/[couchdb]/scripts/reblog2couchdb.pl
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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Contents of /scripts/reblog2couchdb.pl

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Revision 10 - (show annotations)
Fri Aug 8 19:19:12 2008 UTC (15 years, 8 months ago) by dpavlin
File MIME type: text/plain
File size: 2555 byte(s)
- import just published items from reblog
- better messages
1 #!/usr/bin/perl -w
2
3 use strict;
4 use DBI;
5 use CouchDB::Client;
6 use Data::Dump qw/dump/;
7
8 $|++;
9
10 my $database = 'reblog';
11
12 my $dbi = "DBI:mysql:database=$database";
13 $dbi .= ";host=127.0.0.1;port=13306"; # XXX over ssh
14
15 my $sql = qq{
16 select
17 items.id as _id,
18 items.*,
19 feeds.url as feed_url,
20 feeds.title as feed_title,
21 feeds.link as feed_link,
22 feeds.description as feed_description
23 -- t.value_long as tags
24 from items
25 join items_userdata on items.id = item_id
26 join feeds on items.feed_id = feeds.id
27 -- left outer join items_userdata as t on items.id = t.item_id and t.label='tags'
28 where items.id > ? and items_userdata.label = 'published' and items_userdata.value_numeric = 1
29 order by items.id asc
30 limit 1000
31 };
32
33 my $c = CouchDB::Client->new(uri => 'http://localhost:5984/');
34
35 $c->testConnection or die "The server cannot be reached";
36 print "CouchDB version " . $c->serverInfo->{version} . "\n";
37 my $db = $c->newDB( $database );
38 $db->create unless $c->dbExists( $database );
39
40 my $status = $db->newDoc( '_sync' );
41 eval { $status->retrieve };
42 $status->create if $@;
43
44 print "status ",dump( $status->{data} ), "\n";
45
46 my $last_row = $status->{data}->{last_row_id} || 0;
47
48 sub commit_last_row {
49 warn "commit_last_row $last_row\n";
50 $status->{data}->{last_row_id} = $last_row;
51 $status->update;
52 }
53
54 my $dbh = DBI->connect($dbi,"","") || die $DBI::errstr;
55
56 print "Fetching items from $dbi id > $last_row\n";
57
58 my $sth = $dbh->prepare($sql) || die $dbh->errstr();
59 $sth->execute( $last_row ) || die $sth->errstr();
60
61 warn dump( $sth->{NAME} );
62
63 print "found ",$sth->rows," items to process...\n";
64
65 my $pk = 'id';
66
67 my $count = 0;
68
69 while (my $row = $sth->fetchrow_hashref() ) {
70 my $_id = $row->{_id} || die "row needs _id";
71 my $doc = $db->newDoc( $_id );
72
73 sub row2doc {
74 my ( $row, $doc ) = @_;
75 my $a = delete( $row->{xml} );
76 $doc->addAttachment( 'item.xml', 'application/xhtml+xml', $a ) if $a;
77 my $a = delete( $row->{content} );
78 $doc->addAttachment( 'content.html', 'text/html', $a ) if $a;
79 $doc->{data} = $row;
80 return $doc;
81 }
82
83 row2doc( $row, $doc );
84
85 eval { $doc->create };
86 if ( $@ ) {
87 $doc->retrieve;
88 row2doc( $row, $doc )->update;
89 # eval { $doc->update };
90 warn $@ ? "$count ERROR $_id $@\n" : "$count updated $_id\n";
91 } else {
92 warn "$count created $_id\n";
93 }
94
95 $last_row = $row->{id};
96 $count++;
97
98 commit_last_row if $count % 100 == 0 # checkpoint every 100 records
99 }
100
101 commit_last_row;
102
103 __END__
104
105 $sql = qq{
106 update items_userdata
107 set value_numeric = 1
108 where label = 'read' and item_id in ($ids)
109 };
110
111 $dbh->do( $sql );
112

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