/[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 73 - (show annotations)
Sat Jul 5 22:31:46 2003 UTC (16 years, 4 months ago) by dpavlin
File size: 5642 byte(s)
- support multi-value fields (e.g. for checkboxes)
- remove accented characters before feeding swish

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 use Text::Unaccent;
13
14 use lib '..';
15 use index_DBI;
16 use back2html;
17
18 # configuration options
19 # FIXME they really should go in configuration file!
20 my $TEMPLATE_PATH = '/data/webpac/template_html';
21 my $CHARSET = 'ISO-8859-2';
22 my $SWISH = '/usr/bin/swish-e';
23 my $INDEX = '/data/webpac/index/isis.index';
24 my $MAX_HITS = 0;
25 my $ON_PAGE = 10;
26
27 Text::Iconv->raise_error(0); # Conversion errors raise exceptions
28
29 my $from_utf8 = Text::Iconv->new('UTF8', $CHARSET);
30
31 # read global.conf configuration
32 my $cfg_global = new Config::IniFiles( -file => '../global.conf' ) || die "can't open 'global.conf'";
33
34
35 sub setup {
36 my $self = shift;
37 $self->tmpl_path($TEMPLATE_PATH);
38 $self->run_modes(
39 'search' => 'show_search_form',
40 'results' => 'show_results_list',
41 # 'user' => 'show_user_detail',
42 'index' => 'show_index',
43 );
44 $self->start_mode('search');
45 $self->mode_param('rm');
46
47 $self->header_props(-charset=>$CHARSET);
48 }
49
50 sub show_search_form {
51 my $self = shift;
52
53 # Get the CGI.pm query object
54 my $q = $self->query();
55
56 my $tmpl = $self->load_tmpl('search.html');
57 my $html = $tmpl->output;
58
59 my $fif = new HTML::FillInForm;
60
61 return $fif->fill(scalarref => \$html, fobject => $q,
62 target => 'search');
63 }
64
65 sub show_results_list {
66 my $self = shift;
67
68 my $q = $self->query();
69
70 my @swish_results; # results from swish
71
72 # load template for this page
73
74 my @s_arr; # all queries are located here
75
76 my @path_arr = $q->param('path');
77 my $full = $q->param('full');
78
79 for(my $i = 1; $i <=30; $i++) {
80
81 return show_index($self, $i) if ($q->param("f".$i."_index"));
82 next if (! $q->param("v$i"));
83 next if (! $q->param("f$i"));
84
85 # re-write query from +/- to and/and not
86 my @param_vals = $q->param("v$i");
87 my @swish_q;
88 while (my $search = shift @param_vals) {
89 my $s;
90 # remove accents
91 $search = unac_string($CHARSET,$search);
92 while ($search =~ s/\s*("[^"]+")\s*/ /) {
93 $s .= "$1 ";
94 }
95 $search =~ s/^\s+//;
96 $search =~ s/\s+$//;
97
98 foreach (split(/\s+/,$search)) {
99 if (m/^([+-])(\S+)/) {
100 $s.= ($s) ? "and " : "";
101 $s.="not " if ($1 eq "-");
102 $s.="$2* ";
103 } elsif (m/(and|or|not)/i) {
104 $s.="$_ ";
105 } else {
106 $s.="$_* ";
107 }
108 }
109 $s =~ s/\*+/*/g;
110 push @swish_q,$s;
111 }
112 # FIXME default operator for multi-value fields is or. There is
113 # no way to change it, except here for now. Is there need?
