1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
|
package MojoMojo::Model::Search;
use strict;
use parent 'Catalyst::Model';
use KinoSearch::InvIndexer;
use KinoSearch::Searcher;
use KinoSearch::Analysis::PolyAnalyzer;
use KinoSearch::Index::Term;
use KinoSearch::Search::Query;
use KinoSearch::QueryParser::QueryParser;
__PACKAGE__->config->{index_dir} ||= MojoMojo->config->{index_dir};
# Fall back just in case MojoMojo->config->{index_dir} doesn't exist
# but it should. See MojoMojo.pm to verify that we will short circuit
# on this next line.
__PACKAGE__->config->{index_dir} ||= MojoMojo->path_to('/index');
=head1 NAME
MojoMojo::Model::Search - support for searching pages
=head1 METHODS
=cut
my $invindexer;
my $analyzer = KinoSearch::Analysis::PolyAnalyzer->new( language => _get_language() );
=head2 indexer
Index the search data
=cut
sub indexer {
my $self = shift;
my $invindexer = KinoSearch::InvIndexer->new(
invindex => __PACKAGE__->config->{index_dir},
create =>
( -f __PACKAGE__->config->{index_dir} . '/segments' ? 0 : 1 ),
analyzer => $analyzer,
);
$invindexer->spec_field( name => 'path', analyzed => 0 );
$invindexer->spec_field( name => 'text' );
$invindexer->spec_field( name => 'author' );
$invindexer->spec_field( name => 'date', analyzed => 0 );
$invindexer->spec_field( name => 'tags' );
return $invindexer;
}
=head2 searcher
Used by search() to do the grunt work.
=cut
sub searcher {
my $self = shift;
$self->prepare_search_index
unless -f __PACKAGE__->config->{index_dir} . '/segments';
return KinoSearch::Searcher->new(
invindex => __PACKAGE__->config->{index_dir},
analyzer => $analyzer,
);
}
=head2 prepare_search_index
Create a new search index from all pages in the database.
Will do nothing if the index already exists.
=cut
sub prepare_search_index {
my $self = shift;
MojoMojo->log->info("Initializing search index...")
if MojoMojo->debug;
# loop through all latest-version pages
my $count = 0;
my $it = MojoMojo->model('DBIC::Page')->search;
while ( my $page = $it->next ) {
$page->result_source->resultset->set_paths($page);
$self->index_page($page);
$count++;
}
MojoMojo->log->info("Indexed $count pages") if MojoMojo->debug;
}
=head2 index_page <page>
Create/update the search index with data from a MojoMojo page when it changes.
=cut
sub index_page {
my ( $self, $page ) = @_;
my $index = $self->indexer;
$page->discard_changes();
return unless ( $page && $page->content );
my $content = $page->content;
my $key = $page->path;
my $text = $content->body;
$text .= " " . $content->abstract if ( $content->abstract );
$text .= " " . $content->comments if ( $content->comments );
# translate the path into plain text so we can use it in the search query later
my $fixed_path = $key;
$fixed_path =~ s{/}{X}g;
my $term = KinoSearch::Index::Term->new( path => $fixed_path );
$index->delete_docs_by_term($term);
my $doc = $index->new_doc();
$doc->set_value( author => $content->creator->login );
$doc->set_value( path => $fixed_path );
$doc->set_value(
date => ( $content->created ) ? $content->created->ymd : '' );
$doc->set_value( tags => join( ' ', map { $_->tag } $page->tags ) );
$doc->set_value( text => $text );
$index->add_doc($doc);
$index->finish( optimize => 1 );
}
=head2 search
Search for a term or phrase.
=cut
sub search {
my ( $self, $q ) = @_;
my $qp = KinoSearch::QueryParser::QueryParser->new(
analyzer => $analyzer,
fields => [ 'text', 'tags' ],
default_boolop => 'AND'
);
my $query = $qp->parse($q);
my $hits = $self->searcher->search( query => $query );
return $hits;
}
=head2 delete_page <page>
Removes a page from the search index.
=cut
sub delete_page {
my ( $self, $page ) = @_;
return unless $page;
my $index = $self->indexer;
my $path = $page->path;
$path =~ s{/}{X}g;
my $term = KinoSearch::Index::Term->new( path => $path );
$index->delete_docs_by_term($term);
$index->finish( optimize => 1 );
}
sub _get_language {
my %supported_lang = map { $_ => 1 } qw( en da de es fi fr it nl no pt ru sv );
my $default_lang = __PACKAGE__->config->{default_lang} || MojoMojo->config->{default_lang} || 'en';
return exists $supported_lang{$default_lang} ? $default_lang : 'en';
}
=head1 AUTHOR
Marcus Ramberg <mramberg@cpan.org>
=head1 LICENSE
This library is free software. You can redistribute it and/or modify
it under the same terms as Perl itself.
=cut
1;
|
