15 my $class=ref($proto) || $proto;
20 $self->{verbose}=shift;
24 my $fallbackdir=shift;
26 $dbpath=$self->find_db($init, $dbpath, $fallbackdir);
27 return undef unless($dbpath);
28 $self->{absbase}=Cwd::abs_path($self->{base});
30 my $connectstr="dbi:SQLite:dbname=$dbpath";
31 my ($user, $pass)=("", "");
34 $connectstr="dbi:Pg:dbname=id3fs";
38 my $exists=-f $dbpath;
39 $self->{dbh}=DBI->connect($connectstr, $user, $pass,
41 unless(defined($self->{dbh}))
43 die("$self->{me}: DB Error: " . $DBI::errstr . "\n");
54 $self->enable_foreign_keys();
60 my($self, $init, $dbpath, $fallbackdir)=@_;
67 if(defined ($self->{base}))
69 $file="$self->{base}/$dbfile" unless defined($file);
72 elsif(defined($fallbackdir) && -d $fallbackdir)
74 my $path=Cwd::abs_path($fallbackdir);
77 $file="$path/$dbfile";
79 $path=~s/(.*)\/.*/$1/;
81 while(! -f $file && length($path) && -d $path);
84 $file="$fallbackdir/$dbfile";
88 if(!-f $file && !$init)
90 print "$self->{me}: db not found at $file\n";
97 sub base_dir { return shift->{base}; }
102 my @schema=split(/\n\n/,join("", <DATA>));
104 for my $cmd (@schema)
106 $self->{dbh}->do($cmd);
108 if($self->{postgres})
110 $self->cmd("CREATE SEQUENCE seq");
114 my %indexes=( "idx_files_id" => "files (id)",
115 "idx_fxt_both" => "files_x_tags (files_id, tags_id)",
116 "idx_fxt_files" => "files_x_tags (files_id)",
117 "idx_fxt_tags" => "files_x_tags (tags_id)",
118 "idx_tags_id" => "tags (id)",
119 "idx_tags_name" => "tags (name)");
120 for my $index (keys %indexes)
122 $self->{dbh}->do("CREATE INDEX $index ON " . $indexes{$index});
125 $self->cmd("INSERT INTO id3fs (schema_version, last_update) VALUES (?, ?)",
126 $SCHEMA_VERSION, time());
132 my ($version)=$self->cmd_onerow("SELECT schema_version from id3fs");
133 if(!defined($version) || $version != $SCHEMA_VERSION)
135 die("$self->{me}: id3fs database version " .
136 defined($version) ? $version : '""' .
137 "not known, current version is $SCHEMA_VERSION.\n");
144 $self->cmd("ANALYZE");
147 sub enable_foreign_keys
150 $self->cmd("PRAGMA foreign_keys = ON");
155 my($self, $newval)=@_;
158 $self->cmd("UPDATE id3fs SET last_update=?", $newval);
162 ($newval)=$self->cmd_onerow("SELECT last_update from id3fs");
169 my($self, $sql, @params)=@_;
170 my $sth=$self->{dbh}->prepare($sql);
172 for my $param (@params)
174 $param="" unless(defined($param));
175 $sth->bind_param($idx++, $param);
183 my($self, @constraints)=@_;
184 if(!@constraints) # /
187 my $sql="SELECT DISTINCT name FROM tags WHERE parents_id='';";
188 my $tags=$self->cmd_rows($sql);
189 return(map { $_->[0]; } @$tags);
193 my $sql=("SELECT t2.name FROM (\n" .
194 $self->tags_subselect(@constraints) .
196 "INNER JOIN files_x_tags ON subselect.files_id=files_x_tags.files_id\n" .
