PGObject::Util::DBAdmin

SYNOPSIS

This module provides an interface to the basic Postgres db manipulation utilities.

 my $db = PGObject::Util::DBAdmin->new(
    username => 'postgres',
    password => 'mypassword',
    host     => 'localhost',
    port     => '5432',
    dbname   => 'mydb'
 );
 my @dbnames = $db->list_dbs(); # like psql -l
 $db->create(); # createdb
 $db->run_file(file => 'sql/initial_schema.sql'); # psql -f
 my $filename = $db->backup(format => 'c'); # pg_dump -Fc
 my $db2 = PGObject::Util::DBAdmin->new($db->export, (dbname => 'otherdb'));

PROPERTIES

host

In PostgreSQL, this can refer to the hostname or the absolute path to the directory where the UNIX sockets are set up.

SUBROUTINES/METHODS

new

Creates a new db admin object for manipulating databases.

export

Exports the database parameters in a hash so it can be used to create another pbject.

connect($options)

Connects to the db using DBI and returns a db connection; allows specification of options in the $options hashref.

server_version

returns a version string (like 9.1.4) for PostgreSQL

create

Creates a new db. Dies if there is an error.

Supported arguments:

copy_of: Creates the db as a copy of the one of that name. Default is unspecified.

run_file

Run the specified file on the db. Accepted parameters are:

file: Path to file to be run
log: Path to combined stderr/stdout log. If specified, do not specify other logs as this is unsupported.
errlog: Path to error log to store stderr output
stdout_log: Path to where to log standard output
continue_on_error: If set, does not die on error.

backup

Takes a backup and delivers the temporary file name to the handler.

Accepted parameters include:

format: The specified format, for example c for custom. Defaults to plain text
tempdir: The directory to store temp files in. Defaults to $ENV{TEMP} if set and '/tmp/' if not.

Returns the file name of the tempfile.

backup_globals

This creates a plain text dump of global (inter-db) objects, such as users and tablespaces. It uses pg_dumpall to do this.

Options include:

file: File name in the path.
tempdir: The directory to store temp files in. Defaults to $ENV{TEMP} if set and '/tmp/' if not.

Being a plain text file, it can be run using the run_file api.

restore

Restores from a saved file. Must pass in the file name as a named argument.

Recognized arguments are:

file: Path to file
format: The specified format, for example c for custom. Defaults to plain text
log: Path to combined stderr/stdout log. If specified, do not specify other logs as this is unsupported.
errlog: Path to error log to store stderr output
stdout_log: Path to where to log standard output

drop

Drops the database. This is not recoverable.

AUTHOR

Chris Travers, "<chris at efficito.com>"

Please report any bugs or feature requests to "bug-pgobject-util-dbadmin at rt.cpan.org", or through the web interface at <http://rt.cpan.org/NoAuth/ReportBug.html?Queue=PGObject-Util-DBAdmin>. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.

SUPPORT

You can find documentation for this module with the perldoc command.

    perldoc PGObject::Util::DBAdmin

You can also look for information at:

RT: CPAN's request tracker (report bugs here)
<http://rt.cpan.org/NoAuth/Bugs.html?Dist=PGObject-Util-DBAdmin>
AnnoCPAN: Annotated CPAN documentation
<http://annocpan.org/dist/PGObject-Util-DBAdmin>
CPAN Ratings
<http://cpanratings.perl.org/d/PGObject-Util-DBAdmin>
Search CPAN
<http://search.cpan.org/dist/PGObject-Util-DBAdmin/>

LICENSE AND COPYRIGHT

This program is distributed under the (Revised) BSD License: <http://www.opensource.org/licenses/BSD-3-Clause>

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

* Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

* Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

* Neither the name of Chris Travers's Organization nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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