/[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 53 - (show annotations)
Sun Jun 1 18:49:49 2003 UTC (16 years, 5 months ago) by dpavlin
File size: 5306 byte(s)
moved configuration (database part) to global.conf, added
and, or and not operators

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 use Config::IniFiles;
12
13 use lib '..';
14 use index_DBI;
15 use back2html;
16
17 # configuration options
18 # FIXME they really should go in configuration file!
19 my $TEMPLATE_PATH = '/data/webpac/template_html';
20 my $CHARSET = 'ISO-8859-2';
21 my $SWISH = '/usr/bin/swish-e';
22 my $INDEX = '/data/webpac/index/isis.index';
23 my $MAX_HITS = 500;
24 my $ON_PAGE = 10;
25
26 Text::Iconv->raise_error(0); # Conversion errors raise exceptions
27
28 my $from_utf8 = Text::Iconv->new('UTF8', $CHARSET);
29
30 # read global.conf configuration
31 my $cfg_global = new Config::IniFiles( -file => '../global.conf' ) || die "can't open 'global.conf'";
32
33
34 sub setup {
35 my $self = shift;
36 $self->tmpl_path($TEMPLATE_PATH);
37 $self->run_modes(
38 'search' => 'show_search_form',
39 'results' => 'show_results_list',
40 # 'user' => 'show_user_detail',
41 'index' => 'show_index',
42 );
43 $self->start_mode('search');
44 $self->mode_param('rm');
45
46 $self->header_props(-charset=>$CHARSET);
47 }
48
49 sub show_search_form {
50 my $self = shift;
51
52 # Get the CGI.pm query object
53 my $q = $self->query();
54
55 my $tmpl = $self->load_tmpl('search.html');
56 my $html = $tmpl->output;
57
58 my $fif = new HTML::FillInForm;
59
60 return $fif->fill(scalarref => \$html, fobject => $q,
61 target => 'search');
62 }
63
64 sub show_results_list {
65 my $self = shift;
66
67 my $q = $self->query();
68
69 my @swish_results; # results from swish
70
71 # load template for this page
72
73 my @s_arr; # all queries are located here
74
75 my @path_arr = $q->param('path');
76 my $full = $q->param('full');
77
78 for(my $i = 1; $i <=10; $i++) {
79
80 return show_index($self, $i) if ($q->param("f".$i."_index"));
81 next if (! $q->param("f$i"));
82 next if (! $q->param("v$i"));
83
84 # re-write query from +/- to and/and not
85 my $s;
86 my $search = $q->param("v$i");
87 while ($search =~ s/\s*("[^"]+")\s*/ /) {
88 $s .= "$1 ";
89 }
90 $search =~ s/^\s+//;
91 $search =~ s/\s+$//;
92
93 foreach (split(/\s+/,$search)) {
94 if (m/^([+-])(\S+)/) {
95 $s.= ($s) ? "and " : "";
96 $s.="not " if ($1 eq "-");
97 $s.="$2* ";
98 } elsif (m/(and|or|not)/i) {
99 $s.="$_ ";
100 } else {
101 $s.="$_* ";
102 }
103 }
104 $s =~ s/\*+/*/g;
105
106 push @s_arr,$q->param("f$i")."_swish=($s)";
107 }
108
109 my $tmpl = $self->load_tmpl('results.html');
110
111 # call swish
112 my $sh = SWISH->connect('Fork',
113 prog => $SWISH,
114 indexes => $INDEX,
115 properties => [qw/swishdocpath swishrank swishtitle headline html/],
116 results => sub {
117 my ($sh,$hit) = @_;
118
119 push @swish_results, {
120 nr => ($#swish_results + 2),
121 path => $hit->swishdocpath,
122 headline => $from_utf8->convert($hit->headline),
123 html => back2html($from_utf8->convert($hit->html)),
124 rank => $hit->swishrank };
125
126 },
127 #startnum => 0,
128 maxhits => $MAX_HITS
129 );
130
131 die $SWISH::errstr unless $sh;
132
133 # construct swish query
134 my $sw_q = join(" and ",@s_arr);
135 if (@path_arr) {
136 $sw_q .= "and (swishdocpath=\"";
137 $sw_q .= join("\" or swishdocpath=\"",@path_arr);
138 $sw_q .= "\")";
139 $tmpl->param('full',1); # show full records
140 }
141
142 my $hits = $sh->query($sw_q);
143
144 $tmpl->param('hits',$hits);
145 $tmpl->param('search',$sw_q);
146
147 $tmpl->param('PAGER_offset',$q->param("PAGER_offset") || 0);
148 $tmpl->param('last_PAGER_offset',$q->param("last_PAGER_offset") || 0);
149
150 # create a Pager object
151 my $pager = HTML::Pager->new(
152 # required parameters
153 query => $q,
154 get_data_callback => sub {
155 my ($offset, $rows) = @_;
156
157 my @result;
158 for (my $i=0; $i<$rows; $i++) {
159 push @result, $swish_results[$offset+$i] if $swish_results[$offset+$i];
160 }
161 return \@result;
162 },
163 rows => $hits,
164 page_size => $ON_PAGE,
165 # some optional parameters
166 persist_vars => [
167 'rm',
168 'f1', 'v1',
169 'f2', 'v2',
170 'f3', 'v3',
171 'f4', 'v4',
172 'f5', 'v5',
173 'f6', 'v6',
174 'f7', 'v7',
175 'f8', 'v8',
176 'f9', 'v9',
177 ],
178 #cell_space_color => '#000000',
179 #cell_background_color => '#ffffff',
180 #nav_background_color => '#dddddd',
181 #javascript_presubmit => 'last_minute_javascript()',
182 debug => 1,
183 template => $tmpl,
184 );
185
186 my $html = $pager->output;
187
188 return $html;
189 }
190
191 sub show_index {
192 my $self = shift;
193 my $i = shift; # field number
194
195 my $q = $self->query();
196
197 my $field = $q->param("f$i");
198 my $limit = $q->param("v$i");
199
200 my $html;
201
202 my $index = new index_DBI(
203 $cfg_global->val('global', 'dbi_dbd'),
204 $cfg_global->val('global', 'dbi_dsn'),
205 $cfg_global->val('global', 'dbi_user'),
206 $cfg_global->val('global', 'dbi_passwd') || ''
207 );
208
209 my $total = $index->check($field);
210 if (! $total) {
211 my $tmpl = $self->load_tmpl('no_index.html');
212 $tmpl->param('field',$field);
213 $html = $tmpl->output;
214 return $html;
215 }
216
217 my $tmpl = $self->load_tmpl('index_res.html');
218 $tmpl->param('field',$field);
219 $tmpl->param('limit',$limit);
220 $tmpl->param('total',$total);
221
222 # FIXME I should set offset and leave out limit from fetch!!
223 # if (! $q->param("PAGER_offset") {
224 # $q->param("Pager_offet)
225 # }
226
227 my $pager = HTML::Pager->new(
228 query => $q,
229 get_data_callback => sub {
230 my ($offset, $rows) = @_;
231
232 my @result = $index->fetch($field,'item',$limit, $offset, $rows);
233 return \@result;
234 },
235 rows => $total,
236 page_size => $ON_PAGE,
237 persist_vars => [
238 'rm',
239 "f$i", "v$i", "f".$i."_index",
240 'offset',
241 ],
242 debug => 1,
243 template => $tmpl,
244 );
245
246 return $pager->output;
247 }
248
249 1;

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