Console: Hilfsfunktionen ptab() und pobj()

diff --git a/scripts/console b/scripts/console
index 239ed54..19db86b 100755 (executable)
--- a/scripts/console
+++ b/scripts/console
@@ -48,6 +48,7 @@ use SL::InstanceConfiguration;
 use SL::Locale;
 use SL::LXDebug;
 use Data::Dumper;
+use List::Util qw(max);
 
 # this is a cleaned up version of am.pl
 # it lacks redirection, some html setup and most of the authentication process.
@@ -129,6 +130,32 @@ sub pp {
   Data::Dumper::Dumper(@_);
 }
 
+sub ptab {
+  my @rows = ref($_[0]) eq 'ARRAY' ? @{ $_[0] } : @_;
+  return '<empty result set>' unless @rows;
+
+  my @columns = sort keys %{ $rows[0] };
+  my @widths  = map { max @{ $_ } } map { my $column = $_; [ length($column), map { length("" . ($_->{$column} // '')) } @rows ] } @columns;
+  my @output  = (join ' | ', map { my $width = $widths[$_]; sprintf "\%-${width}s", $columns[$_] } (0..@columns - 1));
+  push @output, join('-+-', map { '-' x $_ } @widths);
+  push @output, map { my $row = $_; join(' | ', map { my $width = $widths[$_]; sprintf "\%-${width}s", $row->{ $columns[$_] } // '' } (0..@columns - 1) ) } @rows;
+
+  return join("\n", @output);
+}
+
+sub pobj {
+  my ($obj) = @_;
+  return '<no object>' unless $obj;
+
+  my $ref        =  ref $obj;
+  $ref           =~ s/^SL::DB:://;
+  my %primaries  =  map { ($_ => 1) } $obj->meta->primary_key;
+  my @columns    =  map { "${_}:" . ($obj->$_ // 'UNDEF') } sort $obj->meta->primary_key;
+  push @columns,    map { "${_}:" . ($obj->$_ // 'UNDEF') } grep { !$primaries{$_} } sort map { $_->{name} } $obj->meta->columns;
+
+  return "<${ref} " . join(' ', @columns) . '>';
+}
+
 1;
 
 __END__
@@ -165,6 +192,30 @@ Currently C<pp> will set the Data::Dumper depth to 2, so if you need a
 different depth, you'll have to change that. A nice feature would be to
 configure that, or at least to be able to change it at runtime.
 
+=head2 ptab C<@data>
+
+Returns a tabular representation of C<@data>. C<@data> must be an
+array or array reference containing hash references. Column widths are
+calculated automatically.
+
+Undefined values are represented by an empty column.
+
+Example usage:
+
+    ptab($dbh->selectall_arrayref("SELECT * FROM employee", { Slice => {} }));
+
+=head2 pobj C<$obj>
+
+Returns a textual representation of the L<Rose::DB> instance
+C<$obj>. This includes the class name, then the primary key columns as
+name/value pairs and then all other columns as name/value pairs.
+
+Undefined values are represented by C<UNDEF>.
+
+Example usage:
+
+    pobj(SL::DB::Manager::Employee->find_by(login => 'demo'));
+
 =head2 lxinit C<login>
 
 Login into lx-office using a specified login. No password will be required, and