| 1 | # Copyright 2001-2006 Six Apart. This code cannot be redistributed without |
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| 2 | # permission from www.sixapart.com. For more information, consult your |
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| 3 | # Movable Type license. |
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| 4 | # |
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| 5 | # $Id$ |
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| 6 | |
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| 7 | package MT::BackupRestore; |
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| 8 | use strict; |
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| 9 | |
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| 10 | use Symbol; |
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| 11 | use MT::ErrorHandler; |
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| 12 | @MT::BackupRestore::ISA = qw( MT::ErrorHandler ); |
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| 13 | |
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| 14 | use constant NS_MOVABLETYPE => 'http://www.sixapart.com/ns/movabletype'; |
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| 15 | |
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| 16 | use File::Spec; |
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| 17 | use File::Copy; |
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| 18 | |
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| 19 | sub backup { |
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| 20 | my $class = shift; |
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| 21 | my ($blog_ids, $printer, $splitter, $finisher, $size, $enc) = @_; |
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| 22 | my $obj_to_backup = []; |
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| 23 | |
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| 24 | if (defined($blog_ids) && scalar(@$blog_ids)) { |
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| 25 | push @$obj_to_backup, {'MT::Tag' => { |
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| 26 | term => undef, |
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| 27 | args => { 'join' => |
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| 28 | [ 'MT::ObjectTag', 'tag_id', { blog_id => $blog_ids }, undef ] |
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| 29 | }}}; |
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| 30 | push @$obj_to_backup, {'MT::Author' => { |
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| 31 | term => undef, |
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| 32 | args => { 'join' => |
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| 33 | [ 'MT::Association', 'author_id', { blog_id => $blog_ids }, undef ] |
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| 34 | }}}; |
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| 35 | ## Author has two different ways to associate to a weblog... |
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| 36 | push @$obj_to_backup, {'MT::Author' => { |
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| 37 | term => undef, |
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| 38 | args => { 'join' => |
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| 39 | [ 'MT::Permission', 'author_id', { blog_id => $blog_ids }, undef ] |
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| 40 | }}}; |
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| 41 | push @$obj_to_backup, {'MT::Blog' => { |
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| 42 | term => { 'id' => $blog_ids }, |
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| 43 | args => undef |
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| 44 | }}; |
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| 45 | push @$obj_to_backup, {'MT::Notification' => { |
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| 46 | term => { 'blog_id' => $blog_ids }, |
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| 47 | args => undef |
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| 48 | }}; |
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| 49 | push @$obj_to_backup, {'MT::Template' => { |
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| 50 | term => { 'blog_id' => $blog_ids }, |
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| 51 | args => undef |
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| 52 | }}; |
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| 53 | push @$obj_to_backup, {'MT::TemplateMap' => { |
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| 54 | term => { 'blog_id' => $blog_ids }, |
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| 55 | args => undef |
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| 56 | }}; |
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| 57 | push @$obj_to_backup, {'MT::Role' => { |
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| 58 | term => undef, |
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| 59 | args => { 'join' => |
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| 60 | [ 'MT::Association', 'role_id', { blog_id => $blog_ids }, undef ] |
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| 61 | }}}; |
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| 62 | push @$obj_to_backup, {'MT::Association' => { |
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| 63 | term => { 'blog_id' => $blog_ids }, |
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| 64 | args => undef |
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| 65 | }}; |
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| 66 | push @$obj_to_backup, {'MT::Permission' => { |
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| 67 | term => { 'blog_id' => $blog_ids }, |
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| 68 | args => undef |
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| 69 | }}; |
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| 70 | push @$obj_to_backup, {'MT::Category' => { |
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| 71 | term => { 'blog_id' => $blog_ids }, |
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| 72 | args => undef |
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| 73 | }}; |
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| 74 | push @$obj_to_backup, {'MT::Asset' => { |
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| 75 | term => { 'blog_id' => $blog_ids }, |
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| 76 | args => undef |
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| 77 | }}; |
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| 78 | push @$obj_to_backup, {'MT::Entry' => { |
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| 79 | term => { 'blog_id' => $blog_ids }, |
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| 80 | args => undef |
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| 81 | }}; |
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| 82 | push @$obj_to_backup, {'MT::FileInfo' => { |
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| 83 | term => { 'blog_id' => $blog_ids }, |
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| 84 | args => undef |
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| 85 | }}; |
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| 86 | push @$obj_to_backup, {'MT::ObjectTag' => { |
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| 87 | term => { 'blog_id' => $blog_ids }, |
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| 88 | args => undef |
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| 89 | }}; |
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| 90 | push @$obj_to_backup, {'MT::Placement' => { |
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| 91 | term => { 'blog_id' => $blog_ids }, |
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| 92 | args => undef |
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| 93 | }}; |
