DBIx::Class::Optional::Dependencies

(source, CPAN)

#NAME

DBIx::Class::Optional::Dependencies - Optional module dependency specifications (for module authors)

#SYNOPSIS

Somewhere in your build-file (e.g. Module::Install's Makefile.PL):

...

configure_requires 'DBIx::Class' => '0.082843';

require DBIx::Class::Optional::Dependencies;

my $deploy_deps = DBIx::Class::Optional::Dependencies->req_list_for('deploy');

for (keys %$deploy_deps) {
  requires $_ => $deploy_deps->{$_};
}

...

Note that there are some caveats regarding configure_requires(), more info can be found at "configure_requires" in Module::Install

#DESCRIPTION

Some of the less-frequently used features of DBIx::Class have external module dependencies on their own. In order not to burden the average user with modules he will never use, these optional dependencies are not included in the base Makefile.PL. Instead an exception with a descriptive message is thrown when a specific feature is missing one or several modules required for its operation. This module is the central holding place for the current list of such dependencies, for DBIx::Class core authors, and DBIx::Class extension authors alike.

#CURRENT REQUIREMENT GROUPS

Dependencies are organized in groups and each group can list one or more required modules, with an optional minimum version (or 0 for any version). The group name can be used in the

#DBIx::Class::Admin

Modules required for the DBIx::Class administrative library

JSON::Any >= 1.23
Moose >= 0.98
MooseX::Types >= 0.21
MooseX::Types::JSON >= 0.02
MooseX::Types::LoadableClass >= 0.011
MooseX::Types::Path::Class >= 0.05

Requirement group: admin

#dbicadmin

Modules required for the CLI DBIx::Class interface dbicadmin

Getopt::Long::Descriptive >= 0.081
JSON::Any >= 1.23
Moose >= 0.98
MooseX::Types >= 0.21
MooseX::Types::JSON >= 0.02
MooseX::Types::LoadableClass >= 0.011
MooseX::Types::Path::Class >= 0.05
Text::CSV >= 1.16

Requirement group: admin_script

#Storage::DBI::deploy()

Modules required for "deployment_statements" in DBIx::Class::Storage::DBI and "deploy" in DBIx::Class::Schema

SQL::Translator >= 0.11018

Requirement group: deploy

#Sybase ASE support

Modules required to connect to Sybase ASE

DBD::Sybase

Requirement group: rdbms_ase

#DB2 support

Modules required to connect to DB2

DBD::DB2

Requirement group: rdbms_db2

#DB2 on AS/400 support

Modules required to connect to DB2 on AS/400

DBD::ODBC

Requirement group: rdbms_db2_400

#Firebird support

Modules required to connect to Firebird

DBD::Firebird

Requirement group: rdbms_firebird

#Firebird support via DBD::InterBase

Modules required to connect to Firebird via DBD::InterBase

DBD::InterBase

Requirement group: rdbms_firebird_interbase

#Firebird support via DBD::ODBC

Modules required to connect to Firebird via DBD::ODBC

DBD::ODBC

Requirement group: rdbms_firebird_odbc

#Informix support

Modules required to connect to Informix

DBD::Informix

Requirement group: rdbms_informix

#MS Access support via DBD::ADO (Windows only)

Modules required to connect to MS Access via DBD::ADO. This particular DBD is available on Windows only

DBD::ADO

Requirement group: rdbms_msaccess_ado

#MS Access support via DBD::ODBC

Modules required to connect to MS Access via DBD::ODBC

DBD::ODBC

Requirement group: rdbms_msaccess_odbc

#MSSQL support via DBD::ADO (Windows only)

Modules required to connect to MSSQL via DBD::ADO. This particular DBD is available on Windows only

DBD::ADO

Requirement group: rdbms_mssql_ado

#MSSQL support via DBD::ODBC

Modules required to connect to MSSQL via DBD::ODBC

DBD::ODBC

Requirement group: rdbms_mssql_odbc

#MSSQL support via DBD::Sybase

Modules required to connect to MSSQL via DBD::Sybase

DBD::Sybase

Requirement group: rdbms_mssql_sybase

#MySQL support

Modules required to connect to MySQL

DBD::mysql

Requirement group: rdbms_mysql

#Oracle support

Modules required to connect to Oracle

DBD::Oracle
Math::Base36 >= 0.07
Math::BigInt >= 1.80

Requirement group: rdbms_oracle

#PostgreSQL support

Modules required to connect to PostgreSQL

DBD::Pg

Requirement group: rdbms_pg

#SQLAnywhere support

Modules required to connect to SQLAnywhere

DBD::SQLAnywhere

Requirement group: rdbms_sqlanywhere

#SQLAnywhere support via DBD::ODBC

Modules required to connect to SQLAnywhere via DBD::ODBC

DBD::ODBC

Requirement group: rdbms_sqlanywhere_odbc

#SQLite support

Modules required to connect to SQLite

DBD::SQLite

Requirement group: rdbms_sqlite

#Storage::Replicated

Modules required for DBIx::Class::Storage::DBI::Replicated

Clone
Moose >= 0.98
MooseX::Types >= 0.21
MooseX::Types::LoadableClass >= 0.011

Requirement group: replicated

#METHODS

#req_group_list

#Arguments: none
#Return Value: \%list_of_requirement_groups

This method should be used by DBIx::Class packagers, to get a hashref of all dependencies keyed by dependency group. Each key (group name) can be supplied to one of the group-specific methods below.

#req_list_for

#Arguments: $group_name
#Return Value: \%list_of_module_version_pairs

This method should be used by DBIx::Class extension authors, to determine the version of modules a specific feature requires in the current version of DBIx::Class. See the "SYNOPSIS" for a real-world example.

#req_ok_for

#Arguments: $group_name
#Return Value: 1|0

Returns true or false depending on whether all modules required by $group_name are present on the system and loadable.

#req_missing_for

#Arguments: $group_name
#Return Value: $error_message_string

Returns a single line string suitable for inclusion in larger error messages. This method would normally be used by DBIx::Class core-module author, to indicate to the user that he needs to install specific modules before he will be able to use a specific feature.

For example if some of the requirements for deploy are not available, the returned string could look like:

SQL::Translator >= 0.11018 (see DBIx::Class::Optional::Dependencies for details)

The author is expected to prepend the necessary text to this message before returning the actual error seen by the user.

#die_unless_req_ok_for

#Arguments: $group_name

Checks if "req_ok_for" passes for the supplied $group_name, and in case of failure throws an exception including the information from "req_missing_for".

#req_errorlist_for

#Arguments: $group_name
#Return Value: \%list_of_loaderrors_per_module

Returns a hashref containing the actual errors that occurred while attempting to load each module in the requirement group.

#FURTHER QUESTIONS?

Check the list of additional DBIC resources.

#COPYRIGHT AND LICENSE

This module is free software copyright by the DBIx::Class (DBIC) authors. You can redistribute it and/or modify it under the same terms as the DBIx::Class library.

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