X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2FID3FS%2FDB.pm;h=9369fbfc35503d190ca7d1635cb3d42c49ca2934;hb=e205d12a8800aa5341f62f3117df5a40f0b57675;hp=0c344d94aca6bda1e10a5488eebfdc8cfcdb4839;hpb=573f37531cdfe9266457315980580a5720313acd;p=id3fs.git diff --git a/lib/ID3FS/DB.pm b/lib/ID3FS/DB.pm index 0c344d9..9369fbf 100644 --- a/lib/ID3FS/DB.pm +++ b/lib/ID3FS/DB.pm @@ -17,20 +17,17 @@ sub new bless($self,$class); $self->{me}=shift; - $self->{dbpath}=shift; + $self->{verbose}=shift; + my $init=shift; + my $dbpath=shift; $self->{base}=shift; - $self->{fallbackdir}=shift; + my $fallbackdir=shift; - if(!defined($self->{base}) && - defined($self->{fallbackdir}) && - -d $self->{fallbackdir}) - { - $self->{base}=$self->{fallbackdir}; - } - $self->{dbpath}="$self->{base}/$dbfile" unless(defined($self->{dbpath})); + $dbpath=$self->find_db($init, $dbpath, $fallbackdir); + return undef unless($dbpath); $self->{absbase}=Cwd::abs_path($self->{base}); - my $connectstr="dbi:SQLite:dbname=$self->{dbpath}"; + my $connectstr="dbi:SQLite:dbname=$dbpath"; my ($user, $pass)=("", ""); if($self->{postgres}) { @@ -38,7 +35,7 @@ sub new $user="ianb"; $pass="foo"; } - my $exists=-f $self->{dbpath}; + my $exists=-f $dbpath; $self->{dbh}=DBI->connect($connectstr, $user, $pass, { AutoCommit=>1 } ); unless(defined($self->{dbh})) @@ -58,6 +55,47 @@ sub new return $self; } +sub find_db +{ + my($self, $init, $dbpath, $fallbackdir)=@_; + my $file=undef; + my $base=undef; + if(defined($dbpath)) + { + $file=$dbpath; + } + if(defined ($self->{base})) + { + $file="$self->{base}/$dbfile" unless defined($file); + $base=$self->{base}; + } + elsif(defined($fallbackdir) && -d $fallbackdir) + { + my $path=Cwd::abs_path($fallbackdir); + do + { + $file="$path/$dbfile"; + $base=$path; + $path=~s/(.*)\/.*/$1/; + } + while(! -f $file && length($path) && -d $path); + if(! -f $file) + { + $file="$fallbackdir/$dbfile"; + $base=$fallbackdir; + } + } + if(!-f $file && !$init) + { + print "$self->{me}: db not found at $file\n"; + return undef; + } + $self->{base}=$base; + return $file; +} + +sub base_dir { return shift->{base}; } + sub create { my($self,$name)=@_; @@ -100,6 +138,12 @@ sub checkschema } } +sub analyze +{ + my $self=shift; + $self->cmd("ANALYZE"); +} + sub enable_foreign_keys { my $self=shift; @@ -140,31 +184,47 @@ sub tags if(!@constraints) # / { # FIXME: add ALL? - my $sql="SELECT DISTINCT name FROM tags;"; + my $sql="SELECT DISTINCT name FROM tags WHERE parents_id='';"; my $tags=$self->cmd_rows($sql); return(map { $_->[0]; } @$tags); } my @ids=(); - my $main_sql_start=("SELECT t2.name\n" . - "\tFROM (SELECT files_id FROM tags t1\n" . - "\t\tINNER JOIN files_x_tags ON t1.id=files_x_tags.tags_id\n" . - "\t\tWHERE t1.id in\n\t\t\t("); - my $main_sql_mid=(")\n\t\t) AS subselect\n" . - "\tINNER JOIN files_x_tags ON subselect.files_id=files_x_tags.files_id\n" . - "\tINNER JOIN tags t2 ON files_x_tags.tags_id=t2.id\n" . - "\tWHERE t2.id NOT IN ("); - my $main_sql_end=")\n\tGROUP BY t2.name;"; - while(my $constraint=shift @constraints) - { - my $cid=$constraint->{id}; - push(@ids, $cid); - } - @ids = map( { "\"$_\""; } @ids) unless($self->{postgres}); - my $tagstr=join(", ", @ids); - my $sql = ($main_sql_start . $tagstr . - $main_sql_mid . $tagstr . - $main_sql_end); + my $sql=("SELECT t2.name FROM (\n" . + $self->tags_subselect(@constraints) . + ") AS subselect\n" . + "INNER JOIN files_x_tags ON subselect.files_id=files_x_tags.files_id\n" . + "INNER JOIN tags t2 ON files_x_tags.tags_id=t2.id\n"); + my ($tags, $tags_vals, $parent)=$self->constraints_tag_list(@constraints); + my @tags=@$tags; + my @tags_vals=@$tags_vals;; + my @orclauses=(); + my @andclauses=(); + use Data::Dumper; +# print "TAGS: ", Dumper \@tags; +# print "VALS: ", Dumper \@tags_vals; + + push(@andclauses, "( t2.parents_id=" . (defined($parent) ? $parent : "''") . " )"); + if(@tags) + { + push(@orclauses, "( t2.id NOT IN ( " . join(', ', @tags) ." ) )"); + } + for my $pair (@tags_vals) + { + my($tag, $val)=@$pair; +# push(@orclauses, "( NOT ( t2.parents_id=$tag AND t2.id=$val ) )"); + push(@andclauses, "( NOT ( t2.id=$tag ) )"); + } + if(@orclauses) + { + push(@andclauses, join("\n\tOR ", @orclauses)); + } + if(@andclauses) + { + $sql .= "\tWHERE\n\t\t"; + $sql .= join("\n\tAND ", @andclauses) . "\n"; + } + $sql .= "GROUP BY t2.name;"; print "SQL: $sql\n"; my $result=$self->cmd_rows($sql); my @tagnames=map { $_->[0]; } @$result; @@ -175,9 +235,8 @@ sub tags sub tag_values { my($self, $tagid)=@_; - my $sql=("SELECT DISTINCT tagvals.name FROM tagvals\n" . - "INNER JOIN tags_x_tagvals ON tagvals.id=tags_x_tagvals.tagvals_id\n" . - "WHERE tags_x_tagvals.tags_id=?"); + my $sql=("SELECT DISTINCT name FROM tags\n" . + "WHERE parents_id=?"); my $tags=$self->cmd_rows($sql, $tagid); my @tags=map { $_->[0]; } @$tags; @tags=map { length($_) ? $_ : "NOVALUE"; } @tags; @@ -194,23 +253,12 @@ sub artists return(map { $_->[0]; } @$tags); } my @ids=(); - my $main_sql_start=("SELECT artists.name\n" . - "\tFROM (SELECT files_id FROM tags\n" . - "\t\tINNER JOIN files_x_tags ON tags.id=files_x_tags.tags_id\n" . - "\t\tWHERE tags.id in\n\t\t\t("); - my $main_sql_end=(")\n\t\t) AS subselect\n" . - "\tINNER JOIN files ON subselect.files_id=files.id\n" . - "\tINNER JOIN artists ON files.artists_id=artists.id\n" . - "\n\tGROUP BY artists.name;"); - while(my $constraint=shift @constraints) - { - my $cid=$constraint->{id}; - push(@ids, $cid); - } - @ids = map( { "\"$_\""; } @ids) unless($self->{postgres}); - my $tagstr=join(", ", @ids); - my $sql = ($main_sql_start . $tagstr . - $main_sql_end); + my $sql=("SELECT artists.name FROM (\n" . + $self->tags_subselect(@constraints) . + ") AS subselect\n" . + "INNER JOIN files ON subselect.files_id=files.id\n" . + "INNER JOIN artists ON files.artists_id=artists.id\n" . + "GROUP BY artists.name;"); print "SQL: $sql\n"; my $result=$self->cmd_rows($sql); my @tagnames=map { $_->[0]; } @$result; @@ -225,25 +273,16 @@ sub albums # FIXME: rework PathElements if(ref($constraints[$#constraints]) eq "ID3FS::PathElement::Artist") { - return $self->artist_albums($constraints[$#constraints]->{id}); - } - my $main_sql_start=("SELECT albums.name\n" . - "\tFROM (SELECT files_id FROM tags\n" . - "\t\tINNER JOIN files_x_tags ON tags.id=files_x_tags.tags_id\n" . - "\t\tWHERE tags.id in\n\t\t\t("); - my $main_sql_end=(")\n\t\t) AS subselect\n" . - "\tINNER JOIN files ON subselect.files_id=files.id\n" . - "\tINNER JOIN albums ON files.albums_id=albums.id\n" . - "\n\tGROUP BY albums.name;"); - while(my $constraint=shift @constraints) - { - my $cid=$constraint->{id}; - push(@ids, $cid); - } - @ids = map( { "\"$_\""; } @ids) unless($self->{postgres}); - my $str=join(", ", @ids); - my $sql = ($main_sql_start . $str . - $main_sql_end); + return $self->artist_albums($constraints[$#constraints]->{id}, @constraints); + } + my $sql=("SELECT albums.name\n" . + "\tFROM (\n" . + $self->tags_subselect(@constraints) . + "\t) AS subselect\n" . + "INNER JOIN files ON subselect.files_id=files.id\n" . + "INNER JOIN albums ON files.albums_id=albums.id\n" . + "GROUP BY albums.name;"); + print "SQL(ALBUMS): \n$sql\n"; my $result=$self->cmd_rows($sql); my @names=map { $_->[0]; } @$result; print "ALBUMS: ", join(', ', @names), "\n"; @@ -252,8 +291,11 @@ sub albums sub artist_albums { - my($self, $artist_id)=@_; - my $sql=("SELECT albums.name FROM files\n\t" . + my($self, $artist_id, @constraints)=@_; + my $sql=("SELECT albums.name FROM (\n" . + $self->tags_subselect(@constraints) . + "\t) AS subselect\n" . + "INNER JOIN files ON subselect.files_id=files.id\n" . "INNER JOIN albums ON albums.id=files.albums_id\n\t" . "INNER JOIN artists ON artists.id=files.artists_id\n\t" . "WHERE artists.id=? and albums.name <> ''\n\t" . @@ -267,8 +309,11 @@ sub artist_albums sub artist_tracks { - my($self, $artist_id)=@_; - my $sql=("SELECT files.name FROM files\n\t" . + my($self, $artist_id, @constraints)=@_; + my $sql=("SELECT files.name FROM (\n" . + $self->tags_subselect(@constraints) . + "\t) AS subselect\n" . + "INNER JOIN files ON subselect.files_id=files.id\n" . "INNER JOIN artists ON artists.id=files.artists_id\n\t" . "INNER JOIN albums ON albums.id=files.albums_id\n\t" . "WHERE artists.id=? AND albums.name=''\n\t" . @@ -276,7 +321,6 @@ sub artist_tracks print "ARTIST_TRACKS SQL: $sql\n"; my $result=$self->cmd_rows($sql, $artist_id); my @names=map { $_->[0]; } @$result; - @names = map { s/.*\///; $_; } @names; print "ARTISTTRACKS: ", join(', ', @names), "\n"; return(@names); } @@ -292,7 +336,6 @@ sub album_tracks print "ALBUM_TRACKS SQL($artist_id, $album_id): $sql\n"; my $result=$self->cmd_rows($sql, $artist_id, $album_id); my @names=map { $_->[0]; } @$result; - @names = map { s/.