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