lib/MojoFacets/Data.pm

   1 package MojoFacets::Data;
   2
   3 use strict;
   4 use warnings;
   5
   6 use base 'Mojolicious::Controller';
   7
   8 use Data::Dump qw(dump);
   9 use File::Slurp;
  10 use JSON;
  11 use Encode;
  12 use locale;
  13 use File::Find;
  14 use Storable;
  15 use Time::HiRes qw(time);
  16
  17 our $loaded;
  18 our $filters;
  19
  20 sub index {
  21         my $self = shift;
  22
  23         my $path = $self->app->home->rel_dir('data');
  24         die "no data dir $path" unless -d $path;
  25
  26         my @files;
  27         my $edits;
  28         find( sub {
  29                 my $file = $File::Find::name;
  30                 if ( -f $file && $file =~ m/\.(js(on)?|txt)$/ ) {
  31                         $file =~ s/$path\/*//;
  32                         push @files, $file;
  33                 } elsif ( -f $file && $file =~ m/([^\/]+)\.edits\/(\d+\.\d+.+)/ ) {
  34                         push @{ $edits->{$1} }, $2
  35                 } else {
  36                         warn "IGNORE: $file\n";
  37                 }
  38         }, $path);
  39
  40         @files = sort { lc $a cmp lc $b } @files;
  41         my $size;
  42         $size->{$_} = -s "$path/$_" foreach @files;
  43
  44         if ( my $save_path = $self->session('save_path') ) {
  45                 $self->session( 'save_path' => 0 )
  46                 if ! defined $loaded->{$save_path};
  47         }
  48
  49         $self->render(
  50                 files => [ @files ],
  51                 size => $size,
  52                 loaded => $loaded,
  53                 filters => $filters,
  54                 dump_path => { map { $_ => $self->_dump_path($_) } @files },
  55                 edits => $edits,
  56         );
  57 }
  58
  59 sub _dump_path {
  60         my ( $self, $name ) = @_;
  61         my $dir = $self->app->home->rel_dir('data');
  62         $name =~ s/^$dir//;
  63         $name =~ s/\/+/_/g;
  64         return '/tmp/mojo_facets.' . $name . '.storable';
  65 }
  66
  67 sub _save {
  68         my ( $self, $path ) = @_;
  69
  70         my $dump_path = $self->_dump_path( $path );
  71         my $first_load = ! -e $dump_path;
  72         warn "save loaded to $dump_path";
  73         my $info = $loaded->{$path};
  74         store $info, $dump_path;
  75
  76         if ( $first_load ) {
  77                 my $mtime = $loaded->{$path}->{mtime};
  78                 utime $mtime, $mtime, $dump_path;
  79                 warn "sync time to $path at $mtime\n";
  80         }
  81
  82         warn $dump_path, ' ', -s $dump_path, " bytes\n";
  83         return $dump_path;
  84 }
  85
  86
  87 sub __stats {
  88
  89         my $stats;
  90
  91         my $nr_items = $#{ $_[0] } + 1;
  92
  93         foreach my $e ( @{ $_[0] } ) {
  94                 foreach my $n ( keys %$e ) {
  95                         $stats->{$n}->{count}++;
  96                         my @v;
  97                         if ( ref $e->{$n} eq 'ARRAY' ) {
  98                                 $stats->{$n}->{array} += $#{ $e->{$n} } + 1;
  99                                 @v = @{ $e->{$n} };
 100                         } else {
 101                                 @v = ( $e->{$n} );
 102                         }
 103
 104                         foreach my $x ( @v ) {
 105                                 $stats->{$n}->{numeric}++
 106                                         if $x =~ m/^[-+]?([0-9]*\.[0-9]+|[0-9]+)$/;
 107                                 $stats->{$n}->{empty}++
 108                                         if length $x == 0; # faster than $x =~ m/^\s*$/;
 109                         }
 110
 111                 }
 112         }
 113
 114         foreach my $n ( keys %$stats ) {
 115                 my $s = $stats->{$n};
 116                 next unless defined $s->{array};
 117                 if ( $s->{array} == $s->{count} ) {
 118                         delete $s->{array};
 119                         if ( $s->{count} == $nr_items ) {
 120                                 warn "check $n for uniqeness\n";
 121                                 my $unique;
 122                                 foreach my $e ( @{ $_[0] } ) {
