/usr/share/perl5/Tangram/Relational/Schema.pm is in libtangram-perl 2.12-1.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 | package Tangram::Relational::Schema;
use strict;
use Tangram::Schema;
sub _deploy_do
{
my $output = shift;
return ref($output) && eval { $output->isa('DBI::db') }
? sub { print $Tangram::TRACE "Deploying with: >-\n",
@_, ($_[$#_]=~m/\n\Z/?"":"\n"),
"...\n" if $Tangram::TRACE;
$output->do( join '', @_ ); }
: sub { print $output @_, ";\n\n" };
}
sub deploy
{
my ($self, $output) = @_;
my ($tables, $engine) = @$self;
my $schema = $engine->{SCHEMA};
$output ||= \*STDOUT;
my $driver = $engine->{driver} || Tangram::Relational->new();
my $do = _deploy_do($output);
foreach my $table (sort keys %$tables)
{
my $def = $tables->{$table};
my $cols = $def->{COLS};
my @base_cols;
my $type = $def->{TYPE} || $schema->{sql}{table_type};
my $id_col = $schema->{sql}{id_col};
my $class_col = $schema->{sql}{class_col} || 'type';
my $timestamp_col = $schema->{sql}{timestamp_col} || '__ts';
my $timestamp_type = $schema->{sql}{timestamp} || 'TIMESTAMP';
my $timestamp = $schema->{sql}{timestamp_all_tables};
push @base_cols,("$id_col ".
$driver->type("$schema->{sql}{id} NOT NULL"))
if exists $cols->{$id_col};
push @base_cols, "$class_col "
.$driver->type("$schema->{sql}{cid} NOT NULL")
if exists $cols->{$class_col};
push @base_cols, "$timestamp_col "
.$driver->type("$timestamp_type NOT NULL")
if $timestamp;
delete @$cols{$id_col};
delete @$cols{$class_col};
$do->("CREATE TABLE $table\n(\n ",
join( ",\n ", (@base_cols,
map { "$_ ".$driver->type($cols->{$_}) }
keys %$cols),
( exists $cols->{$id_col}
? ("PRIMARY KEY( $id_col )")
: () ),
),
"\n) ".($type?" ENGINE=$type":""));
}
my %made_sequence;
foreach my $class ( values %{$schema->{classes}} ) {
if ( my $sequence = $class->{oid_sequence} ) {
$do->($driver->mk_sequence_sql($sequence))
unless $made_sequence{$sequence}++;
}
}
my $control = $schema->{control};
my $table_type = $schema->{sql}{table_type};
if ( my $sequence = $schema->{sql}{oid_sequence} ) {
$do->($driver->mk_sequence_sql($sequence))
unless $made_sequence{$sequence}++;
} else {
$do->( <<SQL . ($table_type?" ENGINE=$table_type":"") );
CREATE TABLE $control
(
layout INTEGER NOT NULL,
engine VARCHAR(255),
engine_layout INTEGER,
mark INTEGER NOT NULL
)
SQL
my $info = $engine->get_deploy_info();
#my ($l) = split '\.', $Tangram::VERSION;
# Prevent additional records on redeploy.
# -- ks.perl@kurtstephens.com 2004/04/29
$do->("CREATE UNIQUE INDEX ${control}_Guard ON $control (layout, engine, engine_layout)");
$do->("INSERT INTO $control (layout, engine, engine_layout, mark)"
." VALUES ($info->{LAYOUT}, '$info->{ENGINE}', "
."$info->{ENGINE_LAYOUT}, 0)");
}
}
sub retreat
{
my ($self, $output) = @_;
my ($tables, $engine) = @$self;
my $schema = $engine->{SCHEMA};
$output ||= \*STDOUT;
my $do = _deploy_do($output);
my %dropped_sequences;
my $driver = $engine->{driver} || Tangram::Relational->new();
my $oid_sequence = $schema->{sql}{oid_sequence};
for my $table (sort keys %$tables,
($oid_sequence ? () : $schema->{control}))
{
$do->( "DROP TABLE $table" );
}
for my $class ( values %{ $schema->{classes} } ) {
if ( my $sequence = $class->{oid_sequence} ) {
$do->($driver->drop_sequence_sql($sequence))
unless $dropped_sequences{$sequence}++;
}
}
if ( $oid_sequence ) {
$do->($driver->drop_sequence_sql($oid_sequence));
}
}
# XXX - never reached in the test suite; debugging function?
sub classids
{
my ($self) = @_;
my ($tables, $schema) = @$self;
my $classes = $schema->{classes};
# use Data::Dumper;
return { map { $_ => $classes->{$_}{id} } keys %$classes };
}
1;
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