use strict;
use warnings;
use base 'DBIx::Class::Schema::Loader::DBI';
+use mro 'c3';
use Carp::Clan qw/^DBIx::Class/;
-use Class::C3;
+use List::Util qw/any first/;
+use Try::Tiny;
+use Scalar::Util 'blessed';
+use DBIx::Class::Schema::Loader::Utils qw/sigwarn_silencer/;
+use namespace::clean;
+use DBIx::Class::Schema::Loader::Table ();
-our $VERSION = '0.06001';
+our $VERSION = '0.07047';
=head1 NAME
DBIx::Class::Schema::Loader::DBI::mysql - DBIx::Class::Schema::Loader::DBI mysql Implementation.
-=head1 SYNOPSIS
+=head1 DESCRIPTION
- package My::Schema;
- use base qw/DBIx::Class::Schema::Loader/;
+See L<DBIx::Class::Schema::Loader> and L<DBIx::Class::Schema::Loader::Base>.
- __PACKAGE__->loader_options( debug => 1 );
+=cut
- 1;
+sub _setup {
+ my $self = shift;
-=head1 DESCRIPTION
+ $self->schema->storage->sql_maker->quote_char("`");
+ $self->schema->storage->sql_maker->name_sep(".");
-See L<DBIx::Class::Schema::Loader::Base>.
+ $self->next::method(@_);
-=cut
+ if (not defined $self->preserve_case) {
+ $self->preserve_case(0);
+ }
+
+ if ($self->db_schema && $self->db_schema->[0] eq '%') {
+ my @schemas = try {
+ $self->_show_databases;
+ }
+ catch {
+ croak "no SHOW DATABASES privileges: $_";
+ };
-sub _tables_list {
- my ($self, $opts) = @_;
+ @schemas = grep {
+ my $schema = $_;
+ not any { lc($schema) eq lc($_) } $self->_system_schemas
+ } @schemas;
- return $self->next::method($opts, undef, undef);
+ $self->db_schema(\@schemas);
+ }
}
-sub _table_fk_info {
- my ($self, $table) = @_;
+sub _show_databases {
+ my $self = shift;
- my $dbh = $self->schema->storage->dbh;
+ return map $_->[0], @{ $self->dbh->selectall_arrayref('SHOW DATABASES') };
+}
- local $dbh->{RaiseError} = 0;
- local $dbh->{PrintError} = 0;
+sub _system_schemas {
+ my $self = shift;
- my $table_def_ref = eval { $dbh->selectrow_arrayref("SHOW CREATE TABLE `$table`") };
+ return ($self->next::method(@_), 'mysql');
+}
+
+sub _table_fk_info {
+ my ($self, $table) = @_;
+
+ my $table_def_ref = eval { $self->dbh->selectrow_arrayref("SHOW CREATE TABLE ".$table->sql_name) };
my $table_def = $table_def_ref->[1];
return [] if not $table_def;
- my $qt = qr/["`]/;
+ my $qt = qr/["`]/;
+ my $nqt = qr/[^"`]/;
my (@reldata) = ($table_def =~
- /CONSTRAINT $qt.*$qt FOREIGN KEY \($qt(.*)$qt\) REFERENCES $qt(.*)$qt \($qt(.*)$qt\)/ig
+ /CONSTRAINT ${qt}${nqt}+${qt} FOREIGN KEY \($qt(.*)$qt\) REFERENCES (?:$qt($nqt+)$qt\.)?$qt($nqt+)$qt \($qt(.+)$qt\)\s*(.*)/ig
);
my @rels;
while (scalar @reldata > 0) {
- my $cols = shift @reldata;
- my $f_table = shift @reldata;
- my $f_cols = shift @reldata;
+ my ($cols, $f_schema, $f_table, $f_cols, $rest) = splice @reldata, 0, 5;
+
+ my @cols = map { s/$qt//g; $self->_lc($_) }
+ split(/$qt?\s*$qt?,$qt?\s*$qt?/, $cols);
+
+ my @f_cols = map { s/$qt//g; $self->_lc($_) }
+ split(/$qt?\s*$qt?,$qt?\s*$qt?/, $f_cols);
+
+ # Match case of remote schema to that in SHOW DATABASES, if it's there
+ # and we have permissions to run SHOW DATABASES.
+ if ($f_schema) {
+ my $matched = first {
+ lc($_) eq lc($f_schema)
+ } try { $self->_show_databases };
+
+ $f_schema = $matched if $matched;
+ }
+
+ my $remote_table = do {
+ # Get ->tables_list to return tables from the remote schema, in case it is not in the db_schema list.
+ local $self->{db_schema} = [ $f_schema ] if $f_schema;
+
+ first {
+ lc($_->name) eq lc($f_table)
+ && ((not $f_schema) || lc($_->schema) eq lc($f_schema))
+ } $self->_tables_list;
+ };
+
+ # The table may not be in any database, or it may not have been found by the previous code block for whatever reason.
