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 Encode;
  11 use locale;
  12 use File::Find;
  13 use Storable;
  14 use Time::HiRes qw(time);
  15 use File::Path qw(mkpath);
  16
  17 use MojoFacets::Import::File;
  18 use MojoFacets::Import::HTMLTable;
  19
  20 our $loaded;
  21 our $filters;
  22
  23 sub index {
  24         my $self = shift;
  25
  26         my $data_dir = $self->app->home->rel_dir('data');
  27         die "no data dir $data_dir" unless -d $data_dir;
  28
  29         my @files;
  30         my $changes;
  31         find( sub {
  32                 my $file = $File::Find::name;
  33                 if ( -f $file && $file =~ m/\.(js(on)?|txt)$/ ) {
  34                         $file =~ s/$data_dir\/*//;
  35                         push @files, $file;
  36                 } elsif ( -f $file && $file =~ m/([^\/]+)\.changes\/(\d+\.\d+.+)/ ) {
  37                         push @{ $changes->{$1} }, $2
  38                 } elsif ( -d $file && $file =~ m/\.html$/ ) {
  39                         $file =~ s/$data_dir\/*//;
  40                         push @files, $file;
  41                 } else {
  42                         warn "IGNORE: $file\n";
  43                 }
  44         }, $data_dir);
  45
  46         @files = sort { lc $a cmp lc $b } @files;
  47         my $size;
  48         $size->{$_} = -s "$data_dir/$_" foreach @files;
  49
  50         $self->render(
  51                 files => [ @files ],
  52                 size => $size,
  53                 loaded => $loaded,
  54                 filters => $filters,
  55                 dump_path => { map { $_ => $self->_dump_path($_) } @files },
  56                 changes => $changes,
  57         );
  58 }
  59
  60 sub _dump_path {
  61         my ( $self, $name ) = @_;
  62         my $dir = $self->app->home->rel_dir('data');
  63         $name =~ s/^$dir//;
  64         $name =~ s/\/+/_/g;
  65         return '/tmp/mojo_facets.' . $name . '.storable';
  66 }
  67
  68 sub _save {
  69         my ( $self, $path ) = @_;
  70
  71         my $dump_path = $self->_dump_path( $path );
  72         my $first_load = ! -e $dump_path;
  73         warn "save loaded to $dump_path";
  74         my $info = $loaded->{$path};
  75         store $info, $dump_path;
  76
  77         if ( $first_load ) {
  78                 my $mtime = $loaded->{$path}->{mtime};
  79                 utime $mtime, $mtime, $dump_path;
  80                 warn "sync time to $path at $mtime\n";
  81         }
  82
  83         warn $dump_path, ' ', -s $dump_path, " bytes\n";
  84         return $dump_path;
  85 }
  86
  87
  88 sub __stats {
  89
  90         my $stats;
  91
  92         my $nr_items = $#{ $_[0] } + 1;
  93
  94         warn "__stats $nr_items\n";
  95
  96         foreach my $e ( @{ $_[0] } ) {
  97                 foreach my $n ( keys %$e ) {
  98                         $stats->{$n}->{count}++;
  99                         my @v;
 100                         if ( ref $e->{$n} eq 'ARRAY' ) {
 101                                 $stats->{$n}->{array} += $#{ $e->{$n} } + 1;
 102                                 @v = @{ $e->{$n} };
 103                         } else {
 104                                 @v = ( $e->{$n} );
 105                         }
 106
 107                         foreach my $x ( @v ) {
 108                                 $stats->{$n}->{numeric}++
 109                                         if $x =~ m/^[-+]?([0-9]*\.[0-9]+|[0-9]+)$/;
 110                                 $stats->{$n}->{empty}++
 111                                         if length $x == 0; # faster than $x =~ m/^\s*$/;
 112                         }
 113
 114                 }
 115         }
 116
 117         foreach my $n ( keys %$stats ) {
 118                 my $s = $stats->{$n};
 119                 next unless defined $s->{array};
 120                 if ( $s->{array} == $s->{count} ) {
 121                         delete $s->{array};
 122                         if ( $s->{count} == $nr_items ) {
 123                                 warn "check $n for uniqeness\n";
 124                                 my $unique;
 125                                 foreach my $e ( @{ $_[0] } ) {
 126                                         if ( ++$unique->{ $e->{$n}->[0] } == 2 ) {
