use Carp::Clan qw/^DBIx::Class/;
use Class::C3;
-our $VERSION = '0.05003';
+__PACKAGE__->mk_group_accessors('simple', qw/
+ case_sensitive_collation
+/);
+
+our $VERSION = '0.06000';
=head1 NAME
See L<DBIx::Class::Schema::Loader> and L<DBIx::Class::Schema::Loader::Base> for
usage information.
+=head1 CASE SENSITIVITY
+
+Most MSSQL databases use C<CI> (case-insensitive) collation, for this reason
+generated column names are lower-cased as this makes them easier to work with
+in L<DBIx::Class>.
+
+We attempt to detect the database collation at startup, and set the column
+lowercasing behavior accordingly, as lower-cased column names do not work on
+case-sensitive databases.
+
+To manually set or unset case-sensitive mode, put:
+
+ case_sensitive_collation => 1
+
+in your Loader options.
+
=cut
-sub _tables_list {
+sub _is_case_sensitive {
my $self = shift;
+ return $self->case_sensitive_collation ? 1 : 0;
+}
+
+sub _setup {
+ my $self = shift;
+
+ $self->next::method;
+
+ return if defined $self->case_sensitive_collation;
+
+ my $dbh = $self->schema->storage->dbh;
+
+ # We use the sys.databases query for the general case, and fallback to
+ # databasepropertyex() if for some reason sys.databases is not available,
+ # which does not work over DBD::ODBC with unixODBC+FreeTDS.
+ #
+ # XXX why does databasepropertyex() not work over DBD::ODBC ?
+ #
+ # more on collations here: http://msdn.microsoft.com/en-us/library/ms143515.aspx
+ my ($collation_name) =
+ eval { $dbh->selectrow_array('SELECT collation_name FROM sys.databases WHERE name = DB_NAME()') }
+ || eval { $dbh->selectrow_array("SELECT CAST(databasepropertyex(DB_NAME(), 'Collation') AS VARCHAR)") };
+
+ if (not $collation_name) {
+ warn <<'EOF';
+
+WARNING: MSSQL Collation detection failed. Defaulting to case-insensitive mode.
+Override the 'case_sensitive_collation' attribute in your Loader options if
+needed.
+EOF
+ $self->case_sensitive_collation(0);
+ return;
+ }
+
+ my $case_sensitive = $collation_name =~ /_(?:CS|BIN2?)(?:_|\z)/;
+
+ $self->case_sensitive_collation($case_sensitive ? 1 : 0);
+}
+
+sub _lc {
+ my ($self, $name) = @_;
+
+ return $self->case_sensitive_collation ? $name : lc($name);
+}
+
+sub _tables_list {
+ my ($self, $opts) = @_;
+
my $dbh = $self->schema->storage->dbh;
my $sth = $dbh->prepare(<<'EOF');
SELECT t.table_name
-FROM information_schema.tables t
-WHERE t.table_schema = ?
+FROM INFORMATION_SCHEMA.TABLES t
+WHERE lower(t.table_schema) = ?