 123                                         if ( ++$unique->{ $e->{$n}->[0] } == 2 ) {
 124                                                 $unique = 0;
 125                                                 last;
 126                                         }
 127                                 }
 128                                 if ( $unique ) {
 129                                         $stats->{$n}->{unique} = 1;
 130                                         warn "# $n unique ",dump( $unique );
 131                                 }
 132                         }
 133                 }
 134         }
 135
 136         warn "# __stats ",dump($stats);
 137
 138         return $stats;
 139 }
 140
 141 sub _param_or_session {
 142         $_[0]->param( $_[1] ) || $_[0]->session( $_[1] )
 143 }
 144
 145 sub stats {
 146         my $self = shift;
 147         my $path = $self->_param_or_session('path');
 148         $loaded->{$path}->{stats} = __stats( $loaded->{$path}->{data}->{items} );
 149         $self->redirect_to( '/data/columns' );
 150 }
 151
 152
 153 sub _load_path {
 154         my ( $self, $path ) = @_;
 155
 156         my $full_path = $self->app->home->rel_file( 'data/' . $path );
 157         die "$full_path $!" unless -r $full_path;
 158
 159         my $dump_path = $self->_dump_path( $path );
 160
 161         if ( defined $loaded->{$path}->{data} ) {
 162                 my $mtime = (stat($full_path))[9];
 163                 return if $loaded->{$path}->{mtime} == $mtime;
 164                 warn "reload $full_path, modified ", time() - $mtime, " seconds ago\n";
 165         } elsif ( -e $dump_path ) {
 166                 warn "dump_path $dump_path ", -s $dump_path, " bytes loading...\n";
 167                 my $info = retrieve $dump_path;
 168                 $loaded->{ $path } = $info;
 169                 return;
 170         }
 171
 172         # we could use Mojo::JSON here, but it's too slow
 173 #       $data = from_json read_file $path;
 174         my $data = read_file $full_path;
 175         warn "# data snippet: ", substr($data,0,200);
 176         my @header;
 177         if ( $path =~ m/\.js/ ) {
 178                 Encode::_utf8_on($data);
 179                 $data = from_json $data;
 180         } elsif ( $path =~ m/\.txt/ ) {
 181                 my @lines = split(/\r?\n/, $data);
 182                 $data = { items => [] };
 183
 184                 my $header_line = shift @lines;
 185                 my $multiline = $header_line =~ s/\^//g;
 186                 @header = split(/\|/, $header_line );
 187                 warn "# header ", dump( @header );
 188                 while ( my $line = shift @lines ) {
 189                         $line =~ s/\^//g;
 190                         chomp $line;
 191                         my @v = split(/\|/, $line);
 192                         while ( @lines && $#v < $#header ) {
 193                                 $line = $lines[0];
 194                                 $line =~ s/\^//g;
 195                                 chomp $line;
 196                                 my @more_v = split(/\|/, $line);
 197                                 if ( $#v + $#more_v > $#header ) {
 198                                         warn "short line: ",dump( @v );
 199                                         last;
 200                                 }
 201                                 shift @lines;
 202                                 $v[ $#v ] .= shift @more_v if @more_v;
 203                                 push @v, @more_v if @more_v;
 204
 205                                 if ( $#v > $#header ) {
 206                                         die "# splice $#header ", dump( @v );
 207                                         @v = splice @v, 0, $#header;
 208                                 }
 209                         }
 210                         my $item;
 211                         foreach my $i ( 0 .. $#v ) {
 212                                 $item->{ $header[$i] || "f_$i" } = [ $v[$i] ];
 213                         }
 214                         push @{ $data->{items} }, $item;
 215                 }
 216         } else {
 217                 warn "file format unknown $path";