 127                                                 $unique = 0;
 128                                                 last;
 129                                         }
 130                                 }
 131                                 if ( $unique ) {
 132                                         $stats->{$n}->{unique} = 1;
 133                                         #warn "# $n unique ",dump( $unique );
 134                                 }
 135                         }
 136                 }
 137         }
 138
 139         warn "# __stats ",dump($stats);
 140
 141         return $stats;
 142 }
 143
 144 sub _param_or_session {
 145         $_[0]->param( $_[1] ) || $_[0]->session( $_[1] )
 146 }
 147
 148 sub stats {
 149         my $self = shift;
 150         my $path = $self->_param_or_session('path');
 151         warn "stats $path\n";
 152         delete $loaded->{$path}->{stats};
 153         $self->redirect_to( '/data/columns' );
 154 }
 155
 156
 157 sub _load_path {
 158         my ( $self, $path ) = @_;
 159
 160         my $full_path = $self->app->home->rel_file( 'data/' . $path );
 161         die "$full_path $!" unless -r $full_path;
 162
 163         my $dump_path = $self->_dump_path( $path );
 164
 165         if ( defined $loaded->{$path}->{data} ) {
 166                 my $mtime = (stat($full_path))[9];
 167                 return if $loaded->{$path}->{mtime} == $mtime;
 168                 warn "reload $full_path, modified ", time() - $mtime, " seconds ago\n";
 169         } elsif ( -e $dump_path ) {
 170                 warn "dump_path $dump_path ", -s $dump_path, " bytes loading...\n";
 171                 my $info = retrieve $dump_path;
 172                 $loaded->{ $path } = $info;
 173                 return;
 174         }
 175
 176         my $data;
 177         if ( -f $full_path ) {
 178                 $data = MojoFacets::Import::File->new( full_path => $full_path, path => $path )->data;
 179         } elsif ( -d $full_path && $full_path =~ m/.html/ ) {
 180                 $data = MojoFacets::Import::HTMLTable->new( dir => $full_path )->data;
 181         } else {
 182                 die "can't load $full_path";
 183         }
 184
 185         my @header;
 186
 187         if ( defined $data->{header} ) {
 188                 if ( ref $data->{header} eq 'ARRAY' ) {
 189                         @header = @{ $data->{header} };
 190                 } else {
 191                         warn "header not array ", dump( $data->{header} );
 192                 }
 193         }
 194
 195         my $stats = __stats( $data->{items} );
 196
 197         @header =
 198                 sort { $stats->{$b}->{count} <=> $stats->{$a}->{count} }
 199                 grep { defined $stats->{$_}->{count} } keys %$stats
 200                 unless @header;
 201
 202         my $info = {
 203                 header => [ @header ],
 204                 stats  => $stats,
 205                 full_path => $full_path,
 206                 size => -s $full_path,
 207                 mtime => (stat($full_path))[9],
 208                 data => $data,
 209         };
 210
 211         $loaded->{ $path } = $info;
 212         $self->_save( $path );
 213
 214 }
 215
 216
 217 sub load {
 218         my $self = shift;
 219
 220         my @paths = $self->param('paths');
 221         warn "# paths ", dump @paths;
 222         $self->_load_path( $_ ) foreach @paths;
 223
 224         my $path = $self->param('path') || $self->redirect_to( '/data/index' );
 225         warn "# path $path\n";
 226         $self->_load_path( $path );
 227
 228         $self->session( 'path' => $path );
 229
 230         my $redirect_to = '/data/items';
 231
 232         $self->session( 'header' => $loaded->{$path}->{header} );
 233         if ( ! defined $loaded->{$path}->{columns} ) {
 234                 my $columns_path = $self->_permanent_path( 'columns' );
 235                 if ( -e $columns_path ) {
 236                         my @columns = map { s/[\r\n]+$//; $_ } read_file $columns_path;
 237                         $loaded->{$path}->{columns} = [ @columns ];
 238                         warn "# columns_path $columns_path ",dump(@columns);
 239                 } else {
 240                         $loaded->{$path}->{columns} = $loaded->{$path}->{header}