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| 94 | push @$obj_to_backup, {'MT::Trackback' => { |
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| 95 | term => { 'blog_id' => $blog_ids }, |
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| 96 | args => undef |
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| 97 | }}; |
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| 98 | push @$obj_to_backup, {'MT::TBPing' => { |
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| 99 | term => { 'blog_id' => $blog_ids }, |
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| 100 | args => undef |
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| 101 | }}; |
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| 102 | push @$obj_to_backup, {'MT::Comment' => { |
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| 103 | term => { 'blog_id' => $blog_ids }, |
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| 104 | args => undef |
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| 105 | }}; |
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| 106 | push @$obj_to_backup, {'MT::PluginData' => { term => undef, args => undef }}; |
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| 107 | } else { |
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| 108 | push @$obj_to_backup, {'MT::Tag' => { term => undef, args => undef }}; |
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| 109 | push @$obj_to_backup, {'MT::Author' => { term => undef, args => undef }}; |
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| 110 | push @$obj_to_backup, {'MT::Blog' => { term => undef, args => undef }}; |
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| 111 | push @$obj_to_backup, {'MT::Notification' => { term => undef, args => undef }}; |
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| 112 | push @$obj_to_backup, {'MT::Template' => { term => undef, args => undef }}; |
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| 113 | push @$obj_to_backup, {'MT::TemplateMap' => { term => undef, args => undef }}; |
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| 114 | push @$obj_to_backup, {'MT::Role' => { term => undef, args => undef }}; |
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| 115 | push @$obj_to_backup, {'MT::Association' => { term => undef, args => undef }}; |
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| 116 | push @$obj_to_backup, {'MT::Permission' => { term => undef, args => undef }}; |
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| 117 | push @$obj_to_backup, {'MT::Category' => { term => undef, args => undef }}; |
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| 118 | push @$obj_to_backup, {'MT::Asset' => { term => undef, args => undef }}; |
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| 119 | push @$obj_to_backup, {'MT::Entry' => { term => undef, args => undef }}; |
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| 120 | push @$obj_to_backup, {'MT::FileInfo' => { term => undef, args => undef }}; |
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| 121 | push @$obj_to_backup, {'MT::ObjectTag' => { term => undef, args => undef }}; |
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| 122 | push @$obj_to_backup, {'MT::Placement' => { term => undef, args => undef }}; |
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| 123 | push @$obj_to_backup, {'MT::Trackback' => { term => undef, args => undef }}; |
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| 124 | push @$obj_to_backup, {'MT::TBPing' => { term => undef, args => undef }}; |
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| 125 | push @$obj_to_backup, {'MT::Comment' => { term => undef, args => undef }}; |
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| 126 | push @$obj_to_backup, {'MT::PluginData' => { term => undef, args => undef }}; |
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| 127 | $blog_ids = []; |
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| 128 | } |
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| 129 | |
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| 130 | my $header .= "<movabletype xmlns='" . NS_MOVABLETYPE . "'>\n"; |
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| 131 | $header = "<?xml version='1.0' encoding='$enc'?>\n$header" if $enc !~ m/utf-?8/i; |
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| 132 | $printer->($header, q()); |
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| 133 | |
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| 134 | my $files = {}; |
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| 135 | _loop_through_objects( |
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| 136 | $printer, $splitter, $finisher, $size, $obj_to_backup, $files); |
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| 137 | |
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| 138 | my $else_xml = MT->run_callbacks('Backup', $blog_ids); |
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| 139 | $printer->($else_xml, q()) if $else_xml ne '1'; |
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| 140 | |
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| 141 | $printer->('</movabletype>', q()); |
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| 142 | $finisher->($files); |
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| 143 | } |
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| 144 | |
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| 145 | sub _loop_through_objects { |
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| 146 | my ($printer, $splitter, $finisher, $size, $obj_to_backup, $files) = @_; |
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| 147 | |
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| 148 | my $counter = 1; |
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| 149 | my $bytes = 0; |
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| 150 | my %author_ids_seen; |
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| 151 | for my $class_hash (@$obj_to_backup) { |
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| 152 | my ($class, $term_arg) = each(%$class_hash); |
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| 153 | eval "require $class;"; |
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| 154 | my $children = $class->children_names || {}; |
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| 155 | for my $child_class (values %$children) { |
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| 156 | eval "require $child_class;"; |
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| 157 | } |
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| 158 | my $err = $@; |
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| 159 | if ($err) { |
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| 160 | $printer->("$err\n", "$err\n"); |
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| 161 | next; |
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| 162 | } |
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| 163 | my $offset = 0; |
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| 164 | my $term = $term_arg->{term} || {}; |
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| 165 | my $args = $term_arg->{args}; |
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| 166 | while (1) { |
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| 167 | $args->{offset} = $offset; |
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| 168 | $args->{limit} = 50; |
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| 169 | my @objects = $class->load($term, $args); |
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| 170 | last unless @objects; |
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| 171 | $offset += scalar @objects; |
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| 172 | for my $object (@objects) { |
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| 173 | next if ($class eq 'MT::Author') && exists($author_ids_seen{$object->id}); |
