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1 | package DBIx::Class::Storage::DBI::Sybase; |
2 | |
3 | use strict; |
4 | use warnings; |
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5 | use DBIx::Class::_Util 'dbic_internal_try'; |
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6 | use Try::Tiny; |
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7 | use namespace::clean; |
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8 | |
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9 | use base qw/DBIx::Class::Storage::DBI/; |
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10 | |
11 | =head1 NAME |
12 | |
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13 | DBIx::Class::Storage::DBI::Sybase - Base class for drivers using |
14 | L<DBD::Sybase> |
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15 | |
16 | =head1 DESCRIPTION |
17 | |
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18 | This is the base class/dispatcher for Storage's designed to work with |
19 | L<DBD::Sybase> |
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20 | |
21 | =head1 METHODS |
22 | |
23 | =cut |
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24 | |
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25 | sub _rebless { shift->_determine_connector_driver('Sybase') } |
26 | |
27 | sub _get_rdbms_name { |
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28 | my $self = shift; |
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29 | |
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30 | dbic_internal_try { |
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31 | my $name = $self->_get_dbh->selectrow_arrayref('sp_server_info @attribute_id=1')->[2]; |
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32 | |
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33 | if ($name) { |
34 | $name =~ s/\W/_/gi; |
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35 | |
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36 | # saner class name |
37 | $name = 'ASE' if $name eq 'SQL_Server'; |
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38 | } |
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39 | |
40 | $name; # RV |
41 | } catch { |
42 | $self->throw_exception("Unable to establish connection to determine database type: $_") |
43 | }; |
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44 | } |
45 | |
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46 | sub _init { |
47 | # once the driver is determined see if we need to insert the DBD::Sybase w/ FreeTDS fixups |
48 | # this is a dirty version of "instance role application", \o/ DO WANT Moo \o/ |
49 | my $self = shift; |
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50 | if (! $self->isa('DBIx::Class::Storage::DBI::Sybase::FreeTDS') and $self->_using_freetds) { |
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51 | require DBIx::Class::Storage::DBI::Sybase::FreeTDS; |
52 | |
53 | my @isa = @{mro::get_linear_isa(ref $self)}; |
54 | my $class = shift @isa; # this is our current ref |
55 | |
56 | my $trait_class = $class . '::FreeTDS'; |
57 | mro::set_mro ($trait_class, 'c3'); |
58 | no strict 'refs'; |
59 | @{"${trait_class}::ISA"} = ($class, 'DBIx::Class::Storage::DBI::Sybase::FreeTDS', @isa); |
60 | |
61 | bless ($self, $trait_class); |
62 | |
63 | Class::C3->reinitialize() if DBIx::Class::_ENV_::OLD_MRO; |
64 | |
65 | $self->_init(@_); |
66 | } |
67 | |
68 | $self->next::method(@_); |
69 | } |
70 | |
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71 | sub _ping { |
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72 | my $self = shift; |
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73 | |
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74 | my $dbh = $self->_dbh or return 0; |
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75 | |
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76 | local $dbh->{RaiseError} = 1; |
77 | local $dbh->{PrintError} = 0; |
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78 | |
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79 | ( dbic_internal_try { $dbh->do('select 1'); 1 } ) |
80 | ? 1 |
81 | : 0 |
82 | ; |
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83 | } |
84 | |
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85 | sub _set_max_connect { |
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86 | my $self = shift; |
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87 | my $val = shift || 256; |
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88 | |
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89 | my $dsn = $self->_dbi_connect_info->[0]; |
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90 | |
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91 | return if ref($dsn) eq 'CODE'; |
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92 | |
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93 | if ($dsn !~ /maxConnect=/) { |
94 | $self->_dbi_connect_info->[0] = "$dsn;maxConnect=$val"; |
95 | my $connected = defined $self->_dbh; |
96 | $self->disconnect; |
97 | $self->ensure_connected if $connected; |
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98 | } |
99 | } |
100 | |
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101 | # Whether or not DBD::Sybase was compiled against FreeTDS. If false, it means |
102 | # the Sybase OpenClient libraries were used. |
103 | sub _using_freetds { |
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104 | my $self = shift; |
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105 | return ($self->_get_dbh->{syb_oc_version}||'') =~ /freetds/i; |
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106 | } |
107 | |
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108 | # Either returns the FreeTDS version against which DBD::Sybase was compiled, |
109 | # 0 if can't be determined, or undef otherwise |
110 | sub _using_freetds_version { |
111 | my $inf = shift->_get_dbh->{syb_oc_version}; |
112 | return undef unless ($inf||'') =~ /freetds/i; |
113 | return $inf =~ /v([0-9\.]+)/ ? $1 : 0; |
114 | } |
115 | |
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116 | =head1 FURTHER QUESTIONS? |
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117 | |
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118 | Check the list of L<additional DBIC resources|DBIx::Class/GETTING HELP/SUPPORT>. |
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119 | |
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120 | =head1 COPYRIGHT AND LICENSE |
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121 | |
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122 | This module is free software L<copyright|DBIx::Class/COPYRIGHT AND LICENSE> |
123 | by the L<DBIx::Class (DBIC) authors|DBIx::Class/AUTHORS>. You can |
124 | redistribute it and/or modify it under the same terms as the |
125 | L<DBIx::Class library|DBIx::Class/COPYRIGHT AND LICENSE>. |
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126 | |
127 | =cut |
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128 | |
129 | 1; |
130 | |