1 | package Bookmark; |
---|
2 | |
---|
3 | use Moose; |
---|
4 | |
---|
5 | has id => ( is => 'ro' ); |
---|
6 | has uri => ( is => 'rw' ); |
---|
7 | has title => ( is => 'rw' ); |
---|
8 | has ctime => ( is => 'ro' ); |
---|
9 | has mtime => ( |
---|
10 | is => 'ro', |
---|
11 | # mtime defaults to ctime |
---|
12 | default => sub { $_[0]->ctime }, |
---|
13 | lazy => 1, |
---|
14 | ); |
---|
15 | has tags => ( is => 'rw' ); |
---|
16 | has bookmark_uri => ( is => 'rw' ); |
---|
17 | |
---|
18 | sub BUILD { |
---|
19 | my $self = shift; |
---|
20 | my $args = shift; |
---|
21 | if ($args->{base_uri}) { |
---|
22 | $self->bookmark_uri(URI->new_abs($self->id, $args->{base_uri})); |
---|
23 | } |
---|
24 | } |
---|
25 | |
---|
26 | sub TO_JSON { |
---|
27 | my $self = shift; |
---|
28 | return { |
---|
29 | id => $self->id, |
---|
30 | uri => $self->uri, |
---|
31 | title => $self->title, |
---|
32 | ctime => $self->ctime, |
---|
33 | mtime => $self->mtime, |
---|
34 | tags => $self->tags, |
---|
35 | ($self->bookmark_uri ? (bookmark_uri => $self->bookmark_uri->canonical->as_string) : ()), |
---|
36 | }; |
---|
37 | } |
---|
38 | |
---|
39 | sub update { |
---|
40 | my $self = shift; |
---|
41 | # TODO: store the dbh somewhere better, or use a more generic "Bookmark Store" object |
---|
42 | my $dbh = shift; |
---|
43 | my $mtime = time; |
---|
44 | |
---|
45 | my $changed_uri = 0; |
---|
46 | my $sth_current = $dbh->prepare('select uri from bookmarks where id = ?'); |
---|
47 | $sth_current->execute($self->id); |
---|
48 | my ($stored_uri) = $sth_current->fetchrow_array; |
---|
49 | |
---|
50 | if ($stored_uri ne $self->uri) { |
---|
51 | # the URI has changed |
---|
52 | my $sth_update_uri = $dbh->prepare('update resources set uri = ? where uri = ?'); |
---|
53 | $sth_update_uri->execute($self->uri, $stored_uri); |
---|
54 | $changed_uri++; |
---|
55 | } |
---|
56 | |
---|
57 | # update the title |
---|
58 | # TODO: only do this if the title has changed |
---|
59 | # TODO: should we update mtime if the title changes? |
---|
60 | my $sth_update = $dbh->prepare('update resources set title = ? where uri = ?'); |
---|
61 | $sth_update->execute($self->title, $self->uri); |
---|
62 | |
---|
63 | # update the tags |
---|
64 | my $changed_tags = 0; |
---|
65 | my %new_tags = map { $_ => 1 } @{ $self->tags }; |
---|
66 | my $sth_delete_tag = $dbh->prepare('delete from tags where uri = ? and tag = ?'); |
---|
67 | my $sth_insert_tag = $dbh->prepare('insert into tags (uri, tag) values (?, ?)'); |
---|
68 | my $sth_current_tags = $dbh->prepare('select tag from tags where uri = ?'); |
---|
69 | $sth_current_tags->execute($self->uri); |
---|
70 | while (my ($tag) = $sth_current_tags->fetchrow_array) { |
---|
71 | if (!$new_tags{$tag}) { |
---|
72 | # if a current tag is not in the new tags, remove it from the database |
---|
73 | $sth_delete_tag->execute($self->uri, $tag); |
---|
74 | $changed_tags++; |
---|
75 | } else { |
---|
76 | # if a new tag is already in the database, remove it from the list of tags to add |
---|
77 | delete $new_tags{$tag}; |
---|
78 | } |
---|
79 | } |
---|
80 | for my $tag (keys %new_tags) { |
---|
81 | $sth_insert_tag->execute($self->uri, $tag); |
---|
82 | $changed_tags++; |
---|
83 | } |
---|
84 | |
---|
85 | if ($changed_uri or $changed_tags) { |
---|
86 | # update the mtime if the bookmark already existed but the tags were changed |
---|
87 | my $sth_update = $dbh->prepare('update bookmarks set mtime = ? where uri = ?'); |
---|
88 | $sth_update->execute($mtime, $self->uri); |
---|
89 | } |
---|
90 | |
---|
91 | # return the bookmark |
---|
92 | return $self; |
---|
93 | } |
---|
94 | |
---|
95 | # module return |
---|
96 | 1; |
---|