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package SL::Webdav::File;
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use strict;
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use parent qw(Rose::Object);
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use File::Spec;
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use Rose::Object::MakeMethods::Generic (
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scalar => [ qw(webdav filename loaded) ],
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array => [
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qw(objects),
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add_objects => { interface => 'push', hash_key => 'objects' },
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],
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);
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sub versions {
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$_[0]->load unless $_[0]->loaded;
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my $cmp = $_[0]->webdav->version_scheme->cmp;
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sort { $cmp->($a, $b) } $_[0]->objects;
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}
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sub latest_version {
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($_[0]->versions)[-1]
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}
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sub load {
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my ($self) = @_;
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my @objects = $self->webdav->get_all_objects;
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my $ref = SL::Webdav::Object->new(filename => $self->filename, webdav => $self->webdav);
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my ($ref_basename, undef, $ref_extension) = $ref->parse_filename;
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$self->objects(grep { $_->basename eq $ref_basename && $_->extension eq $ref_extension } @objects);
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$self->loaded(1);
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}
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sub store {
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my ($self, %params) = @_;
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$self->load unless $self->loaded;
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my $last = $self->latest_version;
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my $object;
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if (!$last) {
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my $new_version = $self->webdav->version_scheme->first_version;
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$object = SL::Webdav::Object->new(filename => $self->filename, webdav => $self->webdav);
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$self->add_objects($object);
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} else {
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if (!$self->webdav->version_scheme->keep_last_version($last)) {
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$params{new_version} = 1;
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}
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if ($params{new_version}) {
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my $new_version = $self->webdav->version_scheme->next_version($last);
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my $sep = $self->webdav->version_scheme->separator;
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my $new_filename = $last->basename . $sep . $new_version . "." . $last->extension;
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$object = SL::Webdav::Object->new(filename => $new_filename, webdav => $self->webdav);
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$self->add_objects($object);
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} else {
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$object = $last;
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}
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}
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open my $fh, '>:raw', $object->full_filedescriptor or die "could not open " . $object->filename . ": $!";
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$fh->print(${ $params{data} });
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close $fh;
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return $object;
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}
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1;
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__END__
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=encoding utf-8
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=head1 NAME
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SL::Webdav::File - Webdav file manipulation
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=head1 SYNOPSIS
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use SL::Webdav::File;
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my $webdav_file = SL::Webdav::File->new(
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webdav => $webdav, # SL::Webdav instance
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filename => 'technical_drawing_AB28375.pdf',
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);
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# get existing versioned files
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my @webdav_objects = $webdav_file->versions;
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# store new version
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my $data = SL::Helper::CreatePDF->create_pdf(...);
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my $webdav_object = $webdav_file->store(data => \$data);
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# force new version
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my $webdav_object = $webdav_file->store(data => \$data, new_version => 1);
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=head1 DESCRIPTION
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A file in this context is the collection of all versions of a single file saved
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into the webdav. This module provides methods to access and manipulate these
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objects.
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=head1 FUNCTIONS
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=over 4
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=item C<versions>
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Will return all L<SL::Webdav::Object>s found in this file, sorted by version
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according to the version scheme used.
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=item C<latest_version>
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Returns only the latest version object.
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=item C<load>
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Loads objects from disk.
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=item C<store PARAMS>
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Store a new version on disk. C<data> is expected to contain a reference to the
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data to be written in raw encoding.
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If param C<new_version> is set, force a new version, even if the versioning
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scheme would keep the old one.
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=back
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=head1 SEE ALSO
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L<SL::Webdav>, L<SL::Webdav::Object>
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=head1 BUGS
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None yet :)
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=head1 AUTHOR
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Sven Schöling E<lt>s.schoeling@linet-services.deE<gt>
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=cut
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