/[webpac]/trunk/WebPac.pm
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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Contents of /trunk/WebPac.pm

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Revision 10 - (show annotations)
Thu Jan 16 17:35:54 2003 UTC (16 years, 11 months ago) by dpavlin
File size: 3596 byte(s)
bunch of changes: make design more modular, implement index (partial
implementation) and other small and big changes

1 package WebPac;
2
3 use base 'CGI::Application';
4 use strict;
5
6 use HTML::Pager;
7 use HTML::FillInForm;
8 use SWISH;
9 use Unicode::MapUTF8 qw(to_utf8 from_utf8 utf8_supported_charset);
10 use DBI;
11
12 # configuration options
13 # FIX: they really should go in configuration file!
14 my $TEMPLATE_PATH = '/data/webpac/template_html';
15 my $CHARSET = 'ISO-8859-2';
16 my $SWISH = '/usr/local/bin/swish-e';
17 my $INDEX = '/data/webpac/index/isis.index';
18 my $MAX_HITS = 500;
19 my $ON_PAGE = 10;
20
21
22 sub setup {
23 my $self = shift;
24 $self->tmpl_path($TEMPLATE_PATH);
25 $self->run_modes(
26 'search' => 'show_search_form',
27 'results' => 'show_results_list',
28 # 'user' => 'show_user_detail',
29 'index' => 'show_index',
30 );
31 $self->start_mode('search');
32 $self->mode_param('rm');
33
34 $self->header_props(-charset=>$CHARSET);
35 }
36
37 sub show_search_form {
38 my $self = shift;
39
40 # Get the CGI.pm query object
41 my $q = $self->query();
42
43 my $tmpl = $self->load_tmpl('search.html');
44 my $html = $tmpl->output;
45
46 my $fif = new HTML::FillInForm;
47
48 return $fif->fill(scalarref => \$html, fobject => $q,
49 target => 'search');
50 }
51
52 sub show_results_list {
53 my $self = shift;
54
55 my $q = $self->query();
56
57 my @swish_results; # results from swish
58
59 # load template for this page
60
61 my @s_arr; # all queries are located here
62
63 for(my $i = 1; $i <=10; $i++) {
64
65 return show_index($self, $i) if ($q->param("f".$i."_index"));
66 next if (! $q->param("f$i"));
67 next if (! $q->param("v$i"));
68
69 # re-write query from +/- to and/and not
70 my $s;
71 my $search = $q->param("v$i");
72 while ($search =~ s/\s*("[^"]+")\s*/ /) {
73 $s .= "$1 ";
74 }
75 $search =~ s/^\s+//;
76 $search =~ s/\s+$//;
77
78 foreach (split(/\s+/,$search)) {
79 if (m/^([+-])(\S+)/) {
80 $s.= ($s) ? "and " : "";
81 $s.="not " if ($1 eq "-");
82 $s.="$2* ";
83 } else {
84 $s.="$_* ";
85 }
86 }
87
88 push @s_arr,$q->param("f$i")."_swish=($s)";
89 }
90
91 my $tmpl = $self->load_tmpl('results.html');
92
93 # call swish
94 my $sh = SWISH->connect('Fork',
95 prog => $SWISH,
96 indexes => $INDEX,
97 #properties => [qw/god br nr/],
98 results => sub {
99 my ($sh,$hit) = @_;
100
101 push @swish_results, {
102 nr => ($#swish_results + 2),
103 path => $hit->swishdocpath,
104 title => to_utf8({ -string => $hit->swishtitle, -charset => $CHARSET }),
105 rank => $hit->swishrank };
106
107 # my @fields = $hit->field_names;
108 # print "Field '$_' = '", $hit->$_, "'<br>\n" for sort @fields;
109 },
110 #startnum => 0,
111 maxhits => $MAX_HITS,
112 );
113
114 die $SWISH::errstr unless $sh;
115
116 my $hits = $sh->query(join(" and ",@s_arr)) || 0; # FIX: and/or
117
118 $tmpl->param('hits',$hits);
119 $tmpl->param('search',join(" and ",@s_arr));
120
121 # create a Pager object
122 my $pager = HTML::Pager->new(
123 # required parameters
124 query => $q,
125 get_data_callback => sub {
126 my ($offset, $rows) = @_;
127
128 my @result;
129 for (my $i=0; $i<$rows; $i++) {
130 push @result, $swish_results[$offset+$i] if $swish_results[$offset+$i];
131 }
132 return \@result;
133 },
134 rows => $hits,
135 page_size => $ON_PAGE,
136 # some optional parameters
137 persist_vars => [
138 'rm',
139 'f1', 'v1',
140 'f2', 'v2',
141 'f3', 'v3',
142 'f4', 'v4',
143 'f5', 'v5',
144 'f6', 'v6',
145 'f7', 'v7',
146 'f8', 'v8',
147 'f9', 'v9',
148 ],
149 #cell_space_color => '#000000',
150 #cell_background_color => '#ffffff',
151 #nav_background_color => '#dddddd',
152 #javascript_presubmit => 'last_minute_javascript()',
153 debug => 1,
154 template => $tmpl,
155 );
156
157 my $html = $pager->output;
158
159 return $html;
160 }
161
162 sub show_index {
163 my $self = shift;
164 my $i = shift; # field number
165
166 my $q = $self->query();
167
168 my $html;
169
170 $html .= "show index of ".$q->param("f$i")." for ".$q->param("v$i");
171
172
173 return $html;
174 }
175
176 1;

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