197 "INNER JOIN tags t2 ON files_x_tags.tags_id=t2.id\n");
198 my ($tags, $tags_vals, $parent)=$self->constraints_tag_list(@constraints);
200 my @tags_vals=@$tags_vals;;
204 # print "TAGS: ", Dumper \@tags;
205 # print "VALS: ", Dumper \@tags_vals;
207 push(@andclauses, "( t2.parents_id=" . (defined($parent) ? $parent : "''") . " )");
210 push(@orclauses, "( t2.id NOT IN ( " . join(', ', @tags) ." ) )");
212 for my $pair (@tags_vals)
214 my($tag, $val)=@$pair;
215 # push(@orclauses, "( NOT ( t2.parents_id=$tag AND t2.id=$val ) )");
216 push(@andclauses, "( NOT ( t2.id=$tag ) )");
220 push(@andclauses, join("\n\tOR ", @orclauses));
224 $sql .= "\tWHERE\n\t\t";
225 $sql .= join("\n\tAND ", @andclauses) . "\n";
227 $sql .= "GROUP BY t2.name;";
229 my $result=$self->cmd_rows($sql);
230 my @tagnames=map { $_->[0]; } @$result;
231 print "SUBNAMES: ", join(', ', @tagnames), "\n";
237 my($self, $tagid)=@_;
238 my $sql=("SELECT DISTINCT name FROM tags\n" .
239 "WHERE parents_id=?");
240 my $tags=$self->cmd_rows($sql, $tagid);
241 my @tags=map { $_->[0]; } @$tags;
242 @tags=map { length($_) ? $_ : "NOVALUE"; } @tags;
248 my($self, @constraints)=@_;
249 if(!@constraints) # /ALL
251 my $sql="SELECT DISTINCT name FROM artists;";
252 my $tags=$self->cmd_rows($sql);
253 return(map { $_->[0]; } @$tags);
256 my $sql=("SELECT artists.name FROM (\n" .
257 $self->tags_subselect(@constraints) .
259 "INNER JOIN files ON subselect.files_id=files.id\n" .
260 "INNER JOIN artists ON files.artists_id=artists.id\n" .
261 "GROUP BY artists.name;");
263 my $result=$self->cmd_rows($sql);
264 my @tagnames=map { $_->[0]; } @$result;
265 print "ARTISTS: ", join(', ', @tagnames), "\n";
271 my($self, @constraints)=@_;
273 # FIXME: rework PathElements
274 if(ref($constraints[$#constraints]) eq "ID3FS::PathElement::Artist")
276 return $self->artist_albums($constraints[$#constraints]->{id}, @constraints);
278 my $sql=("SELECT albums.name\n" .
280 $self->tags_subselect(@constraints) .
281 "\t) AS subselect\n" .
282 "INNER JOIN files ON subselect.files_id=files.id\n" .
283 "INNER JOIN albums ON files.albums_id=albums.id\n" .
284 "GROUP BY albums.name;");
285 print "SQL(ALBUMS): \n$sql\n";
286 my $result=$self->cmd_rows($sql);
287 my @names=map { $_->[0]; } @$result;
288 print "ALBUMS: ", join(', ', @names), "\n";
294 my($self, $artist_id, @constraints)=@_;
295 my $sql=("SELECT albums.name FROM (\n" .
296 $self->tags_subselect(@constraints) .
297 "\t) AS subselect\n" .
298 "INNER JOIN files ON subselect.files_id=files.id\n" .
299 "INNER JOIN albums ON albums.id=files.albums_id\n\t" .
300 "INNER JOIN artists ON artists.id=files.artists_id\n\t" .
301 "WHERE artists.id=? and albums.name <> ''\n\t" .
302 "GROUP BY albums.name\n");
303 print "ARTIST_ALBUMS SQL: $sql\n";
304 my $result=$self->cmd_rows($sql, $artist_id);
305 my @albums=map { $_->[0]; } @$result;
306 print "ALBUMS: ", join(', ', @albums), "\n";
312 my($self, $artist_id, @constraints)=@_;
313 my $sql=("SELECT files.name FROM (\n" .
314 $self->tags_subselect(@constraints) .
315 "\t) AS subselect\n" .
316 "INNER JOIN files ON subselect.files_id=files.id\n" .
317 "INNER JOIN artists ON artists.id=files.artists_id\n\t" .
318 "INNER JOIN albums ON albums.id=files.albums_id\n\t" .
319 "WHERE artists.id=? AND albums.name=''\n\t" .
320 "GROUP BY files.name\n");
321 print "ARTIST_TRACKS SQL: $sql\n";
322 my $result=$self->cmd_rows($sql, $artist_id);
323 my @names=map { $_->[0]; } @$result;
324 print "ARTISTTRACKS: ", join(', ', @names), "\n";
330 my($self, $artist_id, $album_id)=@_;
331 my $sql=("SELECT files.name FROM files\n\t" .
332 "INNER JOIN albums ON albums.id=files.albums_id\n\t" .
333 "INNER JOIN artists ON artists.id=files.artists_id\n\t" .
334 "WHERE artists.id=? AND albums.id=?\n\t" .
335 "GROUP BY files.name\n");
336 print "ALBUM_TRACKS SQL($artist_id, $album_id): $sql\n";
337 my $result=$self->cmd_rows($sql, $artist_id, $album_id);
338 my @names=map { $_->[0]; } @$result;
339 print "TRACKS: ", join(', ', @names), "\n";
345 my($self, @constraints)=@_;
346 # FIXME: rework PathElements
347 if(ref($constraints[$#constraints]) eq "ID3FS::PathElement::Artist")
349 return $self->artist_tracks($constraints[$#constraints]->{id}, @constraints);
351 elsif(ref($constraints[$#constraints]) eq "ID3FS::PathElement::Album")
354 my $artist=$constraints[($#constraints)-1];
355 if(defined($artist) && (ref($artist) eq "ID3FS::PathElement::Artist"))
357 # should always happen
358 $artist_id=$artist->{id};
360 return $self->album_tracks($artist_id, $constraints[$#constraints]->{id});
363 my $sql=("SELECT files.name\n" .
365 $self->tags_subselect(@constraints) .
366 "\t) AS subselect\n" .
367 "INNER JOIN files ON files.id=subselect.files_id\n" .
368 "GROUP BY files.name;");
370 my $result=$self->cmd_rows($sql);
371 my @names=map { $_->[0]; } @$result;
372 print "TRACKS: ", join(', ', @names), "\n";
378 my($self, $mountpoint, @constraints)=@_;
379 if(ref($constraints[$#constraints]) eq "ID3FS::PathElement::File")
381 my $id=$constraints[$#constraints]->{id};
382 my $sql=("SELECT paths.name, files.name FROM files\n" .
383 "INNER JOIN paths ON files.paths_id=paths.id\n" .
384 "WHERE files.id=?\n" .
385 "GROUP BY paths.name, files.name");
386 print "FILENAME SQL: $sql\n";
387 my ($path, $name)=$self->cmd_onerow($sql, $id);
388 my $id3fs_path=join('/', map { $_->{name}; } @constraints);
389 return($self->relativise($path, $name, $mountpoint, $id3fs_path));
391 die("DB::filename: unhandled case\n"); #FIXME
396 return shift->tags_subselect_and(@_);
400 sub tags_subselect_and_not
402 my($self,@constraints)=@_;
403 my ($tags, $tags_vals, $parent)=$self->constraints_tag_list(@constraints);
405 my @tags_vals=@$tags_vals;;
413 $sql="\tSELECT fxt" . scalar(@tags) . ".files_id FROM files_x_tags fxt1\n";
414 push(@andclauses, "\t\tfxt${cnt}.tags_id=$tag");
418 $sql .= ("\tLEFT JOIN files_x_tags fxt$cnt ON fxt" .
419 ($cnt-1) . ".files_id=fxt${cnt}.files_id\n");
420 push(@andclauses, "\t\tfxt${cnt}.tags_id IS NULL");
422 print "AND: @andclauses\n";
427 $sql .= "\tWHERE\n\t\t";
428 $sql .= join(" AND\n\t\t", @andclauses) . "\n";
430 $sql .= "\tGROUP BY fxt". scalar(@tags).".files_id\n";
435 sub tags_subselect_and
437 my($self,@constraints)=@_;
438 my ($tags, $tags_vals, $parent)=$self->constraints_tag_list(@constraints);
440 my @tags_vals=@$tags_vals;;
448 $sql="\tSELECT fxt" . scalar(@tags) . ".files_id FROM files_x_tags fxt1\n";
452 $sql .= ("\tINNER JOIN files_x_tags fxt$cnt ON fxt" .
