Commit | Line | Data |
98464041 |
1 | package DBIx::Class::Storage::DBI::Sybase::Microsoft_SQL_Server; |
2 | |
3 | use strict; |
4 | use warnings; |
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5 | |
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6 | use base qw/ |
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7 | DBIx::Class::Storage::DBI::Sybase |
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8 | DBIx::Class::Storage::DBI::MSSQL |
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9 | /; |
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10 | use mro 'c3'; |
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11 | use Carp::Clan qw/^DBIx::Class/; |
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12 | |
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13 | sub _rebless { |
14 | my $self = shift; |
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15 | my $dbh = $self->_get_dbh; |
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16 | |
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17 | return if ref $self ne __PACKAGE__; |
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18 | if (not $self->_use_typeless_placeholders) { |
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19 | require |
20 | DBIx::Class::Storage::DBI::Sybase::Microsoft_SQL_Server::NoBindVars; |
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21 | bless $self, |
22 | 'DBIx::Class::Storage::DBI::Sybase::Microsoft_SQL_Server::NoBindVars'; |
23 | $self->_rebless; |
24 | } |
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25 | } |
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26 | |
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27 | sub _run_connection_actions { |
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28 | my $self = shift; |
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29 | |
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30 | # LongReadLen doesn't work with MSSQL through DBD::Sybase, and the default is |
31 | # huge on some versions of SQL server and can cause memory problems, so we |
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32 | # fix it up here (see ::DBI::Sybase.pm) |
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33 | $self->set_textsize; |
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34 | |
35 | $self->next::method(@_); |
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36 | } |
37 | |
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38 | sub _dbh_begin_work { |
39 | my $self = shift; |
40 | |
41 | $self->_get_dbh->do('BEGIN TRAN'); |
42 | } |
43 | |
44 | sub _dbh_commit { |
45 | my $self = shift; |
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46 | my $dbh = $self->_dbh |
47 | or $self->throw_exception('cannot COMMIT on a disconnected handle'); |
48 | $dbh->do('COMMIT'); |
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49 | } |
50 | |
51 | sub _dbh_rollback { |
52 | my $self = shift; |
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53 | my $dbh = $self->_dbh |
54 | or $self->throw_exception('cannot ROLLBACK on a disconnected handle'); |
55 | $dbh->do('ROLLBACK'); |
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56 | } |
57 | |
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58 | sub _get_server_version { |
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59 | my $self = shift; |
60 | |
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61 | my $product_version = $self->_get_dbh->selectrow_hashref('master.dbo.xp_msver ProductVersion'); |
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62 | |
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63 | if ((my $version = $product_version->{Character_Value}) =~ /^(\d+)\./) { |
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64 | return $version; |
65 | } |
66 | else { |
67 | $self->throw_exception( |
68 | "MSSQL Version Retrieval Failed, Your ProductVersion's Character_Value is missing or malformed!" |
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69 | ); |
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70 | } |
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71 | } |
72 | |
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73 | =head2 connect_call_datetime_setup |
74 | |
75 | Used as: |
76 | |
77 | on_connect_call => 'datetime_setup' |
78 | |
79 | In L<connect_info|DBIx::Class::Storage::DBI/connect_info> to set: |
80 | |
81 | $dbh->syb_date_fmt('ISO_strict'); # output fmt: 2004-08-21T14:36:48.080Z |
82 | |
83 | On connection for use with L<DBIx::Class::InflateColumn::DateTime> |
84 | |
85 | This works for both C<DATETIME> and C<SMALLDATETIME> columns, although |
86 | C<SMALLDATETIME> columns only have minute precision. |
87 | |
88 | =cut |
89 | |
90 | { |
91 | my $old_dbd_warned = 0; |
92 | |
93 | sub connect_call_datetime_setup { |
94 | my $self = shift; |
95 | my $dbh = $self->_get_dbh; |
96 | |
97 | if ($dbh->can('syb_date_fmt')) { |
98 | # amazingly, this works with FreeTDS |
99 | $dbh->syb_date_fmt('ISO_strict'); |
100 | } elsif (not $old_dbd_warned) { |
101 | carp "Your DBD::Sybase is too old to support ". |
102 | "DBIx::Class::InflateColumn::DateTime, please upgrade!"; |
103 | $old_dbd_warned = 1; |
104 | } |
105 | } |
106 | } |
107 | |
108 | sub datetime_parser_type { |
109 | 'DBIx::Class::Storage::DBI::Sybase::Microsoft_SQL_Server::DateTime::Format' |
110 | } |
111 | |
112 | package # hide from PAUSE |
113 | DBIx::Class::Storage::DBI::Sybase::Microsoft_SQL_Server::DateTime::Format; |
114 | |
115 | my $datetime_parse_format = '%Y-%m-%dT%H:%M:%S.%3NZ'; |
116 | my $datetime_format_format = '%Y-%m-%d %H:%M:%S.%3N'; # %F %T |
117 | |
118 | my ($datetime_parser, $datetime_formatter); |
119 | |
120 | sub parse_datetime { |
121 | shift; |
122 | require DateTime::Format::Strptime; |
123 | $datetime_parser ||= DateTime::Format::Strptime->new( |
124 | pattern => $datetime_parse_format, |
125 | on_error => 'croak', |
126 | ); |
127 | return $datetime_parser->parse_datetime(shift); |
128 | } |
129 | |
130 | sub format_datetime { |
131 | shift; |
132 | require DateTime::Format::Strptime; |
133 | $datetime_formatter ||= DateTime::Format::Strptime->new( |
134 | pattern => $datetime_format_format, |
135 | on_error => 'croak', |
136 | ); |
137 | return $datetime_formatter->format_datetime(shift); |
138 | } |
139 | |
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140 | 1; |
141 | |
142 | =head1 NAME |
143 | |
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144 | DBIx::Class::Storage::DBI::Sybase::Microsoft_SQL_Server - Support for Microsoft |
145 | SQL Server via DBD::Sybase |
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146 | |
147 | =head1 SYNOPSIS |
148 | |
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149 | This subclass supports MSSQL server connections via L<DBD::Sybase>. |
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150 | |
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151 | =head1 DESCRIPTION |
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152 | |
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153 | This driver tries to determine whether your version of L<DBD::Sybase> and |
154 | supporting libraries (usually FreeTDS) support using placeholders, if not the |
155 | storage will be reblessed to |
156 | L<DBIx::Class::Storage::DBI::Sybase::Microsoft_SQL_Server::NoBindVars>. |
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157 | |
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158 | The MSSQL specific functionality is provided by |
159 | L<DBIx::Class::Storage::DBI::MSSQL>. |
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160 | |
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161 | =head1 AUTHOR |
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162 | |
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163 | See L<DBIx::Class/CONTRIBUTORS>. |
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164 | |
165 | =head1 LICENSE |
166 | |
167 | You may distribute this code under the same terms as Perl itself. |
168 | |
169 | =cut |