 218         }
 219
 220         my $stats = __stats( $data->{items} );
 221
 222         if ( ! @header ) {
 223                 if ( defined $data->{header} ) {
 224                         if ( ref $data->{header} eq 'ARRAY' ) {
 225                                 @header = @{ $data->{header} };
 226                         } else {
 227                                 warn "header not array ", dump( $data->{header} );
 228                         }
 229                 }
 230         }
 231
 232         @header =
 233                 sort { $stats->{$b}->{count} <=> $stats->{$a}->{count} }
 234                 grep { defined $stats->{$_}->{count} } keys %$stats
 235                 unless @header;
 236
 237         my $info = {
 238                 header => [ @header ],
 239                 stats  => $stats,
 240                 full_path => $full_path,
 241                 size => -s $full_path,
 242                 mtime => (stat($full_path))[9],
 243                 data => $data,
 244         };
 245
 246         $loaded->{ $path } = $info;
 247         $self->_save( $path );
 248
 249 }
 250
 251
 252 sub load {
 253         my $self = shift;
 254
 255         my @paths = $self->param('paths');
 256         warn "# paths ", dump @paths;
 257         $self->_load_path( $_ ) foreach @paths;
 258
 259         my $path = $self->param('path') || $self->redirect_to( '/data/index' );
 260         warn "# path $path\n";
 261         $self->session('path' => $path);
 262         $self->_load_path( $path );
 263
 264         $self->session( 'header' => $loaded->{$path}->{header} );
 265         if ( ! defined $loaded->{$path}->{columns} ) {
 266                 $self->session( 'columns' => $loaded->{$path}->{header} );
 267                 $self->session( 'order'   => $loaded->{$path}->{header}->[0] );
 268                 $self->redirect_to( '/data/columns' );
 269         } else {
 270                 $self->session( 'columns' => $loaded->{$path}->{columns} );
 271                 $self->session( 'order'   => $loaded->{$path}->{columns}->[0] );
 272                 $self->redirect_to( '/data/items' );
 273         }
 274 }
 275
 276
 277 sub _loaded {
 278         my ( $self, $name ) = @_;
 279         my $path = $self->session('path') || $self->param('path');
 280         $self->redirect_to('/data/index') unless $path;
 281         if ( ! defined $loaded->{$path}->{$name} ) {
 282                 warn "$path $name isn't loaded\n";
 283                 $self->_load_path( $path );
 284                 $self->redirect_to('/data/index')
 285                         unless defined $loaded->{$path}->{$name};
 286         }
 287         return $loaded->{$path}->{$name};
 288 }
 289
 290
 291 sub _checked {
 292         my $self = shift;
 293         my $checked;
 294         $checked->{$_}++ foreach @_;
 295 #       warn "# _checked ",dump($checked);
 296         return $checked;
 297 }
 298
 299
 300 sub columns {
 301     my $self = shift;
 302
 303         if ( $self->param('columns') ) {
 304                 $self->_param_array('columns');
 305                 $self->redirect_to('/data/items');
 306         }
 307
 308         my $stats = $self->_loaded( 'stats' );
 309
 310         my @columns;
 311         @columns = grep { defined $stats->{$_}->{count} } @{ $self->session('columns') } if $self->session('columns');
 312
 313         foreach my $c ( @{ $self->session( 'header' ) } ) {
 314                 push @columns, $c unless grep { /^\Q$c\E$/ } @columns;
 315         }
 316
 317     $self->render(
 318                 message => 'Select columns to display',
 319                 stats => $stats,
 320                 columns => \@columns,
 321                 checked => $self->_checked( $self->_param_array('columns') ),
 322         );
 323 }
 324
 325 sub _param_array {
 326     my ($self,$name) = @_;
 327
 328         my @array = $self->param($name);
 329         my $path  = $self->session('path');
 330
 331         if ( @array ) {
 332                 $self->session($name => [ @array ]);
 333                 $loaded->{$path}->{$name} = [ @array ];
 334         } elsif ( my $session = $self->session($name) ) {