453 ($cnt-1) . ".files_id=fxt${cnt}.files_id\n");
455 push(@andclauses, "\t\tfxt${cnt}.tags_id = $tag");
456 print "AND: @andclauses\n";
461 $sql .= "\tWHERE\n\t\t";
462 $sql .= join(" AND\n\t\t", @andclauses) . "\n";
464 $sql .= "\tGROUP BY fxt". scalar(@tags).".files_id\n";
468 sub tags_subselect_or
470 my($self,@constraints)=@_;
471 my ($tags, $tags_vals, $parent)=$self->constraints_tag_list(@constraints);
473 my @tags_vals=@$tags_vals;;
475 my $sql=("\tSELECT files_x_tags.files_id FROM tags t1\n" .
476 "\tINNER JOIN files_x_tags ON t1.id=files_x_tags.tags_id\n");
482 push(@andclauses, "( t1.parents_id=" . (defined($parent) ? $parent : "''") . " )");
483 push(@andclauses, "( t1.id IN ( " . join(', ', @tags) ." ) )");
485 for my $pair (@tags_vals)
487 my($tag, $val)=@$pair;
488 push(@orclauses, "( t1.parents_id=$tag AND t1.id=$val )");
490 # push(@andclauses, "( t1.parents_id=" . (defined($parent) ? $parent : "''") . " )");
493 push(@andclauses, join("\n\t\tOR ", @orclauses));
497 $sql .= "\tWHERE\n\t\t";
498 $sql .= join("\n\t\tAND ", @andclauses) . "\n";
500 $sql .= "\tGROUP BY files_x_tags.files_id\n";
504 sub constraints_tag_list
506 my($self, @constraints)=@_;
510 for my $constraint (@constraints)
512 # print ref($constraint), ": ", $constraint->{name}, "\n";
513 if(ref($constraint) eq "ID3FS::PathElement::Tag")
515 if(defined($lasttag))
518 push(@tags_vals, [$lasttag, $constraint->{id}]) if defined($constraint->{id});
521 elsif($self->tag_has_values($constraint->{id}))
523 # print "HASVALUES\n";
524 $lasttag=$constraint->{id} if defined($constraint->{id});
528 # print "NOVALUES\n";
529 push(@tags, $constraint->{id}) if(defined($constraint->{id}));
533 unless($self->{postgres})
535 @tags=map{ "\"$_\""; } @tags;
536 @tags_vals=map( { [ map({ "\"$_\""; } @$_ ) ] } @tags_vals);
537 $lasttag="\"$lasttag\"" if defined($lasttag);
539 return(\@tags, \@tags_vals, $lasttag);
545 my($self, $path, $name, $mountpoint, $id3fs_path)=@_;
546 $id3fs_path=~s/(.*)\/.*/$1/;
547 my $rpath="$self->{absbase}/$path";
548 my $vpath="$mountpoint/$id3fs_path";
549 my @path=split(/\//,$rpath);
550 my @rel=split(/\//,$vpath);
551 #absolute paths have empty first element due to leading /
552 shift(@path) if($path[0] eq "");
553 shift(@rel) if($rel[0] eq "");
554 if($path[0] ne $rel[0])
556 #no path in common, return absolute
557 print "FAIL: NO PATHS IN COMMON\n";
560 # f: /home/foo/bar/baz.mp3
561 # r: /home/ianb/music/albums
562 while(@path && @rel && ($path[0] eq $rel[0]))
569 my $upcount=scalar(@rel);
570 my $result="../" x $upcount;
571 $result .= join("/",@path);
579 my $sql=("SELECT tags.name FROM tags\n" .
580 "WHERE tags.parents_id=''\n" .
581 "GROUP BY tags.name\n");
582 my $result=$self->cmd_rows($sql);
583 my @names=map { $_->[0]; } @$result;
589 # FIXME: only shows one level of tag depth
591 my $sql=("SELECT p.name, t.name FROM tags t\n" .