114 push @s_arr, $q->param("f$i")."_swish=(".join(" or ",@swish_q).")";
115 }
116
117 my $tmpl = $self->load_tmpl('results.html');
118
119 # call swish
120 my $sh = SWISH->connect('Fork',
121 prog => $SWISH,
122 indexes => $INDEX,
123 properties => [qw/swishdocpath swishrank swishtitle headline html/],
124 results => sub {
125 my ($sh,$hit) = @_;
126
127 push @swish_results, {
128 nr => ($#swish_results + 2),
129 path => $hit->swishdocpath,
130 headline => $from_utf8->convert($hit->headline),
131 html => back2html($from_utf8->convert($hit->html)),
132 rank => $hit->swishrank };
133
134 },
135 #startnum => 0,
136 maxhits => $MAX_HITS
137 );
138
139 die $SWISH::errstr unless $sh;
140 # construct swish query
141 my $sw_q = join(" and ",@s_arr);
142 if (@path_arr) {
143 $sw_q .= "and (swishdocpath=\"";
144 $sw_q .= join("\" or swishdocpath=\"",@path_arr);
145 $sw_q .= "\")";
146 $tmpl->param('full',1); # show full records
147 }
148
149 my $hits = $sh->query($sw_q);
150
151 $tmpl->param('hits',$hits);
152 $tmpl->param('search',$sw_q);
153
154 $tmpl->param('PAGER_offset',$q->param("PAGER_offset") || 1);
155 $tmpl->param('last_PAGER_offset',$q->param("last_PAGER_offset") || 1);
156
157 # create a Pager object
158 my $pager = HTML::Pager->new(
159 # required parameters
160 query => $q,
161 get_data_callback => sub {
162 my ($offset, $rows) = @_;
163
164 my @result;
165 for (my $i=0; $i<$rows; $i++) {
166 push @result, $swish_results[$offset+$i] if $swish_results[$offset+$i];
167 }
168 return \@result;
169 },
170 rows => $hits,
171 page_size => $ON_PAGE,
172 # some optional parameters
173 persist_vars => [
174 'rm',
175 'f1', 'v1',
176 'f2', 'v2',
177 'f3', 'v3',
178 'f4', 'v4',
179 'f5', 'v5',
180 'f6', 'v6',
181 'f7', 'v7',
182 'f8', 'v8',
183 'f9', 'v9',
184 ],
185 #cell_space_color => '#000000',
186 #cell_background_color => '#ffffff',
187 #nav_background_color => '#dddddd',
188 #javascript_presubmit => 'last_minute_javascript()',
189 debug => 1,
190 template => $tmpl,
191 );
192
193 my $html = $pager->output;
194
195 return $html;
196 }
197
198 sub show_index {
199 my $self = shift;
200 my $i = shift; # field number
201
202 my $q = $self->query();
203
204 my $field = $q->param("f$i");
205 my $limit = $q->param("v$i");
206
207 my $html;
208
209 my $index = new index_DBI(
210 $cfg_global->val('global', 'dbi_dbd'),
211 $cfg_global->val('global', 'dbi_dsn'),
212 $cfg_global->val('global', 'dbi_user'),
213 $cfg_global->val('global', 'dbi_passwd') || ''
214 );
215
216 my $total = $index->check($field);
217 if (! $total) {
218 my $tmpl = $self->load_tmpl('no_index.html');
219 $tmpl->param('field',$field);
220 $html = $tmpl->output;
221 return $html;
222 }
223
224 my $tmpl = $self->load_tmpl('index_res.html');
225 $tmpl->param('field',$field);
226 $tmpl->param('limit',$limit);
227 $tmpl->param('total',$total);
228
229 # FIXME I should set offset and leave out limit from fetch!!
230 # if (! $q->param("PAGER_offset") {
231 # $q->param("Pager_offet)
232 # }
233
234 my $pager = HTML::Pager->new(
235 query => $q,
236 get_data_callback => sub {
237 my ($offset, $rows) = @_;
238
239 my @result = $index->fetch($field,'item',$limit, $offset, $rows);
240 return \@result;
241 },
242 rows => $total,
243 page_size => $ON_PAGE,
244 persist_vars => [
245 'rm',
246 "f$i", "v$i", "f".$i."_index",
247 'offset',
248 ],
249 debug => 1,
250 template => $tmpl,
251 );
252
253 return $pager->output;
254 }
255
256 1;

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