1CGI::Session::Driver::DUBsIe(r3)Contributed Perl DocumenCtGaIt:i:oSnession::Driver::DBI(3)
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NAME

6       CGI::Session::Driver::DBI - Base class for native DBI-related
7       CGI::Session drivers
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SYNOPSIS

10           require CGI::Session::Driver::DBI;
11           @ISA = qw( CGI::Session::Driver::DBI );
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DESCRIPTION

14       In most cases you can create a new DBI-driven CGI::Session driver by
15       simply creating an empty driver file that inherits from
16       CGI::Session::Driver::DBI. That's exactly what sqlite does. The only
17       reason why this class doesn't suit for a valid driver is its name isn't
18       in lowercase. I'm serious!
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20   NOTES
21       CGI::Session::Driver::DBI defines init() method, which makes DBI handle
22       available for drivers in Handle - object attribute regardless of what
23       "\%dsn_args" were used in creating session object. Should your driver
24       require non-standard initialization you have to re-define init() method
25       in your .pm file, but make sure to set 'Handle' - object attribute to
26       database handle (returned by DBI->connect(...)) if you wish to inherit
27       any of the methods from CGI::Session::Driver::DBI.
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STORAGE

30       Before you can use any DBI-based session drivers you need to make sure
31       compatible database table is created for CGI::Session to work with.
32       Following command will produce minimal requirements in most SQL
33       databases:
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35           CREATE TABLE sessions (
36               id CHAR(32) NOT NULL PRIMARY KEY,
37               a_session TEXT NOT NULL
38           );
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40       Your session table can define additional columns, but the above two are
41       required. Name of the session table is expected to be sessions by
42       default. You may use a different name if you wish. To do this you have
43       to pass TableName as part of your " \%dsn_args ":
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45           $s = CGI::Session->new('driver:sqlite', undef, {TableName=>'my_sessions'});
46           $s = CGI::Session->new('driver:mysql', undef,
47           {
48               TableName=>'my_sessions',
49               DataSource=>'dbi:mysql:shopping_cart'.
50           });
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52       To use different column names, change the 'create table' statement, and
53       then simply do this:
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55           $s = CGI::Session->new('driver:pg', undef,
56           {
57               TableName=>'session',
58               IdColName=>'my_id',
59               DataColName=>'my_data',
60               DataSource=>'dbi:pg:dbname=project',
61           });
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63       or
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65           $s = CGI::Session->new('driver:pg', undef,
66           {
67               TableName=>'session',
68               IdColName=>'my_id',
69               DataColName=>'my_data',
70               Handle=>$dbh,
71           });
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DRIVER ARGUMENTS

74       Following driver arguments are supported:
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76       DataSource
77           First argument to be passed to DBI->connect(). If the driver makes
78           the database connection itself, it will also explicitly disconnect
79           from the database when the driver object is DESTROYed.
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81       User
82           User privileged to connect to the database defined in "DataSource".
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84       Password
85           Password of the User privileged to connect to the database defined
86           in "DataSource"
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88       Handle
89           An existing DBI database handle object. The handle can be created
90           on demand by providing a code reference as a argument, such as
91           "<sub{DBI-"connect}>>.  This way, the database connection is only
92           created if it actually needed. This can be useful when combined
93           with a framework plugin like CGI::Application::Plugin::Session,
94           which creates a CGI::Session object on demand as well.
95
96           "Handle" will override all the above arguments, if any present.
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98       TableName
99           Name of the table session data will be stored in.
100

LICENSING

102       For support and licensing information see CGI::Session
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106perl v5.28.0                      2011-07-11      CGI::Session::Driver::DBI(3)
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