/[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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Annotation of /trunk/WebPac.pm

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Revision 12 - (hide annotations)
Wed Jan 22 22:27:19 2003 UTC (16 years, 10 months ago) by dpavlin
File size: 4343 byte(s)
added pager for lookup in index

1 dpavlin 7 package WebPac;
2    
3     use base 'CGI::Application';
4     use strict;
5    
6     use HTML::Pager;
7     use HTML::FillInForm;
8     use SWISH;
9 dpavlin 10 use Unicode::MapUTF8 qw(to_utf8 from_utf8 utf8_supported_charset);
10 dpavlin 9 use DBI;
11 dpavlin 7
12 dpavlin 11 use lib '..';
13     use index_DBI;
14    
15 dpavlin 7 # configuration options
16     # FIX: they really should go in configuration file!
17     my $TEMPLATE_PATH = '/data/webpac/template_html';
18     my $CHARSET = 'ISO-8859-2';
19 dpavlin 10 my $SWISH = '/usr/local/bin/swish-e';
20 dpavlin 7 my $INDEX = '/data/webpac/index/isis.index';
21     my $MAX_HITS = 500;
22     my $ON_PAGE = 10;
23    
24    
25     sub setup {
26     my $self = shift;
27     $self->tmpl_path($TEMPLATE_PATH);
28     $self->run_modes(
29     'search' => 'show_search_form',
30     'results' => 'show_results_list',
31 dpavlin 9 # 'user' => 'show_user_detail',
32     'index' => 'show_index',
33 dpavlin 7 );
34     $self->start_mode('search');
35     $self->mode_param('rm');
36    
37     $self->header_props(-charset=>$CHARSET);
38     }
39    
40     sub show_search_form {
41     my $self = shift;
42    
43     # Get the CGI.pm query object
44     my $q = $self->query();
45    
46     my $tmpl = $self->load_tmpl('search.html');
47     my $html = $tmpl->output;
48    
49     my $fif = new HTML::FillInForm;
50    
51     return $fif->fill(scalarref => \$html, fobject => $q,
52     target => 'search');
53     }
54    
55     sub show_results_list {
56     my $self = shift;
57    
58     my $q = $self->query();
59    
60     my @swish_results; # results from swish
61    
62     # load template for this page
63    
64     my @s_arr; # all queries are located here
65    
66     for(my $i = 1; $i <=10; $i++) {
67    
68 dpavlin 9 return show_index($self, $i) if ($q->param("f".$i."_index"));
69     next if (! $q->param("f$i"));
70 dpavlin 7 next if (! $q->param("v$i"));
71    
72     # re-write query from +/- to and/and not
73     my $s;
74     my $search = $q->param("v$i");
75     while ($search =~ s/\s*("[^"]+")\s*/ /) {
76     $s .= "$1 ";
77     }
78     $search =~ s/^\s+//;
79     $search =~ s/\s+$//;
80    
81     foreach (split(/\s+/,$search)) {
82     if (m/^([+-])(\S+)/) {
83     $s.= ($s) ? "and " : "";
84     $s.="not " if ($1 eq "-");
85     $s.="$2* ";
86     } else {
87     $s.="$_* ";
88     }
89     }
90    
91 dpavlin 9 push @s_arr,$q->param("f$i")."_swish=($s)";
92 dpavlin 7 }
93    
94 dpavlin 9 my $tmpl = $self->load_tmpl('results.html');
95    
96 dpavlin 7 # call swish
97     my $sh = SWISH->connect('Fork',
98     prog => $SWISH,
99     indexes => $INDEX,
100     #properties => [qw/god br nr/],
101     results => sub {
102     my ($sh,$hit) = @_;
103    
104     push @swish_results, {
105     nr => ($#swish_results + 2),
106     path => $hit->swishdocpath,
107 dpavlin 10 title => to_utf8({ -string => $hit->swishtitle, -charset => $CHARSET }),
108 dpavlin 7 rank => $hit->swishrank };
109    
110     # my @fields = $hit->field_names;
111     # print "Field '$_' = '", $hit->$_, "'<br>\n" for sort @fields;
112     },
113     #startnum => 0,
114     maxhits => $MAX_HITS,
115     );
116    
117     die $SWISH::errstr unless $sh;
118    
119     my $hits = $sh->query(join(" and ",@s_arr)) || 0; # FIX: and/or
120    
121     $tmpl->param('hits',$hits);
122     $tmpl->param('search',join(" and ",@s_arr));
123    
124     # create a Pager object
125     my $pager = HTML::Pager->new(
126     # required parameters
127     query => $q,
128     get_data_callback => sub {
129     my ($offset, $rows) = @_;
130    
131     my @result;
132     for (my $i=0; $i<$rows; $i++) {
133     push @result, $swish_results[$offset+$i] if $swish_results[$offset+$i];
134     }
135     return \@result;
136     },
137     rows => $hits,
138     page_size => $ON_PAGE,
139     # some optional parameters
140     persist_vars => [
141     'rm',
142     'f1', 'v1',
143     'f2', 'v2',
144     'f3', 'v3',
145     'f4', 'v4',
146     'f5', 'v5',
147     'f6', 'v6',
148     'f7', 'v7',
149     'f8', 'v8',
150     'f9', 'v9',
151     ],
152     #cell_space_color => '#000000',
153     #cell_background_color => '#ffffff',
154     #nav_background_color => '#dddddd',
155     #javascript_presubmit => 'last_minute_javascript()',
156     debug => 1,
157     template => $tmpl,
158     );
159    
160     my $html = $pager->output;
161    
162     return $html;
163     }
164    
165 dpavlin 9 sub show_index {
166     my $self = shift;
167     my $i = shift; # field number
168    
169     my $q = $self->query();
170    
171 dpavlin 11 my $field = $q->param("f$i");
172     my $limit = $q->param("v$i");
173    
174 dpavlin 9 my $html;
175    
176 dpavlin 11 my $index = new index_DBI();
177 dpavlin 9
178 dpavlin 12 my $total = $index->check($field);
179     if (! $total) {
180 dpavlin 11 my $tmpl = $self->load_tmpl('no_index.html');
181     $tmpl->param('field',$field);
182     $html = $tmpl->output;
183     return $html;
184     }
185 dpavlin 9
186 dpavlin 12 my $tmpl = $self->load_tmpl('index_res.html');
187     $tmpl->param('field',$field);
188     $tmpl->param('limit',$limit);
189     $tmpl->param('total',$total);
190 dpavlin 11
191 dpavlin 12 my $pager = HTML::Pager->new(
192     query => $q,
193     get_data_callback => sub {
194     my ($offset, $rows) = @_;
195 dpavlin 11
196 dpavlin 12 my @result = $index->fetch($field,'item',$limit, $offset, $rows);
197     return \@result;
198     },
199     rows => $total,
200     page_size => $ON_PAGE,
201     persist_vars => [
202     'rm',
203     "f$i", "v$i", "f".$i."_index",
204     'offset',
205     ],
206     debug => 1,
207     template => $tmpl,
208     );
209 dpavlin 11
210 dpavlin 12 return $pager->output;
211 dpavlin 9 }
212    
213 dpavlin 7 1;

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