EOF
- $sth->execute($self->db_schema);
+ $sth->execute(lc $self->db_schema);
- my @tables = map lc $_, map @$_, @{ $sth->fetchall_arrayref };
+ my @tables = map @$_, @{ $sth->fetchall_arrayref };
- return $self->_filter_tables(@tables);
+ return $self->_filter_tables(\@tables, $opts);
}
sub _table_pk_info {
my @keydata;
while (my $row = $sth->fetchrow_hashref) {
- push @keydata, lc $row->{COLUMN_NAME};
+ push @keydata, $self->_lc($row->{COLUMN_NAME});
}
return \@keydata;
sub _table_fk_info {
my ($self, $table) = @_;
- my ($local_cols, $remote_cols, $remote_table, @rels);
+ my ($local_cols, $remote_cols, $remote_table, @rels, $sth);
my $dbh = $self->schema->storage->dbh;
- my $sth = $dbh->prepare(qq{sp_fkeys \@FKTABLE_NAME = '$table'});
- $sth->execute;
+ eval {
+ $sth = $dbh->prepare(qq{sp_fkeys \@fktable_name = '$table'});
+ $sth->execute;
+ };
- while (my $row = $sth->fetchrow_hashref) {
+ while (my $row = eval { $sth->fetchrow_hashref }) {
my $fk = $row->{FK_NAME};
- push @{$local_cols->{$fk}}, lc $row->{FKCOLUMN_NAME};
- push @{$remote_cols->{$fk}}, lc $row->{PKCOLUMN_NAME};
- $remote_table->{$fk} = lc $row->{PKTABLE_NAME};
+ push @{$local_cols->{$fk}}, $self->_lc($row->{FKCOLUMN_NAME});
+ push @{$remote_cols->{$fk}}, $self->_lc($row->{PKCOLUMN_NAME});
+ $remote_table->{$fk} = $row->{PKTABLE_NAME};
}
foreach my $fk (keys %$remote_table) {
my $sth = $dbh->prepare(qq{
SELECT ccu.constraint_name, ccu.column_name
-FROM information_schema.constraint_column_usage ccu
-JOIN information_schema.table_constraints tc on (ccu.constraint_name = tc.constraint_name)
-JOIN information_schema.key_column_usage kcu on (ccu.constraint_name = kcu.constraint_name and ccu.column_name = kcu.column_name)
-wHERE lower(ccu.table_name) = @{[ $dbh->quote($table) ]} AND constraint_type = 'UNIQUE' ORDER BY kcu.ordinal_position
+FROM INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE ccu
+JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS tc on (ccu.constraint_name = tc.constraint_name)
+JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE kcu on (ccu.constraint_name = kcu.constraint_name and ccu.column_name = kcu.column_name)
+wHERE lower(ccu.table_name) = @{[ $dbh->quote(lc $table) ]} AND constraint_type = 'UNIQUE' ORDER BY kcu.ordinal_position
});
$sth->execute;
my $constraints;
while (my $row = $sth->fetchrow_hashref) {
my $name = $row->{constraint_name};
- my $col = lc $row->{column_name};
+ my $col = $self->_lc($row->{column_name});
push @{$constraints->{$name}}, $col;
}
my $sth = $dbh->prepare(qq{
SELECT column_name
-FROM information_schema.columns
-WHERE columnproperty(object_id(@{[ $dbh->quote($table) ]}, 'U'), @{[ $dbh->quote($col) ]}, 'IsIdentity') = 1
-AND lower(table_name) = @{[ $dbh->quote($table) ]} AND lower(column_name) = @{[ $dbh->quote($col) ]}
+FROM INFORMATION_SCHEMA.COLUMNS
+WHERE columnproperty(object_id(@{[ $dbh->quote(lc $table) ]}, 'U'), @{[ $dbh->quote(lc $col) ]}, 'IsIdentity') = 1
+AND lower(table_name) = @{[ $dbh->quote(lc $table) ]} AND lower(column_name) = @{[ $dbh->quote(lc $col) ]}
});
if (eval { $sth->execute; $sth->fetchrow_array }) {
$info->{is_auto_increment} = 1;
# get default
$sth = $dbh->prepare(qq{
SELECT column_default
-FROM information_schema.columns
-wHERE lower(table_name) = @{[ $dbh->quote($table) ]} AND lower(column_name) = @{[ $dbh->quote($col) ]}
+FROM INFORMATION_SCHEMA.COLUMNS
+wHERE lower(table_name) = @{[ $dbh->quote(lc $table) ]} AND lower(column_name) = @{[ $dbh->quote(lc $col) ]}
});
my ($default) = eval { $sth->execute; $sth->fetchrow_array };
=cut
1;
+# vim:et sts=4 sw=4 tw=0: