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

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Revision 150 - (hide annotations)
Sun Nov 16 22:39:06 2003 UTC (16 years ago) by dpavlin
File size: 7314 byte(s)
support for "f" and "v" fields without number on which wildcards don't apply

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 dpavlin 128 use index_DBI_cache;
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 147 my $TEMPLATE =$cfg_global->val('webpac', 'template');
31 dpavlin 76
32    
33 dpavlin 30 Text::Iconv->raise_error(0); # Conversion errors raise exceptions
34 dpavlin 7
35 dpavlin 14 my $from_utf8 = Text::Iconv->new('UTF8', $CHARSET);
36    
37 dpavlin 53
38 dpavlin 7 sub setup {
39     my $self = shift;
40     $self->tmpl_path($TEMPLATE_PATH);
41     $self->run_modes(
42     'search' => 'show_search_form',
43     'results' => 'show_results_list',
44 dpavlin 9 # 'user' => 'show_user_detail',
45     'index' => 'show_index',
46 dpavlin 7 );
47     $self->start_mode('search');
48     $self->mode_param('rm');
49    
50     $self->header_props(-charset=>$CHARSET);
51     }
52    
53 dpavlin 147 sub in_template {
54     my $html = shift || "This page is left unintentionally blank";
55     return $html if (! defined($TEMPLATE));
56     if (open(T, $TEMPLATE)) {
57     my $template_html = join("\n",<T>);
58     close(T);
59     $template_html =~ s/##webpac##/$html/gsi;
60     return $template_html;
61     } else {
62     return "Can't read template '$TEMPLATE'";
63     }
64     }
65    
66 dpavlin 7 sub show_search_form {
67     my $self = shift;
68    
69     # Get the CGI.pm query object
70     my $q = $self->query();
71    
72     my $tmpl = $self->load_tmpl('search.html');
73     my $html = $tmpl->output;
74    
75     my $fif = new HTML::FillInForm;
76    
77 dpavlin 147 return in_template($fif->fill(scalarref => \$html, fobject => $q,
78     target => 'search'));
79 dpavlin 7 }
80    
81     sub show_results_list {
82     my $self = shift;
83    
84     my $q = $self->query();
85    
86     my @swish_results; # results from swish
87    
88     # load template for this page
89    
90     my @s_arr; # all queries are located here
91    
92 dpavlin 47 my @path_arr = $q->param('path');
93     my $full = $q->param('full');
94    
95 dpavlin 112 my @persist_vars = ( 'rm' );
96 dpavlin 126 my @url_params = ( 'rm=results', 'show_full=1', 'last_PAGER_offset='.$q->param('PAGER_offset') || 0 );
97 dpavlin 112
98 dpavlin 150 # support parametars "f" and "v" for start
99     for(my $i = ""; $i <=30; $i++) {
100 dpavlin 7
101 dpavlin 9 return show_index($self, $i) if ($q->param("f".$i."_index"));
102 dpavlin 112
103 dpavlin 71 next if (! $q->param("v$i"));
104 dpavlin 9 next if (! $q->param("f$i"));
105 dpavlin 7
106 dpavlin 112 push @persist_vars, "f$i";
107     push @persist_vars, "v$i";
108    
109 dpavlin 126 push @url_params,"f$i=".$q->url_param("f$i");
110     push @url_params,"v$i=".$q->url_param("v$i");
111    
112 dpavlin 150 my $wc="*"; # swish wildcard
113     $wc="" if ($i eq ""); # don't apply wildcard on field 0
114    
115 dpavlin 7 # re-write query from +/- to and/and not
116 dpavlin 73 my @param_vals = $q->param("v$i");
117     my @swish_q;
118     while (my $search = shift @param_vals) {
119     my $s;
120     # remove accents
121     $search = unac_string($CHARSET,$search);
122     while ($search =~ s/\s*("[^"]+")\s*/ /) {
123     $s .= "$1 ";
124     }
125     $search =~ s/^\s+//;
126     $search =~ s/\s+$//;
127 dpavlin 7
128 dpavlin 73 foreach (split(/\s+/,$search)) {
129     if (m/^([+-])(\S+)/) {
130     $s.= ($s) ? "and " : "";
131     $s.="not " if ($1 eq "-");
132 dpavlin 150 $s.="$2$wc ";
133 dpavlin 122 } elsif (m/^\s*(and|or|not)\s*$/i) {
134 dpavlin 73 $s.="$_ ";
135 dpavlin 120 # don't add * to words with less than x chars
136     } elsif (length($_) <= $MIN_WILDCARD) {
137     $s.="$_ ";
138 dpavlin 73 } else {
139 dpavlin 150 $s.="$_$wc ";
140 dpavlin 73 }
141 dpavlin 7 }
142 dpavlin 73 $s =~ s/\*+/*/g;
143     push @swish_q,$s;
144 dpavlin 7 }
145 dpavlin 73 # FIXME default operator for multi-value fields is or. There is
146     # no way to change it, except here for now. Is there need?
147     push @s_arr, $q->param("f$i")."_swish=(".join(" or ",@swish_q).")";
148 dpavlin 7 }
149    
150 dpavlin 126 my $tmpl = $self->load_tmpl('results.html', global_vars => 1);
151 dpavlin 9
152 dpavlin 80 sub esc_html {
153     my $html = shift;
154     $html =~ s/</&lt;/g;
155     $html =~ s/>/&gt;/g;
156     return $html;
157     }
158    
