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# Copyright (c) 1997-2018
# Ewgenij Gawrilow, Michael Joswig (Technische Universitaet Berlin, Germany)
# http://www.polymake.org
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2, or (at your option) any
# later version: http://www.gnu.org/licenses/gpl.txt.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#-------------------------------------------------------------------------------
#
# This file is part of the polymake database interface polyDB.
#
# @author Silke Horn, Andreas Paffenholz
# http://solros.de
# http://www.mathematik.tu-darmstadt.de/~paffenholz
#
use strict;
use JSON;
package PolyDB::DatabaseHelpers;
sub add_properties {
my ($flat_properties, $initial, $t) = @_;
foreach (sort keys %$t ) {
if ( ref($t->{$_}) eq "HASH" ) {
next if defined($t->{$_}->{'temporary'});
my @k = keys %{$t->{$_}};
if ( $k[0] =~ /[A-Z]+/ or $k[0] eq "attachments" ) {
my $ini = $_ eq "attachments" ? $initial : $initial.".".$_;
add_properties($flat_properties, $ini, $t->{$_});
} else {
my $props = " [";
foreach ( sort keys %{$t->{$_}} ) {
$props .= ", ".$_;
}
$props =~ s/, (.*)/$1/;
$props .= "]";
push @{$flat_properties}, $initial.".".$_." ".$props;
}
} else {
if ( $t->{$_} != 0 ) {
push @{$flat_properties}, $initial.".".$_;
}
}
}
}
sub read_json {
my ($file) = @_;
my $json_file = do {
open(my $fh,'<',$file) or die "cannot open file $file\n";
local $/;
<$fh>
};
my $json = JSON->new;
return $json->decode($json_file);
}
sub get_keys_for_collection {
my ($db,$collection,$options) = @_;
my $local = $options->{local};
my $client;
unless(defined($client = $options->{client})) {
$client = Client::get_client($local, "", "");
}
my $output = $client->get_database($db)->run_command([
"distinct" => "$PolyDB::default::db_type_information",
"key" => "key",
"query" => { 'col' => $collection }
]);
return $output->{'values'};
}
1;
# Local Variables:
# mode: perl
# cperl-indent-level:3
# indent-tabs-mode:nil
# End:
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