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| 174 | $bytes += $printer->($object->to_xml(undef, $args) . "\n", |
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| 175 | MT->translate('[_1]#[_2] has been backed up.', $class, $object->id) . "\n") |
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| 176 | if $object->to_backup; |
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| 177 | if ($size && ($bytes >= $size)) { |
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| 178 | $splitter->(++$counter); |
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| 179 | $bytes = 0; |
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| 180 | } |
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| 181 | if ($class eq 'MT::Author') { |
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| 182 | # MT::Author may be duplicated because of how terms and args are created. |
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| 183 | $author_ids_seen{$object->id} = 1; |
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| 184 | } elsif ($class eq 'MT::Asset') { |
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| 185 | $files->{$object->id} = [$object->url, $object->file_path, $object->file_name]; |
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| 186 | } |
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| 187 | } |
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| 188 | } |
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| 189 | } |
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| 190 | } |
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| 191 | |
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| 192 | sub restore_file { |
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| 193 | my $class = shift; |
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| 194 | my ($fh, $errormsg, $callback) = @_; |
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| 195 | |
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| 196 | my $objects = {}; |
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| 197 | my $deferred = {}; |
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| 198 | my $errors = []; |
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| 199 | |
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| 200 | $class->restore_process_single_file( |
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| 201 | $fh, $objects, $deferred, $errors, $callback |
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| 202 | ); |
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| 203 | $$errormsg = join('; ', @$errors); |
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| 204 | $deferred; |
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| 205 | } |
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| 206 | |
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| 207 | sub restore_process_single_file { |
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| 208 | my $class = shift; |
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| 209 | my ($fh, $objects, $deferred, $errors, $callback) = @_; |
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| 210 | |
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| 211 | require XML::SAX; |
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| 212 | require MT::BackupRestore::BackupFileHandler; |
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| 213 | my $handler = MT::BackupRestore::BackupFileHandler->new( |
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| 214 | callback => $callback, |
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| 215 | objects => $objects, |
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| 216 | deferred => $deferred, |
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| 217 | errors => $errors, |
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| 218 | ); |
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| 219 | |
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| 220 | my $parser = XML::SAX::ParserFactory->parser( |
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| 221 | Handler => $handler, |
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| 222 | ); |
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| 223 | my $e; |
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| 224 | eval { $parser->parse_file($fh); }; |
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| 225 | $e = $@ if $@; |
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| 226 | if ($e) { |
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| 227 | push @$errors, $e; |
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| 228 | $callback->($e); |
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| 229 | } |
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| 230 | 1; |
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| 231 | } |
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| 232 | |
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| 233 | sub restore_directory { |
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| 234 | my $class = shift; |
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| 235 | my ($dir, $errors, $error_assets, $callback) = @_; |
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| 236 | |
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| 237 | my $manifest; |
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| 238 | my @files; |
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| 239 | opendir my $dh, $dir or push(@$errors, MT->translate("Can't open directory '[_1]': [_2]", $dir, "$!")), return undef; |
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| 240 | for my $f (readdir $dh) { |
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| 241 | next if $f !~ /^.+\.manifest$/i; |
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| 242 | $manifest = File::Spec->catfile($dir, $f); |
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| 243 | last; |
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| 244 | } |
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| 245 | closedir $dh; |
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| 246 | unless ($manifest) { |
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| 247 | push @$errors, MT->translate("No manifest file could be found in your import directory [_1].", $dir); |
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| 248 | return undef; |
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| 249 | } |
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| 250 | |
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| 251 | my $fh = gensym; |
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| 252 | open $fh, "<$manifest" or push(@$errors, MT->translate("Can't open [_1].", $manifest)), return 0; |
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| 253 | my $backups = __PACKAGE__->process_manifest($fh); |
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| 254 | close $fh; |
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| 255 | unless($backups) { |
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| 256 | push @$errors, MT->translate("Manifest file [_1] was not a valid Movable Type backup manifest file.", $manifest); |
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| 257 | return undef; |
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| 258 | } |
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| 259 | |
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| 260 | $callback->(MT->translate("Manifest file: [_1]\n", $manifest)); |
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| 261 | |
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| 262 | my %objects; |
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| 263 | my $deferred = {}; |
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| 264 | |
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| 265 | my $files = $backups->{files}; |
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| 266 | for my $file (@$files) { |
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| 267 | my $fh = gensym; |
