1 package DBIx::Class::Schema::Loader::DBI::MSSQL;
6 DBIx::Class::Schema::Loader::DBI
7 DBIx::Class::Schema::Loader::DBI::Sybase::Common
9 use Carp::Clan qw/^DBIx::Class/;
12 our $VERSION = '0.04999_13';
16 DBIx::Class::Schema::Loader::DBI::MSSQL - DBIx::Class::Schema::Loader::DBI MSSQL Implementation.
21 use base qw/DBIx::Class::Schema::Loader/;
23 __PACKAGE__->loader_options( debug => 1 );
29 See L<DBIx::Class::Schema::Loader::Base>.
36 $self->next::method(@_);
37 $self->{db_schema} ||= $self->_build_db_schema;
38 $self->_set_quote_char_and_name_sep;
41 # drop bad tables when constructing list
45 my @tables = $self->next::method(@_);
48 for my $table (@tables) {
49 my $full_quoted_table;
50 if($self->{db_schema}) {
51 $full_quoted_table = $self->{db_schema} . $self->{_namesep} .
52 $self->_quote_table_name($table);
54 $full_quoted_table = $self->_quote_table_name($table);
56 my $dbh = $self->schema->storage->dbh;
57 my $sth = $dbh->prepare($self->schema->storage->sql_maker
58 ->select(\$full_quoted_table, undef, \'1 = 0'));
59 eval { $sth->execute };
61 push @filtered_tables, $table;
64 warn "Bad table or view '$table', ignoring.\n";
68 return @filtered_tables;
71 # remove 'IDENTITY' from column data_type
72 sub _columns_info_for {
74 my $result = $self->next::method(@_);
76 for my $col (keys %$result) {
77 $result->{$col}->{data_type} =~ s/\s* identity \s*//ix;
84 my ($self, $table) = @_;
85 my $dbh = $self->schema->storage->dbh;
86 my $sth = $dbh->prepare(qq{sp_pkeys '$table'});
91 while (my $row = $sth->fetchrow_hashref) {
92 push @keydata, lc $row->{COLUMN_NAME};
99 my ($self, $table) = @_;
101 my ($local_cols, $remote_cols, $remote_table, @rels);
102 my $dbh = $self->schema->storage->dbh;
103 my $sth = $dbh->prepare(qq{sp_fkeys \@FKTABLE_NAME = '$table'});
106 while (my $row = $sth->fetchrow_hashref) {
107 my $fk = $row->{FK_NAME};
108 push @{$local_cols->{$fk}}, lc $row->{FKCOLUMN_NAME};
109 push @{$remote_cols->{$fk}}, lc $row->{PKCOLUMN_NAME};
110 $remote_table->{$fk} = $row->{PKTABLE_NAME};
113 foreach my $fk (keys %$remote_table) {
115 local_columns => \@{$local_cols->{$fk}},
116 remote_columns => \@{$remote_cols->{$fk}},
117 remote_table => $remote_table->{$fk},
124 sub _table_uniq_info {
125 my ($self, $table) = @_;
127 my $dbh = $self->schema->storage->dbh;
128 my $sth = $dbh->prepare(qq{SELECT CCU.CONSTRAINT_NAME, CCU.COLUMN_NAME FROM INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE CCU
129 JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS TC ON (CCU.CONSTRAINT_NAME = TC.CONSTRAINT_NAME)
130 JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE KCU ON (CCU.CONSTRAINT_NAME = KCU.CONSTRAINT_NAME AND CCU.COLUMN_NAME = KCU.COLUMN_NAME)
131 WHERE CCU.TABLE_NAME = @{[ $dbh->quote($table) ]} AND CONSTRAINT_TYPE = 'UNIQUE' ORDER BY KCU.ORDINAL_POSITION});
134 while (my $row = $sth->fetchrow_hashref) {
135 my $name = lc $row->{CONSTRAINT_NAME};
136 my $col = lc $row->{COLUMN_NAME};
137 push @{$constraints->{$name}}, $col;
140 my @uniqs = map { [ $_ => $constraints->{$_} ] } keys %$constraints;
144 sub _extra_column_info {
145 my ($self, $info) = @_;
148 my ($table, $column) = @$info{qw/TABLE_NAME COLUMN_NAME/};
150 my $dbh = $self->schema->storage->dbh;
151 my $sth = $dbh->prepare(qq{
153 FROM INFORMATION_SCHEMA.COLUMNS
154 WHERE COLUMNPROPERTY(object_id(@{[ $dbh->quote($table) ]}, 'U'), '$column', 'IsIdentity') = 1
155 AND TABLE_NAME = @{[ $dbh->quote($table) ]} AND COLUMN_NAME = @{[ $dbh->quote($column) ]}
159 if ($sth->fetchrow_array) {
160 $extra_info{is_auto_increment} = 1;
164 $sth = $dbh->prepare(qq{
165 SELECT COLUMN_DEFAULT
166 FROM INFORMATION_SCHEMA.COLUMNS
167 WHERE TABLE_NAME = @{[ $dbh->quote($table) ]} AND COLUMN_NAME = @{[ $dbh->quote($column) ]}
170 my ($default) = $sth->fetchrow_array;
172 if (defined $default) {
174 $default =~ s/^\( (.*) \)\z/$1/x;
176 # Literal strings are in ''s, numbers are in ()s (in some versions of
177 # MSSQL, in others they are unquoted) everything else is a function.
178 $extra_info{default_value} =
179 $default =~ /^['(] (.*) [)']\z/x ? $1 :
180 $default =~ /^\d/ ? $default : \$default;
188 L<DBIx::Class::Schema::Loader>, L<DBIx::Class::Schema::Loader::Base>,
189 L<DBIx::Class::Schema::Loader::DBI>
193 See L<DBIx::Class::Schema::Loader/AUTHOR> and L<DBIx::Class::Schema::Loader/CONTRIBUTORS>.
197 This library is free software; you can redistribute it and/or modify it under
198 the same terms as Perl itself.