*\///; $_;} @names; print "TRACKS: ", join(', ', @names), "\n"; return(@names); } @@ -303,7 +346,7 @@ sub tracks # FIXME: rework PathElements if(ref($constraints[$#constraints]) eq "ID3FS::PathElement::Artist") { - return $self->artist_tracks($constraints[$#constraints]->{id}); + return $self->artist_tracks($constraints[$#constraints]->{id}, @constraints); } elsif(ref($constraints[$#constraints]) eq "ID3FS::PathElement::Album") { @@ -317,34 +360,22 @@ sub tracks return $self->album_tracks($artist_id, $constraints[$#constraints]->{id}); } - my $main_sql_start=("SELECT files.name\n" . - "\tFROM (SELECT files_id FROM tags\n" . - "\t\tINNER JOIN files_x_tags ON tags.id=files_x_tags.tags_id\n" . - "\t\tWHERE tags.id in\n\t\t\t("); - my $main_sql_end=(")\n\t\t) AS subselect\n" . - "\tINNER JOIN files ON files.id=subselect.files_id" . - "\tGROUP BY files.name;"); - my @ids; - while(my $constraint=shift @constraints) - { - my $cid=$constraint->{id}; - push(@ids, $cid); - } - @ids = map( { "\"$_\""; } @ids) unless($self->{postgres}); - my $str=join(", ", @ids); - my $sql = ($main_sql_start . $str . - $main_sql_end); + my $sql=("SELECT files.name\n" . + "\tFROM (\n" . + $self->tags_subselect(@constraints) . + "\t) AS subselect\n" . + "INNER JOIN files ON files.id=subselect.files_id\n" . + "GROUP BY files.name;"); print "SQL: $sql\n"; my $result=$self->cmd_rows($sql); my @names=map { $_->[0]; } @$result; - @names = map { s/.*\///; $_; } @names; print "TRACKS: ", join(', ', @names), "\n"; return(@names); } sub filename { - my($self, @constraints)=@_; + my($self, $mountpoint, @constraints)=@_; if(ref($constraints[$#constraints]) eq "ID3FS::PathElement::File") { my $id=$constraints[$#constraints]->{id}; @@ -354,11 +385,222 @@ sub filename "GROUP BY paths.name, files.name"); print "FILENAME SQL: $sql\n"; my ($path, $name)=$self->cmd_onerow($sql, $id); - return($self->{absbase} . "/$path/$name"); + my $id3fs_path=join('/', map { $_->{name}; } @constraints); + return($self->relativise($path, $name, $mountpoint, $id3fs_path)); } die("DB::filename: unhandled case\n"); #FIXME } +sub tags_subselect +{ + return shift->tags_subselect_and(@_); +} + + +sub tags_subselect_and_not +{ + my($self,@constraints)=@_; + my ($tags, $tags_vals, $parent)=$self->constraints_tag_list(@constraints); + my @tags=@$tags; + my @tags_vals=@$tags_vals;; + my $cnt=1; + my @andclauses=(); + my $sql=''; + for my $tag (@tags) + { + if($cnt == 1) + { + $sql="\tSELECT fxt" . scalar(@tags) . ".files_id FROM files_x_tags fxt1\n"; + push(@andclauses, "\t\tfxt${cnt}.tags_id=$tag"); + } + else + { + $sql .= ("\tLEFT JOIN files_x_tags fxt$cnt ON fxt" . + ($cnt-1) . ".files_id=fxt${cnt}.files_id\n"); + push(@andclauses, "\t\tfxt${cnt}.tags_id IS NULL"); + } + print "AND: @andclauses\n"; + $cnt++; + } + if(@andclauses) + { + $sql .= "\tWHERE\n\t\t"; + $sql .= join(" AND\n\t\t", @andclauses) . "\n"; + } + $sql .= "\tGROUP BY fxt". scalar(@tags).".files_id\n"; + return $sql; +} + + +sub tags_subselect_and +{ + my($self,@constraints)=@_; + my ($tags, $tags_vals, $parent)=$self->constraints_tag_list(@constraints); + my @tags=@$tags; + my @tags_vals=@$tags_vals;; + my $cnt=1; + my @andclauses=(); + my $sql=''; + for my $tag (@tags) + { + if($cnt == 1) + { + $sql="\tSELECT fxt" . scalar(@tags) . ".files_id FROM files_x_tags fxt1\n"; + } + else + { + $sql .