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| 268 | my $filepath = File::Spec->catfile($dir, $file); |
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| 269 | open $fh, "<$filepath" or push @$errors, MT->translate('[_1] cannot open.'), next; |
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| 270 | |
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| 271 | my $result = __PACKAGE__->restore_process_single_file( |
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| 272 | $fh, \%objects, $deferred, $errors, $callback); |
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| 273 | |
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| 274 | close $fh; |
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| 275 | } |
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| 276 | |
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| 277 | _restore_assets($dir, $backups, \%objects, $error_assets, $callback) if defined($backups->{assets}); |
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| 278 | $deferred; |
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| 279 | } |
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| 280 | |
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| 281 | sub process_manifest { |
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| 282 | my $class = shift; |
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| 283 | my ($stream) = @_; |
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| 284 | |
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| 285 | if ((ref($stream) eq 'Fh') || (ref($stream) eq 'GLOB')){ |
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| 286 | seek($stream, 0, 0) or return undef; |
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| 287 | require XML::SAX; |
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| 288 | require MT::BackupRestore::ManifestFileHandler; |
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| 289 | my $handler = MT::BackupRestore::ManifestFileHandler->new(); |
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| 290 | |
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| 291 | my $parser = XML::SAX::ParserFactory->parser( |
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| 292 | Handler => $handler, |
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| 293 | ); |
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| 294 | eval { $parser->parse_file($stream); }; |
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| 295 | if (my $e = $@) { |
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| 296 | die $e; |
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| 297 | } |
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| 298 | return $handler->{backups}; |
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| 299 | } |
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| 300 | return undef; |
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| 301 | } |
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| 302 | |
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| 303 | sub restore_asset { |
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| 304 | my $class = shift; |
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| 305 | my ($tmp, $asset_element, $objects, $errors, $callback) = @_; |
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| 306 | |
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| 307 | my $id = $asset_element->{asset_id}; |
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| 308 | if (!defined($id)) { |
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| 309 | $callback->(MT->translate('ID for the asset was not set.')); |
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| 310 | return 0; |
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| 311 | } |
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| 312 | my $asset = $objects->{"MT::Asset#$id"}; |
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| 313 | unless (defined($asset)) { |
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| 314 | $callback->(MT->translate('The asset ([_1]) was not restored.', $id)); |
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| 315 | return 0; |
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| 316 | } |
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| 317 | my $path = $asset->file_path; |
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| 318 | unless (defined($path)) { |
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| 319 | $callback->(MT->translate('Path was not found for the asset ([_1]).', $id)); |
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| 320 | return 0; |
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| 321 | } |
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| 322 | my ($vol, $dir, $fn) = File::Spec->splitpath($path); |
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| 323 | if (!-w "$vol$dir") { |
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| 324 | my $voldir = "$vol$dir"; |
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| 325 | # we do need decode_utf8 here |
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| 326 | $errors->{$id} = MT->translate('[_1] is not writable.', MT::I18N::utf8_off($voldir)); |
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| 327 | } else { |
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| 328 | my $filename = "$id-" . $asset_element->{name}; |
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| 329 | $callback->(MT->translate("Copying [_1] to [_2]...", $filename, $path)); |
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| 330 | my $file; |
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| 331 | if (defined($tmp)) { |
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| 332 | $file = File::Spec->catfile($tmp, $filename) if defined($tmp); |
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| 333 | } else { |
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| 334 | $file = $asset_element->{fh}; |
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| 335 | } |
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| 336 | copy($file, $path) |
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| 337 | or $errors->{$id} = $!; |
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| 338 | } |
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| 339 | $callback->(exists($errors->{$id}) ? |
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| 340 | MT->translate('Failed: ') . $errors->{$id} : |
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| 341 | MT->translate("Done.") |
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| 342 | ); |
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| 343 | $callback->("\n"); |
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| 344 | } |
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| 345 | |
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| 346 | sub _restore_assets { |
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| 347 | my ($tmp, $backups, $objects, $errors, $callback) = @_; |
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| 348 | my $assets = $backups->{assets}; |
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| 349 | return 0 if !defined($assets); |
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| 350 | use File::Copy; |
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| 351 | require File::Spec; |
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| 352 | for my $asset_element (@$assets) { |
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| 353 | __PACKAGE__->restore_asset($tmp, $asset_element, $objects, $errors, $callback); |
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| 354 | } |
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| 355 | 1; |
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| 356 | } |
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| 357 | |
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| 358 | package MT::Object; |
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| 359 | |