 241                 }
 242
 243                 $redirect_to = '/data/columns';
 244         }
 245         $self->session( 'columns' => $loaded->{$path}->{columns} );
 246         $self->session( 'order'   => $loaded->{$path}->{columns}->[0] );
 247         $self->redirect_to( $redirect_to );
 248 }
 249
 250
 251 sub _loaded {
 252         my ( $self, $name ) = @_;
 253         my $path = $self->session('path') || $self->param('path');
 254         $self->redirect_to('/data/index') unless $path;
 255
 256         if ( $loaded->{$path}->{modified} > 1 ) {
 257                 my $caller = (caller(1))[3];
 258                 if ( $caller =~ m/::edit/ ) {
 259                         warn "rebuild stats for $path ignored caller $caller\n";
 260                 } else {
 261                         warn "rebuild stats for $path FORCED by modified caller $caller\n";
 262                         $loaded->{$path}->{stats} = __stats( $loaded->{$path}->{data}->{items} );
 263                         $loaded->{$path}->{modified} = 1;
 264                 }
 265         }
 266
 267         if ( ! defined $loaded->{$path}->{$name} ) {
 268                 warn "$path $name isn't loaded\n";
 269                 $self->_load_path( $path );
 270                 $self->redirect_to('/data/index')
 271                         unless defined $loaded->{$path}->{$name};
 272                 if ( ! defined $loaded->{$path}->{stats} ) {
 273                         warn "rebuild stats for $path\n";
 274                         $loaded->{$path}->{stats} = __stats( $loaded->{$path}->{data}->{items} );
 275                 }
 276         }
 277
 278         $self->session( 'modified' => $loaded->{$path}->{modified} );
 279
 280         return $loaded->{$path}->{$name};
 281 }
 282
 283
 284 sub _checked {
 285         my $self = shift;
 286         my $checked;
 287         $checked->{$_}++ foreach @_;
 288 #       warn "# _checked ",dump($checked);
 289         return $checked;
 290 }
 291
 292 sub _permanent_path {
 293         my $self = shift;
 294         my $path = $self->_param_or_session('path');
 295         $self->app->home->rel_dir('data') . '/' . join('.', $path, @_);
 296 }
 297
 298 sub _export_path {
 299         my $self = shift;
 300         my $path = $self->_param_or_session('path');
 301         if ( ! $path ) {
 302                 warn "no path in param or session";
 303                 return;
 304         }
 305         my $dir = $self->app->home->rel_dir('public') . "/export/$path";
 306         mkpath $dir unless -e $dir;
 307         $dir . '/' . join('.', @_);
 308 }
 309
 310 sub columns {
 311     my $self = shift;
 312
 313         if ( $self->param('columns') ) {
 314                 my @columns = $self->_param_array('columns');
 315                 write_file( $self->_permanent_path( 'columns' ), map { "$_\n" } @columns );
 316                 $self->redirect_to('/data/items');
 317         }
 318
 319         my $stats = $self->_loaded( 'stats' );
 320
 321         my @columns;
 322         @columns = grep { defined $stats->{$_}->{count} } @{ $self->session('columns') } if $self->session('columns');
 323
 324         foreach my $c ( @{ $self->session( 'header' ) } ) {
 325                 push @columns, $c unless grep { /^\Q$c\E$/ } @columns;
 326         }
 327
 328     $self->render(
 329                 message => 'Select columns to display',
 330                 stats => $stats,
 331                 columns => \@columns,
 332                 checked => $self->_checked( $self->_param_array('columns') ),
 333         );
 334 }
 335
 336 sub _param_array {
 337     my ($self,$name) = @_;
 338
 339         my @array = $self->param($name);
 340         my $path  = $self->session('path');
 341
 342         if ( @array ) {
 343                 $self->session($name => [ @array ]);
 344                 $loaded->{$path}->{$name} = [ @array ];
 345         } elsif ( my $session = $self->session($name) ) {
 346                 if ( ref $session eq 'ARRAY' ) {
 347                         @array = @$session;
 348                 } else {
 349                         die "$name not array ",dump($session);
 350                 }
 351         }
 352         #warn "# $name ",dump @array;
 353         return @array;
 354 }
 355