592 "INNER JOIN tags p ON t.parents_id=p.id\n" .
593 "GROUP BY p.name, t.name\n");
595 my $result=$self->cmd_rows($sql);
597 for my $pair (@$result)
599 push(@{$tags->{$pair->[0]}}, $pair->[1]);
606 my($self, $type, $val)=@_;
607 my $sql="SELECT id FROM $type WHERE name=?";
608 my ($id)=$self->cmd_onerow($sql, $val);
616 $relpath =~ s/^\Q$self->{base}\E\/?//;
617 my($filepart,$pathpart);
625 ($pathpart, $filepart) = ($relpath =~ /(.*)\/(.*)/);
627 my $file=ID3FS::AudioFile->new($path, $self->{me});
628 return unless(defined($file));
629 my $artist=$file->artist();
630 my $album=$file->album();
631 my $v1genre=$file->v1genre();
632 my $year=$file->year();
633 my $audiotype=$file->audiotype();
634 my @tags=$file->tags();
635 my $haspic=$file->haspic();
637 $artist=undef unless($self->ok($artist));
638 print "$self->{me}: $path: no artist tag defined\n" unless(defined($artist));
639 my $artist_id=$self->add_to_table("artists", $artist);
640 my $path_id=$self->add_to_table("paths", $pathpart);
641 $album=undef unless($self->ok($album));
642 if($self->{verbose} && !defined($album))
644 print "$self->{me}: $path: no album tag defined\n";
647 my $albums_id=$self->add_to_table("albums", $album);
648 my $file_id=$self->add_to_table("files", $filepart,
649 { "artists_id" => $artist_id,
650 "albums_id" => $albums_id,
651 "paths_id" => $path_id });
654 $self->add_tag($file_id, @$tag);
659 $self->add_tag($file_id, "year", $year);
660 if($year=~/^(\d\d\d)\d$/)
662 $self->add_tag($file_id, "decade", "${1}0s");
666 if($self->ok($v1genre))
668 $self->add_tag($file_id, "v1genre", $v1genre);
673 $self->add_tag($file_id, "haspic", undef);
679 my($self, $file_id, $tag, $value)=@_;
680 my $tag_id=$self->add_to_table("tags", $tag,
681 { "parents_id" => undef });
682 $self->add_relation("files_x_tags",
683 { "files_id" => $file_id,
684 "tags_id" => $tag_id });
685 if(defined($value) && length($value))
687 my $val_id=$self->add_to_table("tags", $value,
688 { "parents_id" => $tag_id });
689 $self->add_relation("files_x_tags",
690 { "files_id" => $file_id,
691 "tags_id" => $val_id });
697 my($self, $table, $name, $extradata)=@_;
698 my $id=$self->lookup_id($table, $name);
701 my $sql="INSERT INTO $table (";
702 $sql .= "id, " if($self->{postgres});
704 if(defined($extradata))
706 push(@fields, sort keys(%$extradata));
708 $sql .= join(", ", @fields);
710 $sql .=") nextval('seq'), " if($self->{postgres});
711 $sql .= join(", ", map { "?"; } @fields);
713 $id=$self->cmd_id($sql, $name, map { $extradata->{$_} || ""; } sort keys %$extradata);
720 my ($self, $relname, $fields)=@_;
721 return if($self->relation_exists($relname, $fields));
722 my $sql="INSERT INTO $relname (";
723 $sql .= join(", ", sort keys(%$fields));
724 $sql .= ") VALUES (";
725 $sql .= join(", ", map { "?"; } sort keys(%$fields));
727 $self->cmd($sql, map { $fields->{$_}; } sort keys(%$fields));
732 my($self, $table, $name)=@_;
733 my($id)=$self->cmd_onerow("SELECT id FROM $table where name=?", $name);
740 my $sql=("SELECT COUNT(*) FROM tags\n\t" .
741 "WHERE tags.parents_id=?\n");
742 my ($rows)=$self->cmd_onerow($sql, $id);
749 $dir=~s/^$self->{base}\/?//;
750 my $sql=("SELECT files.name FROM files\n" .
751 "INNER JOIN paths ON files.paths_id=paths.id\n" .
