/[webpac]/trunk/WebPac.pm
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Annotation of /trunk/WebPac.pm

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Revision 120 - (hide annotations)
Tue Sep 2 13:24:33 2003 UTC (16 years ago) by dpavlin
File size: 6309 byte(s)
added minimum numbers of characters for wildcard * to kick in for swish

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 14 use Text::Iconv;
10 dpavlin 9 use DBI;
11 dpavlin 53 use Config::IniFiles;
12 dpavlin 73 use Text::Unaccent;
13 dpavlin 7
14 dpavlin 11 use lib '..';
15     use index_DBI;
16 dpavlin 13 use back2html;
17 dpavlin 11
18 dpavlin 7
19 dpavlin 76 # read global.conf configuration
20     my $cfg_global = new Config::IniFiles( -file => '../global.conf' ) || die "can't open 'global.conf'";
21    
22     # configuration options from global.conf
23     my $TEMPLATE_PATH = $cfg_global->val('webpac', 'template_html') || die "need template_html in global.conf, section webpac";
24     my $CHARSET = $cfg_global->val('webpac', 'charset') || 'ISO-8859-1';
25     my $SWISH = $cfg_global->val('webpac', 'swish') || '/usr/bin/swish-e';
26     my $INDEX = $cfg_global->val('webpac', 'index') || die "need index in global.conf, section webpac";
27     my $MAX_HITS = $cfg_global->val('webpac', 'max_hits') || 0;
28     my $ON_PAGE =$cfg_global->val('webpac', 'on_page') || 10;
29 dpavlin 120 my $MIN_WILDCARD =$cfg_global->val('webpac', 'min_wildcard') || 1;
30 dpavlin 76
31    
32 dpavlin 30 Text::Iconv->raise_error(0); # Conversion errors raise exceptions
33 dpavlin 7
34 dpavlin 14 my $from_utf8 = Text::Iconv->new('UTF8', $CHARSET);
35    
36 dpavlin 53
37 dpavlin 7 sub setup {
38     my $self = shift;
39     $self->tmpl_path($TEMPLATE_PATH);
40     $self->run_modes(
41     'search' => 'show_search_form',
42     'results' => 'show_results_list',
43 dpavlin 9 # 'user' => 'show_user_detail',
44     'index' => 'show_index',
45 dpavlin 7 );
46     $self->start_mode('search');
47     $self->mode_param('rm');
48    
49     $self->header_props(-charset=>$CHARSET);
50     }
51    
52     sub show_search_form {
53     my $self = shift;
54    
55     # Get the CGI.pm query object
56     my $q = $self->query();
57    
58     my $tmpl = $self->load_tmpl('search.html');
59     my $html = $tmpl->output;
60    
61     my $fif = new HTML::FillInForm;
62    
63     return $fif->fill(scalarref => \$html, fobject => $q,
64     target => 'search');
65     }
66    
67     sub show_results_list {
68     my $self = shift;
69    
70     my $q = $self->query();
71    
72     my @swish_results; # results from swish
73    
74     # load template for this page
75    
76     my @s_arr; # all queries are located here
77    
78 dpavlin 47 my @path_arr = $q->param('path');
79     my $full = $q->param('full');
80    
81 dpavlin 112 my @persist_vars = ( 'rm' );
82    
83 dpavlin 71 for(my $i = 1; $i <=30; $i++) {
84 dpavlin 7
85 dpavlin 9 return show_index($self, $i) if ($q->param("f".$i."_index"));
86 dpavlin 112
87 dpavlin 71 next if (! $q->param("v$i"));
88 dpavlin 9 next if (! $q->param("f$i"));
89 dpavlin 7
90 dpavlin 112 push @persist_vars, "f$i";
91     push @persist_vars, "v$i";
92    
93 dpavlin 7 # re-write query from +/- to and/and not
94 dpavlin 73 my @param_vals = $q->param("v$i");
95     my @swish_q;
96     while (my $search = shift @param_vals) {
97     my $s;
98     # remove accents
99     $search = unac_string($CHARSET,$search);
100     while ($search =~ s/\s*("[^"]+")\s*/ /) {
101     $s .= "$1 ";
102     }
103     $search =~ s/^\s+//;
104     $search =~ s/\s+$//;
105 dpavlin 7
106 dpavlin 73 foreach (split(/\s+/,$search)) {
107     if (m/^([+-])(\S+)/) {
108     $s.= ($s) ? "and " : "";
109     $s.="not " if ($1 eq "-");
110     $s.="$2* ";
111     } elsif (m/(and|or|not)/i) {
112     $s.="$_ ";
113 dpavlin 120 # don't add * to words with less than x chars
114     } elsif (length($_) <= $MIN_WILDCARD) {
115     $s.="$_ ";
116 dpavlin 73 } else {
117     $s.="$_* ";
118     }
119 dpavlin 7 }
120 dpavlin 73 $s =~ s/\*+/*/g;
121     push @swish_q,$s;
122 dpavlin 7 }
123 dpavlin 73 # FIXME default operator for multi-value fields is or. There is
124     # no way to change it, except here for now. Is there need?
125     push @s_arr, $q->param("f$i")."_swish=(".join(" or ",@swish_q).")";
126 dpavlin 7 }
127    
128 dpavlin 9 my $tmpl = $self->load_tmpl('results.html');