 356 sub _param_scalar {
 357     my ($self,$name,$default) = @_;
 358
 359         my $scalar = $self->param($name);
 360
 361         if ( defined $scalar ) {
 362                 $self->session($name => $scalar);
 363         } else {
 364                 $scalar = $self->session($name);
 365         }
 366
 367         if ( ! defined $scalar ) {
 368                 $scalar = $default;
 369                 die "no default for $name" unless defined $scalar;
 370                 $self->session($name => $scalar);
 371         }
 372
 373         warn "# _param_scalar $name ",dump $scalar;
 374         return $scalar;
 375 }
 376
 377 sub filter {
 378         my $self = shift;
 379
 380         my $name = $self->param('filter_name') || die "name?";
 381         my @vals = $self->param('filter_vals');
 382
 383         $self->_remove_filter( $name );
 384         if ( @vals ) {
 385                 $self->_filter_on_data( $name, @vals );
 386                 if ( my $permanent = $self->param('_permanent') ) {
 387                         my $permanent_path = $self->_export_path( 'filter', $name, $permanent );
 388                         write_file $permanent_path, map { "$_\n" } @vals;
 389                         warn "permanent filter $permanent_path ", -s $permanent_path;
 390                 }
 391         }
 392
 393         $self->session( 'offset' => 0 );
 394
 395         $self->redirect_to('/data/items');
 396 }
 397
 398 sub _filter_on_data {
 399         my ( $self, $name, @vals ) = @_;
 400
 401         my $path = $self->session('path');
 402
 403         if ( ! defined $loaded->{$path}->{stats}->{ $name } ) {
 404                 warn "filter $name not found in data set";
 405                 return;
 406         }
 407
 408         $filters->{$name} = [ @vals ];
 409         warn "_filter_on_data $name ", $#vals + 1, " values on $path\n";
 410
 411         my $filter_hash;
 412         $filter_hash->{$_}++ foreach @vals;
 413
 414         #warn "# filter_hash ",dump( $filter_hash );
 415
 416         my $items = $self->_loaded('data')->{items};
 417
 418         my $include_missing = defined $filter_hash->{_missing};
 419         my $filtered_items;
 420
 421         foreach my $i ( 0 .. $#$items ) {
 422
 423                 if ( defined $items->[$i]->{$name} ) {
 424                         foreach my $v ( @{ $items->[$i]->{$name} } ) {
 425                                 if ( defined $filter_hash->{ $v } ) {
 426                                         $filtered_items->{$i}++;
 427                                 }
 428                         }
 429                 } elsif ( $include_missing ) {
 430                         $filtered_items->{$i}++;
 431                 }
 432         }
 433
 434         #warn "# filter $name ",dump($filtered_items);
 435
 436         $loaded->{$path}->{filters}->{$name} = $filtered_items;
 437         warn "filter $name with ", scalar keys %$filtered_items, " items created\n";
 438 }
 439
 440 sub _data_items {
 441         my ( $self, $all ) = @_;
 442         my $data = $self->_loaded( 'data' );
 443
 444         return @{ $data->{items} } if $all == 1;
 445
 446         my $filters = $self->_current_filters;
 447         my $filter_value;
 448         foreach my $f ( keys %$filters ) {
 449                 foreach my $n ( @{ $filters->{$f} } ) {
 450                         $filter_value->{$f}->{$n} = 1;
 451                 }
 452         }
 453         my @items = @{ $data->{items} };
 454         @items = grep {
 455                 my $i = $_;
 456                 my $pass = 1;
 457                 foreach my $n ( keys %$filter_value ) {
 458                         if ( ! exists $i->{$n} ) {
 459                                 if ( defined $filter_value->{$n}->{_missing} ) {
 460                                         $pass = 1;
 461                                         next;
 462                                 } else {
 463                                         $pass = 0;
 464                                         last;
 465                                 }
 466                         }
 467                         # and match any of values in element
 468                         my $have_values = 0;
 469                         foreach my $v ( @{ $i->{$n} } ) { # FIXME not array?
