Commit | Line | Data |
---|---|---|
f68f4d44 | 1 | package DBIx::Class::Storage::DBI::Sybase; |
2 | ||
3 | use strict; | |
4 | use warnings; | |
ed7ab0f4 | 5 | use Try::Tiny; |
2ad62d97 | 6 | |
057db5ce | 7 | use base qw/DBIx::Class::Storage::DBI/; |
d867eeda | 8 | |
9 | =head1 NAME | |
10 | ||
95787afe | 11 | DBIx::Class::Storage::DBI::Sybase - Base class for drivers using |
12 | L<DBD::Sybase> | |
d867eeda | 13 | |
14 | =head1 DESCRIPTION | |
15 | ||
057db5ce | 16 | This is the base class/dispatcher for Storage's designed to work with |
17 | L<DBD::Sybase> | |
d867eeda | 18 | |
19 | =head1 METHODS | |
20 | ||
21 | =cut | |
f68f4d44 | 22 | |
47d9646a | 23 | sub _rebless { |
d867eeda | 24 | my $self = shift; |
d29565e0 | 25 | |
ed7ab0f4 | 26 | my $dbtype; |
27 | try { | |
28 | $dbtype = @{$self->_get_dbh->selectrow_arrayref(qq{sp_server_info \@attribute_id=1})}[2] | |
29 | } catch { | |
30 | $self->throw_exception("Unable to estable connection to determine database type: $_") | |
057db5ce | 31 | }; |
d867eeda | 32 | |
057db5ce | 33 | if ($dbtype) { |
d867eeda | 34 | $dbtype =~ s/\W/_/gi; |
d867eeda | 35 | |
057db5ce | 36 | # saner class name |
37 | $dbtype = 'ASE' if $dbtype eq 'SQL_Server'; | |
38 | ||
39 | my $subclass = __PACKAGE__ . "::$dbtype"; | |
40 | if ($self->load_optional_class($subclass)) { | |
d867eeda | 41 | bless $self, $subclass; |
42 | $self->_rebless; | |
d867eeda | 43 | } |
44 | } | |
45 | } | |
46 | ||
057db5ce | 47 | sub _ping { |
d867eeda | 48 | my $self = shift; |
d867eeda | 49 | |
057db5ce | 50 | my $dbh = $self->_dbh or return 0; |
0a9a9955 | 51 | |
057db5ce | 52 | local $dbh->{RaiseError} = 1; |
53 | local $dbh->{PrintError} = 0; | |
0a9a9955 | 54 | |
057db5ce | 55 | if ($dbh->{syb_no_child_con}) { |
56 | # if extra connections are not allowed, then ->ping is reliable | |
57 | my $ping = eval { $dbh->ping }; | |
58 | return $@ ? 0 : $ping; | |
59 | } | |
d867eeda | 60 | |
ed7ab0f4 | 61 | my $rc = 1; |
62 | try { | |
057db5ce | 63 | # XXX if the main connection goes stale, does opening another for this statement |
64 | # really determine anything? | |
65 | $dbh->do('select 1'); | |
ed7ab0f4 | 66 | } catch { |
67 | $rc = 0; | |
d867eeda | 68 | }; |
0a9a9955 | 69 | |
ed7ab0f4 | 70 | return $rc; |
0a9a9955 | 71 | } |
72 | ||
057db5ce | 73 | sub _set_max_connect { |
d867eeda | 74 | my $self = shift; |
057db5ce | 75 | my $val = shift || 256; |
d867eeda | 76 | |
057db5ce | 77 | my $dsn = $self->_dbi_connect_info->[0]; |
d867eeda | 78 | |
057db5ce | 79 | return if ref($dsn) eq 'CODE'; |
81a10d8d | 80 | |
057db5ce | 81 | if ($dsn !~ /maxConnect=/) { |
82 | $self->_dbi_connect_info->[0] = "$dsn;maxConnect=$val"; | |
83 | my $connected = defined $self->_dbh; | |
84 | $self->disconnect; | |
85 | $self->ensure_connected if $connected; | |
d867eeda | 86 | } |
87 | } | |
88 | ||
057db5ce | 89 | =head2 using_freetds |
d867eeda | 90 | |
057db5ce | 91 | Whether or not L<DBD::Sybase> was compiled against FreeTDS. If false, it means |
92 | the Sybase OpenClient libraries were used. | |
d867eeda | 93 | |
94 | =cut | |
95 | ||
057db5ce | 96 | sub using_freetds { |
d867eeda | 97 | my $self = shift; |
d867eeda | 98 | |
057db5ce | 99 | return $self->_get_dbh->{syb_oc_version} =~ /freetds/i; |
d867eeda | 100 | } |
101 | ||
057db5ce | 102 | =head2 set_textsize |
db66bc3f | 103 | |
057db5ce | 104 | When using FreeTDS and/or MSSQL, C<< $dbh->{LongReadLen} >> is not available, |
105 | use this function instead. It does: | |
0a9a9955 | 106 | |
057db5ce | 107 | $dbh->do("SET TEXTSIZE $bytes"); |
0a9a9955 | 108 | |
057db5ce | 109 | Takes the number of bytes, or uses the C<LongReadLen> value from your |
8384a713 | 110 | L<connect_info|DBIx::Class::Storage::DBI/connect_info> if omitted, lastly falls |
111 | back to the C<32768> which is the L<DBD::Sybase> default. | |
d867eeda | 112 | |
113 | =cut | |
114 | ||
057db5ce | 115 | sub set_textsize { |
d867eeda | 116 | my $self = shift; |
057db5ce | 117 | my $text_size = shift || |
118 | eval { $self->_dbi_connect_info->[-1]->{LongReadLen} } || | |
119 | 32768; # the DBD::Sybase default | |
d867eeda | 120 | |
057db5ce | 121 | return unless defined $text_size; |
d867eeda | 122 | |
057db5ce | 123 | $self->_dbh->do("SET TEXTSIZE $text_size"); |
a964a928 | 124 | } |
125 | ||
f68f4d44 | 126 | 1; |
127 | ||
057db5ce | 128 | =head1 AUTHORS |
f68f4d44 | 129 | |
d867eeda | 130 | See L<DBIx::Class/CONTRIBUTORS>. |
47d9646a | 131 | |
f68f4d44 | 132 | =head1 LICENSE |
133 | ||
134 | You may distribute this code under the same terms as Perl itself. | |
135 | ||
136 | =cut |