129    
130 dpavlin 80 sub esc_html {
131     my $html = shift;
132     $html =~ s/</&lt;/g;
133     $html =~ s/>/&gt;/g;
134     return $html;
135     }
136    
137 dpavlin 7 # call swish
138     my $sh = SWISH->connect('Fork',
139     prog => $SWISH,
140     indexes => $INDEX,
141 dpavlin 13 properties => [qw/swishdocpath swishrank swishtitle headline html/],
142 dpavlin 7 results => sub {
143     my ($sh,$hit) = @_;
144    
145     push @swish_results, {
146     nr => ($#swish_results + 2),
147     path => $hit->swishdocpath,
148 dpavlin 80 headline => esc_html($from_utf8->convert($hit->headline)),
149 dpavlin 41 html => back2html($from_utf8->convert($hit->html)),
150 dpavlin 7 rank => $hit->swishrank };
151    
152     },
153     #startnum => 0,
154 dpavlin 47 maxhits => $MAX_HITS
155 dpavlin 7 );
156    
157     die $SWISH::errstr unless $sh;
158 dpavlin 47 # construct swish query
159     my $sw_q = join(" and ",@s_arr);
160 dpavlin 111 if (@path_arr && $q->param('show_full')) {
161 dpavlin 47 $sw_q .= "and (swishdocpath=\"";
162     $sw_q .= join("\" or swishdocpath=\"",@path_arr);
163     $sw_q .= "\")";
164     $tmpl->param('full',1); # show full records
165     }
166 dpavlin 7
167 dpavlin 47 my $hits = $sh->query($sw_q);
168    
169 dpavlin 7 $tmpl->param('hits',$hits);
170 dpavlin 47 $tmpl->param('search',$sw_q);
171 dpavlin 7
172 dpavlin 76 $tmpl->param('PAGER_offset',$q->param("PAGER_offset") || 0);
173     $tmpl->param('last_PAGER_offset',$q->param("last_PAGER_offset") || 0);
174 dpavlin 51
175 dpavlin 7 # create a Pager object
176     my $pager = HTML::Pager->new(
177     # required parameters
178     query => $q,
179     get_data_callback => sub {
180     my ($offset, $rows) = @_;
181    
182     my @result;
183     for (my $i=0; $i<$rows; $i++) {
184 dpavlin 114 my $r = $swish_results[$offset+$i];
185     if ($r && $q->param('show_full')) {
186     push @result, $r;
187     } elsif ($r) {
188     # if not full output, skip html
189     delete $r->{html};
190     push @result, $r;
191     }
192 dpavlin 7 }
193     return \@result;
194     },
195     rows => $hits,
196     page_size => $ON_PAGE,
197     # some optional parameters
198 dpavlin 112 persist_vars => [ @persist_vars ],
199 dpavlin 7 #cell_space_color => '#000000',
200     #cell_background_color => '#ffffff',
201     #nav_background_color => '#dddddd',
202     #javascript_presubmit => 'last_minute_javascript()',
203     debug => 1,
204     template => $tmpl,
205     );
206    
207     my $html = $pager->output;
208    
209     return $html;
210     }
211    
212 dpavlin 9 sub show_index {
213     my $self = shift;
214     my $i = shift; # field number
215    
216     my $q = $self->query();
217    
218 dpavlin 11 my $field = $q->param("f$i");
219     my $limit = $q->param("v$i");
220    
221 dpavlin 9 my $html;
222    
223 dpavlin 53 my $index = new index_DBI(
224     $cfg_global->val('global', 'dbi_dbd'),
225     $cfg_global->val('global', 'dbi_dsn'),
226     $cfg_global->val('global', 'dbi_user'),
227     $cfg_global->val('global', 'dbi_passwd') || ''
228     );
229 dpavlin 9
230 dpavlin 12 my $total = $index->check($field);
231     if (! $total) {
232 dpavlin 11 my $tmpl = $self->load_tmpl('no_index.html');
233     $tmpl->param('field',$field);
234     $html = $tmpl->output;
235     return $html;
236     }
237 dpavlin 9
238 dpavlin 12 my $tmpl = $self->load_tmpl('index_res.html');
239     $tmpl->param('field',$field);
240     $tmpl->param('limit',$limit);
241     $tmpl->param('total',$total);
242 dpavlin 11
243 dpavlin 51 # FIXME I should set offset and leave out limit from fetch!!
244 dpavlin 16 # if (! $q->param("PAGER_offset") {
245     # $q->param("Pager_offet)
246     # }
247    
248 dpavlin 12 my $pager = HTML::Pager->new(
249     query => $q,
250     get_data_callback => sub {
251     my ($offset, $rows) = @_;
252 dpavlin 11
253 dpavlin 12 my @result = $index->fetch($field,'item',$limit, $offset, $rows);
254     return \@result;
255     },
256     rows => $total,
257     page_size => $ON_PAGE,
258     persist_vars => [
259     'rm',
260     "f$i", "v$i", "f".$i."_index",
261     'offset',
262     ],
263     debug => 1,
264     template => $tmpl,
265     );
266 dpavlin 11
267 dpavlin 12 return $pager->output;
268 dpavlin 9 }
269    
270 dpavlin 7 1;

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