= ("\tINNER JOIN files_x_tags fxt$cnt ON fxt" . + ($cnt-1) . ".files_id=fxt${cnt}.files_id\n"); + } + push(@andclauses, "\t\tfxt${cnt}.tags_id = $tag"); + print "AND: @andclauses\n"; + $cnt++; + } + if(@andclauses) + { + $sql .= "\tWHERE\n\t\t"; + $sql .= join(" AND\n\t\t", @andclauses) . "\n"; + } + $sql .= "\tGROUP BY fxt". scalar(@tags).".files_id\n"; + return $sql; +} + +sub tags_subselect_or +{ + my($self,@constraints)=@_; + my ($tags, $tags_vals, $parent)=$self->constraints_tag_list(@constraints); + my @tags=@$tags; + my @tags_vals=@$tags_vals;; + + my $sql=("\tSELECT files_x_tags.files_id FROM tags t1\n" . + "\tINNER JOIN files_x_tags ON t1.id=files_x_tags.tags_id\n"); + my @orclauses=(); + my @andclauses=(); + # FIXME: and / or? + if(@tags) + { + push(@andclauses, "( t1.parents_id=" . (defined($parent) ? $parent : "''") . " )"); + push(@andclauses, "( t1.id IN ( " . join(', ', @tags) ." ) )"); + } + for my $pair (@tags_vals) + { + my($tag, $val)=@$pair; + push(@orclauses, "( t1.parents_id=$tag AND t1.id=$val )"); + } +# push(@andclauses, "( t1.parents_id=" . (defined($parent) ? $parent : "''") . " )"); + if(@orclauses) + { + push(@andclauses, join("\n\t\tOR ", @orclauses)); + } + if(@andclauses) + { + $sql .= "\tWHERE\n\t\t"; + $sql .= join("\n\t\tAND ", @andclauses) . "\n"; + } + $sql .= "\tGROUP BY files_x_tags.files_id\n"; + return $sql; +} + +sub constraints_tag_list +{ + my($self, @constraints)=@_; + my $lasttag=undef; + my @tags=(); + my @tags_vals=(); + for my $constraint (@constraints) + { +# print ref($constraint), ": ", $constraint->{name}, "\n"; + if(ref($constraint) eq "ID3FS::PathElement::Tag") + { + if(defined($lasttag)) + { +# print "TAGVAL\n"; + push(@tags_vals, [$lasttag, $constraint->{id}]) if defined($constraint->{id}); + $lasttag=undef; + } + elsif($self->tag_has_values($constraint->{id})) + { +# print "HASVALUES\n"; + $lasttag=$constraint->{id} if defined($constraint->{id}); + } + else + { +# print "NOVALUES\n"; + push(@tags, $constraint->{id}) if(defined($constraint->{id})); + } + } + } + unless($self->{postgres}) + { + @tags=map{ "\"$_\""; } @tags; + @tags_vals=map( { [ map({ "\"$_\""; } @$_ ) ] } @tags_vals); + $lasttag="\"$lasttag\"" if defined($lasttag); + } + return(\@tags, \@tags_vals, $lasttag); +} + + +sub relativise +{ + my($self, $path, $name, $mountpoint, $id3fs_path)=@_; + $id3fs_path=~s/(.*)\/.*/$1/; + my $rpath="$self->{absbase}/$path"; + my $vpath="$mountpoint/$id3fs_path"; + my @path=split(/\//,$rpath); + my @rel=split(/\//,$vpath); + #absolute paths have empty first element due to leading / + shift(@path) if($path[0] eq ""); + shift(@rel) if($rel[0] eq ""); + if($path[0] ne $rel[0]) + { + #no path in common, return absolute + print "FAIL: NO PATHS IN COMMON\n"; + return $name; + } + # f: /home/foo/bar/baz.mp3 + # r: /home/ianb/music/albums + while(@path && @rel && ($path[0] eq $rel[0])) + { + shift(@path); + shift(@rel); +# print "POP "; + } +# print "\n"; + my $upcount=scalar(@rel); + my $result="../" x $upcount; + $result .= join("/",@path); + $result .