Geoffrey-Converter-Pg/lib/Geoffrey/Converter/Pg.pm
package Geoffrey::Converter::Pg;
use utf8;
use 5.016;
use strict;
use Readonly;
use warnings;
$Geoffrey::Converter::Pg::VERSION = '0.000204';
use parent 'Geoffrey::Role::Converter';
Readonly::Scalar my $I_CONST_LENGTH_VALUE => 2;
Readonly::Scalar my $I_CONST_NOT_NULL_VALUE => 3;
Readonly::Scalar my $I_CONST_PRIMARY_KEY_VALUE => 4;
Readonly::Scalar my $I_CONST_DEFAULT_VALUE => 5;
{
package Geoffrey::Converter::Pg::Constraints;
use parent 'Geoffrey::Role::ConverterType';
sub new {
my $class = shift;
return bless $class->SUPER::new(
not_null => 'NOT NULL',
unique => 'UNIQUE',
primary_key => 'PRIMARY KEY',
foreign_key => 'FOREIGN KEY',
check => 'CHECK',
default => 'DEFAULT',
), $class;
} ## end sub new
}
{
package Geoffrey::Converter::Pg::View;
use parent 'Geoffrey::Role::ConverterType';
sub add { return 'CREATE VIEW {0} AS {1}'; }
sub drop { return 'DROP VIEW {0}'; }
sub list {
my ( $self, $schema ) = @_;
return q~SELECT * FROM pg_views WHERE schemaname NOT IN('information_schema', 'pg_catalog')~;
}
}
{
package Geoffrey::Converter::Pg::ForeignKey;
use parent 'Geoffrey::Role::ConverterType';
sub add { return 'FOREIGN KEY ({0}) REFERENCES {1}({2})' }
sub list {
return q~SELECT
source_table::regclass,
source_attr.attname AS source_column,
target_table::regclass,
target_attr.attname AS target_column
FROM
pg_attribute target_attr,
pg_attribute source_attr,
(
SELECT
source_table,
target_table,
source_constraints[i] AS source_constraints,
target_constraints[i] AS target_constraints
FROM (
SELECT
conrelid as source_table,
confrelid AS target_table,
conkey AS source_constraints,
confkey AS target_constraints,
generate_series(1, array_upper(conkey, 1)) AS i
FROM
pg_constraint
WHERE
contype = 'f'
) query1
) query2
WHERE
target_attr.attnum = target_constraints
AND target_attr.attrelid = target_table
AND source_attr.attnum = source_constraints
AND source_attr.attrelid = source_table~;
} ## end sub list
}
{
package Geoffrey::Converter::Pg::Sequence;
use parent 'Geoffrey::Role::ConverterType';
sub add { return 'CREATE SEQUENCE {0} INCREMENT {1} MINVALUE {2} MAXVALUE {3} START {4} CACHE {5}' }
sub nextval { return q~DEFAULT nextval('{0}'::regclass~ }
}
{
package Geoffrey::Converter::Pg::PrimaryKey;
use parent 'Geoffrey::Role::ConverterType';
sub add { return 'CONSTRAINT {0} PRIMARY KEY ( {1} )'; }
sub list {
return q~SELECT
tc.table_schema,
tc.table_name,
kc.column_name,
kc.constraint_name
FROM
information_schema.table_constraints tc,
information_schema.key_column_usage kc
WHERE
tc.constraint_type = 'PRIMARY KEY'
AND kc.table_name = tc.table_name
AND kc.table_schema = tc.table_schema
AND kc.constraint_name = tc.constraint_name~;
} ## end sub list
}
{
package Geoffrey::Converter::Pg::UniqueIndex;
use parent 'Geoffrey::Role::ConverterType';
sub append { return 'CREATE UNIQUE INDEX IF NOT EXISTS {0} ON {1} ( {2} )'; }
sub add { return 'CONSTRAINT {0} UNIQUE ( {1} )'; }
sub drop { return 'DROP INDEX IF EXISTS {1}'; }
sub list {
list => q~SELECT