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| 360 | sub _is_element { |
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| 361 | my $obj = shift; |
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| 362 | my ($def) = @_; |
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| 363 | return (('text' eq $def->{type}) || (('string' eq $def->{type}) && (255 < $def->{size}))) ? 1 : 0; |
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| 364 | } |
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| 365 | |
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| 366 | sub to_backup { 1; } |
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| 367 | |
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| 368 | sub children_to_xml { |
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| 369 | my $obj = shift; |
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| 370 | my ($namespace, $args) = @_; |
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| 371 | |
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| 372 | my $t = {}; |
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| 373 | if (defined($args)) { |
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| 374 | my $j = $args->{'join'}; |
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| 375 | $t = $j->[2] if defined($j); |
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| 376 | } |
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| 377 | |
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| 378 | my $children = $obj->children_names; |
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| 379 | my @children_classes = values %$children; |
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| 380 | my $xml = ''; |
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| 381 | |
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| 382 | for my $child_class (@children_classes) { |
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| 383 | eval "require $child_class"; |
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| 384 | my $err = $@; |
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| 385 | return $err if defined($err) && $err; |
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| 386 | |
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| 387 | my $terms = { |
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| 388 | $obj->datasource . '_id' => $obj->id, |
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| 389 | %$t, |
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| 390 | }; |
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| 391 | |
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| 392 | my $offset = 0; |
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| 393 | while (1) { |
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| 394 | my @objects = $child_class->load( |
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| 395 | $terms, |
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| 396 | { offset => $offset, limit => 50, } |
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| 397 | ); |
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| 398 | last unless @objects; |
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| 399 | $offset += scalar @objects; |
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| 400 | for my $object (@objects) { |
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| 401 | $xml .= $object->to_xml($namespace) . "\n" if $object->to_backup; |
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| 402 | } |
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| 403 | } |
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| 404 | } |
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| 405 | $xml; |
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| 406 | } |
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| 407 | |
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| 408 | sub to_xml { |
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| 409 | my $obj = shift; |
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| 410 | my ($namespace, $args) = @_; |
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| 411 | |
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| 412 | my $coldefs = $obj->column_defs; |
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| 413 | my $colnames = $obj->column_names; |
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| 414 | my $xml; |
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| 415 | |
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| 416 | $xml = '<' . $obj->datasource; |
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| 417 | $xml .= " xmlns='$namespace'" if defined($namespace) && $namespace; |
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| 418 | |
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| 419 | my @elements; |
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| 420 | for my $name (@$colnames) { |
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| 421 | if ($obj->column($name) || (defined($obj->column($name)) && ('0' eq $obj->column($name)))) { |
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| 422 | if ($obj->_is_element($coldefs->{$name})) { |
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| 423 | push @elements, $name; |
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| 424 | next; |
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| 425 | } |
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| 426 | $xml .= " $name='" . MT::Util::encode_xml($obj->column($name), 1) . "'"; |
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| 427 | } |
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| 428 | } |
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| 429 | $xml .= '>'; |
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| 430 | $xml .= "<$_>" . MT::Util::encode_xml($obj->column($_), 1) . "</$_>" foreach @elements; |
|---|
| 431 | $xml .= '</' . $obj->datasource . '>'; |
|---|
| 432 | $xml; |
|---|
| 433 | } |
|---|
| 434 | |
|---|
| 435 | sub children_names { |
|---|
| 436 | my $obj = shift; |
|---|
| 437 | {}; |
|---|
| 438 | } |
|---|
| 439 | |
|---|
| 440 | sub parent_names { |
|---|
| 441 | my $obj = shift; |
|---|
| 442 | {}; |
|---|
| 443 | } |
|---|
| 444 | |
|---|
| 445 | sub restore_parent_ids { |
|---|
| 446 | my $obj = shift; |
|---|
| 447 | my ($data, $objects) = @_; |
|---|
| 448 | |
|---|
| 449 | my $parent_names = $obj->parent_names; |
|---|
| 450 | |
|---|
| 451 | my $done = 0; |
|---|
| 452 | for my $parent_element_name (keys %$parent_names) { |
|---|
| 453 | if (!exists($data->{$parent_element_name . '_id'})) { |
|---|
| 454 | $done++; |
|---|
| 455 | next; |
|---|
| 456 | } |
|---|
| 457 | my $parent_class_name = $parent_names->{$parent_element_name}; |
|---|
| 458 | my $old_id = $data->{$parent_element_name . '_id'}; |
|---|
| 459 | my $new_obj = $objects->{"$parent_class_name#$old_id"}; |
|---|
| 460 | next if !(defined($new_obj) && $new_obj); |
|---|
| 461 | $data->{$parent_element_name . '_id'} = $new_obj->id; |
|---|
| 462 | $done++; |
|---|
| 463 | } |
|---|
| 464 | (scalar(keys(%$parent_names)) == $done) ? 1 : 0; |
|---|
| 465 | } |
|---|
| 466 | |
|---|
| 467 | package MT::Asset; |
|---|
| 468 | |
|---|
| 469 | sub children_to_xml { |
|---|
| 470 | my $obj = shift; |
|---|
| 471 | my ($namespace, $args) = @_; |
|---|
| 472 | my $xml = ''; |
|---|
| 473 | |
|---|
| 474 | require MT::ObjectTag; |
|---|
| 475 | my $offset = 0; |
|---|
| 476 | while (1) { |
|---|
| 477 | my @objecttags = MT::ObjectTag->load( |
|---|
| 478 | { object_id => $obj->id, object_datasource => $obj->datasource }, |
|---|
| 479 | { offset => $offset, limit => 50, } |
|---|
| 480 | ); |
|---|
| 481 | last unless @objecttags; |
|---|
| 482 | $offset += scalar @objecttags; |
|---|
| 483 | for my $objecttag (@objecttags) { |
|---|
| 484 | $xml .= $objecttag->to_xml($namespace, $args) . "\n" if $objecttag->to_backup; |
|---|
| 485 | } |
|---|
| 486 | } |
|---|
| 487 | |
|---|
| 488 | $xml; |
|---|
| 489 | } |
|---|