= "/$name"; + return $result; +} + +sub bare_tags +{ + my($self)=@_; + my $sql=("SELECT tags.name FROM tags\n" . + "WHERE tags.parents_id=''\n" . + "GROUP BY tags.name\n"); + my $result=$self->cmd_rows($sql); + my @names=map { $_->[0]; } @$result; + return (@names); +} + +sub tags_with_values +{ + # FIXME: only shows one level of tag depth + my($self)=@_; + my $sql=("SELECT p.name, t.name FROM tags t\n" . + "INNER JOIN tags p ON t.parents_id=p.id\n" . + "GROUP BY p.name, t.name\n"); + print "SQL: $sql\n"; + my $result=$self->cmd_rows($sql); + my $tags={}; + for my $pair (@$result) + { + push(@{$tags->{$pair->[0]}}, $pair->[1]); + } + return $tags; +} + sub id { my($self, $type, $val)=@_; @@ -373,7 +615,7 @@ sub add my $relpath=$path; $relpath =~ s/^\Q$self->{base}\E\/?//; my($filepart,$pathpart); - if($path !~ /\//) + if($relpath !~ /\//) { $pathpart=''; $filepart=$relpath; @@ -382,28 +624,34 @@ sub add { ($pathpart, $filepart) = ($relpath =~ /(.*)\/(.*)/); } - my $file=ID3FS::AudioFile->new($path); + my $file=ID3FS::AudioFile->new($path, $self->{me}); return unless(defined($file)); my $artist=$file->artist(); my $album=$file->album(); my $v1genre=$file->v1genre(); my $year=$file->year(); my $audiotype=$file->audiotype(); - my $tags=$file->tags(); + my @tags=$file->tags(); my $haspic=$file->haspic(); $artist=undef unless($self->ok($artist)); + print "$self->{me}: $path: no artist tag defined\n" unless(defined($artist)); my $artist_id=$self->add_to_table("artists", $artist); my $path_id=$self->add_to_table("paths", $pathpart); $album=undef unless($self->ok($album)); + if($self->{verbose} && !defined($album)) + { + print "$self->{me}: $path: no album tag defined\n"; + } + my $albums_id=$self->add_to_table("albums", $album); my $file_id=$self->add_to_table("files", $filepart, { "artists_id" => $artist_id, "albums_id" => $albums_id, "paths_id" => $path_id }); - for my $tag (keys %$tags) + for my $tag (@tags) { - $self->add_tag($file_id, $tag, $tags->{$tag}); + $self->add_tag($file_id, @$tag); } if($self->ok($year)) @@ -428,17 +676,19 @@ sub add sub add_tag { - my($self, $file_id, $tag, $val)=@_; - my $tag_id=$self->add_to_table("tags", $tag); + my($self, $file_id, $tag, $value)=@_; + my $tag_id=$self->add_to_table("tags", $tag, + { "parents_id" => undef }); $self->add_relation("files_x_tags", { "files_id" => $file_id, "tags_id" => $tag_id }); - if(defined($val)) + if(defined($value) && length($value)) { - my $val_id=$self->add_to_table("tagvals", $val); - $self->add_relation("tags_x_tagvals", - { "tags_id" => $tag_id, - "tagvals_id" => $val_id }); + my $val_id=$self->add_to_table("tags", $value, + { "parents_id" => $tag_id }); + $self->add_relation("files_x_tags", + { "files_id" => $file_id, + "tags_id" => $val_id }); } } @@ -488,13 +738,87 @@ sub tag_has_values { my($self, $id)=@_; my $sql=("SELECT COUNT(*) FROM tags\n\t" . - "INNER JOIN tags_x_tagvals ON tags.id=tags_x_tagvals.tags_id\n\t" . - "INNER JOIN tagvals ON tagvals.id=tags_x_tagvals.tagvals_id\n\t" . - "WHERE tags.id=?\n"); + "WHERE tags.parents_id=?