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add a very basic web_like search endpoint
This is related to metacpan-web's module-model's search method. This then needs to be wrapped into search_expanded, search_collapsed etc.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,22 @@ | ||
| package MetaCPAN::Server::Controller::Search::WebLike; | ||
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| use strict; | ||
| use warnings; | ||
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| use Moose; | ||
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| BEGIN { extends 'MetaCPAN::Server::Controller' } | ||
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| with 'MetaCPAN::Server::Role::JSONP'; | ||
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| sub get : Chained('/search/index') : PathPart('web_like') : Args(0) { | ||
| my ( $self, $c ) = @_; | ||
| my $args = $c->req->params; | ||
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| my $model = $c->model('Search'); | ||
| my $query = $model->build_query( $args->{q} ); | ||
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| $c->stash( $model->run_query($query) ); | ||
| } | ||
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| 1; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,185 @@ | ||
| package MetaCPAN::Server::Model::Search; | ||
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| use strict; | ||
| use warnings; | ||
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| use Moose; | ||
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| extends 'MetaCPAN::Server::Model::CPAN'; | ||
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| use Hash::Merge qw( merge ); | ||
| use List::Util qw(uniq); | ||
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| my $RESULTS_PER_RUN = 200; | ||
| my @ROGUE_DISTRIBUTIONS | ||
| = qw(kurila perl_debug perl_mlb perl-5.005_02+apache1.3.3+modperl pod2texi perlbench spodcxx Bundle-Everything); | ||
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| sub _not_rogue { | ||
| my @rogue_dists | ||
| = map { { term => { 'distribution' => $_ } } } @ROGUE_DISTRIBUTIONS; | ||
| return { not => { filter => { or => \@rogue_dists } } }; | ||
| } | ||
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| # was sub search {} | ||
| sub build_query { | ||
| my ( $self, $query, $params ) = @_; | ||
| $params //= {}; | ||
| ( my $clean = $query ) =~ s/::/ /g; | ||
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| my $negative | ||
| = { term => { 'mime' => { value => 'text/x-script.perl' } } }; | ||
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| my $positive = { | ||
| bool => { | ||
| should => [ | ||
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| # exact matches result in a huge boost | ||
| { | ||
| term => { | ||
| 'documentation' => { | ||
| value => $query, | ||
| boost => 100 | ||
| } | ||
| } | ||
| }, | ||
| { | ||
| term => { | ||
| 'module.name' => { | ||
| value => $query, | ||
| boost => 100 | ||
| } | ||
| } | ||
| }, | ||
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| # take the maximum score from the module name and the abstract/pod | ||
| { | ||
| dis_max => { | ||
| queries => [ | ||
| { | ||
| query_string => { | ||
| fields => [ | ||
| qw(documentation.analyzed^2 module.name.analyzed^2 distribution.analyzed), | ||
| qw(documentation.camelcase module.name.camelcase distribution.camelcase) | ||
| ], | ||
| query => $clean, | ||
| boost => 3, | ||
| default_operator => 'AND', | ||
| allow_leading_wildcard => 0, | ||
| use_dis_max => 1, | ||
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| } | ||
| }, | ||
| { | ||
| query_string => { | ||
| fields => [ | ||
| qw(abstract.analyzed pod.analyzed) | ||
| ], | ||
| query => $clean, | ||
| default_operator => 'AND', | ||
| allow_leading_wildcard => 0, | ||
| use_dis_max => 1, | ||
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| } | ||
| } | ||
| ] | ||
| } | ||
| } | ||
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| ] | ||
| } | ||
| }; | ||
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| my $search = merge( | ||
| $params, | ||
| { | ||
| query => { | ||
| filtered => { | ||
| query => { | ||
| function_score => { | ||
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| # prefer shorter module names | ||
| script_score => { | ||
| script => { | ||
| lang => 'groovy', | ||
| file => 'prefer_shorter_module_names_400', | ||
| }, | ||
| }, | ||
| query => { | ||
| boosting => { | ||
| negative_boost => 0.5, | ||
| negative => $negative, | ||
| positive => $positive | ||
| } | ||
| } | ||
| } | ||
| }, | ||
| filter => { | ||
| and => [ | ||
| $self->_not_rogue, | ||
| { term => { status => 'latest' } }, | ||
| { term => { 'authorized' => 1 } }, | ||
| { term => { 'indexed' => 1 } }, | ||
| { | ||
| or => [ | ||
| { | ||
| and => [ | ||
| { | ||
| exists => { | ||
| field => 'module.name' | ||
| } | ||
| }, | ||
| { | ||
| term => { | ||
| 'module.indexed' => 1 | ||
| } | ||
| } | ||
| ] | ||
| }, | ||
| { | ||
| exists => { field => 'documentation' } | ||
| }, | ||
| ] | ||
| } | ||
| ] | ||
| } | ||
| } | ||
| }, | ||
| _source => "module", | ||
| fields => [ | ||
| qw( | ||
| documentation | ||
| author | ||
| abstract.analyzed | ||
| release | ||
| path | ||
| status | ||
| indexed | ||
| authorized | ||
| distribution | ||
| date | ||
| id | ||
| pod_lines | ||
| ) | ||
| ], | ||
| } | ||
| ); | ||
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| # Ensure our requested fields are unique so that Elasticsearch doesn't | ||
| # return us the same value multiple times in an unexpected arrayref. For | ||
| # example, distribution is listed both above and in ->_search, which calls | ||
| # this function (->search) and gets merged with the query above. | ||
| $search->{fields} = [ uniq @{ $search->{fields} || [] } ]; | ||
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| return $search; | ||
| } | ||
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| sub run_query { | ||
| my ( $self, $query ) = @_; | ||
| return $self->es->search( | ||
| index => $self->index, | ||
| body => $query, | ||
| ); | ||
| } | ||
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| 1; | ||
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