| 490 | |
|---|
| 491 | sub children_names { |
|---|
| 492 | my $obj = shift; |
|---|
| 493 | my $children = { |
|---|
| 494 | objecttag => 'MT::ObjectTag', |
|---|
| 495 | }; |
|---|
| 496 | $children; |
|---|
| 497 | } |
|---|
| 498 | |
|---|
| 499 | sub parent_names { |
|---|
| 500 | my $obj = shift; |
|---|
| 501 | my $parents = { |
|---|
| 502 | blog => 'MT::Blog', |
|---|
| 503 | }; |
|---|
| 504 | $parents; |
|---|
| 505 | } |
|---|
| 506 | |
|---|
| 507 | package MT::Association; |
|---|
| 508 | |
|---|
| 509 | sub parent_names { |
|---|
| 510 | my $obj = shift; |
|---|
| 511 | my $parents = { |
|---|
| 512 | blog => 'MT::Blog', |
|---|
| 513 | author => 'MT::Author', |
|---|
| 514 | role => 'MT::Role', |
|---|
| 515 | }; |
|---|
| 516 | $parents; |
|---|
| 517 | } |
|---|
| 518 | |
|---|
| 519 | package MT::Author; |
|---|
| 520 | |
|---|
| 521 | sub children_names { |
|---|
| 522 | my $obj = shift; |
|---|
| 523 | my $children = { |
|---|
| 524 | permission => 'MT::Permission', |
|---|
| 525 | association => 'MT::Association', |
|---|
| 526 | #entry => 'MT::Entry', ## An author is a parent of a category/entry |
|---|
| 527 | #category => 'MT::Category', ## but a category/entry is not a child of an author |
|---|
| 528 | ## otherwise they duplicate in restore operation. |
|---|
| 529 | ## Also, <author> must come before <category> and |
|---|
| 530 | ## <entry> in the backup file. |
|---|
| 531 | }; |
|---|
| 532 | $children; |
|---|
| 533 | } |
|---|
| 534 | |
|---|
| 535 | package MT::Blog; |
|---|
| 536 | |
|---|
| 537 | sub children_names { |
|---|
| 538 | my $obj = shift; |
|---|
| 539 | my $children = { |
|---|
| 540 | placement => 'MT::Placement', |
|---|
| 541 | permission => 'MT::Permission', |
|---|
| 542 | notification => 'MT::Notification', |
|---|
| 543 | association => 'MT::Association', |
|---|
| 544 | fileinfo => 'MT::FileInfo', |
|---|
| 545 | #template => 'MT::Template', |
|---|
| 546 | #entry => 'MT::Entry', ## A blog is a parent of an entry/a template but |
|---|
| 547 | ## they are not a child of a blog |
|---|
| 548 | ## otherwise they duplicate in restore operation. |
|---|
| 549 | ## Also, <blog> must come before <entry> and <template>. |
|---|
| 550 | }; |
|---|
| 551 | $children; |
|---|
| 552 | } |
|---|
| 553 | |
|---|
| 554 | package MT::Category; |
|---|
| 555 | |
|---|
| 556 | #sub to_backup { |
|---|
| 557 | # $_[0]->parent ? 0 : 1; |
|---|
| 558 | #} |
|---|
| 559 | |
|---|
| 560 | sub children_to_xml { |
|---|
| 561 | my $obj = shift; |
|---|
| 562 | my ($namespace, $args) = @_; |
|---|
| 563 | my $xml = ''; |
|---|
| 564 | |
|---|
| 565 | #require MT::Trackback; |
|---|
| 566 | #my $tb = MT::Trackback->load({ category_id => $obj->id }); |
|---|
| 567 | #if ($tb) { |
|---|
| 568 | # require MT::TBPing; |
|---|
| 569 | # my $offset = 0; |
|---|
| 570 | # while (1) { |
|---|
| 571 | # my @pings = MT::TBPing->load( |
|---|
| 572 | # { tb_id => $tb->id, }, |
|---|
| 573 | # { offset => $offset, limit => 50, } |
|---|
| 574 | # ); |
|---|
| 575 | # last unless @pings; |
|---|
| 576 | # $offset += scalar @pings; |
|---|
| 577 | # for my $ping (@pings) { |
|---|
| 578 | # $xml .= $ping->to_xml($namespace, $args) . "\n" if $ping->to_backup; |
|---|
| 579 | # } |
|---|
| 580 | # } |
|---|
| 581 | #} |
|---|
| 582 | |
|---|
| 583 | my $offset = 0; |
|---|
| 584 | while (1) { |
|---|
| 585 | my @placements = MT::Placement->load( |
|---|
| 586 | { 'category_id' => $obj->id, }, |
|---|
| 587 | { offset => $offset, limit => 50, } |
|---|
| 588 | ); |
|---|
| 589 | last unless @placements; |
|---|
| 590 | $offset += scalar @placements; |
|---|
| 591 | for my $placement (@placements) { |
|---|
| 592 | $xml .= $placement->to_xml($namespace, $args) . "\n" if $placement->to_backup; |
|---|
| 593 | } |
|---|
| 594 | } |
|---|
| 595 | |
|---|
| 596 | my @children = $obj->children_categories; |
|---|
| 597 | return $xml unless @children; |
|---|
| 598 | for my $child (@children) { |
|---|
| 599 | $xml .= $child->to_xml($namespace, $args) . "\n"; |
|---|
| 600 | } |
|---|
| 601 | $xml; |
|---|
| 602 | } |
|---|
| 603 | |
|---|
| 604 | sub children_names { |
|---|
| 605 | my $obj = shift; |
|---|
| 606 | my $children = { |
|---|
| 607 | #tbping => 'MT::TBPing', |
|---|
| 608 | category => 'MT::Category', |
|---|
| 609 | placement => 'MT::Placement', |
|---|
| 610 | fileinfo => 'MT::FileInfo', |
|---|
| 611 | }; |
|---|
| 612 | $children; |
|---|
| 613 | } |
|---|
| 614 | |
|---|
| 615 | sub parent_names { |
|---|
| 616 | my $obj = shift; |
|---|
| 617 | my $parents = { |
|---|
| 618 | blog => 'MT::Blog', |
|---|
| 619 | author => 'MT::Author', |
|---|
| 620 | }; |
|---|
| 621 | $parents; |
|---|
| 622 | } |
|---|
| 623 | |
|---|
| 624 | sub restore_parent_ids { |
|---|
| 625 | my $obj = shift; |
|---|
| 626 | my ($data, $objects) = @_; |
|---|
| 627 | |
|---|
| 628 | my $parent_names = $obj->parent_names; |
|---|
| 629 | |
|---|
| 630 | my $done = -1; |
|---|
| 631 | for my $parent_element_name (keys %$parent_names) { |
|---|
| 632 | my $parent_class_name = $parent_names->{$parent_element_name}; |
|---|
| 633 | my $old_id = $data->{$parent_element_name . '_id'}; |
|---|
| 634 | my $new_obj = $objects->{"$parent_class_name#$old_id"}; |
|---|
| 635 | next if !(defined($new_obj) && $new_obj); |
|---|
| 636 | $data->{$parent_element_name . '_id'} = $new_obj->id; |
|---|
| 637 | $done++; |
|---|
| 638 | } |
|---|
| 639 | my $old_id = $data->{'parent'}; |
|---|
| 640 | if (defined($old_id) && ($old_id > 0)) { |
|---|
| 641 | my $new_obj = $objects->{"MT::Category#$old_id"}; |
|---|
| 642 | if (defined($new_obj) && $new_obj) { |
|---|
| 643 | $data->{'parent'} = $new_obj->id; |
|---|
| 644 | $done++; |
|---|
| 645 | } |
|---|
| 646 | } else { |
|---|
| 647 | $done++; |
|---|
| 648 | } |
|---|
| 649 | (scalar(keys(%$parent_names)) == $done) ? 1 : 0; |
|---|
| 650 | } |
|---|
| 651 | |
|---|
| 652 | package MT::Comment; |
|---|
| 653 | |
|---|
| 654 | ## To avoid duplicates... |
|---|
| 655 | #sub children_names { |
|---|
| 656 | # my $obj = shift; |
|---|
| 657 | # my $children = { |
|---|
| 658 | # author -> 'MT::Author', |
|---|
| 659 | # }; |
|---|
| 660 | # $children; |
|---|
| 661 | #} |
|---|
| 662 | |
|---|
| 663 | sub parent_names { |
|---|
| 664 | my $obj = shift; |
|---|
| 665 | my $parents = { |
|---|
| 666 | entry => 'MT::Entry', |
|---|
| 667 | blog => 'MT::Blog', |
|---|
| 668 | }; |
|---|
| 669 | $parents; |
|---|
| 670 | } |
|---|
| 671 | |
|---|
| 672 | sub restore_parent_ids { |
|---|
| 673 | my $obj = shift; |
|---|
| 674 | my ($data, $objects) = @_; |
|---|
| 675 | |
|---|
| 676 | my $parent_names = $obj->parent_names; |
|---|
| 677 | |
|---|
| 678 | my $done = -1; |
|---|
| 679 | for my $parent_element_name (keys %$parent_names) { |
|---|
| 680 | my $parent_class_name = $parent_names->{$parent_element_name}; |
|---|
| 681 | my $old_id = $data->{$parent_element_name . '_id'}; |
|---|
| 682 | my $new_obj = $objects->{"$parent_class_name#$old_id"}; |
|---|
| 683 | next if !(defined($new_obj) && $new_obj); |
|---|
| 684 | $data->{$parent_element_name . '_id'} = $new_obj->id; |
|---|
| 685 | $done++; |
|---|
| 686 | } |
|---|
| 687 | my $old_id = $data->{'commenter_id'}; |
|---|
| 688 | if (defined($old_id) && ($old_id > 0)) { |
|---|
| 689 | my $new_obj = $objects->{"MT::Author#$old_id"}; |
|---|
| 690 | if (defined($new_obj) && $new_obj) { |
|---|
| 691 | $data->{'commenter_id'} = $new_obj->id; |
|---|
| 692 | $done++; |
|---|
| 693 | } |
|---|
| 694 | } else { |
|---|
| 695 | $done++; |
|---|
| 696 | } |
|---|
| 697 | (scalar(keys(%$parent_names)) == $done) ? 1 : 0; |
|---|
| 698 | } |
|---|
| 699 | |
|---|
| 700 | package MT::Entry; |
|---|
| 701 | |
|---|
| 702 | sub children_to_xml { |
|---|
| 703 | my $obj = shift; |
|---|
| 704 | my ($namespace, $args) = @_; |
|---|
| 705 | |
|---|
| 706 | my $xml = ''; |
|---|
| 707 | |
|---|
| 708 | $xml .= $obj->_entry_child_to_xml('MT::Placement'); |
|---|
| 709 | |
|---|
| 710 | require MT::ObjectTag; |
|---|
| 711 | my $offset = 0; |
|---|
| 712 | while (1) { |
|---|