U.usename AS user_name,
ns.nspname AS schema_name,
idx.indrelid :: REGCLASS AS table_name,
i.relname AS index_name,
am.amname AS index_type,
idx.indkey,
ARRAY(
SELECT
pg_get_indexdef(idx.indexrelid, k + 1, TRUE)
FROM
generate_subscripts(idx.indkey, 1) AS k
ORDER BY k
) AS index_keys,
(idx.indexprs IS NOT NULL) OR (idx.indkey::int[] @> array[0]) AS is_functional,
idx.indpred IS NOT NULL AS is_partial
FROM
pg_index AS idx
JOIN pg_class AS i ON i.oid = idx.indexrelid
JOIN pg_am AS am ON i.relam = am.oid
JOIN pg_namespace AS NS ON i.relnamespace = NS.OID
JOIN pg_user AS U ON i.relowner = U.usesysid
WHERE
NOT nspname LIKE 'pg%'
AND NOT idx.indisprimary
AND idx.indisunique;~;
} ## end sub list
}
{
package Geoffrey::Converter::Pg::Function;
use parent 'Geoffrey::Role::ConverterType';
sub add { return q~CREATE FUNCTION {0}({1}) RETURNS {2} AS ' {3} ' LANGUAGE {4} VOLATILE COST {5}~; }
sub drop { return 'DROP FUNCTION {0} ({1})'; }
sub list {
list => q~SELECT n.nspname as "Schema",
p.proname as "Name",
p.prosrc,
p.procost,
pg_catalog.pg_get_function_result(p.oid) as result_data_type,
pg_catalog.pg_get_function_arguments(p.oid) as argument_data_types,
CASE
WHEN p.proisagg THEN 'agg'
WHEN p.proiswindow THEN 'window'
WHEN p.prorettype = 'pg_catalog.trigger'::pg_catalog.regtype THEN 'trigger'
ELSE
'normal'
END as
function_type
FROM
pg_catalog.pg_proc p
LEFT JOIN pg_catalog.pg_namespace n
ON ( n.oid = p.pronamespace )
WHERE
pg_catalog.pg_function_is_visible( p.oid )
AND n.nspname <> 'pg_catalog'
AND n.nspname <> 'information_schema'~;
} ## end sub list
}
{
package Geoffrey::Converter::Pg::Trigger;
use parent 'Geoffrey::Role::ConverterType';
sub add {
my ( $self, $options ) = @_;
my $s_sql_standard = <<'EOF';
CREATE TRIGGER {0} UPDATE OF {1} ON {2}
BEGIN
{4}
END
EOF
my $s_sql_view = <<'EOF';
CREATE TRIGGER {0} INSTEAD OF UPDATE OF {1} ON {2}
BEGIN
{4}
END
EOF
return $options->{for_view} ? $s_sql_view : $s_sql_standard;
} ## end sub add
sub drop { return 'DROP TRIGGER IF EXISTS {1}'; }
}
sub new {
my $class = shift;
my $self = $class->SUPER::new(@_);
$self->{min_version} = '9.1';
return bless $self, $class;
} ## end sub new
sub defaults {
return { current_timestamp => 'CURRENT_TIMESTAMP', autoincrement => 'SERIAL', };
}
sub type {
my ( $self, $hr_column_params ) = @_;
if ( $hr_column_params->{default} && $hr_column_params->{default} eq 'autoincrement' ) {
$hr_column_params->{type} = lc $hr_column_params->{type} eq 'bigint' ? 'bigserial' : lc $hr_column_params->{type} eq 'smallint' ? 'smallserial' : 'serial';
$hr_column_params->{default} = '';
}
return $self->SUPER::type($hr_column_params);
} ## end sub type
sub types {
return {
abstime => 'abstime',
aclitem => 'aclitem',
bigint => 'bigint',
bigserial => 'bigserial',
bit => 'bit',
var_bit => 'bit varying',
bool => 'boolean',
box => 'box',
bytea => 'bytea',
char => '"char"',
character => 'character',
varchar => 'character varying',
cid => 'cid',
cidr => 'cidr',
circle => 'circle',
date => 'date',
daterange => 'daterange',
decimal => 'decimal',
