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

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Revision 111 - (hide annotations)
Tue Jul 15 12:48:49 2003 UTC (16 years, 4 months ago) by dpavlin
File size: 6037 byte(s)
fix pager bug when you have selected items

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    
30    
31 dpavlin 30 Text::Iconv->raise_error(0); # Conversion errors raise exceptions
32 dpavlin 7
33 dpavlin 14 my $from_utf8 = Text::Iconv->new('UTF8', $CHARSET);
34    
35 dpavlin 53
36 dpavlin 7 sub setup {
37     my $self = shift;
38     $self->tmpl_path($TEMPLATE_PATH);
39     $self->run_modes(
40     'search' => 'show_search_form',
41     'results' => 'show_results_list',
42 dpavlin 9 # 'user' => 'show_user_detail',
43     'index' => 'show_index',
44 dpavlin 7 );
45     $self->start_mode('search');
46     $self->mode_param('rm');
47    
48     $self->header_props(-charset=>$CHARSET);
49     }
50    
51     sub show_search_form {
52     my $self = shift;
53    
54     # Get the CGI.pm query object
55     my $q = $self->query();
56    
57     my $tmpl = $self->load_tmpl('search.html');
58     my $html = $tmpl->output;
59    
60     my $fif = new HTML::FillInForm;
61    
62     return $fif->fill(scalarref => \$html, fobject => $q,
63     target => 'search');
64     }
65    
66     sub show_results_list {
67     my $self = shift;
68    
69     my $q = $self->query();
70    
71     my @swish_results; # results from swish
72    
73     # load template for this page
74    
75     my @s_arr; # all queries are located here
76    
77 dpavlin 47 my @path_arr = $q->param('path');
78     my $full = $q->param('full');
79    
80 dpavlin 71 for(my $i = 1; $i <=30; $i++) {
81 dpavlin 7
82 dpavlin 9 return show_index($self, $i) if ($q->param("f".$i."_index"));
83 dpavlin 71 next if (! $q->param("v$i"));
84 dpavlin 9 next if (! $q->param("f$i"));
85 dpavlin 7
86     # re-write query from +/- to and/and not
87 dpavlin 73 my @param_vals = $q->param("v$i");
88     my @swish_q;
89     while (my $search = shift @param_vals) {
90     my $s;
91     # remove accents
92     $search = unac_string($CHARSET,$search);
93     while ($search =~ s/\s*("[^"]+")\s*/ /) {
94     $s .= "$1 ";
95     }
96     $search =~ s/^\s+//;
97     $search =~ s/\s+$//;
98 dpavlin 7
99 dpavlin 73 foreach (split(/\s+/,$search)) {
100     if (m/^([+-])(\S+)/) {
101     $s.= ($s) ? "and " : "";
102     $s.="not " if ($1 eq "-");
103     $s.="$2* ";
104     } elsif (m/(and|or|not)/i) {
105     $s.="$_ ";
106     } else {
107     $s.="$_* ";
108     }
109 dpavlin 7 }
110 dpavlin 73 $s =~ s/\*+/*/g;
111     push @swish_q,$s;
112 dpavlin 7 }
113 dpavlin 73 # FIXME default operator for multi-value fields is or. There is
114     # no way to change it, except here for now. Is there need?
115     push @s_arr, $q->param("f$i")."_swish=(".join(" or ",@swish_q).")";
116 dpavlin 7 }
117    
118 dpavlin 9 my $tmpl = $self->load_tmpl('results.html');
119    
120 dpavlin 80 sub esc_html {
121     my $html = shift;
122     $html =~ s/</&lt;/g;
123     $html =~ s/>/&gt;/g;
124     return $html;
125     }
126    
127 dpavlin 7 # call swish
128     my $sh = SWISH->connect('Fork',
129     prog => $SWISH,
130     indexes => $INDEX,
131 dpavlin 13 properties => [qw/swishdocpath swishrank swishtitle headline html/],
132 dpavlin 7 results => sub {
133     my ($sh,$hit) = @_;
134    
135     push @swish_results, {
136     nr => ($#swish_results + 2),
137     path => $hit->swishdocpath,
138 dpavlin 80 headline => esc_html($from_utf8->convert($hit->headline)),
139 dpavlin 41 html => back2html($from_utf8->convert($hit->html)),
140 dpavlin 7 rank => $hit->swishrank };