 335                 if ( ref $session eq 'ARRAY' ) {
 336                         @array = @$session;
 337                 } else {
 338                         die "$name not array ",dump($session);
 339                 }
 340         }
 341         #warn "# $name ",dump @array;
 342         return @array;
 343 }
 344
 345 sub _param_scalar {
 346     my ($self,$name,$default) = @_;
 347
 348         my $scalar = $self->param($name);
 349
 350         if ( defined $scalar ) {
 351                 $self->session($name => $scalar);
 352         } else {
 353                 $scalar = $self->session($name);
 354         }
 355
 356         if ( ! defined $scalar ) {
 357                 $scalar = $default;
 358                 die "no default for $name" unless defined $scalar;
 359                 $self->session($name => $scalar);
 360         }
 361
 362         warn "# _perm_scalar $name ",dump $scalar;
 363         return $scalar;
 364 }
 365
 366 sub filter {
 367         my $self = shift;
 368
 369         my $name = $self->param('filter_name') || die "name?";
 370         my @vals = $self->param('filter_vals');
 371
 372         $self->_remove_filter( $name );
 373         $self->_filter_on_data( $name, @vals ) if @vals;
 374
 375         $self->session( 'offset' => 0 );
 376
 377         $self->redirect_to('/data/items');
 378 }
 379
 380 sub _filter_on_data {
 381         my ( $self, $name, @vals ) = @_;
 382
 383         my $path = $self->session('path');
 384
 385         if ( ! defined $loaded->{$path}->{stats}->{ $name } ) {
 386                 warn "filter $name not found in data set";
 387                 return;
 388         }
 389
 390         $filters->{$name} = [ @vals ];
 391         warn "_filter_on_data $name ", $#vals + 1, " values on $path\n";
 392
 393         my $filter_hash;
 394         $filter_hash->{$_}++ foreach @vals;
 395
 396         #warn "# filter_hash ",dump( $filter_hash );
 397
 398         my $items = $self->_loaded('data')->{items};
 399
 400         my $include_missing = defined $filter_hash->{_missing};
 401         my $filtered_items;
 402
 403         foreach my $i ( 0 .. $#$items ) {
 404
 405                 if ( defined $items->[$i]->{$name} ) {
 406                         foreach my $v ( @{ $items->[$i]->{$name} } ) {
 407                                 if ( defined $filter_hash->{ $v } ) {
 408                                         $filtered_items->{$i}++;
 409                                 }
 410                         }
 411                 } elsif ( $include_missing ) {
 412                         $filtered_items->{$i}++;
 413                 }
 414         }
 415
 416         #warn "# filter $name ",dump($filtered_items);
 417
 418         $loaded->{$path}->{filters}->{$name} = $filtered_items;
 419         warn "filter $name with ", scalar keys %$filtered_items, " items created\n";
 420 }
 421
 422 sub _data_items {
 423         my ( $self, $all ) = @_;
 424         my $data = $self->_loaded( 'data' );
 425
 426         return @{ $data->{items} } if $all == 1;
 427
 428         my $filters = $self->_current_filters;
 429         my $filter_value;
 430         foreach my $f ( keys %$filters ) {
 431                 foreach my $n ( @{ $filters->{$f} } ) {
 432                         $filter_value->{$f}->{$n} = 1;
 433                 }
 434         }
 435         my @items = @{ $data->{items} };
 436         @items = grep {
 437                 my $i = $_;
 438                 my $pass = 1;
 439                 foreach my $n ( keys %$filter_value ) {
 440                         if ( ! exists $i->{$n} ) {
 441                                 if ( defined $filter_value->{$n}->{_missing} ) {
 442                                         $pass = 1;
 443                                         next;
 444                                 } else {
 445                                         $pass = 0;
 446                                         last;
 447                                 }
 448                         }
 449                         # and match any of values in element
 450                         my $have_values = 0;
 451                         foreach my $v ( @{ $i->{$n} } ) { # FIXME not array?
