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146 lines
4.9 KiB
146 lines
4.9 KiB
package Koha::REST::Plugin::Objects;
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# This file is part of Koha.
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#
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# Koha is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# Koha is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Koha; if not, see <http://www.gnu.org/licenses>.
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use Modern::Perl;
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use Mojo::Base 'Mojolicious::Plugin';
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use JSON;
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=head1 NAME
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Koha::REST::Plugin::Objects
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=head1 API
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=head2 Helper methods
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=head3 objects.search
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my $patrons_rs = Koha::Patrons->new;
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my $patrons = $c->objects->search( $patrons_rs );
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Performs a database search using given Koha::Objects object and query parameters.
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Returns an arrayref of the hashrefs representing the resulting objects
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for API rendering.
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=cut
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sub register {
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my ( $self, $app ) = @_;
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$app->helper(
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'objects.search' => sub {
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my ( $c, $result_set ) = @_;
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my $args = $c->validation->output;
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my $attributes = {};
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# Extract reserved params
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my ( $filtered_params, $reserved_params, $path_params ) = $c->extract_reserved_params($args);
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# Look for embeds
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my $embed = $c->stash('koha.embed');
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# Merge sorting into query attributes
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$c->dbic_merge_sorting(
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{
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attributes => $attributes,
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params => $reserved_params,
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result_set => $result_set
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}
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);
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# If no pagination parameters are passed, default
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$reserved_params->{_per_page} //= C4::Context->preference('RESTdefaultPageSize');
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$reserved_params->{_page} //= 1;
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unless ( $reserved_params->{_per_page} == -1 ) {
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# Merge pagination into query attributes
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$c->dbic_merge_pagination(
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{
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filter => $attributes,
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params => $reserved_params
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}
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);
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}
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# Generate prefetches for embedded stuff
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$c->dbic_merge_prefetch(
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{
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attributes => $attributes,
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result_set => $result_set
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}
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);
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# Call the to_model function by reference, if defined
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if ( defined $filtered_params ) {
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# Apply the mapping function to the passed params
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$filtered_params = $result_set->attributes_from_api($filtered_params);
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$filtered_params = $c->build_query_params( $filtered_params, $reserved_params );
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}
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if ( defined $path_params ) {
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# Apply the mapping function to the passed params
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$filtered_params //= {};
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$path_params = $result_set->attributes_from_api($path_params);
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foreach my $param (keys %{$path_params}) {
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$filtered_params->{$param} = $path_params->{$param};
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}
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}
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if( defined $reserved_params->{q} || defined $reserved_params->{query} || defined $reserved_params->{'x-koha-query'}) {
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$filtered_params //={};
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my @query_params_array;
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my $query_params;
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push @query_params_array, $reserved_params->{query} if defined $reserved_params->{query};
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my $json = JSON->new;
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push @query_params_array, $json->decode($reserved_params->{q}) if defined $reserved_params->{q};
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push @query_params_array, $json->decode($reserved_params->{'x-koha-query'}) if defined $reserved_params->{'x-koha-query'};
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if(scalar(@query_params_array) > 1) {
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$query_params = {'-and' => \@query_params_array};
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} else {
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$query_params = $query_params_array[0];
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}
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$filtered_params = $c->merge_q_params( $filtered_params, $query_params, $result_set );
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}
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# Perform search
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my $objects = $result_set->search( $filtered_params, $attributes );
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if ($objects->is_paged) {
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$c->add_pagination_headers({
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total => $objects->pager->total_entries,
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params => $args,
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});
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}
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else {
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$c->add_pagination_headers({
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total => $objects->count,
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params => $args,
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});
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}
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return $objects->to_api({ embed => $embed });
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}
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);
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}
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1;
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