141    
142     },
143     #startnum => 0,
144 dpavlin 47 maxhits => $MAX_HITS
145 dpavlin 7 );
146    
147     die $SWISH::errstr unless $sh;
148 dpavlin 47 # construct swish query
149     my $sw_q = join(" and ",@s_arr);
150 dpavlin 111 if (@path_arr && $q->param('show_full')) {
151 dpavlin 47 $sw_q .= "and (swishdocpath=\"";
152     $sw_q .= join("\" or swishdocpath=\"",@path_arr);
153     $sw_q .= "\")";
154     $tmpl->param('full',1); # show full records
155     }
156 dpavlin 7
157 dpavlin 47 my $hits = $sh->query($sw_q);
158    
159 dpavlin 7 $tmpl->param('hits',$hits);
160 dpavlin 47 $tmpl->param('search',$sw_q);
161 dpavlin 7
162 dpavlin 76 $tmpl->param('PAGER_offset',$q->param("PAGER_offset") || 0);
163     $tmpl->param('last_PAGER_offset',$q->param("last_PAGER_offset") || 0);
164 dpavlin 51
165 dpavlin 7 # create a Pager object
166     my $pager = HTML::Pager->new(
167     # required parameters
168     query => $q,
169     get_data_callback => sub {
170     my ($offset, $rows) = @_;
171    
172     my @result;
173     for (my $i=0; $i<$rows; $i++) {
174     push @result, $swish_results[$offset+$i] if $swish_results[$offset+$i];
175     }
176     return \@result;
177     },
178     rows => $hits,
179     page_size => $ON_PAGE,
180     # some optional parameters
181     persist_vars => [
182     'rm',
183     'f1', 'v1',
184     'f2', 'v2',
185     'f3', 'v3',
186     'f4', 'v4',
187     'f5', 'v5',
188     'f6', 'v6',
189     'f7', 'v7',
190     'f8', 'v8',
191     'f9', 'v9',
192     ],
193     #cell_space_color => '#000000',
194     #cell_background_color => '#ffffff',
195     #nav_background_color => '#dddddd',
196     #javascript_presubmit => 'last_minute_javascript()',
197     debug => 1,
198     template => $tmpl,
199     );
200    
201     my $html = $pager->output;
202    
203     return $html;
204     }
205    
206 dpavlin 9 sub show_index {
207     my $self = shift;
208     my $i = shift; # field number
209    
210     my $q = $self->query();
211    
212 dpavlin 11 my $field = $q->param("f$i");
213     my $limit = $q->param("v$i");
214    
215 dpavlin 9 my $html;
216    
217 dpavlin 53 my $index = new index_DBI(
218     $cfg_global->val('global', 'dbi_dbd'),
219     $cfg_global->val('global', 'dbi_dsn'),
220     $cfg_global->val('global', 'dbi_user'),
221     $cfg_global->val('global', 'dbi_passwd') || ''
222     );
223 dpavlin 9
224 dpavlin 12 my $total = $index->check($field);
225     if (! $total) {
226 dpavlin 11 my $tmpl = $self->load_tmpl('no_index.html');
227     $tmpl->param('field',$field);
228     $html = $tmpl->output;
229     return $html;
230     }
231 dpavlin 9
232 dpavlin 12 my $tmpl = $self->load_tmpl('index_res.html');
233     $tmpl->param('field',$field);
234     $tmpl->param('limit',$limit);
235     $tmpl->param('total',$total);
236 dpavlin 11
237 dpavlin 51 # FIXME I should set offset and leave out limit from fetch!!
238 dpavlin 16 # if (! $q->param("PAGER_offset") {
239     # $q->param("Pager_offet)
240     # }
241    
242 dpavlin 12 my $pager = HTML::Pager->new(
243     query => $q,
244     get_data_callback => sub {
245     my ($offset, $rows) = @_;
246 dpavlin 11
247 dpavlin 12 my @result = $index->fetch($field,'item',$limit, $offset, $rows);
248     return \@result;
249     },
250     rows => $total,
251     page_size => $ON_PAGE,
252     persist_vars => [
253     'rm',
254     "f$i", "v$i", "f".$i."_index",
255     'offset',
256     ],
257     debug => 1,
258     template => $tmpl,
259     );
260 dpavlin 11
261 dpavlin 12 return $pager->output;
262 dpavlin 9 }
263    
264 dpavlin 7 1;

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