| 713 | my @objecttags = MT::ObjectTag->load( |
|---|
| 714 | { object_id => $obj->id, object_datasource => $obj->datasource }, |
|---|
| 715 | { offset => $offset, limit => 50, } |
|---|
| 716 | ); |
|---|
| 717 | last unless @objecttags; |
|---|
| 718 | $offset += scalar @objecttags; |
|---|
| 719 | for my $objecttag (@objecttags) { |
|---|
| 720 | $xml .= $objecttag->to_xml($namespace, $args) . "\n" if $objecttag->to_backup; |
|---|
| 721 | } |
|---|
| 722 | } |
|---|
| 723 | |
|---|
| 724 | #require MT::Trackback; |
|---|
| 725 | #my $tb = MT::Trackback->load({ entry_id => $obj->id }); |
|---|
| 726 | #if ($tb) { |
|---|
| 727 | # require MT::TBPing; |
|---|
| 728 | # my $offset = 0; |
|---|
| 729 | # while (1) { |
|---|
| 730 | # my @pings = MT::TBPing->load( |
|---|
| 731 | # { tb_id => $tb->id, }, |
|---|
| 732 | # { offset => $offset, limit => 50, } |
|---|
| 733 | # ); |
|---|
| 734 | # last unless @pings; |
|---|
| 735 | # $offset += scalar @pings; |
|---|
| 736 | # for my $ping (@pings) { |
|---|
| 737 | # $xml .= $ping->to_xml($namespace, $args) . "\n" if $ping->to_backup; |
|---|
| 738 | # } |
|---|
| 739 | # } |
|---|
| 740 | #} |
|---|
| 741 | |
|---|
| 742 | $xml .= $obj->_entry_child_to_xml('MT::FileInfo', $namespace, $args); |
|---|
| 743 | |
|---|
| 744 | $xml; |
|---|
| 745 | } |
|---|
| 746 | |
|---|
| 747 | sub _entry_child_to_xml { |
|---|
| 748 | my $obj = shift; |
|---|
| 749 | my ($child_class, $namespace, $args) = @_; |
|---|
| 750 | my $xml = ''; |
|---|
| 751 | |
|---|
| 752 | eval "require $child_class"; |
|---|
| 753 | my $err = $@; |
|---|
| 754 | return $err if defined($err) && $err; |
|---|
| 755 | |
|---|
| 756 | my $offset = 0; |
|---|
| 757 | while (1) { |
|---|
| 758 | my @objects = $child_class->load( |
|---|
| 759 | { entry_id => $obj->id, }, |
|---|
| 760 | { offset => $offset, limit => 50, } |
|---|
| 761 | ); |
|---|
| 762 | last unless @objects; |
|---|
| 763 | $offset += scalar @objects; |
|---|
| 764 | for my $object (@objects) { |
|---|
| 765 | $xml .= $object->to_xml($namespace, $args) . "\n" if $object->to_backup; |
|---|
| 766 | } |
|---|
| 767 | } |
|---|
| 768 | $xml; |
|---|
| 769 | } |
|---|
| 770 | |
|---|
| 771 | sub children_names { |
|---|
| 772 | my $obj = shift; |
|---|
| 773 | my $children = { |
|---|
| 774 | objecttag => 'MT::ObjectTag', |
|---|
| 775 | placement => 'MT::Placement', |
|---|
| 776 | fileinfo => 'MT::FileInfo', |
|---|
| 777 | }; |
|---|
| 778 | $children; |
|---|
| 779 | } |
|---|
| 780 | |
|---|
| 781 | sub parent_names { |
|---|
| 782 | my $obj = shift; |
|---|
| 783 | my $parents = { |
|---|
| 784 | blog => 'MT::Blog', |
|---|
| 785 | author => 'MT::Author', |
|---|
| 786 | }; |
|---|
| 787 | $parents; |
|---|
| 788 | } |
|---|
| 789 | |
|---|
| 790 | package MT::Notification; |
|---|
| 791 | |
|---|
| 792 | sub parent_names { |
|---|
| 793 | my $obj = shift; |
|---|
| 794 | my $parents = { |
|---|
| 795 | blog => 'MT::Blog', |
|---|
| 796 | }; |
|---|
| 797 | $parents; |
|---|
| 798 | } |
|---|
| 799 | |
|---|
| 800 | package MT::ObjectTag; |
|---|
| 801 | |
|---|
| 802 | sub parent_names { |
|---|
| 803 | my $obj = shift; |
|---|
| 804 | my $parents = { |
|---|
| 805 | blog => 'MT::Blog', |
|---|
| 806 | tag => 'MT::Tag', |
|---|
| 807 | entry => 'MT::Entry', |
|---|
| 808 | asset => 'MT::Asset', |
|---|
| 809 | }; |
|---|
| 810 | $parents; |
|---|
| 811 | } |
|---|
| 812 | |
|---|
| 813 | sub restore_parent_ids { |
|---|
| 814 | my $obj = shift; |
|---|
| 815 | my ($data, $objects) = @_; |
|---|
| 816 | |
|---|
| 817 | my $parent_names = $obj->parent_names; |
|---|
| 818 | |
|---|
| 819 | my $done = 1; |
|---|
| 820 | for my $parent_element_name (keys %$parent_names) { |
|---|
| 821 | my $parent_class_name = $parent_names->{$parent_element_name}; |
|---|
| 822 | my $old_id = $data->{$parent_element_name . '_id'}; |
|---|
| 823 | my $new_obj = $objects->{"$parent_class_name#$old_id"}; |
|---|
| 824 | next if !(defined($new_obj) && $new_obj); |
|---|
| 825 | $data->{$parent_element_name . '_id'} = $new_obj->id; |
|---|
| 826 | $done++; |
|---|
| 827 | } |
|---|
| 828 | my $old_id = $data->{'object_id'}; |
|---|
| 829 | if (defined($old_id) && ($old_id > 0)) { |
|---|
| 830 | my $class = $parent_names->{$data->{'object_datasource'}}; |
|---|
| 831 | my $new_obj = $objects->{"$class#$old_id"}; |
|---|
| 832 | if (defined($new_obj) && $new_obj) { |
|---|
| 833 | $data->{'object_id'} = $new_obj->id; |
|---|
| 834 | $done++; |
|---|
| 835 | } |
|---|
| 836 | } else { |
|---|
| 837 | $done++; |
|---|
| 838 | } |
|---|
| 839 | (scalar(keys(%$parent_names)) == $done) ? 1 : 0; |
|---|
| 840 | } |
|---|
| 841 | |
|---|
| 842 | package MT::Permission; |
|---|
| 843 | |
|---|
| 844 | sub parent_names { |
|---|
| 845 | my $obj = shift; |
|---|
| 846 | my $parents = { |
|---|
| 847 | author => 'MT::Author', |
|---|
| 848 | blog => 'MT::Blog' |
|---|
| 849 | }; |
|---|
| 850 | $parents; |
|---|
| 851 | } |
|---|
| 852 | |
|---|
| 853 | package MT::Placement; |
|---|
| 854 | |
|---|
| 855 | sub parent_names { |
|---|
| 856 | my $obj = shift; |
|---|
| 857 | my $parents = { |
|---|
| 858 | category => 'MT::Category', |
|---|
| 859 | blog => 'MT::Blog', |
|---|
| 860 | entry => 'MT::Entry', |
|---|
| 861 | }; |
|---|
| 862 | $parents; |
|---|
| 863 | } |
|---|
| 864 | |
|---|
| 865 | package MT::Role; |
|---|
| 866 | |
|---|
| 867 | sub children_names { |
|---|
| 868 | my $obj = shift; |
|---|
| 869 | my $children = { |
|---|
| 870 | association => 'MT::Association', |
|---|
| 871 | }; |
|---|
| 872 | $children; |
|---|
| 873 | } |
|---|
| 874 | |
|---|
| 875 | package MT::Tag; |
|---|
| 876 | |
|---|
| 877 | sub children_names { |
|---|
| 878 | my $obj = shift; |
|---|
| 879 | my $children = { |
|---|
| 880 | objecttag => 'MT::ObjectTag', |
|---|
| 881 | }; |
|---|
| 882 | $children; |
|---|
| 883 | } |
|---|
| 884 | |
|---|
| 885 | package MT::TBPing; |
|---|
| 886 | |
|---|
| 887 | sub parent_names { |
|---|
| 888 | my $obj = shift; |
|---|
| 889 | my $parents = { |
|---|
| 890 | blog => 'MT::Blog', |
|---|
| 891 | }; |
|---|
| 892 | $parents; |
|---|
| 893 | } |
|---|
| 894 | |
|---|
| 895 | sub restore_parent_ids { |
|---|
| 896 | my $obj = shift; |
|---|
| 897 | my ($data, $objects) = @_; |
|---|
| 898 | |
|---|
| 899 | my $parent_names = $obj->parent_names; |
|---|
| 900 | |
|---|
| 901 | my $done = -1; |
|---|
| 902 | for my $parent_element_name (keys %$parent_names) { |
|---|
| 903 | my $parent_class_name = $parent_names->{$parent_element_name}; |
|---|
| 904 | my $old_id = $data->{$parent_element_name . '_id'}; |
|---|
| 905 | my $new_obj = $objects->{"$parent_class_name#$old_id"}; |
|---|
| 906 | next if !(defined($new_obj) && $new_obj); |
|---|
| 907 | $data->{$parent_element_name . '_id'} = $new_obj->id; |
|---|
| 908 | $done++; |
|---|
| 909 | } |
|---|
| 910 | my $old_tb_id = $data->{'tb_id'}; |
|---|
| 911 | my $new_tb; |
|---|
| 912 | require MT::Trackback; |
|---|
| 913 | my $tb = MT::Trackback->load($old_tb_id); |
|---|
| 914 | if (my $cid = $tb->category_id) { |
|---|
| 915 | my $new_obj = $objects->{"MT::Category#" . $cid}; |
|---|
| 916 | if (defined($new_obj) && $new_obj) { |
|---|
| 917 | $new_tb = MT::Trackback->load({ category_id => $new_obj->id }); |
|---|
| 918 | return 0 if (!defined($new_tb) || !$new_tb); |
|---|
| 919 | } |
|---|
| 920 | } elsif (my $eid = $tb->entry_id) { |
|---|
| 921 | my $new_obj = $objects->{"MT::Entry#" . $eid}; |
|---|
| 922 | if (defined($new_obj) && $new_obj) { |
|---|
| 923 | $new_tb = MT::Trackback->load({ entry_id => $new_obj->id }); |
|---|
| 924 | return 0 if (!defined($new_tb) || !$new_tb); |
|---|
| 925 | } |
|---|
| 926 | } |
|---|
| 927 | if (defined($new_tb) && $new_tb) { |
|---|
| 928 | $data->{'tb_id'} = $new_tb->id; |
|---|
| 929 | $done++; |
|---|
| 930 | } |
|---|
| 931 | (scalar(keys(%$parent_names)) == $done) ? 1 : 0; |
|---|
| 932 | } |
|---|
| 933 | |
|---|
| 934 | package MT::Template; |
|---|
| 935 | |
|---|
| 936 | sub children_names { |
|---|
| 937 | my $obj = shift; |
|---|
| 938 | my $children = { |
|---|
| 939 | fileinfo => 'MT::FileInfo', |
