X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FDBIx%2FClass%2FSchema%2FLoader%2FDBI%2FPg.pm;h=0745bd96c703a28c10848eeafc1509ac4059c0b2;hb=22f91663244e30dd4bcae10e54a761113f3a587c;hp=a2ddb280f48b03781e114d2016055984cd813ff8;hpb=8f9d7ce50bb37fdc2a823b9c79b18fb32ee5f068;p=dbsrgits%2FDBIx-Class-Schema-Loader.git diff --git a/lib/DBIx/Class/Schema/Loader/DBI/Pg.pm b/lib/DBIx/Class/Schema/Loader/DBI/Pg.pm index a2ddb28..0745bd9 100644 --- a/lib/DBIx/Class/Schema/Loader/DBI/Pg.pm +++ b/lib/DBIx/Class/Schema/Loader/DBI/Pg.pm @@ -2,28 +2,22 @@ package DBIx::Class::Schema::Loader::DBI::Pg; use strict; use warnings; -use base 'DBIx::Class::Schema::Loader::DBI'; -use Class::C3; +use base qw/ + DBIx::Class::Schema::Loader::DBI::Component::QuotedDefault + DBIx::Class::Schema::Loader::DBI +/; +use mro 'c3'; + +our $VERSION = '0.07019'; =head1 NAME DBIx::Class::Schema::Loader::DBI::Pg - DBIx::Class::Schema::Loader::DBI PostgreSQL Implementation. -=head1 SYNOPSIS - - package My::Schema; - use base qw/DBIx::Class::Schema::Loader/; - - __PACKAGE__->loader_options( - relationships => 1, - ); - - 1; - =head1 DESCRIPTION -See L. +See L and L. =cut @@ -31,25 +25,43 @@ sub _setup { my $self = shift; $self->next::method(@_); - $self->{db_schema} ||= 'public'; + + $self->{db_schema} ||= ['public']; + + if (not defined $self->preserve_case) { + $self->preserve_case(0); + } + elsif ($self->preserve_case) { + $self->schema->storage->sql_maker->quote_char('"'); + $self->schema->storage->sql_maker->name_sep('.'); + } +} + +sub _system_schemas { + my $self = shift; + + return ($self->next::method(@_), 'pg_catalog'); } sub _table_uniq_info { my ($self, $table) = @_; + # Use the default support if available + return $self->next::method($table) + if $DBD::Pg::VERSION >= 1.50; + my @uniqs; - my $dbh = $self->schema->storage->dbh; # Most of the SQL here is mostly based on # Rose::DB::Object::Metadata::Auto::Pg, after some prodding from # John Siracusa to use his superior SQL code :) - my $attr_sth = $self->{_cache}->{pg_attr_sth} ||= $dbh->prepare( + my $attr_sth = $self->{_cache}->{pg_attr_sth} ||= $self->dbh->prepare( q{SELECT attname FROM pg_catalog.pg_attribute WHERE attrelid = ? AND attnum = ?} ); - my $uniq_sth = $self->{_cache}->{pg_uniq_sth} ||= $dbh->prepare( + my $uniq_sth = $self->{_cache}->{pg_uniq_sth} ||= $self->dbh->prepare( q{SELECT x.indrelid, i.relname, x.indkey FROM pg_catalog.pg_index x @@ -66,7 +78,7 @@ sub _table_uniq_info { c.relname = ?} ); - $uniq_sth->execute($self->db_schema, $table); + $uniq_sth->execute($table->schema, $table->name); while(my $row = $uniq_sth->fetchrow_arrayref) { my ($tableid, $indexname, $col_nums) = @$row; $col_nums =~ s/^\s+//; @@ -76,7 +88,7 @@ sub _table_uniq_info { foreach (@col_nums) { $attr_sth->execute($tableid, $_); my $name_aref = $attr_sth->fetchrow_arrayref; - push(@col_names, $name_aref->[0]) if $name_aref; + push(@col_names, $self->_lc($name_aref->[0])) if $name_aref; } if(!@col_names) { @@ -90,11 +102,207 @@ sub _table_uniq_info { return \@uniqs; } +sub _table_comment { + my $self = shift; + my ($table) = @_; + + my $table_comment = $self->next::method(@_); + + return $table_comment if $table_comment; + + ($table_comment) = $self->dbh->selectrow_array(<<'EOF', {}, $table->name, $table->schema); +SELECT obj_description(oid) +FROM pg_class +WHERE relname=? AND relnamespace=(SELECT oid FROM pg_namespace WHERE nspname=?) +EOF + + return $table_comment +} + + +sub _column_comment { + my $self = shift; + my ($table, $column_number, $column_name) = @_; + + my $column_comment = $self->next::method(@_); + + return $column_comment if $column_comment; + + my ($table_oid) = $self->dbh->selectrow_array(<<'EOF', {}, $table->name, $table->schema); +SELECT oid +FROM pg_class +WHERE relname=? AND relnamespace=(SELECT oid FROM pg_namespace WHERE nspname=?) +EOF + + return $self->dbh->selectrow_array('SELECT col_description(?,?)', {}, $table_oid, $column_number); +} + +# Make sure data_type's that don't need it don't have a 'size' column_info, and +# set the correct precision for datetime and varbit types. +sub _columns_info_for { + my $self = shift; + my ($table) = @_; + + my $result = $self->next::method(@_); + + while (my ($col, $info) = each %$result) { + my $data_type = $info->{data_type}; + + # these types are fixed size + # XXX should this be a negative match? + if ($data_type =~ +/^(?:bigint|int8|bigserial|serial8|bool(?:ean)?