/usr/share/perl5/Tangram/Expr/QueryObject.pm is in libtangram-perl 2.10-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 | package Tangram::Expr::QueryObject;
use strict;
use Tangram::Expr::Filter;
use Carp;
sub new
{
# $obj is a Tangram::Expr::RDBObject
my ($pkg, $obj) = @_;
bless $obj->expr_hash(), $pkg;
}
sub object
{
shift->{_object}
}
sub table_ids
{
shift->{_object}->table_ids()
}
sub class
{
shift->{_object}{class}
}
sub eq
{
my ($self, $other) = @_;
if (!defined($other))
{
$self->{id} == undef
}
elsif ($other->isa('Tangram::Expr::QueryObject'))
{
$self->{id} == $other->{id}
}
else
{
my $other_id = $self->{_object}{storage}->id($other)
or confess "'$other' is not a persistent object";
$self->{id} == $self->{_object}{storage}->export_object($other)
}
}
sub is_kind_of
{
my ($self, $class) = @_;
my $object = $self->{_object};
my $root = $object->{tables}[0][1];
my $storage = $object->{storage};
Tangram::Expr::Filter->new(
expr => "t$root.$storage->{class_col} IN (" . join(', ', $storage->_kind_class_ids($class) ) . ')',
tight => 100,
objects => Set::Object->new( $object ) );
}
sub in
{
my $self = shift;
my $object = $self->{_object};
my $root = $object->{tables}[0][1];
my $storage = $object->{storage};
my $objs = Set::Object->new();
while ( my $item = shift ) {
if ( ref $item eq "ARRAY" ) {
$objs->insert(@$item);
} elsif ( UNIVERSAL::isa($item, "Set::Object") ) {
if ( $objs->size ) {
$objs->insert($item->members);
} else {
$objs = $item;
}
} else {
$objs->insert($item);
}
}
my $expr;
if ( $objs->size ) {
$expr = ("t$root.$storage->{id_col} IN ("
. join(', ',
# FIXME - what about table aliases? Hmm...
map { $storage->export_object($_) }
$objs->members )
. ')');
} else {
# hey, you never know :)
$expr = ("t$root.$storage->{id_col} IS NULL");
}
Tangram::Expr::Filter->new(
expr => $expr,
tight => 100,
objects => Set::Object->new( $object )
);
}
sub expr
{
shift->{id}{expr}
}
sub count
{
my ($self, $val) = @_;
# $DB::single = 1;
Tangram::Expr->new(Tangram::Type::Integer->instance,
"COUNT(" . $self->{id}{expr} . ")",
$self->{id}->objects,
);
}
use overload "==" => \&eq, "!=" => \&ne, fallback => 1;
1;
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