak("sub select emulation needs mastersubject_id"); |
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my $sql = qq{ select subject_id from sub_mastersubject where mastersubject_id = ? }; |
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|
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my $sth = $dbh->prepare($sql); |
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$sth->execute($id); |
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|
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my $arr = $sth->fetchall_hashref('subject_id'); |
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|
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$sql = join(",",keys %$arr); |
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$sql = "null" if (! $sql); |
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return $sql; |
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} |
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|
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|
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# get all InfoTypes |
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sub get_infotypes { |
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my $self = shift; |
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|
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my $q = $self->query(); |
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my @args; |
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|
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my $sql = qq{ |
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select distinct infotype.infotype_id,infotype.infotype, 0 as half |
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from res_sub_infotype,infotype |
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where res_sub_infotype.infotype_id=infotype.infotype_id and infotype.infotype_id > 1 |
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}; |
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|
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|
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# first check if subject is defined and limit by that, and only if it's not |
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# fallback to mastersubject |
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if ($q->param('s')) { |
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$sql .= qq{ |
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and res_sub_infotype.subject_id = ? |
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}; |
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push @args, $q->param('s'); |
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} elsif ($q->param('ms')) { |
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my $ss_sql = select_subject_id_where_mastersubject_id($q->param('ms')); |
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$sql .= qq{ and res_sub_infotype.subject_id in ($ss_sql) }; |
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} |
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|
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$sql .= qq{ |
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order by infotype |
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}; |
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|
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my $sth = $dbh->prepare($sql); |
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$sth->execute(@args); |
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|
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my $arr = $sth->fetchall_arrayref({}); |
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|
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# find element which is on half of list |
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my $half = int(scalar @$arr / 2) - 1; |
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$arr->[$half]->{half} = 1 if ($half > 0); |
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|
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return $arr if (! $q->param('it')); |
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|
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# add selected column |
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foreach my $i ( 0 .. (scalar @$arr)-1 ) { |
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$arr->[$i]->{'selected'} = ($arr->[$i]->{'infotype_id'} == $q->param('it')); |
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} |
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return $arr; |
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} |
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|
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# get first letters for all Subjects |
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sub get_subjects_letters { |
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my $self = shift; |
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|
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my $sql = qq{ |
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select distinct substring(subject from 1 for 1) as letter |
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from subject |
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where subject_id > 1 |
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order by substring(subject from 1 for 1) |
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}; |
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|
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my $sth = $dbh->prepare($sql); |
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$sth->execute(); |
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|
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return $sth->fetchall_arrayref({}); |
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} |
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|
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# get all Subjects |
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sub get_subjects { |
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my $self = shift; |
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|
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my $q = $self->query(); |
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my @args; |
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|
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my $sql = qq{ |
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select subject.subject_id,subject.subject,sub_mastersubject.mastersubject_id |
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from subject,sub_mastersubject |
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where subject.subject_id=sub_mastersubject.subject_id |
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and subject.subject_id > 1 |
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}; |
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|
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if ($q->param('s_letter')) { |
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push @args,$q->param('s_letter') . '%'; |
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$sql .= qq{ |
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and upper(subject.subject) like upper(?) |
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}; |
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} |
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|
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if ($q->param('ms')) { |
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push @args,$q->param('ms'); |
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$sql .= qq{ |
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and sub_mastersubject.mastersubject_id = ? |
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}; |
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} |
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|
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$sql .= qq{ |
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order by subject.subject |
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}; |
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|
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my $sth = $dbh->prepare($sql); |
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$sth->execute(@args); |
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|
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return $sth->fetchall_arrayref({}); |
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} |
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|
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# get one Subject by it's ID |
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sub get_subject_by_id { |
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my $self = shift; |
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|
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my $id = shift || croak("need subject id"); |
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|
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my $sql = qq{ |
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select subject |
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from subject |
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where subject_id = ? |
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}; |
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|
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my $sth = $dbh->prepare($sql); |
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$sth->execute($id); |
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|
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return $sth->fetchrow_hashref(); |
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} |
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|
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# get one InfoType by it's ID |
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sub get_infotype_by_id { |
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my $self = shift; |
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|
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my $id = shift || croak("need infotype id"); |
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|
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my $sql = qq{ |
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select infotype |
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from infotype |
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where infotype_id = ? |
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}; |
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|
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my $sth = $dbh->prepare($sql); |
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$sth->execute($id); |
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|
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return $sth->fetchrow_hashref(); |
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} |
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|
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# get add resources for given criteria |
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sub get_resources { |
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my $self = shift; |
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|
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my $q = $self->query(); |
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my @args; |
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|
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my $sql = qq{ |
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select distinct resource.resource_id, title, infotype.infotype, coverage_detail, url |
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}; |
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|
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my $sql_from = qq{ |
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from resource,infotype |
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}; |
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|
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my $sql_where = qq{ |
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where resource.infotype_id=infotype.infotype_id |
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}; |
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|
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# limits |
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if ($q->param('s')) { |
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$sql_from .= qq{ , res_sub_infotype }; |
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$sql_where .= qq{ |
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and res_sub_infotype.resource_id = resource.resource_id |
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and res_sub_infotype.subject_id = ? |
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}; |
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push @args, $q->param('s'); |
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} elsif ($q->param('ms')) { |
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$sql_from .= qq{ , res_sub_infotype }; |
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my $ss_sql = select_subject_id_where_mastersubject_id($q->param('ms')); |
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$sql_where .= qq{ |
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and res_sub_infotype.resource_id = resource.resource_id |
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and res_sub_infotype.subject_id in ($ss_sql) |
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}; |
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} |
| 413 |
if ($q->param('it')) { |
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if ($sql_from !~ m/res_sub_infotype/) { |
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$sql_from .= qq{ , res_sub_infotype }; |
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$sql_where .= qq{ and res_sub_infotype.resource_id = resource.resource_id }; |
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} |
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$sql_where .= qq{ and res_sub_infotype.infotype_id = ? }; |
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push @args, $q->param('it'); |
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} |
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|
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my $sth = $dbh->prepare($sql.$sql_from.$sql_where); |
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$sth->execute(@args); |
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|
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my $arr = $sth->fetchall_arrayref({}); |
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|
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# now fill-in features |
| 428 |
$sql = qq{ |
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select feature |
| 430 |
from res_feature,feature |
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where res_feature.feature_id = feature.feature_id and res_feature.resource_id = ? |
| 432 |
}; |
| 433 |
$sth = $dbh->prepare($sql); |
| 434 |
|
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foreach my $i ( 0 .. (scalar @$arr)-1 ) { |
| 436 |
$sth->execute($arr->[$i]->{'resource_id'}); |
| 437 |
$arr->[$i]->{'res_features'} = $sth->fetchall_arrayref({}); |
| 438 |
} |
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|
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return $arr; |
| 441 |
} |
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