double_precision => 'double precision',
float => 'float',
gtsvector => 'gtsvector',
inet => 'inet',
int2vector => 'int2vector',
int4range => 'int4range',
int8range => 'int8range',
integer => 'integer',
interval => 'interval',
json => 'json',
line => 'line',
lseg => 'lseg',
macaddr => 'macaddr',
money => 'money',
name => 'name',
numeric => 'numeric',
numrange => 'numrange',
oid => 'oid',
oidvector => 'oidvector',
path => 'path',
pg_node_tree => 'pg_node_tree',
point => 'point',
polygon => 'polygon',
real => 'real',
refcursor => 'refcursor',
regclass => 'regclass',
regconfig => 'regconfig',
regdictionary => 'regdictionary',
regoper => 'regoper',
regoperator => 'regoperator',
regproc => 'regproc',
regprocedure => 'regprocedure',
regtype => 'regtype',
reltime => 'reltime',
serial => 'serial',
smallint => 'smallint',
smallserial => 'smallserial',
smgr => 'smgr',
text => 'text',
tid => 'tid',
timestamp => 'timestamp without time zone',
timestamp_tz => 'timestamp with time zone',
time => 'time without time zone',
time_tz => 'time with time zone',
tinterval => 'tinterval',
tsquery => 'tsquery',
tsrange => 'tsrange',
tstzrange => 'tstzrange',
tsvector => 'tsvector',
txid_snapshot => 'txid_snapshot',
uuid => 'uuid',
xid => 'xid',
xml => 'xml',
};
} ## end sub types
sub select_get_table {
return q~SELECT t.table_name AS table_name FROM information_schema.tables t WHERE t.table_type = 'BASE TABLE' AND t.table_schema = ? AND t.table_name = ?~;
}
sub convert_defaults {
my ( $self, $params ) = @_;
$params->{default} ? $params->{default} =~ s/^'(.*)'$/$1/ : undef;
if ( $params->{default} && $params->{type} eq 'bit' ) {
return qq~$params->{default}::bit~;
}
return $params->{default};
} ## end sub convert_defaults
sub parse_default {
my ( $self, $default_value ) = @_;
return $1 * 1 if ( $default_value =~ m/\w+\s*(?:\((\d+)\))::(.*)(?:\;|\s)/ );
return $default_value;
}
sub can_create_empty_table { return 1 }
sub colums_information {
my ( $self, $ar_raw_data ) = @_;
return [] if scalar @{$ar_raw_data} == 0;
my $table_row = shift @{$ar_raw_data};
$table_row->{sql} =~ s/^.*(CREATE|create) .*\(//g;
my $columns = [];
for ( split m/,/, $table_row->{sql} ) {
s/^\s*(.*)\s*$/$1/g;
my $rx_not_null = 'NOT NULL';
my $rx_primary_key = 'PRIMARY KEY';
my $rx_default = 'SERIAL|DEFAULT';
my $rx_column_values = qr/($rx_not_null)*\s($rx_primary_key)*.*($rx_default \w{1,})*/;
my @column = m/^(\w+)\s([[:upper:]]+)(\(\d*\))*\s$rx_column_values$/;
next if scalar @column == 0;
$column[$I_CONST_LENGTH_VALUE] =~ s/([\(\)])//g if $column[$I_CONST_LENGTH_VALUE];
push @{$columns},
{
name => $column[0],
type => $column[1],
( $column[$I_CONST_LENGTH_VALUE] ? ( length => $column[$I_CONST_LENGTH_VALUE] ) : () ),
( $column[$I_CONST_NOT_NULL_VALUE] ? ( not_null => $column[$I_CONST_NOT_NULL_VALUE] ) : () ),
( $column[$I_CONST_PRIMARY_KEY_VALUE] ? ( primary_key => $column[$I_CONST_PRIMARY_KEY_VALUE] ) : () ),
( $column[$I_CONST_DEFAULT_VALUE] ? ( default => $column[$I_CONST_DEFAULT_VALUE] ) : () ),
};
} ## end for ( split m/,/, $table_row...)