 452                                 $have_values ||= 1 if defined $filter_value->{$n}->{$v};
 453                         }
 454                         if ( ! $have_values ) {
 455                                 $pass = 0;
 456                                 last;
 457                         }
 458                 }
 459                 $pass;
 460         } @items if $filter_value;
 461         return @items;
 462 }
 463
 464
 465 sub _current_filters {
 466         my $self = shift;
 467         my $current_filters;
 468         $current_filters->{ $_ } = $filters->{ $_ }
 469                 foreach (
 470                         grep { defined $filters->{ $_ } }
 471                         @{ $self->_loaded('header') }
 472                 );
 473         #warn "# current_filters ",dump($current_filters);
 474         return $current_filters;
 475 }
 476
 477 sub _data_sorted_by {
 478         my ( $self, $order ) = @_;
 479
 480         my $path = $self->session('path');
 481
 482         warn "_data_sorted_by $order from $path";
 483
 484         if ( defined $loaded->{$path}->{sorted}->{$order} ) {
 485                 return $loaded->{$path}->{sorted}->{$order};
 486         }
 487
 488         my $data = $self->_loaded( 'data' );
 489         my $numeric = $self->_is_numeric($order);
 490         my $missing = $numeric ? 0 : '';
 491         no warnings qw(numeric);
 492         my $nr = 0;
 493         my @sorted = map {
 494                 $_->[0]
 495         } sort {
 496                 if ( $numeric ) {
 497                         $a->[1] <=> $b->[1]
 498                 } else {
 499                         $a->[1] cmp $b->[1]
 500                 }
 501         } map {
 502                 [ $nr++, exists $_->{$order} ? join('', @{$_->{$order}}) : $missing ]
 503         } @{ $data->{items} }
 504         ;
 505
 506         warn "sorted: $order numeric: $numeric items: ", $#sorted + 1, "\n";
 507         #warn "# sorted ",dump( @sorted );
 508
 509         $loaded->{$path}->{sorted}->{$order} = [ @sorted ];
 510 }
 511
 512
 513 sub items {
 514         my $self = shift;
 515
 516         my $path = $self->session('path');
 517         $self->redirect_to('/data/index') unless defined $loaded->{ $path };
 518
 519         my @columns = $self->_param_array('columns');
 520         $self->redirect_to('/data/columns') unless @columns;
 521         my $order   = $self->_param_scalar('order', $columns[0]);
 522         my $sort    = $self->_param_scalar('sort', 'a');
 523         my $offset  = $self->_param_scalar('offset', 0);
 524         my $limit   = $self->_param_scalar('limit', 20);
 525         $self->_param_scalar('show', 'table');
 526
 527         # fix offset when changing limit
 528         $offset = int( $offset / $limit ) * $limit;
 529
 530         my $sorted = $self->_data_sorted_by( $order );
 531
 532         my @filter_names;
 533         if ( $filters ) {
 534                 foreach my $name ( keys %$filters ) {
 535                         if ( ! defined $loaded->{$path}->{stats}->{ $name } ) {
 536                                 warn "skip filter $name not found in $path\n";
 537                                 next;
 538                         }
 539                         push @filter_names, $name;
 540                 }
 541                 warn "filter_names ",dump( @filter_names );
 542                 foreach my $name ( @filter_names ) {
 543                         next if ref $loaded->{$path}->{filters}->{$name} eq 'ARRAY';
 544                         $self->_filter_on_data( $name, @{ $filters->{$name} } );
 545                 }
 546         }
 547
 548         my $all_filters = join(' ',sort @filter_names,'order:',$order);
 549
 550 #       warn "# all_filters $all_filters ", dump( $loaded->{$path}->{filtered}->{$all_filters} );
 551
 552         if ( ! defined $loaded->{$path}->{filtered}->{$all_filters} ) {
 553
 554                 my $path_filters = $loaded->{$path}->{filters};
 555
 556                 warn "create combined filter for $all_filters\n";
 557
 558                 my @filtered;
 559                 foreach my $i ( 0 .. $#$sorted ) {
 560                         my $pos = $sorted->[$i];
 561
 562                         if ( $#filter_names == -1 ) {
 563                                 push @filtered, $pos;
 564                                 next;
 565                         }
 566
 567                         my $skip = 0;
 568                         foreach ( @filter_names ) {
 569                                 $skip ||= 1 if ! defined $path_filters->{$_}->{$pos};
 570                         }
 571                         next if $skip;
 572
 573                         push @filtered, $pos;
 574                 }
 575
 576                 $loaded->{$path}->{filtered}->{$all_filters} = [ @filtered ];
 577         }
 578
 579         my $filtered = $loaded->{$path}->{filtered}->{$all_filters}
