CAD::Drawing::IO::PgDB 0.03

CAD::Drawing::IO::PgDB is a Perl module with PostgreSQL save / load methods.

This module is considered pre-ALPHA and under-documented. Its use is strongly discouraged except under experimental conditions. Particularly susceptible to change will be the table structure of the database, which currently does not yet even have any auto-create method.

Requisite Plug-in Functions

See CAD::Drawing::IO for a description of the plug-in architecture.

check_type

Returns true if $type is "circ" or $filename is a directory containing a ".circ" file.

$fact = check_type($filename, $type);

Back-End Input and output methods

The functions load() and save() are responsible for determining the filetype (with forced types available via $opt->{type}.) These then call the appropriate load< thing > or save< thing > functions.

load

Loads a CAD::Drawing object from an SQL database. $spec should be of the form required by the database driver.
$opts->{auth} = ["username", "password"] may be required to create a connection.

$drw->load($spec, $opts);

save

$drw->save($spec, $opts);

cleardb

Deletes the drawing and all of its entities from the database.

$drw->cleardb();

Internals

parse_options

Allows options to come in through the $spec or %opts.

%options = parse_options($spec, %opts);

sort_addr

Sorts through @addr_list and returns a hash of array references for each entity type.

%these = sort_addr($layer, @addr_list);

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Requirements:

· Perl