 470                                 $have_values ||= 1 if defined $filter_value->{$n}->{$v};
 471                         }
 472                         if ( ! $have_values ) {
 473                                 $pass = 0;
 474                                 last;
 475                         }
 476                 }
 477                 $pass;
 478         } @items if $filter_value;
 479         return @items;
 480 }
 481
 482
 483 sub _current_filters {
 484         my $self = shift;
 485         my $current_filters;
 486         $current_filters->{ $_ } = $filters->{ $_ }
 487                 foreach (
 488                         grep { defined $filters->{ $_ } }
 489                         @{ $self->_loaded('header') }
 490                 );
 491         #warn "# current_filters ",dump($current_filters);
 492         return $current_filters;
 493 }
 494
 495 sub _data_sorted_by {
 496         my ( $self, $order ) = @_;
 497
 498         my $path = $self->session('path');
 499
 500         warn "_data_sorted_by $order from $path";
 501
 502         if ( defined $loaded->{$path}->{sorted}->{$order} ) {
 503                 return $loaded->{$path}->{sorted}->{$order};
 504         }
 505
 506         my $data = $self->_loaded( 'data' );
 507         my $numeric = $self->_is_numeric($order);
 508         my $missing = $numeric ? 0 : '';
 509         no warnings qw(numeric);
 510         my $nr = 0;
 511         my @sorted = map {
 512                 $_->[0]
 513         } sort {
 514                 if ( $numeric ) {
 515                         $a->[1] <=> $b->[1]
 516                 } else {
 517                         $a->[1] cmp $b->[1]
 518                 }
 519         } map {
 520                 [ $nr++, exists $_->{$order} ? join('', @{$_->{$order}}) : $missing ]
 521         } grep { ref $_->{$order} eq 'ARRAY' } @{ $data->{items} }
 522         ;
 523
 524         warn "sorted: $order numeric: $numeric items: ", $#sorted + 1, "\n";
 525         #warn "# sorted ",dump( @sorted );
 526
 527         $loaded->{$path}->{sorted}->{$order} = [ @sorted ];
 528 }
 529
 530
 531 sub items {
 532         my $self = shift;
 533
 534         my $path = $self->session('path');
 535         $self->redirect_to('/data/index') unless defined $loaded->{ $path };
 536
 537         my @columns = $self->_param_array('columns');
 538         $self->redirect_to('/data/columns') unless @columns;
 539         my $order   = $self->_param_scalar('order', $columns[0]);
 540         my $sort    = $self->_param_scalar('sort', 'a');
 541         my $offset  = $self->_param_scalar('offset', 0);
 542         my $limit   = $self->_param_scalar('limit', 20);
 543         $self->_param_scalar('show', 'table');
 544
 545         # fix offset when changing limit
 546         $offset = int( $offset / $limit ) * $limit;
 547
 548         my $sorted = $self->_data_sorted_by( $order );
 549
 550         my @filter_names;
 551         if ( $filters ) {
 552                 foreach my $name ( keys %$filters ) {
 553                         if ( ! defined $loaded->{$path}->{stats}->{ $name } ) {
 554                                 warn "skip filter $name not found in $path\n";
 555                                 next;
 556                         }
 557                         push @filter_names, $name;
 558                 }
 559                 warn "filter_names ",dump( @filter_names );
 560                 foreach my $name ( @filter_names ) {
 561                         next if ref $loaded->{$path}->{filters}->{$name} eq 'ARRAY';
 562                         $self->_filter_on_data( $name, @{ $filters->{$name} } );
 563                 }
 564         }
 565
 566         my $all_filters = join(' ',sort @filter_names,'order:',$order);
 567
 568 #       warn "# all_filters $all_filters ", dump( $loaded->{$path}->{filtered}->{$all_filters} );
 569
 570         if ( ! defined $loaded->{$path}->{filtered}->{$all_filters} ) {
 571
 572                 my $path_filters = $loaded->{$path}->{filters};
 573
 574                 warn "create combined filter for $all_filters\n";
 575
 576                 my @filtered;
 577                 foreach my $i ( 0 .. $#$sorted ) {
 578                         my $pos = $sorted->[$i];
 579
 580                         if ( $#filter_names == -1 ) {
 581                                 push @filtered, $pos;
