use strict;
carp 'InflateColumn::File has entered a deprecation cycle. This component '
.'has a number of architectural deficiencies that can quickly drive '
.'your filesystem and database out of sync and is not recommended '
.'for further use. It will be retained for backwards '
.'compatibility, but no new functionality patches will be accepted. '
.'Please consider using the much more mature and actively maintained '
.'DBIx::Class::InflateColumn::FS. You can set the environment variable '
.'DBIC_IC_FILE_NOWARN to a true value to disable this warning.'
unless $ENV{DBIC_IC_FILE_NOWARN};
__PACKAGE__->load_components(qw/InflateColumn/);
sub register_column {
my ($self, $column, $info, @rest) = @_;
$self->next::method($column, $info, @rest);
return unless defined($info->{is_file_column});
$self->inflate_column($column => {
inflate => sub {
my ($value, $obj) = @_;
$obj->_inflate_file_column($column, $value);
},
deflate => sub {
my ($value, $obj) = @_;
$obj->_save_file_column($column, $value);
},
});
}
sub _file_column_file {
my ($self, $column, $filename) = @_;
my $column_info = $self->column_info($column);
return unless $column_info->{is_file_column};
my $id = $self->id || $self->throw_exception(
'id required for filename generation'
);
$filename ||= $self->$column->{filename};
return Path::Class::file(
$column_info->{file_column_path}, $id, $filename,
);
}
sub delete {
my ( $self, @rest ) = @_;
for ( $self->columns ) {
if ( $self->column_info($_)->{is_file_column} ) {
rmtree( [$self->_file_column_file($_)->dir], 0, 0 );
last; # if we've deleted one, we've deleted them all
}
}
return $self->next::method(@rest);
}
sub insert {
my $self = shift;
# cache our file columns so we can write them to the fs
# -after- we have a PK
my %file_column;
for ( $self->columns ) {
if ( $self->column_info($_)->{is_file_column} ) {
$file_column{$_} = $self->$_;
$self->store_column($_ => $self->$_->{filename});
}
}
$self->next::method(@_);
# write the files to the fs
while ( my ($col, $file) = each %file_column ) {
$self->_save_file_column($col, $file);
}
return $self;
}
sub _inflate_file_column {
my ( $self, $column, $value ) = @_;
my $fs_file = $self->_file_column_file($column, $value);
return { handle => $fs_file->open('r'), filename => $value };
}
sub _save_file_column {
my ( $self, $column, $value ) = @_;
return unless ref $value;
my $fs_file = $self->_file_column_file($column, $value->{filename});
mkpath [$fs_file->dir];
# File::Copy doesn't like Path::Class (or any for that matter) objects,
File::Copy::copy($value->{handle}, $fs_file->stringify);
$self->_file_column_callback($value, $self, $column);
return $value->{filename};
}
=head1 NAME
DBIx::Class::InflateColumn::File - DEPRECATED (superseded by DBIx::Class::InflateColumn::FS)
=head2 Deprecation Notice
This component has a number of architectural deficiencies that can quickly
drive your filesystem and database out of sync and is not recommended for
further use. It will be retained for backwards compatibility, but no new
functionality patches will be accepted. Please consider using the much more
mature and actively supported DBIx::Class::InflateColumn::FS. You can set
the environment variable DBIC_IC_FILE_NOWARN to a true value to disable
this warning.
=head1 SYNOPSIS
In your L<DBIx::Class> table class:
use base 'DBIx::Class::Core';
__PACKAGE__->load_components(qw/InflateColumn::File/);
# define your columns
__PACKAGE__->add_columns(
"id",
{
data_type => "integer",
is_auto_increment => 1,
is_nullable => 0,
size => 4,
},
"filename",
{
data_type => "varchar",
is_file_column => 1,
file_column_path =>'/tmp/uploaded_files',
# or for a Catalyst application
# file_column_path => MyApp->path_to('root','static','files'),
default_value => undef,
is_nullable => 1,
size => 255,
},
);
In your L<Catalyst::Controller> class:
FileColumn requires a hash that contains L<IO::File> as handle and the file's
name as name.
my $entry = $c->model('MyAppDB::Articles')->create({
subject => 'blah',
filename => {
handle => $c->req->upload('myupload')->fh,
filename => $c->req->upload('myupload')->basename
},
body => '....'
});
$c->stash->{entry}=$entry;
And Place the following in your TT template
Article Subject: [% entry.subject %]
Uploaded File:
<a href="/static/files/[% entry.id %]/[% entry.filename.filename %]">File</a>
Body: [% entry.body %]
The file will be stored on the filesystem for later retrieval. Calling delete
on your resultset will delete the file from the filesystem. Retrevial of the
record automatically inflates the column back to the set hash with the
IO::File handle and filename.
=head1 DESCRIPTION
InflateColumn::File
=head1 METHODS
=head2 _file_column_callback ($file,$ret,$target)
Method made to be overridden for callback purposes.
=cut
sub _file_column_callback {}
=head1 AUTHOR
Victor Igumnov
=head1 LICENSE
This library is free software, you can redistribute it and/or modify
it under the same terms as Perl itself.
=cut
1;