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package WWW::CPAN; |
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527418
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use 5.006; |
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use strict; |
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use warnings; |
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147
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8
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our $VERSION = '0.013'; |
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2245
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use Class::Lego::Constructor 0.004 (); |
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54801
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90
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1592
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use parent qw( Class::Accessor Class::Lego::Constructor ); |
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544
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20
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my $FIELDS = { |
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host => 'search.cpan.org', |
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ua => sub { # default useragent |
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my %options = ( agent => 'www-cpan/' . $VERSION, ); |
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# require LWP::UserAgent; |
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# return LWP::UserAgent->new( %options ); |
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require LWP::UserAgent::Determined; |
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return LWP::UserAgent::Determined->new(%options); |
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}, |
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j_loader => sub { # json loader sub |
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require JSON::MaybeXS; |
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my $j = JSON::MaybeXS->new; |
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return sub { $j->decode(shift); } |
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}, |
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x_loader => sub { # xml loader sub |
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require XML::Simple; |
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my %options = ( |
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ForceArray => [qw( module dist match )], |
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KeyAttr => [], |
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); |
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my $x = XML::Simple->new(%options); |
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return sub { $x->XMLin(shift); } |
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}, |
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}; |
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__PACKAGE__->mk_constructor0($FIELDS); |
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__PACKAGE__->mk_accessors( keys %$FIELDS ); |
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3
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11490
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use Class::Lego::Myself; |
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39191
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3
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22
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43
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__PACKAGE__->give_my_self; |
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3
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944
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use Carp qw( carp ); |
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1936
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46
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47
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sub _build_distmeta_uri { |
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my $self = shift; |
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2
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my $params = shift; |
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2
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10
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if ( !ref $params ) { |
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2
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$params = { dist => $params }; |
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} |
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2
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12
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require URI; |
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2
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my $uri = URI->new(); |
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2
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103
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$uri->scheme('http'); |
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2
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338
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$uri->authority( $self->host ); |
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2
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88
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my @path = qw( meta ); |
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2
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if ( $params->{author} ) { |
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0
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0
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push @path, $params->{author}; |
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} |
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63
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2
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5
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my $dist = $params->{dist}; |
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2
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50
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9
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if ( $params->{version} ) { |
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0
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0
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$dist .= '-' . $params->{version}; |
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} |
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2
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5
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push @path, $dist; |
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69
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2
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4
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push @path, 'META.json'; # XXX support YAML as well |
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2
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13
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$uri->path_segments(@path); |
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72
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152
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return $uri; |
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} |
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75
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sub fetch_distmeta { |
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2
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1
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326
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( my $self, @_ ) = &find_my_self; |
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24
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my $uri = $self->_build_distmeta_uri(@_); |
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2
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12
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my $r = $self->ua->get($uri); |
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2
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797319
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if ( $r->is_success ) { |
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81
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2
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my $content = $r->decoded_content; |
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83
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# Back to UTF8 (if needed) |
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513
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utf8::encode($content) |
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unless utf8::is_utf8($content); |
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87
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2
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20
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return $self->j_loader->($content); |
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} |
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else { |
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0
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carp $r->status_line; # FIXME needs more convincing error handling |
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0
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return; |
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} |
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} |
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95
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# http://search.cpan.org/search?query=Archive&mode=all&format=xml |
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sub _build_query_uri { |
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0
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my $self = shift; |
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0
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my $params = shift; |
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100
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0
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0
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if ( !ref $params ) { |
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0
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$params = { query => $params, mode => 'all', format => 'xml', }; |
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} |
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0
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require URI; |
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0
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my $uri = URI->new(); |
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0
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$uri->scheme('http'); |
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0
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$uri->authority( $self->host ); |
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0
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my @path = qw( search ); |
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0
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$uri->path_segments(@path); |
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110
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0
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0
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$params->{mode} ||= 'all'; |
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0
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0
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$params->{format} ||= 'xml'; |
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0
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$uri->query_form($params); |
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114
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0
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return $uri; |
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} |
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117
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# other params: s (start), n (page size, should be <= 100) |
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119
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sub _basic_query { |
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0
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0
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my $self = shift; |
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0
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my $uri = $self->_build_query_uri(@_); |
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0
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my $r = $self->ua->get($uri); |
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0
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0
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if ( $r->is_success ) { |
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0
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return $self->x_loader->( $r->content ); |
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} |
126
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else { |
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0
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carp $r->status_line; # FIXME needs more convincing error handling |
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0
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return; |
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} |
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} |
131
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132
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sub search { |
133
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0
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0
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my $self = &find_my_self; |
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0
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return $self->_basic_query(@_); |
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} |
136
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137
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# TODO fetch the entire result by default |
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139
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# &query is an alias to &search (see Method::Alias for the rationale) |
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sub query { |
141
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0
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0
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1
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goto &{ $_[0]->can('search') }; |
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142
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} |
143
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144
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"I didn't do it! -- Bart Simpson"; |