 582                                 next;
 583                         }
 584
 585                         my $skip = 0;
 586                         foreach ( @filter_names ) {
 587                                 $skip ||= 1 if ! defined $path_filters->{$_}->{$pos};
 588                         }
 589                         next if $skip;
 590
 591                         push @filtered, $pos;
 592                 }
 593
 594                 $loaded->{$path}->{filtered}->{$all_filters} = [ @filtered ];
 595         }
 596
 597         my $filtered = $loaded->{$path}->{filtered}->{$all_filters}
 598                 if defined $loaded->{$path}->{filtered}->{$all_filters};
 599
 600         warn "all_filters $all_filters produced ", $#$filtered + 1, " items\n" if $filtered;
 601
 602         my $data = $self->_loaded('data');
 603
 604         my $code = $self->_param_scalar('code');
 605         if ( $self->param('commit') ) {
 606                 warn "# commit $code";
 607                 foreach ( 0 .. $#{ $data->{items} } ) {
 608                         my $rec = $data->{items}->[ $_ ];
 609                         eval $code;
 610                 }
 611                 undef $code;
 612         }
 613
 614         my $sorted_items;
 615         my $from_end = $sort eq 'd' ? $#$filtered : 0;
 616         foreach ( 0 .. $limit ) {
 617                 my $i = $_ + $offset;
 618                 last unless defined $filtered->[$i];
 619                 $i = $from_end - $i if $from_end;
 620                 my $id = $filtered->[$i];
 621                 my $rec = $data->{items}->[ $id ];
 622                 $rec->{_row_id} ||= $id;
 623                 if ( $code ) {
 624                         $rec = Storable::dclone $rec;
 625                         eval $code;
 626                         if ( $@ ) {
 627                                 warn "ERROR evaling\n$code\n$@";
 628                                 undef $code;
 629                                 $self->stash('eval_error', $@) if $@;
 630                         } else {
 631                                 warn "EVAL $code ",dump($rec);
 632                         }
 633                 }
 634                 push @$sorted_items, $rec;
 635         }
 636
 637         warn "# sorted_items ", $#$sorted_items + 1, " offset $offset limit $limit order $sort";
 638
 639         $self->render(
 640                 order => $order,
 641                 offset => $offset,
 642                 limit => $limit,
 643                 sorted => $sorted_items,
 644                 columns => [ @columns ],
 645                 rows => $#$filtered + 1,
 646                 numeric => { map { $_, $self->_is_numeric($_) } @columns },
 647                 filters => $self->_current_filters,
 648                 code => $code,
 649         );
 650
 651 }
 652
 653
 654 sub order {
 655         my $self = shift;
 656         $self->session('order', $self->param('order'));
 657         $self->session('sort', $self->param('sort'));
 658         $self->redirect_to('/data/items');
 659 }
 660
 661 sub _is_numeric {
 662         my ( $self, $name ) = @_;
 663
 664         my $stats = $self->_loaded( 'stats' );
 665
 666         # sort facet numerically if more >50% elements are numeric
 667         my $count = $stats->{$name}->{count};
 668         $count   -= $stats->{$name}->{empty} if defined $stats->{$name}->{empty};
 669         defined $stats->{$name}->{numeric} &&
 670                 $stats->{$name}->{numeric} > $count / 2;
 671 }
 672
 673 sub _remove_filter {
 674         my ($self,$name) = @_;
 675         warn "_remove_filter $name\n";
 676
 677         my $path = $self->session('path');
 678
 679         delete $filters->{$name};
 680         delete $loaded->{$path}->{filters}->{$name};
 681         warn "filters left: ", keys %{ $loaded->{$path}->{filters} };
 682
 683         foreach (
 684                         grep { /\b$name\b/ }
 685                         keys %{ $loaded->{$path}->{filtered} }
 686         ) {
 687                 delete $loaded->{$path}->{filtered}->{$_};
 688                 warn "remove filtered cache $_";
 689         }
 690 }
 691
 692 sub facet {
 693         my $self = shift;
 694
 695         my $path = $self->session('path') || $self->redirect_to( '/data/index' );
 696
 697         if ( my $name = $self->param('remove') ) {
