Commit | Line | Data |
---|---|---|
f68f4d44 | 1 | package DBIx::Class::Storage::DBI::Sybase; |
2 | ||
3 | use strict; | |
4 | use warnings; | |
ed7ab0f4 | 5 | use Try::Tiny; |
fd323bf1 | 6 | use namespace::clean; |
2ad62d97 | 7 | |
057db5ce | 8 | use base qw/DBIx::Class::Storage::DBI/; |
d867eeda | 9 | |
10 | =head1 NAME | |
11 | ||
95787afe | 12 | DBIx::Class::Storage::DBI::Sybase - Base class for drivers using |
13 | L<DBD::Sybase> | |
d867eeda | 14 | |
15 | =head1 DESCRIPTION | |
16 | ||
057db5ce | 17 | This is the base class/dispatcher for Storage's designed to work with |
18 | L<DBD::Sybase> | |
d867eeda | 19 | |
20 | =head1 METHODS | |
21 | ||
22 | =cut | |
f68f4d44 | 23 | |
47d9646a | 24 | sub _rebless { |
d867eeda | 25 | my $self = shift; |
d29565e0 | 26 | |
ed7ab0f4 | 27 | my $dbtype; |
28 | try { | |
29 | $dbtype = @{$self->_get_dbh->selectrow_arrayref(qq{sp_server_info \@attribute_id=1})}[2] | |
30 | } catch { | |
31 | $self->throw_exception("Unable to estable connection to determine database type: $_") | |
057db5ce | 32 | }; |
d867eeda | 33 | |
057db5ce | 34 | if ($dbtype) { |
d867eeda | 35 | $dbtype =~ s/\W/_/gi; |
d867eeda | 36 | |
057db5ce | 37 | # saner class name |
38 | $dbtype = 'ASE' if $dbtype eq 'SQL_Server'; | |
39 | ||
40 | my $subclass = __PACKAGE__ . "::$dbtype"; | |
41 | if ($self->load_optional_class($subclass)) { | |
d867eeda | 42 | bless $self, $subclass; |
43 | $self->_rebless; | |
d867eeda | 44 | } |
45 | } | |
46 | } | |
47 | ||
057db5ce | 48 | sub _ping { |
d867eeda | 49 | my $self = shift; |
d867eeda | 50 | |
057db5ce | 51 | my $dbh = $self->_dbh or return 0; |
0a9a9955 | 52 | |
057db5ce | 53 | local $dbh->{RaiseError} = 1; |
54 | local $dbh->{PrintError} = 0; | |
0a9a9955 | 55 | |
057db5ce | 56 | if ($dbh->{syb_no_child_con}) { |
57 | # if extra connections are not allowed, then ->ping is reliable | |
52b420dd | 58 | return try { $dbh->ping } catch { 0; }; |
057db5ce | 59 | } |
d867eeda | 60 | |
52b420dd | 61 | return try { |
057db5ce | 62 | # XXX if the main connection goes stale, does opening another for this statement |
63 | # really determine anything? | |
64 | $dbh->do('select 1'); | |
52b420dd | 65 | 1; |
ed7ab0f4 | 66 | } catch { |
52b420dd | 67 | 0; |
d867eeda | 68 | }; |
0a9a9955 | 69 | } |
70 | ||
057db5ce | 71 | sub _set_max_connect { |
d867eeda | 72 | my $self = shift; |
057db5ce | 73 | my $val = shift || 256; |
d867eeda | 74 | |
057db5ce | 75 | my $dsn = $self->_dbi_connect_info->[0]; |
d867eeda | 76 | |
057db5ce | 77 | return if ref($dsn) eq 'CODE'; |
81a10d8d | 78 | |
057db5ce | 79 | if ($dsn !~ /maxConnect=/) { |
80 | $self->_dbi_connect_info->[0] = "$dsn;maxConnect=$val"; | |
81 | my $connected = defined $self->_dbh; | |
82 | $self->disconnect; | |
83 | $self->ensure_connected if $connected; | |
d867eeda | 84 | } |
85 | } | |
86 | ||
057db5ce | 87 | =head2 using_freetds |
d867eeda | 88 | |
057db5ce | 89 | Whether or not L<DBD::Sybase> was compiled against FreeTDS. If false, it means |
90 | the Sybase OpenClient libraries were used. | |
d867eeda | 91 | |
92 | =cut | |
93 | ||
057db5ce | 94 | sub using_freetds { |
d867eeda | 95 | my $self = shift; |
d867eeda | 96 | |
057db5ce | 97 | return $self->_get_dbh->{syb_oc_version} =~ /freetds/i; |
d867eeda | 98 | } |
99 | ||
057db5ce | 100 | =head2 set_textsize |
db66bc3f | 101 | |
057db5ce | 102 | When using FreeTDS and/or MSSQL, C<< $dbh->{LongReadLen} >> is not available, |
103 | use this function instead. It does: | |
0a9a9955 | 104 | |
057db5ce | 105 | $dbh->do("SET TEXTSIZE $bytes"); |
0a9a9955 | 106 | |
057db5ce | 107 | Takes the number of bytes, or uses the C<LongReadLen> value from your |
8384a713 | 108 | L<connect_info|DBIx::Class::Storage::DBI/connect_info> if omitted, lastly falls |
109 | back to the C<32768> which is the L<DBD::Sybase> default. | |
d867eeda | 110 | |
111 | =cut | |
112 | ||
057db5ce | 113 | sub set_textsize { |
d867eeda | 114 | my $self = shift; |
9780718f | 115 | my $text_size = |
116 | shift | |
117 | || | |
118 | try { $self->_dbi_connect_info->[-1]->{LongReadLen} } | |
119 | || | |
057db5ce | 120 | 32768; # the DBD::Sybase default |
d867eeda | 121 | |
057db5ce | 122 | return unless defined $text_size; |
d867eeda | 123 | |
057db5ce | 124 | $self->_dbh->do("SET TEXTSIZE $text_size"); |
a964a928 | 125 | } |
126 | ||
f68f4d44 | 127 | 1; |
128 | ||
057db5ce | 129 | =head1 AUTHORS |
f68f4d44 | 130 | |
d867eeda | 131 | See L<DBIx::Class/CONTRIBUTORS>. |
47d9646a | 132 | |
f68f4d44 | 133 | =head1 LICENSE |
134 | ||
135 | You may distribute this code under the same terms as Perl itself. | |
136 | ||
137 | =cut |