752 "WHERE paths.name=?\n");
753 my $files=$self->cmd_rows($sql, $dir);
754 return(map { $_->[0]; } @$files);
757 sub prune_directories
760 my $sql=("SELECT name, id FROM paths ORDER BY name\n");
761 my $pathsref=$self->cmd_rows($sql);
763 for my $pathpair (@$pathsref)
765 my($path, $id)=@$pathpair;
766 my $fullpath="$self->{absbase}/$path";
772 $self->prune_paths(@ids);
780 my $sql=("DELETE FROM files WHERE paths_id IN (\n\t" .
781 join(', ', map { "\"$_\""; } @ids). "\n\t)");
782 print "SQL: \n", $sql, "\n";
790 DELETE FROM artists WHERE id IN (
791 SELECT artists.id FROM artists
792 LEFT JOIN files ON files.artists_id=artists.id
793 WHERE files.id IS NULL);
795 DELETE FROM albums WHERE id IN (
796 SELECT albums.id FROM albums
797 LEFT JOIN files ON files.albums_id=albums.id
798 WHERE files.id IS NULL);
800 DELETE FROM paths WHERE id IN (
801 SELECT paths.id FROM paths
802 LEFT JOIN files ON files.paths_id=paths.id
803 WHERE files.id IS NULL);
805 DELETE FROM files_x_tags WHERE files_id IN (
806 SELECT files_x_tags.files_id FROM files_x_tags
807 LEFT JOIN files ON files.id=files_x_tags.files_id
808 WHERE files.id IS NULL);
810 DELETE FROM tags WHERE id IN (
811 SELECT tags.id FROM tags
812 LEFT JOIN files_x_tags ON files_x_tags.tags_id=tags.id
813 WHERE files_x_tags.files_id IS NULL);
818 my @sql=split(/\n\n/, $sql);
819 $self->cmd($_) for (@sql);
824 my ($self, $relname, $fields)=@_;
825 my $sql="SELECT count(1) FROM $relname WHERE ";
828 for my $field (keys %$fields)
831 push(@vals,$fields->{$field});
833 $sql .= join(' AND ', map { "$_=?"; } @exprs);
834 my ($ret)=$self->cmd_onerow($sql, @vals);
840 my($self, $thing)=@_;
841 return(defined($thing) && length($thing) && $thing =~ /\S+/);
846 my ($self, @args)=@_;
847 # don't care about retcode
848 $self->cmd_sth(@args);
853 my ($self, @args)=@_;
854 my $sth=$self->cmd_sth(@args);
855 return($sth->fetchrow_array());
860 my ($self, @args)=@_;
861 my $sth=$self->cmd_sth(@args);
862 return $sth->fetchall_arrayref();
867 my ($self, @args)=@_;
868 $self->cmd_sth(@args);
869 return($self->last_insert_id());
875 if($self->{postgres})
877 return $self->{dbh}->last_insert_id(undef, undef, undef, undef,
878 { sequence => "seq" });
882 return $self->{dbh}->last_insert_id("","","","");
889 schema_version INTEGER,
894 id INTEGER PRIMARY KEY,
898 CREATE TABLE artists (
899 id INTEGER PRIMARY KEY,
903 CREATE TABLE albums (
904 id INTEGER PRIMARY KEY,
909 id INTEGER PRIMARY KEY,
914 FOREIGN KEY(artists_id) REFERENCES artists(id) ON DELETE CASCADE ON UPDATE CASCADE,
915 FOREIGN KEY(albums_id) REFERENCES albums(id) ON DELETE CASCADE ON UPDATE CASCADE,
916 FOREIGN KEY(paths_id) REFERENCES paths(id) ON DELETE CASCADE ON UPDATE CASCADE
920 id INTEGER PRIMARY KEY,
925 CREATE TABLE files_x_tags (
928 FOREIGN KEY(files_id) REFERENCES files(id) ON DELETE CASCADE ON UPDATE CASCADE,
929 FOREIGN KEY(tags_id) REFERENCES tags(id) ON DELETE CASCADE ON UPDATE CASCADE