 698                 $self->_remove_filter( $name );
 699                 $self->redirect_to( '/data/items' );
 700         }
 701
 702         my $facet;
 703         my $name = $self->param('name') || die "no name";
 704
 705         my $all = $self->_param_scalar('all', 1);
 706         my $data = $self->_loaded('data');
 707
 708         my $filters = $self->_current_filters;
 709         my $all_filters = join(' ',sort keys %$filters,'order:',$self->session('order'));
 710         my $filtered = $loaded->{$path}->{filtered}->{$all_filters}
 711                 if defined $loaded->{$path}->{filtered}->{$all_filters};
 712
 713         if ( ! $filtered || $all ) {
 714                 $filtered = [ 0 .. $#{ $data->{items} } ];
 715                 warn "filter all values\n";
 716         } else {
 717                 warn "filter using $all_filters\n";
 718         }
 719
 720         foreach my $i ( @$filtered ) {
 721                 my $item = $data->{items}->[$i];
 722                 if ( ! exists $item->{$name} ) {
 723                         $facet->{ _missing }++;
 724                 } elsif ( ref $item->{$name} eq 'ARRAY' ) {
 725                         $facet->{$_}++ foreach @{ $item->{$name} };
 726                 } else {
 727                         $facet->{ $item->{$name} }++;
 728                 }
 729         }
 730
 731 #       warn "# facet $name ",dump $facet;
 732
 733         my $checked;
 734         my @facet_names =
 735                   $all                      ? keys %$facet
 736                 : defined $filters->{$name} ? @{ $filters->{$name} }
 737                 : keys %$facet;
 738
 739         $checked = $self->_checked( @{ $filters->{$name} } ) if defined $filters->{$name};
 740
 741         my $numeric = $self->_is_numeric($name);
 742
 743         my $sort = $self->param('sort');
 744         # sort numeric facets with more than 5 values ascending
 745         $sort ||= $numeric && $#facet_names > 4 ? 'a' : 'c';
 746
 747         @facet_names = sort {
 748                 my $result;
 749                 if ( $sort eq 'a' ) {
 750                         $result = $numeric ? $a <=> $b : lc $a cmp lc $b;
 751                 } elsif ( $sort eq 'd' ) {
 752                         $result = $numeric ? $b <=> $a : lc $b cmp lc $a;
 753                 } elsif ( $sort eq 'c' ) {
 754                         $result = ( $facet->{$b} || -1 ) <=> ( $facet->{$a} || -1 )
 755                 } else {
 756                         warn "unknown sort: $sort";
 757                         $result = $a cmp $b;
 758                 }
 759                 $result = $a cmp $b unless defined $result; # FIXME cludge for numeric facets with invalid data
 760                 $result;
 761         } @facet_names;
 762
 763         $self->render( name => $name, facet => $facet, checked => $checked,
 764                 facet_names => \@facet_names, sort => $sort, numeric => $numeric,
 765         );
 766 }
 767
 768
 769 sub __invalidate_path_column {
 770         my ( $path, $name ) = @_;
 771
 772         if ( defined $loaded->{$path}->{sorted}->{$name} ) {
 773                 delete $loaded->{$path}->{sorted}->{$name};
 774                 warn "# invalidate $path sorted $name\n";
 775         }
 776
 777         foreach ( grep { m/$name/ } keys %{ $loaded->{$path}->{filtered} } ) {
 778                 delete $loaded->{$path}->{filtered}->{$_};
 779                 warn "# invalidate $path filtered $_\n";
 780         }
 781 }
 782
 783 sub __path_modified {
 784         my ( $path, $value ) = @_;
 785         $value = 1 unless defined $value;
 786
 787         $loaded->{$path}->{modified}  = $value;
 788
 789         warn "# __path_modified $path $value\n";
 790 }
 791
 792 sub edit {
 793         my $self = shift;
 794         my $new_content = $self->param('new_content');
 795         $new_content  ||= $self->param('content'); # backward compatibility with old actions
 796
 797         my $i = $self->param('_row_id');
 798         die "invalid _row_id ",dump($i) unless $i =~ m/^\d+$/;
 799         my $path = $self->param('path') || die "no path";
 800         my $name = $self->param('name') || die "no name";
 801         my $status = 200; # 200 = OK, 201 = Created
 802
 803         my $data = $self->_loaded('data');
 804
 805         if ( defined $loaded->{$path}->{data}->{items}->[$i] ) {