return $columns;
} ## end sub colums_information
sub index_information {
my ( $self, $ar_raw_data ) = @_;
my @mapped = ();
for ( @{$ar_raw_data} ) {
next if !$_->{sql};
my ($s_columns) = $_->{sql} =~ m/\((.*)\)$/;
my @columns = split m/,/, $s_columns;
s/^\s+|\s+$//g for @columns;
push @mapped, { name => $_->{name}, table => $_->{tbl_name}, columns => \@columns };
} ## end for ( @{$ar_raw_data} )
return \@mapped;
} ## end sub index_information
sub view_information {
my ( $self, $ar_raw_data ) = @_;
return [] unless $ar_raw_data;
return [ map { { name => $_->{name}, sql => $_->{sql} } } @{$ar_raw_data} ];
}
sub constraints {
return shift->_get_value( 'constraints', 'Geoffrey::Converter::Pg::Constraints', 1 );
}
sub index {
my ( $self, $new_value ) = @_;
$self->{index} = $new_value if defined $new_value;
return $self->_get_value( 'index', 'Geoffrey::Converter::Pg::Index' );
}
sub table {
return shift->_get_value( 'table', 'Geoffrey::Converter::Pg::Tables' );
}
sub view {
return shift->_get_value( 'view', 'Geoffrey::Converter::Pg::View', 1 );
}
sub foreign_key {
my ( $self, $new_value ) = @_;
$self->{foreign_key} = $new_value if defined $new_value;
return $self->_get_value( 'foreign_key', 'Geoffrey::Converter::Pg::ForeignKey', 1 );
}
sub trigger {
return shift->_get_value( 'trigger', 'Geoffrey::Converter::Pg::Trigger', 1 );
}
sub primary_key {
return shift->_get_value( 'primary_key', 'Geoffrey::Converter::Pg::PrimaryKey', 1 );
}
sub unique {
return shift->_get_value( 'unique', 'Geoffrey::Converter::Pg::UniqueIndex', 1 );
}
sub sequence {
return shift->_get_value( 'sequence', 'Geoffrey::Converter::Pg::Sequence', 1 );
}
sub _get_value {
my ( $self, $key, $s_package_name, $b_ignore_require ) = @_;
$self->{$key} //= $self->_set_value( $key, $s_package_name, $b_ignore_require );
return $self->{$key};
}
sub _set_value {
my ( $self, $key, $s_package_name, $b_ignore_require ) = @_;
require Geoffrey::Utils;
$self->{$key} = $b_ignore_require ? $s_package_name->new(@_) : Geoffrey::Utils::obj_from_name($s_package_name);
return $self->{$key};
} ## end sub _set_value
1; # End of Geoffrey::Converter::Pg
__END__
=pod
=head1 NAME
Geoffrey::Converter::Pg - PostgreSQL converter for Geoffrey
=head1 VERSION
Version 0.000204
=head1 DESCRIPTION
=head1 SYNOPSIS
=head1 SUBROUTINES/METHODS
=head2 new
=head2 can_create_empty_table
=head2 constraints
Create an instance of Geoffrey::Converter::Pg::Constraints and returns the object.
=head2 foreign_key
Create an instance of Geoffrey::Converter::Pg::ForeignKey and returns the object.
=head2 index
Create an instance of Geoffrey::Converter::Pg::Index and returns the object.
=head2 primary_key
Create an instance of Geoffrey::Converter::Pg::PrimaryKey and returns the object.
