1Dancer2::Plugin::DBIC(3U)ser Contributed Perl DocumentatiDoanncer2::Plugin::DBIC(3)
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NAME

6       Dancer2::Plugin::DBIC - DBIx::Class interface for Dancer2 applications
7

VERSION

9       version 0.0100
10

SYNOPSIS

12           use Dancer2;
13           use Dancer2::Plugin::DBIC;
14
15           get '/users/:user_id' => sub {
16               my $user = schema('default')->resultset('User')->find(param 'user_id');
17
18               # If you are accessing the 'default' schema, then all the following
19               # are equivalent to the above:
20               $user = schema->resultset('User')->find(param 'user_id');
21               $user = resultset('User')->find(param 'user_id');
22               $user = rset('User')->find(param 'user_id');
23
24               template user_profile => {
25                   user => $user
26               };
27           };
28
29           dance;
30

DESCRIPTION

32       This plugin makes it very easy to create Dancer2 applications that
33       interface with databases.  It automatically exports the keyword
34       "schema" which returns a DBIx::Class::Schema object.  It also exports
35       the keywords "resultset" and "rset".  You just need to configure your
36       database connection information.  For performance, schema objects are
37       cached in memory and are lazy loaded the first time they are accessed.
38
39       This plugin is a thin wrapper around DBICx::Sugar.
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CONFIGURATION

42       Configuration can be done in your Dancer2 config file.  This is a
43       minimal example. It defines one database named "default":
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45           plugins:
46             DBIC:
47               default:
48                 dsn: dbi:SQLite:dbname=some.db
49
50       In this example, there are 2 databases configured named "default" and
51       "foo":
52
53           plugins:
54             DBIC:
55               default:
56                 dsn: dbi:SQLite:dbname=some.db
57                 schema_class: MyApp::Schema
58               foo:
59                 dsn: dbi:mysql:foo
60                 schema_class: Foo::Schema
61                 user: bob
62                 password: secret
63                 options:
64                   RaiseError: 1
65                   PrintError: 1
66
67       Each database configured must at least have a dsn option.  The dsn
68       option should be the DBI driver connection string.  All other options
69       are optional.
70
71       If you only have one schema configured, or one of them is named
72       "default", you can call "schema" without an argument to get the only or
73       "default" schema, respectively.
74
75       If a schema_class option is not provided, then
76       DBIx::Class::Schema::Loader will be used to dynamically load the schema
77       by introspecting the database corresponding to the dsn value.  Remember
78       that you need DBIx::Class::Schema::Loader installed to take advantage
79       of that.
80
81       The schema_class option, should be a proper Perl package name that
82       Dancer2::Plugin::DBIC will use as a DBIx::Class::Schema class.
83       Optionally, a database configuration may have user, password, and
84       options parameters as described in the documentation for connect() in
85       DBI.
86
87       You may also declare your connection information in the following
88       format (which may look more familiar to DBIC users):
89
90           plugins:
91             DBIC:
92               default:
93                 connect_info:
94                   - dbi:mysql:foo
95                   - bob
96                   - secret
97                   -
98                     RaiseError: 1
99                     PrintError: 1
100

FUNCTIONS

102   schema
103           my $user = schema->resultset('User')->find('bob');
104
105       The "schema" keyword returns a DBIx::Class::Schema object ready for you
106       to use.  If you have configured only one database, then you can simply
107       call "schema" with no arguments.  If you have configured multiple
108       databases, you can still call "schema" with no arguments if there is a
109       database named "default" in the configuration.  With no argument, the
110       "default" schema is returned.  Otherwise, you must provide schema()
111       with the name of the database:
112
113           my $user = schema('foo')->resultset('User')->find('bob');
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115   resultset
116       This is a convenience method that will save you some typing.  Use this
117       only when accessing the "default" schema.
118
119           my $user = resultset('User')->find('bob');
120
121       is equivalent to:
122
123           my $user = schema->resultset('User')->find('bob');
124
125   rset
126           my $user = rset('User')->find('bob');
127
128       This is simply an alias for "resultset".
129

SCHEMA GENERATION

131       There are two approaches for generating schema classes.  You may
132       generate your own DBIx::Class classes and set the corresponding
133       "schema_class" setting in your configuration as shown above.  This is
134       the recommended approach for performance and stability.
135
136       It is also possible to have schema classes dynamically generated if you
137       omit the "schema_class" configuration setting.  This requires you to
138       have DBIx::Class::Schema::Loader installed.  The "v7" naming scheme
139       will be used for naming the auto generated classes.  See "naming" in
140       DBIx::Class::Schema::Loader::Base for more information about naming.
141
142       For generating your own schema classes, you can use the dbicdump
143       command line tool provided by DBIx::Class::Schema::Loader to help you.
144       For example, if your app were named Foo, then you could run the
145       following from the root of your project directory:
146
147           dbicdump -o dump_directory=./lib Foo::Schema dbi:SQLite:/path/to/foo.db
148
149       For that example, your "schema_class" setting would be "Foo::Schema".
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SEE ALSO

152       •   DBICx::Sugar
153

CONTRIBUTORS

155       •   Alexis Sukrieh <sukria@sukria.net>
156
157       •   Dagfinn Ilmari Mannsåker <<https://github.com/ilmari>>
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159       •   David Precious <davidp@preshweb.co.uk>
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161       •   ennio <<https://github.com/scriplit>>
162
163       •   Fabrice Gabolde <<https://github.com/fgabolde>>
164
165       •   Franck Cuny <franck@lumberjaph.net>
166
167       •   Steven Humphrey <<https://github.com/shumphrey>>
168
169       •   Yanick Champoux <<https://github.com/yanick>>
170

AUTHOR

172       Naveed Massjouni <naveed@vt.edu>
173
175       This software is copyright (c) 2013 by Naveed Massjouni.
176
177       This is free software; you can redistribute it and/or modify it under
178       the same terms as the Perl 5 programming language system itself.
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182perl v5.36.0                      2023-01-20          Dancer2::Plugin::DBIC(3)
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