 580                 if defined $loaded->{$path}->{filtered}->{$all_filters};
 581
 582         warn "all_filters $all_filters produced ", $#$filtered + 1, " items\n" if $filtered;
 583
 584         my $sorted_items;
 585         my $data = $self->_loaded('data');
 586         my $from_end = $sort eq 'd' ? $#$filtered : 0;
 587         foreach ( 0 .. $limit ) {
 588                 my $i = $_ + $offset;
 589                 last unless defined $filtered->[$i];
 590                 $i = $from_end - $i if $from_end;
 591                 my $id = $filtered->[$i];
 592                 push @$sorted_items,
 593                 my $item = $data->{items}->[ $id ];
 594                 $item->{_row_id} ||= $id;
 595         }
 596
 597         warn "# sorted_items ", $#$sorted_items + 1, " offset $offset limit $limit order $sort";
 598
 599         $self->render(
 600                 order => $order,
 601                 offset => $offset,
 602                 limit => $limit,
 603                 sorted => $sorted_items,
 604                 columns => [ @columns ],
 605                 rows => $#$filtered + 1,
 606                 numeric => { map { $_, $self->_is_numeric($_) } @columns },
 607                 filters => $self->_current_filters,
 608         );
 609
 610 }
 611
 612
 613 sub order {
 614         my $self = shift;
 615         $self->session('order', $self->param('order'));
 616         $self->session('sort', $self->param('sort'));
 617         $self->redirect_to('/data/items');
 618 }
 619
 620 sub _is_numeric {
 621         my ( $self, $name ) = @_;
 622
 623         my $stats = $self->_loaded( 'stats' );
 624
 625         # sort facet numerically if more >50% elements are numeric
 626         my $count = $stats->{$name}->{count};
 627         $count   -= $stats->{$name}->{empty} if defined $stats->{$name}->{empty};
 628         defined $stats->{$name}->{numeric} &&
 629                 $stats->{$name}->{numeric} > $count / 2;
 630 }
 631
 632 sub _remove_filter {
 633         my ($self,$name) = @_;
 634         warn "_remove_filter $name\n";
 635
 636         my $path = $self->session('path');
 637
 638         delete $filters->{$name};
 639         delete $loaded->{$path}->{filters}->{$name};
 640         warn "filters left: ", keys %{ $loaded->{$path}->{filters} };
 641
 642         foreach (
 643                         grep { /\b$name\b/ }
 644                         keys %{ $loaded->{$path}->{filtered} }
 645         ) {
 646                 delete $loaded->{$path}->{filtered}->{$_};
 647                 warn "remove filtered cache $_";
 648         }
 649 }
 650
 651 sub facet {
 652         my $self = shift;
 653
 654         my $path = $self->session('path') || $self->redirect_to( '/data/index' );
 655
 656         if ( my $name = $self->param('remove') ) {
 657                 $self->_remove_filter( $name );
 658                 $self->redirect_to( '/data/items' );
 659         }
 660
 661         my $facet;
 662         my $name = $self->param('name') || die "no name";
 663
 664         my $all = $self->_param_scalar('all', 1);
 665         my $data = $self->_loaded('data');
 666
 667         my $filters = $self->_current_filters;
 668         my $all_filters = join(' ',sort keys %$filters,'order:',$self->session('order'));
 669         my $filtered = $loaded->{$path}->{filtered}->{$all_filters}
 670                 if defined $loaded->{$path}->{filtered}->{$all_filters};
 671
 672         if ( ! $filtered || $all ) {
 673                 $filtered = [ 0 .. $#{ $data->{items} } ];
 674                 warn "filter all values\n";
 675         } else {
 676                 warn "filter using $all_filters\n";
 677         }
 678
 679         foreach my $i ( @$filtered ) {
 680                 my $item = $data->{items}->[$i];
 681                 if ( ! exists $item->{$name} ) {
 682                         $facet->{ _missing }++;
 683                 } elsif ( ref $item->{$name} eq 'ARRAY' ) {
 684                         $facet->{$_}++ foreach @{ $item->{$name} };
 685                 } else {
 686                         $facet->{ $item->{$name} }++;
 687                 }
 688         }
 689
 690 #       warn "# facet $name ",dump $facet;
 691
 692         my $checked;
 693         my @facet_names =
 694                   $all                      ? keys %$facet
 695                 : defined $filters->{$name} ? @{ $filters->{$name} }
 696                 : keys %$facet;
 697
 698         $checked = $self->_checked( @{ $filters->{$name} } ) if defined $filters->{$name};
 699
 700         my $numeric = $self->_is_numeric($name);
 701
 702         my $sort = $self->param('sort');
 703         # sort numeric facets with more than 5 values ascending
 704         $sort ||= $numeric && $#facet_names > 4 ? 'a' : 'c';
 705
 706         @facet_names = sort {
 707                 my $result;
 708                 if ( $sort eq 'a' ) {
 709                         $result = $numeric ? $a <=> $b : lc $a cmp lc $b;