|---|
| 940 | templatemap => 'MT::TemplateMap', |
|---|
| 941 | }; |
|---|
| 942 | $children; |
|---|
| 943 | } |
|---|
| 944 | |
|---|
| 945 | sub parent_names { |
|---|
| 946 | my $obj = shift; |
|---|
| 947 | my $parents = { |
|---|
| 948 | blog => 'MT::Blog', |
|---|
| 949 | }; |
|---|
| 950 | $parents; |
|---|
| 951 | } |
|---|
| 952 | |
|---|
| 953 | package MT::TemplateMap; |
|---|
| 954 | |
|---|
| 955 | sub parent_names { |
|---|
| 956 | my $obj = shift; |
|---|
| 957 | my $parents = { |
|---|
| 958 | blog => 'MT::Blog', |
|---|
| 959 | template => 'MT::Template', |
|---|
| 960 | }; |
|---|
| 961 | $parents; |
|---|
| 962 | } |
|---|
| 963 | |
|---|
| 964 | package MT::Trackback; |
|---|
| 965 | |
|---|
| 966 | sub children_names { |
|---|
| 967 | my $obj = shift; |
|---|
| 968 | my $children = { |
|---|
| 969 | tbping => 'MT::TBPing', |
|---|
| 970 | }; |
|---|
| 971 | $children; |
|---|
| 972 | } |
|---|
| 973 | |
|---|
| 974 | sub children_to_xml { |
|---|
| 975 | my $obj = shift; |
|---|
| 976 | my ($namespace, $args) = @_; |
|---|
| 977 | |
|---|
| 978 | my $t = {}; |
|---|
| 979 | if (defined($args)) { |
|---|
| 980 | my $j = $args->{'join'}; |
|---|
| 981 | $t = $j->[2] if defined($j); |
|---|
| 982 | } |
|---|
| 983 | |
|---|
| 984 | my $xml = ''; |
|---|
| 985 | |
|---|
| 986 | my $terms = { |
|---|
| 987 | 'tb_id' => $obj->id, |
|---|
| 988 | %$t, |
|---|
| 989 | }; |
|---|
| 990 | |
|---|
| 991 | my $offset = 0; |
|---|
| 992 | while (1) { |
|---|
| 993 | my @objects = MT::TBPing->load( |
|---|
| 994 | $terms, |
|---|
| 995 | { offset => $offset, limit => 50, } |
|---|
| 996 | ); |
|---|
| 997 | last unless @objects; |
|---|
| 998 | $offset += scalar @objects; |
|---|
| 999 | for my $object (@objects) { |
|---|
| 1000 | $xml .= $object->to_xml($namespace) . "\n" if $object->to_backup; |
|---|
| 1001 | } |
|---|
| 1002 | } |
|---|
| 1003 | $xml; |
|---|
| 1004 | } |
|---|
| 1005 | |
|---|
| 1006 | sub parent_names { |
|---|
| 1007 | my $obj = shift; |
|---|
| 1008 | my $parents = { |
|---|
| 1009 | entry => 'MT::Entry', |
|---|
| 1010 | category => 'MT::Category', |
|---|
| 1011 | }; |
|---|
| 1012 | $parents; |
|---|
| 1013 | } |
|---|
| 1014 | |
|---|
| 1015 | sub restore_parent_ids { |
|---|
| 1016 | my $obj = shift; |
|---|
| 1017 | my ($data, $objects) = @_; |
|---|
| 1018 | |
|---|
| 1019 | my $result = 0; |
|---|
| 1020 | my $new_blog = $objects->{'MT::Blog#' . $data->{blog_id}}; |
|---|
| 1021 | if ($new_blog) { |
|---|
| 1022 | $data->{blog_id} = $new_blog->id; |
|---|
| 1023 | } else { |
|---|
| 1024 | return 0; |
|---|
| 1025 | } |
|---|
| 1026 | if ($data->{category_id}) { |
|---|
| 1027 | my $new_obj = $objects->{'MT::Category#' . $data->{category_id}}; |
|---|
| 1028 | if ($new_obj) { |
|---|
| 1029 | $data->{category_id} = $new_obj->id; |
|---|
| 1030 | $result = 1; |
|---|
| 1031 | } |
|---|
| 1032 | } elsif ($data->{entry_id}) { |
|---|
| 1033 | my $new_obj = $objects->{'MT::Entry#' . $data->{entry_id}}; |
|---|
| 1034 | if ($new_obj) { |
|---|
| 1035 | $data->{entry_id} = $new_obj->id; |
|---|
| 1036 | $result = 1; |
|---|
| 1037 | } |
|---|
| 1038 | } |
|---|
| 1039 | $result; |
|---|
| 1040 | } |
|---|
| 1041 | |
|---|
| 1042 | 1; |
|---|
| 1043 | __END__ |
|---|
| 1044 | |
|---|
| 1045 | =head1 NAME |
|---|
| 1046 | |
|---|
| 1047 | MT::BackupRestore |
|---|
| 1048 | |
|---|
| 1049 | =head1 METHODS |
|---|
| 1050 | |
|---|
| 1051 | =head2 backup |
|---|
| 1052 | |
|---|
| 1053 | TODO Backup I<MT::Tag>, I<MT::Author>, I<MT::Blog>, I<MT::Role>, |
|---|
| 1054 | I<MT::Category>, I<MT::Asset>, and I<MT::Entry>. Each object will |
|---|
| 1055 | be back up by MT::Object#to_xml call, which will do the actual |
|---|
| 1056 | Object ==>> XML serialization. |
|---|
| 1057 | |
|---|
| 1058 | =head2 restore_file |
|---|
| 1059 | |
|---|
| 1060 | TODO Restore MT system from an XML file which contains MT backup |
|---|
| 1061 | information (created by backup subroutine). |
|---|
| 1062 | |
|---|
| 1063 | =head2 restore_process_single_file |
|---|
| 1064 | |
|---|
| 1065 | TODO A method which will do the actual heavy lifting of the |
|---|
| 1066 | process to restore objects from an XML file. |
|---|
| 1067 | |
|---|
| 1068 | =head2 restore_directory |
|---|
| 1069 | |
|---|
| 1070 | TODO A method which reads specified directory, find a manifest file, |
|---|
| 1071 | and do the multi-file restore operation directed by the manifest file. |
|---|
| 1072 | |
|---|
| 1073 | =head2 restore_asset |
|---|
| 1074 | |
|---|
| 1075 | TODO A method which restores the assets' actual files to the |
|---|
| 1076 | specified directory. |
|---|
| 1077 | |
|---|
| 1078 | =head2 process_manifest |
|---|
| 1079 | |
|---|
| 1080 | TODO A method which is called from MT::App::CMS to process an uploaded |
|---|
| 1081 | manifest file which is to be the source of the multi-file restore |
|---|
| 1082 | operation in the MT::App::CMS. |
|---|
| 1083 | |
|---|
| 1084 | =head1 Callbacks |
|---|
| 1085 | |
|---|
| 1086 | For plugins which uses MT::Object-derived types, backup and restore |
|---|
| 1087 | operation call callbacks for plugins to inject XMLs so they are |
|---|
| 1088 | also backup, and read XML to restore objects so they are also restored. |
|---|
| 1089 | |
|---|
| 1090 | Callbacks called by the package are as follows: |
|---|
| 1091 | |
|---|
| 1092 | =over 4 |
|---|
| 1093 | |
|---|
| 1094 | =item Backup |
|---|
| 1095 | |
|---|
| 1096 | Calling convention is: |
|---|
| 1097 | |
|---|
| 1098 | callback($cb, $blog_ids) |
|---|
| 1099 | |
|---|
| 1100 | The callback is used for MT::Object-derived types used by plugins |
|---|
| 1101 | to be backup. The callback must return the object's XML representation |
|---|
| 1102 | in a string, or 1 for nothing. $blog_ids has an ARRAY reference to |
|---|
| 1103 | blog_ids which indicates what weblog a user chose to backup. It may |
|---|
| 1104 | be an empty array if a user chose Everything. |
|---|
| 1105 | |
|---|
| 1106 | =item Restore |
|---|
| 1107 | |
|---|
| 1108 | Restore callbacks are called in convention like below: |
|---|
| 1109 | |
|---|
| 1110 | MT->run_callbacks("Restore.<xml_namespace>", |
|---|
| 1111 | $data, $objects, $deferred, $callback); |
|---|
| 1112 | |
|---|
| 1113 | Where $data is a parameter which was passed to XML::SAX::Base's |
|---|
| 1114 | start_element callback method. |
|---|
| 1115 | |
|---|
| 1116 | $objects is an hash reference which contains all the restored objects |
|---|
| 1117 | in the restore session. The hash keys are stored in the format |
|---|
| 1118 | MT::ObjectClassName#old_id, and hash values are object reference |
|---|
| 1119 | of the actually restored objects (with new id). Old ids are ids |
|---|
| 1120 | which are stored in the XML files, while new ids are ids which |
|---|
| 1121 | are restored. |
|---|
| 1122 | |
|---|
| 1123 | $deferred is an hash reference which contains information about |
|---|
| 1124 | restore-deferred objects. Deferred objects are those objects |
|---|
| 1125 | which appeared in the XMl file but could not be restored because |
|---|
| 1126 | any parent objects are missing. The hash keys are stored in |
|---|
| 1127 | the format MT::ObjectClassName#old_id and hash values are 1. |
|---|
| 1128 | |
|---|
| 1129 | $callback is a code reference which will print out the passed paramter. |
|---|
| 1130 | Callback method can use this to communicate with users. |
|---|
| 1131 | |
|---|
| 1132 | If a plugin has an MT::Object derived type, the plugin will register |
|---|
| 1133 | a callback to Restore.<xmlnamespace> callback, so later the restore |
|---|
| 1134 | operation will call the callback function with parameters described above. |
|---|
| 1135 | XML Namespace is required to be registered, so an xml node can be resolved |
|---|
| 1136 | into what plugins to be called back, and can be distinguished the same |
|---|
| 1137 | element name with each other. |
|---|
| 1138 | |
|---|
| 1139 | =head1 AUTHOR & COPYRIGHT |
|---|
| 1140 | |
|---|
| 1141 | Please see L<MT/AUTHOR & COPYRIGHT>. |
|---|
| 1142 | |
|---|
| 1143 | =cut |
|---|