159 dpavlin 7 # call swish
160     my $sh = SWISH->connect('Fork',
161     prog => $SWISH,
162     indexes => $INDEX,
163 dpavlin 13 properties => [qw/swishdocpath swishrank swishtitle headline html/],
164 dpavlin 7 results => sub {
165     my ($sh,$hit) = @_;
166    
167     push @swish_results, {
168     nr => ($#swish_results + 2),
169     path => $hit->swishdocpath,
170 dpavlin 80 headline => esc_html($from_utf8->convert($hit->headline)),
171 dpavlin 41 html => back2html($from_utf8->convert($hit->html)),
172 dpavlin 7 rank => $hit->swishrank };
173    
174     },
175     #startnum => 0,
176 dpavlin 47 maxhits => $MAX_HITS
177 dpavlin 7 );
178    
179     die $SWISH::errstr unless $sh;
180 dpavlin 47 # construct swish query
181     my $sw_q = join(" and ",@s_arr);
182 dpavlin 111 if (@path_arr && $q->param('show_full')) {
183 dpavlin 47 $sw_q .= "and (swishdocpath=\"";
184     $sw_q .= join("\" or swishdocpath=\"",@path_arr);
185     $sw_q .= "\")";
186     $tmpl->param('full',1); # show full records
187 dpavlin 149 } elsif ($q->param('show_full')) {
188     # just show full path, no path defined
189     $tmpl->param('full',1);
190 dpavlin 121 } else {
191     $tmpl->param('full',0);
192 dpavlin 47 }
193 dpavlin 7
194 dpavlin 47 my $hits = $sh->query($sw_q);
195    
196 dpavlin 7 $tmpl->param('hits',$hits);
197 dpavlin 47 $tmpl->param('search',$sw_q);
198 dpavlin 7
199 dpavlin 76 $tmpl->param('PAGER_offset',$q->param("PAGER_offset") || 0);
200     $tmpl->param('last_PAGER_offset',$q->param("last_PAGER_offset") || 0);
201 dpavlin 51
202 dpavlin 126 $tmpl->param('url_params',"?".join("&",@url_params));
203    
204 dpavlin 7 # create a Pager object
205     my $pager = HTML::Pager->new(
206     # required parameters
207     query => $q,
208     get_data_callback => sub {
209     my ($offset, $rows) = @_;
210    
211     my @result;
212     for (my $i=0; $i<$rows; $i++) {
213 dpavlin 114 my $r = $swish_results[$offset+$i];
214 dpavlin 121 if ($r && $tmpl->param('full')) {
215 dpavlin 114 push @result, $r;
216     } elsif ($r) {
217     # if not full output, skip html
218     delete $r->{html};
219     push @result, $r;
220     }
221 dpavlin 7 }
222     return \@result;
223     },
224     rows => $hits,
225     page_size => $ON_PAGE,
226     # some optional parameters
227 dpavlin 112 persist_vars => [ @persist_vars ],
228 dpavlin 7 #cell_space_color => '#000000',
229     #cell_background_color => '#ffffff',
230     #nav_background_color => '#dddddd',
231     #javascript_presubmit => 'last_minute_javascript()',
232     debug => 1,
233     template => $tmpl,
234     );
235    
236     my $html = $pager->output;
237    
238 dpavlin 147 return in_template($html);
239 dpavlin 7 }
240    
241 dpavlin 9 sub show_index {
242     my $self = shift;
243     my $i = shift; # field number
244    
245     my $q = $self->query();
246    
247 dpavlin 11 my $field = $q->param("f$i");
248     my $limit = $q->param("v$i");
249    
250 dpavlin 9 my $html;
251    
252 dpavlin 53 my $index = new index_DBI(
253     $cfg_global->val('global', 'dbi_dbd'),
254     $cfg_global->val('global', 'dbi_dsn'),
255     $cfg_global->val('global', 'dbi_user'),
256     $cfg_global->val('global', 'dbi_passwd') || ''
257     );
258 dpavlin 9
259 dpavlin 140 my $total = $index->count($field,$limit);
260 dpavlin 12 if (! $total) {
261 dpavlin 11 my $tmpl = $self->load_tmpl('no_index.html');
262     $tmpl->param('field',$field);
263     $html = $tmpl->output;
264     return $html;
265     }
266 dpavlin 9
267 dpavlin 124 my $tmpl = $self->load_tmpl('index_res.html', global_vars => 1);
268 dpavlin 12 $tmpl->param('field',$field);
269     $tmpl->param('limit',$limit);
270     $tmpl->param('total',$total);
271 dpavlin 11
272 dpavlin 51 # FIXME I should set offset and leave out limit from fetch!!
273 dpavlin 16 # if (! $q->param("PAGER_offset") {
274     # $q->param("Pager_offet)
275     # }
276    
277 dpavlin 12 my $pager = HTML::Pager->new(
278     query => $q,
279     get_data_callback => sub {
280     my ($offset, $rows) = @_;
281 dpavlin 11
282 dpavlin 140 my @result = $index->fetch($field,$limit, $offset, $rows);
283 dpavlin 12 return \@result;
284     },
285     rows => $total,
286     page_size => $ON_PAGE,
287     persist_vars => [
288     'rm',
289     "f$i", "v$i", "f".$i."_index",
290     'offset',
291     ],
292     debug => 1,
293     template => $tmpl,
294     );
295 dpavlin 11
296 dpavlin 147 return in_template($pager->output);
297 dpavlin 9 }
298    
299 dpavlin 7 1;

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