 710                 } elsif ( $sort eq 'd' ) {
 711                         $result = $numeric ? $b <=> $a : lc $b cmp lc $a;
 712                 } elsif ( $sort eq 'c' ) {
 713                         $result = ( $facet->{$b} || -1 ) <=> ( $facet->{$a} || -1 )
 714                 } else {
 715                         warn "unknown sort: $sort";
 716                         $result = $a cmp $b;
 717                 }
 718                 $result = $a cmp $b unless defined $result; # FIXME cludge for numeric facets with invalid data
 719                 $result;
 720         } @facet_names;
 721
 722         $self->render( name => $name, facet => $facet, checked => $checked,
 723                 facet_names => \@facet_names, sort => $sort, numeric => $numeric,
 724         );
 725 }
 726
 727 sub edit {
 728         my $self = shift;
 729         my $content = $self->param('content');
 730
 731         my $i = $self->param('_row_id');
 732         die "invalid _row_id ",dump($i) unless $i =~ m/^\d+$/;
 733         my $path = $self->param('path') || die "no path";
 734         my $name = $self->param('name') || die "no name";
 735         my $status = 200; # 200 = OK, 201 = Created
 736
 737         my $data = $self->_loaded('data');
 738
 739         if ( defined $loaded->{$path}->{data}->{items}->[$i] ) {
 740                 $content =~ s/^\s+//s;
 741                 $content =~ s/\s+$//s;
 742                 my $v;
 743                 if ( $content =~ /\xB6/ ) {     # para
 744                         $v = [ split(/\s*\xB6\s*/, $content) ];
 745                 } else {
 746                         $v = [ $content ];
 747                 }
 748
 749                 my $old = dump $loaded->{$path}->{data}->{items}->[$i]->{$name};
 750                 my $new = dump $v;
 751                 if ( $old ne $new
 752                         && ! ( $old eq 'undef' && length($content) == 0 ) # new value empty, previous undef
 753                 ) {
 754                         my $edit = {
 755                                 path => $path,
 756                                 column => $name,
 757                                 pos => $i,
 758                                 old => $loaded->{$path}->{data}->{items}->[$i]->{$name},
 759                                 new => $v,
 760                                 time => $self->param('time') || time(),
 761                                 user => $self->param('user') || $ENV{'LOGNAME'},
 762                                 unique => {
 763                                         map { $_ => $loaded->{$path}->{data}->{items}->[$i]->{$_}->[0] }
 764                                         grep { defined $loaded->{$path}->{stats}->{$_}->{unique} }
 765                                         keys %{ $loaded->{$path}->{stats} }
 766                                 },
 767                         };
 768                         my $edit_path = $self->app->home->rel_dir('data') . '/' . $path . '.edits';
 769                         mkdir $edit_path unless -d $edit_path;
 770                         $edit_path .= '/' . $edit->{time};
 771                         store $edit, $edit_path;
 772                         utime $edit->{time}, $edit->{time}, $edit_path;
 773                         warn "# $edit_path ", dump($edit);
 774
 775                         warn "# edit $path $i $old -> $new\n";
 776                         $loaded->{$path}->{data}->{items}->[$i]->{$name} = $v;
 777
 778                         if ( defined $loaded->{$path}->{sorted}->{$name} ) {
 779                             delete $loaded->{$path}->{sorted}->{$name};
 780                                 warn "# invalidate $path sorted $name\n";
 781                         }
 782
 783                         foreach ( grep { m/$name/ } keys %{ $loaded->{$path}->{filtered} } ) {
 784                             delete $loaded->{$path}->{filtered}->{$_};
 785                                 warn "# invalidate $path filtered $_\n";
 786                         }
 787
 788                         $status = 201; # created
 789                         $self->session('save_path' => $path);
 790
 791                 } else {
 792                         warn "# unchanged $path $i $old\n";
 793                         $status = 304;
 794                 }
 795         } else {
 796                 $content = "$path $i $name doesn't exist\n";
 797                 $status = 404;
 798         }
 799
 800         warn "# edit $status $content";
 801
 802         $self->render(
 803                 status => $status,
 804                 content => $content,
 805         );
 806 }
 807
 808
 809 sub save {
 810         my $self = shift;
 811         my $path = $self->_param_or_session('path');
 812         my $dump_path = $self->_save( $path );
 813         $self->session('save_path' => 0);
 814
 815         $self->redirect_to( '/data/items' );
 816 }
 817
 818 1;