|box|bytea|cidr|circle|date|double precision|float8|inet|integer|int|int4|line|lseg|macaddr|money|path|point|polygon|real|float4|smallint|int2|serial|serial4|text)\z/i) { + delete $info->{size}; + } +# for datetime types, check if it has a precision or not + elsif ($data_type =~ /^(?:interval|time|timestamp)\b/i) { + if (lc($data_type) eq 'timestamp without time zone') { + $info->{data_type} = 'timestamp'; + } + elsif (lc($data_type) eq 'time without time zone') { + $info->{data_type} = 'time'; + } + + my ($precision) = $self->schema->storage->dbh + ->selectrow_array(<name, $col); +SELECT datetime_precision +FROM information_schema.columns +WHERE table_name = ? and column_name = ? +EOF + + if ($data_type =~ /^time\b/i) { + if ((not $precision) || $precision !~ /^\d/) { + delete $info->{size}; + } + else { + my ($integer_datetimes) = $self->dbh + ->selectrow_array('show integer_datetimes'); + + my $max_precision = + $integer_datetimes =~ /^on\z/i ? 6 : 10; + + if ($precision == $max_precision) { + delete $info->{size}; + } + else { + $info->{size} = $precision; + } + } + } + elsif ((not $precision) || $precision !~ /^\d/ || $precision == 6) { + delete $info->{size}; + } + else { + $info->{size} = $precision; + } + } + elsif ($data_type =~ /^(?:bit(?: varying)?|varbit)\z/i) { + $info->{data_type} = 'varbit' if $data_type =~ /var/i; + + my ($precision) = $self->dbh->selectrow_array(<name, $col); +SELECT character_maximum_length +FROM information_schema.columns +WHERE table_name = ? and column_name = ? +EOF + + $info->{size} = $precision if $precision; + + $info->{size} = 1 if (not $precision) && lc($data_type) eq 'bit'; + } + elsif ($data_type =~ /^(?:numeric|decimal)\z/i && (my $size = $info->{size})) { + $size =~ s/\s*//g; + + my ($scale, $precision) = split /,/, $size; + + $info->{size} = [ $precision, $scale ]; + } + elsif (lc($data_type) eq 'character varying') { + $info->{data_type} = 'varchar'; + + if (not $info->{size}) { + $info->{data_type} = 'text'; + $info->{original}{data_type} = 'varchar'; + } + } + elsif (lc($data_type) eq 'character') { + $info->{data_type} = 'char'; + } + else { + my ($typetype) = $self->schema->storage->dbh + ->selectrow_array(<dbh + ->selectall_arrayref(<{data_type}); +SELECT e.enumlabel +FROM pg_catalog.pg_enum e +JOIN pg_catalog.pg_type t ON t.oid = e.enumtypid +WHERE t.typname = ? +EOF + + $info->{extra}{list} = [ map { $_->[0] } @$typevalues ]; + + # Store its original name in extra for SQLT to pick up. + $info->{extra}{custom_type_name} = $info->{data_type}; + + $info->{data_type} = 'enum'; + + delete $info->{size}; + } + } + +# process SERIAL columns + if (ref($info->{default_value}) eq 'SCALAR' + && ${ $info->{default_value} } =~ /\bnextval\('([^:]+)'/i) { + $info->{is_auto_increment} = 1; + $info->{sequence} = $1; + delete $info->{default_value}; + } + +# alias now() to current_timestamp for deploying to other DBs + if ((eval { lc ${ $info->{default_value} } }||'') eq 'now()') { + # do not use a ref to a constant, that breaks Data::Dump output + ${$info->{default_value}} = 'current_timestamp'; + + my $now = 'now()'; + $info->{original}{default_value} = \$now; + } + +# detect 0/1 for booleans and rewrite + if ($data_type =~ /^bool/i && exists $info->{default_value}) { + if ($info->{default_value} eq '0') { + my $false = 'false'; + $info->{default_value} = \$false; + } + elsif ($info->{default_value} eq '1') { + my $true = 'true'; + $info->{default_value} = \$true; + } + } + } + + return $result; +} + =head1 SEE ALSO L, L, L +=head1 AUTHOR + +See L and L. + +=head1 LICENSE + +This library is free software; you can redistribute it and/or modify it under +the same terms as Perl itself. + =cut 1;