 806                 $new_content =~ s/^\s+//s;
 807                 $new_content =~ s/\s+$//s;
 808                 my $v;
 809                 if ( $new_content =~ /\xB6/ ) { # para
 810                         $v = [ split(/\s*\xB6\s*/, $new_content) ];
 811                 } else {
 812                         $v = [ $new_content ];
 813                 }
 814
 815                 my $old = dump $loaded->{$path}->{data}->{items}->[$i]->{$name};
 816                 my $new = dump $v;
 817                 if ( $old ne $new
 818                         && ! ( $old eq 'undef' && length($new_content) == 0 ) # new value empty, previous undef
 819                 ) {
 820                         my $change = {
 821                                 path => $path,
 822                                 column => $name,
 823                                 pos => $i,
 824                                 old => $loaded->{$path}->{data}->{items}->[$i]->{$name},
 825                                 new => $v,
 826                                 time => $self->param('time') || time(),
 827                                 user => $self->param('user') || $ENV{'LOGNAME'},
 828                                 unique => {
 829                                         map { $_ => $loaded->{$path}->{data}->{items}->[$i]->{$_}->[0] }
 830                                         grep { defined $loaded->{$path}->{stats}->{$_}->{unique} }
 831                                         keys %{ $loaded->{$path}->{stats} }
 832                                 },
 833                         };
 834                         my $change_path = $self->_permanent_path( 'changes' );
 835                         mkdir $change_path unless -d $change_path;
 836                         $change_path .= '/' . $change->{time};
 837                         store $change, $change_path;
 838                         utime $change->{time}, $change->{time}, $change_path;
 839                         warn "# $change_path ", dump($change);
 840
 841                         warn "# change $path $i $old -> $new\n";
 842                         $loaded->{$path}->{data}->{items}->[$i]->{$name} = $v;
 843
 844                         __invalidate_path_column( $path, $name );
 845
 846                         $status = 201; # created
 847                         # modified = 2 -- force rebuild of stats
 848                         __path_modified( $path, 2 );
 849
 850                         $new_content = join("\xB6",@$v);
 851
 852                 } else {
 853                         warn "# unchanged $path $i $old\n";
 854                         $status = 304;
 855                 }
 856         } else {
 857                 $new_content = "$path $i $name doesn't exist\n";
 858                 $status = 404;
 859         }
 860
 861         warn "# edit $status ", dump $new_content;
 862
 863         $self->render(
 864                 status => $status,
 865                 new_content => scalar $new_content,
 866         );
 867 }
 868
 869
 870 sub save {
 871         my $self = shift;
 872         my $path = $self->_param_or_session('path');
 873         my $dump_path = $self->_save( $path );
 874         __path_modified( $path, 0 );
 875
 876         $self->redirect_to( '/data/items' );
 877 }
 878
 879 sub export {
 880         my $self = shift;
 881
 882         if ( my $import = $self->param('import') ) {
 883
 884                 if ( $import =~ m{/filter\.(.+?)\..+} ) {
 885                         my $name = $1;
 886                         my @vals = map { chomp; $_ }
 887                                 read_file $self->app->home->rel_dir('public') . "/export/$import";
 888                         $self->_remove_filter( $name );
 889                         $self->_filter_on_data( $name, @vals );
 890                         $self->session( 'offset' => 0 );
 891                         $self->redirect_to('/data/items');
 892                 } else {
 893                         warn "UNKNOWN IMPORT $import";
 894                 }
 895         }
 896
 897         $self->render( export => [
 898                 glob( $self->_export_path . '*' )
 899         ] );
 900 }
 901
 902 sub __loaded_paths {
 903         return
 904                 grep { defined $loaded->{$_}->{data} }
 905                 keys %$loaded;
 906 }
 907
 908 1;