+ if (not $remote_table) {
+ my $remote_schema = $f_schema || $self->db_schema && @{ $self->db_schema } == 1 && $self->db_schema->[0];
+
+ $remote_table = DBIx::Class::Schema::Loader::Table->new(
+ loader => $self,
+ name => $f_table,
+ ($remote_schema ? (
+ schema => $remote_schema,
+ ) : ()),
+ );
+ }
- my @cols = map { s/(?: \Q$self->{_quoter}\E | $qt )//x; lc $_ }
- split(/\s*,\s*/, $cols);
+ my %attrs;
- my @f_cols = map { s/(?: \Q$self->{_quoter}\E | $qt )//x; lc $_ }
- split(/\s*,\s*/, $f_cols);
+ if ($rest) {
+ my @on_clauses = $rest =~ /(ON DELETE|ON UPDATE) (RESTRICT|CASCADE|SET NULL|NO ACTION) ?/ig;
+
+ while (my ($clause, $value) = splice @on_clauses, 0, 2) {
+ $clause = lc $clause;
+ $clause =~ s/ /_/;
+
+ $value = uc $value;
+
+ $attrs{$clause} = $value;
+ }
+ }
+
+# The default behavior is RESTRICT. Specifying RESTRICT explicitly just removes
+# that ON clause from the SHOW CREATE TABLE output. For this reason, even
+# though the default for these clauses everywhere else in Schema::Loader is
+# CASCADE, we change the default here to RESTRICT in order to reproduce the
+# schema faithfully.
+ $attrs{on_delete} ||= 'RESTRICT';
+ $attrs{on_update} ||= 'RESTRICT';
+
+# MySQL does not have a DEFERRABLE attribute, but there is a way to defer FKs.
+ $attrs{is_deferrable} = 1;
push(@rels, {
local_columns => \@cols,
remote_columns => \@f_cols,
- remote_table => $f_table
+ remote_table => $remote_table,
+ attrs => \%attrs,
});
}
sub _mysql_table_get_keys {
my ($self, $table) = @_;
- if(!exists($self->{_cache}->{_mysql_keys}->{$table})) {
+ if(!exists($self->{_cache}->{_mysql_keys}->{$table->sql_name})) {
my %keydata;
- my $dbh = $self->schema->storage->dbh;
- my $sth = $dbh->prepare('SHOW INDEX FROM '.$self->_table_as_sql($table));
+ my $sth = $self->dbh->prepare('SHOW INDEX FROM '.$table->sql_name);
$sth->execute;
while(my $row = $sth->fetchrow_hashref) {
next if $row->{Non_unique};
push(@{$keydata{$row->{Key_name}}},
- [ $row->{Seq_in_index}, lc $row->{Column_name} ]
+ [ $row->{Seq_in_index}, $self->_lc($row->{Column_name}) ]
);
}
foreach my $keyname (keys %keydata) {
@{$keydata{$keyname}};
$keydata{$keyname} = \@ordered_cols;
}
- $self->{_cache}->{_mysql_keys}->{$table} = \%keydata;
+ $self->{_cache}->{_mysql_keys}->{$table->sql_name} = \%keydata;
}
- return $self->{_cache}->{_mysql_keys}->{$table};
+ return $self->{_cache}->{_mysql_keys}->{$table->sql_name};
}
sub _table_pk_info {
my @uniqs;
my $keydata = $self->_mysql_table_get_keys($table);
- foreach my $keyname (keys %$keydata) {
+ foreach my $keyname (sort keys %$keydata) {
next if $keyname eq 'PRIMARY';
push(@uniqs, [ $keyname => $keydata->{$keyname} ]);
}
my $result = $self->next::method(@_);
- my $dbh = $self->schema->storage->dbh;
-
while (my ($col, $info) = each %$result) {
- delete $info->{size}
- unless $info->{data_type} =~ /^(?: (?:var)?(?:char(?:acter)?|binary) | bit | year)\z/ix;
-
if ($info->{data_type} eq 'int') {
$info->{data_type} = 'integer';
}
elsif ($info->{data_type} eq 'double') {
$info->{data_type} = 'double precision';
}
+ my $data_type = $info->{data_type};
+
+ delete $info->{size} if $data_type !~ /^(?: (?:var)?(?:char(?:acter)?|binary) | bit | year)\z/ix;
- my ($precision, $scale, $column_type) = eval { $dbh->selectrow_array(<<'EOF', {}, lc $table, lc $col) };
-SELECT numeric_precision, numeric_scale, column_type
+ # information_schema is available in 5.0+
+ my ($precision, $scale, $column_type, $default) = eval { $self->dbh->selectrow_array(<<'EOF', {}, $table->name, lc($col)) };
+SELECT numeric_precision, numeric_scale, column_type, column_default
FROM information_schema.columns
-WHERE lower(table_name) = ? AND lower(column_name) = ?
+WHERE table_schema = schema() AND table_name = ? AND lower(column_name) = ?