=head2 table
Create an instance of Geoffrey::Converter::Pg::Tables and returns the object.
=head2 trigger
Create an instance of Geoffrey::Converter::Pg::Trigger and returns the object.
=head2 unique
Create an instance of Geoffrey::Converter::Pg::UniqueIndex and returns the object.
=head2 view
Create an instance of Geoffrey::Converter::Pg::View and returns the object.
=head2 sequence
Create an instance of Geoffrey::Converter::Pg::Sequence and returns the object.
=head2 view_information
=head2 colums_information
=head2 convert_defaults
=head2 defaults
=head2 index_information
=head2 select_get_table
=head2 types
=head2 parse_default
=head2 type
=head1 DIAGNOSTICS
=head1 CONFIGURATION AND ENVIRONMENT
=head1 DEPENDENCIES
=over 4
=item * Inherits
L<Geoffrey::Role::Converter|Geoffrey::Role::Converter>
=item * Internal usage
L<Readonly|Readonly>, L<Geoffrey::Role::ConverterType|Geoffrey::Role::ConverterType>
=back
=head1 INCOMPATIBILITIES
=head1 BUGS AND LIMITATIONS
Please report any bugs or feature requests to C<bug-Geoffrey at rt.cpan.org>, or through
the web interface at L<http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Geoffrey>. I will be notified, and then you'll
automatically be notified of progress on your bug as I make changes.
You can find documentation for this module with the perldoc command.
perldoc Geoffrey::Converter::Pg
You can also look for information at:
=over 4
=item * RT: CPAN's request tracker (report bugs here)
L<http://rt.cpan.org/NoAuth/Bugs.html?Dist=Geoffrey>
=item * AnnoCPAN: Annotated CPAN documentation
L<http://annocpan.org/dist/Geoffrey>
=item * CPAN Ratings
L<http://cpanratings.perl.org/d/Geoffrey>
=item * Search CPAN
L<http://search.cpan.org/dist/Geoffrey/>
=back
=head1 AUTHOR
Mario Zieschang, C<< <mziescha at cpan.org> >>
=head1 LICENSE AND COPYRIGHT
Copyright 2015 Mario Zieschang.
This program is free software; you can redistribute it and/or modify it
under the terms of the the Artistic License (2.0). You may obtain a
copy of the full license at:
L<http://www.perlfoundation.org/artistic_license_2_0>
Any use, modification, and distribution of the Standard or Modified
Versions is governed by this Artistic License. By using, modifying or
distributing the Package, you accept this license. Do not use, modify,
or distribute the Package, if you do not accept this license.
If your Modified Version has been derived from a Modified Version made
by someone other than you, you are nevertheless required to ensure that
your Modified Version complies with the requirements of this license.
This license does not grant you the right to use any trademark, service
mark, trade name, or logo of the Copyright Holder.
This license includes the non-exclusive, worldwide, free-of-charge
patent license to make, have made, use, offer to sell, sell, import and
otherwise transfer the Package with respect to any patent claims
licensable by the Copyright Holder that are necessarily infringed by the
Package. If you institute patent litigation (including a cross-claim or
counterclaim) against any party alleging that the Package constitutes
direct or contributory patent infringement, then this Artistic License
to you shall terminate on the date that such litigation is filed.
Disclaimer of Warranty: THE PACKAGE IS PROVIDED BY THE COPYRIGHT HOLDER
AND CONTRIBUTORS "AS IS' AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES.
THE IMPLIED WARRANTIES OF MERCHANT ABILITY, FITNESS FOR A PARTICULAR
PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED TO THE EXTENT PERMITTED BY
YOUR LOCAL LAW. UNLESS REQUIRED BY LAW, NO COPYRIGHT HOLDER OR
CONTRIBUTOR WILL BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES ARISING IN ANY WAY OUT OF THE USE OF THE PACKAGE,
EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=cut