/[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 51 - (show annotations)
Sun Jun 1 15:33:08 2003 UTC (16 years, 6 months ago) by dpavlin
File size: 4925 byte(s)
display details and back doesn't reset page to 1

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 Text::Iconv;
10 use DBI;
11
12 use lib '..';
13 use index_DBI;
14 use back2html;
15
16 # configuration options
17 # FIXME they really should go in configuration file!
18 my $TEMPLATE_PATH = '/data/webpac/template_html';
19 my $CHARSET = 'ISO-8859-2';
20 my $SWISH = '/usr/bin/swish-e';
21 my $INDEX = '/data/webpac/index/isis.index';
22 my $MAX_HITS = 500;
23 my $ON_PAGE = 10;
24
25 Text::Iconv->raise_error(0); # Conversion errors raise exceptions
26
27 my $from_utf8 = Text::Iconv->new('UTF8', $CHARSET);
28
29 sub setup {
30 my $self = shift;
31 $self->tmpl_path($TEMPLATE_PATH);
32 $self->run_modes(
33 'search' => 'show_search_form',
34 'results' => 'show_results_list',
35 # 'user' => 'show_user_detail',
36 'index' => 'show_index',
37 );
38 $self->start_mode('search');
39 $self->mode_param('rm');
40
41 $self->header_props(-charset=>$CHARSET);
42 }
43
44 sub show_search_form {
45 my $self = shift;
46
47 # Get the CGI.pm query object
48 my $q = $self->query();
49
50 my $tmpl = $self->load_tmpl('search.html');
51 my $html = $tmpl->output;
52
53 my $fif = new HTML::FillInForm;
54
55 return $fif->fill(scalarref => \$html, fobject => $q,
56 target => 'search');
57 }
58
59 sub show_results_list {
60 my $self = shift;
61
62 my $q = $self->query();
63
64 my @swish_results; # results from swish
65
66 # load template for this page
67
68 my @s_arr; # all queries are located here
69
70 my @path_arr = $q->param('path');
71 my $full = $q->param('full');
72
73 for(my $i = 1; $i <=10; $i++) {
74
75 return show_index($self, $i) if ($q->param("f".$i."_index"));
76 next if (! $q->param("f$i"));
77 next if (! $q->param("v$i"));
78
79 # re-write query from +/- to and/and not
80 my $s;
81 my $search = $q->param("v$i");
82 while ($search =~ s/\s*("[^"]+")\s*/ /) {
83 $s .= "$1 ";
84 }
85 $search =~ s/^\s+//;
86 $search =~ s/\s+$//;
87
88 foreach (split(/\s+/,$search)) {
89 if (m/^([+-])(\S+)/) {
90 $s.= ($s) ? "and " : "";
91 $s.="not " if ($1 eq "-");
92 $s.="$2* ";
93 } else {
94 $s.="$_* ";
95 }
96 }
97 $s =~ s/\*+/*/g;
98
99 push @s_arr,$q->param("f$i")."_swish=($s)";
100 }
101
102 my $tmpl = $self->load_tmpl('results.html');
103
104 # call swish
105 my $sh = SWISH->connect('Fork',
106 prog => $SWISH,
107 indexes => $INDEX,
108 properties => [qw/swishdocpath swishrank swishtitle headline html/],
109 results => sub {
110 my ($sh,$hit) = @_;
111
112 push @swish_results, {
113 nr => ($#swish_results + 2),
114 path => $hit->swishdocpath,
115 headline => $from_utf8->convert($hit->headline),
116 html => back2html($from_utf8->convert($hit->html)),
117 rank => $hit->swishrank };
118
119 },
120 #startnum => 0,
121 maxhits => $MAX_HITS
122 );
123
124 die $SWISH::errstr unless $sh;
125
126 # construct swish query
127 my $sw_q = join(" and ",@s_arr);
128 if (@path_arr) {
129 $sw_q .= "and (swishdocpath=\"";
130 $sw_q .= join("\" or swishdocpath=\"",@path_arr);
131 $sw_q .= "\")";
132 $tmpl->param('full',1); # show full records
133 }
134
135 my $hits = $sh->query($sw_q);
136
137 $tmpl->param('hits',$hits);
138 $tmpl->param('search',$sw_q);
139
140 $tmpl->param('PAGER_offset',$q->param("PAGER_offset") || 0);
141 $tmpl->param('last_PAGER_offset',$q->param("last_PAGER_offset") || 0);
142
143 # create a Pager object
144 my $pager = HTML::Pager->new(
145 # required parameters
146 query => $q,
147 get_data_callback => sub {
148 my ($offset, $rows) = @_;
149
150 my @result;
151 for (my $i=0; $i<$rows; $i++) {
152 push @result, $swish_results[$offset+$i] if $swish_results[$offset+$i];
153 }
154 return \@result;
155 },
156 rows => $hits,
157 page_size => $ON_PAGE,
158 # some optional parameters
159 persist_vars => [
160 'rm',
161 'f1', 'v1',
162 'f2', 'v2',
163 'f3', 'v3',
164 'f4', 'v4',
165 'f5', 'v5',
166 'f6', 'v6',
167 'f7', 'v7',
168 'f8', 'v8',
169 'f9', 'v9',
170 ],
171 #cell_space_color => '#000000',
172 #cell_background_color => '#ffffff',
173 #nav_background_color => '#dddddd',
174 #javascript_presubmit => 'last_minute_javascript()',
175 debug => 1,
176 template => $tmpl,
177 );
178
179 my $html = $pager->output;
180
181 return $html;
182 }
183
184 sub show_index {
185 my $self = shift;
186 my $i = shift; # field number
187
188 my $q = $self->query();
189
190 my $field = $q->param("f$i");
191 my $limit = $q->param("v$i");
192
193 my $html;
194
195 my $index = new index_DBI();
196
197 my $total = $index->check($field);
198 if (! $total) {
199 my $tmpl = $self->load_tmpl('no_index.html');
200 $tmpl->param('field',$field);
201 $html = $tmpl->output;
202 return $html;
203 }
204
205 my $tmpl = $self->load_tmpl('index_res.html');
206 $tmpl->param('field',$field);
207 $tmpl->param('limit',$limit);
208 $tmpl->param('total',$total);
209
210 # FIXME I should set offset and leave out limit from fetch!!
211 # if (! $q->param("PAGER_offset") {
212 # $q->param("Pager_offet)
213 # }
214
215 my $pager = HTML::Pager->new(
216 query => $q,
217 get_data_callback => sub {
218 my ($offset, $rows) = @_;
219
220 my @result = $index->fetch($field,'item',$limit, $offset, $rows);
221 return \@result;
222 },
223 rows => $total,
224 page_size => $ON_PAGE,
225 persist_vars => [
226 'rm',
227 "f$i", "v$i", "f".$i."_index",
228 'offset',
229 ],
230 debug => 1,
231 template => $tmpl,
232 );
233
234 return $pager->output;
235 }
236
237 1;

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