EOF
+ my $has_information_schema = not $@;
+
$column_type = '' if not defined $column_type;
- if ($info->{data_type} eq 'bit' && (not exists $info->{size})) {
+ if ($data_type eq 'bit' && (not exists $info->{size})) {
$info->{size} = $precision if defined $precision;
}
- elsif ($info->{data_type} =~ /^(?:float|double precision|decimal)\z/) {
+ elsif ($data_type =~ /^(?:float|double precision|decimal)\z/i) {
if (defined $precision && defined $scale) {
if ($precision == 10 && $scale == 0) {
delete $info->{size};
}
}
}
- elsif ($info->{data_type} eq 'year') {
+ elsif ($data_type eq 'year') {
if ($column_type =~ /\(2\)/) {
$info->{size} = 2;
}
delete $info->{size};
}
}
+ elsif ($data_type =~ /^(?:date(?:time)?|timestamp)\z/) {
+ if (not (defined $self->datetime_undef_if_invalid && $self->datetime_undef_if_invalid == 0)) {
+ $info->{datetime_undef_if_invalid} = 1;
+ }
+ }
+ elsif ($data_type =~ /^(?:enum|set)\z/ && $has_information_schema
+ && $column_type =~ /^(?:enum|set)\(/) {
+
+ delete $info->{extra}{list};
+
+ while ($column_type =~ /'((?:[^']* (?:''|\\')* [^']*)* [^\\']?)',?/xg) {
+ my $el = $1;
+ $el =~ s/''/'/g;
+ push @{ $info->{extra}{list} }, $el;
+ }
+ }
+
+ # Sometimes apparently there's a bug where default_value gets set to ''
+ # for things that don't actually have or support that default (like ints.)
+ if (exists $info->{default_value} && $info->{default_value} eq '') {
+ if ($has_information_schema) {
+ if (not defined $default) {
+ delete $info->{default_value};
+ }
+ }
+ else { # just check if it's a char/text type, otherwise remove
+ delete $info->{default_value} unless $data_type =~ /char|text/i;
+ }
+ }
}
return $result;
if ($dbi_info->{mysql_values}) {
$extra_info{extra}{list} = $dbi_info->{mysql_values};
}
- if ( $dbi_info->{COLUMN_DEF} =~ /^CURRENT_TIMESTAMP\z/i
- && $dbi_info->{mysql_type_name} =~ /^TIMESTAMP\z/i) {
+ if ((not blessed $dbi_info) # isa $sth
+ && lc($dbi_info->{COLUMN_DEF}) eq 'current_timestamp'
+ && lc($dbi_info->{mysql_type_name}) eq 'timestamp') {
- $extra_info{default_value} = \'CURRENT_TIMESTAMP';
+ my $current_timestamp = 'current_timestamp';
+ $extra_info{default_value} = \$current_timestamp;
}
return \%extra_info;
}
+sub _dbh_column_info {
+ my $self = shift;
+
+ local $SIG{__WARN__} = sigwarn_silencer(
+ qr/^column_info: unrecognized column type/
+ );
+
+ $self->next::method(@_);
+}
+
+sub _table_comment {
+ my ( $self, $table ) = @_;
+ my $comment = $self->next::method($table);
+ if (not $comment) {
+ ($comment) = try { $self->schema->storage->dbh->selectrow_array(
+ qq{SELECT table_comment
+ FROM information_schema.tables
+ WHERE table_schema = schema()
+ AND table_name = ?
+ }, undef, $table->name);
+ };
+ # InnoDB likes to auto-append crap.
+ if (not $comment) {
+ # Do nothing.
+ }
+ elsif ($comment =~ /^InnoDB free:/) {
+ $comment = undef;
+ }
+ else {
+ $comment =~ s/; InnoDB.*//;
+ }
+ }
+ return $comment;
+}
+
+sub _column_comment {
+ my ( $self, $table, $column_number, $column_name ) = @_;
+ my $comment = $self->next::method($table, $column_number, $column_name);
+ if (not $comment) {
+ ($comment) = try { $self->schema->storage->dbh->selectrow_array(
+ qq{SELECT column_comment
+ FROM information_schema.columns
+ WHERE table_schema = schema()
+ AND table_name = ?
+ AND lower(column_name) = ?
+ }, undef, $table->name, lc($column_name));
+ };
+ }
+ return $comment;
+}
+
+sub _view_definition {
+ my ($self, $view) = @_;
+
+ return scalar $self->schema->storage->dbh->selectrow_array(
+ q{SELECT view_definition
+ FROM information_schema.views
+ WHERE table_schema = schema()
+ AND table_name = ?
+ }, undef, $view->name,
+ );
+}
+
=head1 SEE ALSO
L<DBIx::Class::Schema::Loader>, L<DBIx::Class::Schema::Loader::Base>,
L<DBIx::Class::Schema::Loader::DBI>
-=head1 AUTHOR
+=head1 AUTHORS
-See L<DBIx::Class::Schema::Loader/AUTHOR> and L<DBIx::Class::Schema::Loader/CONTRIBUTORS>.
+See L<DBIx::Class::Schema::Loader/AUTHORS>.
=head1 LICENSE
projects / dbsrgits/DBIx-Class-Schema-Loader.git / blobdiff