\n"); my ($rows)=$self->cmd_onerow($sql, $id); return $rows; } +sub files_in +{ + my ($self, $dir)=@_; + $dir=~s/^$self->{base}\/?//; + my $sql=("SELECT files.name FROM files\n" . + "INNER JOIN paths ON files.paths_id=paths.id\n" . + "WHERE paths.name=?\n"); + my $files=$self->cmd_rows($sql, $dir); + return(map { $_->[0]; } @$files); +} + +sub prune_directories +{ + my($self)=@_; + my $sql=("SELECT name, id FROM paths ORDER BY name\n"); + my $pathsref=$self->cmd_rows($sql); + my @ids=(); + for my $pathpair (@$pathsref) + { + my($path, $id)=@$pathpair; + my $fullpath="$self->{absbase}/$path"; + unless(-d $fullpath) + { + push(@ids, $id) + } + } + $self->prune_paths(@ids); + return scalar(@ids); +} + +sub prune_paths +{ + my($self, @ids)=@_; + return unless(@ids); + my $sql=("DELETE FROM files WHERE paths_id IN (\n\t" . + join(', ', map { "\"$_\""; } @ids). "\n\t)"); + print "SQL: \n", $sql, "\n"; + $self->cmd($sql); +} + +sub remove_unused +{ + my($self)=@_; + my $sql=<<'EOT'; + DELETE FROM artists WHERE id IN ( + SELECT artists.id FROM artists + LEFT JOIN files ON files.artists_id=artists.id + WHERE files.id IS NULL); + + DELETE FROM albums WHERE id IN ( + SELECT albums.id FROM albums + LEFT JOIN files ON files.albums_id=albums.id + WHERE files.id IS NULL); + + DELETE FROM paths WHERE id IN ( + SELECT paths.id FROM paths + LEFT JOIN files ON files.paths_id=paths.id + WHERE files.id IS NULL); + + DELETE FROM files_x_tags WHERE files_id IN ( + SELECT files_x_tags.files_id FROM files_x_tags + LEFT JOIN files ON files.id=files_x_tags.files_id + WHERE files.id IS NULL); + + DELETE FROM tags WHERE id IN ( + SELECT tags.id FROM tags + LEFT JOIN files_x_tags ON files_x_tags.tags_id=tags.id + WHERE files_x_tags.files_id IS NULL); + + VACUUM +EOT + print "SQL: $sql\n"; + my @sql=split(/\n\n/, $sql); + $self->cmd($_) for (@sql); +} + sub relation_exists { my ($self, $relname, $fields)=@_; @@ -583,35 +907,25 @@ CREATE TABLE albums ( CREATE TABLE files ( id INTEGER PRIMARY KEY, + name text, artists_id, albums_id, paths_id, - name text, - FOREIGN KEY(artists_id) REFERENCES artists(id), - FOREIGN KEY(albums_id) REFERENCES albums(id), - FOREIGN KEY(paths_id) REFERENCES paths(id) + FOREIGN KEY(artists_id) REFERENCES artists(id) ON DELETE CASCADE ON UPDATE CASCADE, + FOREIGN KEY(albums_id) REFERENCES albums(id) ON DELETE CASCADE ON UPDATE CASCADE, + FOREIGN KEY(paths_id) REFERENCES paths(id) ON DELETE CASCADE ON UPDATE CASCADE ); CREATE TABLE tags ( id INTEGER PRIMARY KEY, - name text -); - -CREATE TABLE tagvals ( - id INTEGER PRIMARY KEY, + parents_id INTEGER, name text ); CREATE TABLE files_x_tags ( files_id INTEGER, tags_id INTEGER, - FOREIGN KEY(files_id) REFERENCES files(id), - FOREIGN KEY(tags_id) REFERENCES tags(id) + FOREIGN KEY(files_id) REFERENCES files(id) ON DELETE CASCADE ON UPDATE CASCADE, + FOREIGN KEY(tags_id) REFERENCES tags(id) ON DELETE CASCADE ON UPDATE CASCADE ); -CREATE TABLE tags_x_tagvals ( - tags_id INTEGER, - tagvals_id INTEGER, - FOREIGN KEY(tags_id) REFERENCES tags(id), - FOREIGN KEY(tagvals_id) REFERENCES tagvals(id) -);