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Direktori : /home/opti/optisoftcom-new/perl/usr/lib/perl5/MongoDB/Op/ |
Current File : /home/opti/optisoftcom-new/perl/usr/lib/perl5/MongoDB/Op/_Distinct.pm |
# Copyright 2015 - present MongoDB, Inc. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. use strict; use warnings; package MongoDB::Op::_Distinct; # Encapsulate distinct operation; return MongoDB::QueryResult use version; our $VERSION = 'v2.0.2'; use Moo; use MongoDB::Op::_Command; use MongoDB::_Types qw( Document ); use Types::Standard qw( InstanceOf HashRef Str ); use namespace::clean; has client => ( is => 'ro', required => 1, isa => InstanceOf ['MongoDB::MongoClient'], ); has fieldname=> ( is => 'ro', required => 1, isa => Str, ); has filter => ( is => 'ro', required => 1, isa => Document, ); has options => ( is => 'ro', required => 1, isa => HashRef, ); with $_ for qw( MongoDB::Role::_PrivateConstructor MongoDB::Role::_CollectionOp MongoDB::Role::_ReadOp MongoDB::Role::_CommandCursorOp ); sub execute { my ( $self, $link, $topology ) = @_; my $options = $self->options; if ( defined $options->{collation} and !$link->supports_collation ) { MongoDB::UsageError->throw( "MongoDB host '" . $link->address . "' doesn't support collation" ); } my $filter = ref( $self->filter ) eq 'ARRAY' ? { @{ $self->filter } } : $self->filter; my @command = ( distinct => $self->coll_name, key => $self->fieldname, query => $filter, ($link->supports_read_concern ? @{ $self->read_concern->as_args( $self->session) } : ()), %$options ); my $op = MongoDB::Op::_Command->_new( db_name => $self->db_name, query => Tie::IxHash->new(@command), query_flags => {}, read_preference => $self->read_preference, bson_codec => $self->bson_codec, session => $self->session, monitoring_callback => $self->monitoring_callback, ); my $res = $op->execute( $link, $topology ); $res->output->{cursor} = { ns => '', id => 0, firstBatch => ( delete $res->output->{values} ) || [], }; return $self->_build_result_from_cursor($res); } 1;