our %priorities=( "OR" => 0, "AND" => 1, "NOT" => 2 );
+our $PATH_ALLTRACKS="TRACKS";
+our $PATH_NOARTIST="NOARTIST";
+our $PATH_NOALBUM="NOALBUM";
+
sub new
{
my $proto=shift;
$self->{elements}=[];
$self->{db}=shift;
$self->{path}=shift;
+ $self->{path} =~ s/\/\//\//g; # drop doubled slashes
+
$self->parse();
# print "STATE: ", $self->state(), "\n";
return $self;
{
my($self)=@_;
my @dents=();
+ my @fents=();
my $state=$self->state();
# print "DIRENTS: STATE: $state\n";
# print "DIRENTS: FILE: $self->{path}\n";
if($state==$STATE_ALL)
{
- push(@dents, qw(TRACKS NOARTIST), $self->artists());
+ push(@dents, $PATH_ALLTRACKS, $PATH_NOARTIST, $self->artists());
}
elsif($state==$STATE_TAG || $state==$STATE_TAGVAL)
{
}
else
{
- push(@dents, qw(AND OR TRACKS NOARTIST), $self->artists());
+ push(@dents, qw(AND OR), $PATH_ALLTRACKS, $PATH_NOARTIST, $self->artists());
}
}
elsif($state==$STATE_BOOLEAN)
}
elsif($state==$STATE_ALBUMS)
{
- @dents=(qw(TRACKS NOALBUM),$self->albums());
+ @dents=($PATH_ALLTRACKS, $PATH_NOALBUM, $self->albums());
}
elsif($state==$STATE_TRACKLIST)
{
- @dents=$self->tracks();
+ @fents=$self->tracks();
}
else
{
print "DIRENTS: UNHANDLED STATE: $state\n";
}
- return(@dents);
+ return(\@dents, \@fents);
}
sub parse
my @parts=@{$self->{components}};
my($tag, $tagval);
$self->{elements}=[];
+ $self->{bare_not}=0;
+ $self->{in_all}=0;
+ my $root_not=0;
+ my $tags_seen=0;
while(defined(my $name=shift @parts))
{
# print "NAME: $name\n";
# print "SM: ROOT: $name\n";
if($name eq "ALL")
{
+ $self->{in_all}=1;
$self->state($STATE_ALL);
}
elsif($name eq "NOT")
{
+ $root_not=1;
push(@{$self->{elements}}, ID3FS::PathElement::Boolean->new($self->{db}, $name));
$self->state($STATE_BOOLEAN);
}
if($tag)
{
push(@{$self->{elements}}, $tag);
+ $tags_seen++;
$self->state($STATE_TAG);
}
else
$self->state($STATE_INVALID);
}
}
- elsif($name eq "TRACKS")
+ elsif($name eq $PATH_ALLTRACKS)
{
$self->state($STATE_TRACKLIST);
}
- elsif($name eq "NOARTIST")
+ elsif($name eq $PATH_NOARTIST)
{
$self->state($STATE_TRACKLIST);
}
if($tag)
{
push(@{$self->{elements}}, $tag);
+ $tags_seen++;
$self->state($STATE_TAG);
}
else
elsif($state==$STATE_ALBUMS)
{
# print "SM: ALBUM: $name\n";
- if($name eq "TRACKS")
+ if($name eq $PATH_ALLTRACKS)
{
$self->state($STATE_TRACKLIST);
}
- elsif($name eq "NOALBUM")
+ elsif($name eq $PATH_NOALBUM)
{
$self->state($STATE_TRACKLIST);
}
}
elsif($state==$STATE_ALL)
{
- if($name eq "TRACKS")
+ if($name eq $PATH_ALLTRACKS)
{
$self->state($STATE_TRACKLIST);
}
- elsif($name eq "NOARTIST")
+ elsif($name eq $PATH_NOARTIST)
{
+ # FIXME
$self->state($STATE_TRACKLIST);
}
else
$self->state($STATE_INVALID);
}
}
+
+ if($root_not && ($tags_seen < 2))
+ {
+ $self->{bare_not}=1;
+ }
+
# remove trailing boolean
my @elements=@{$self->{elements}};
while(@elements && ref($elements[$#elements]) eq "ID3FS::PathElement::Boolean")
sub tags
{
my($self)=@_;
- if(!$self->{tagtree}) # / or /NOT
+ if(!$self->{tagtree}) # / or /NOT # FIXME: /ALL too?
{
my $sql="SELECT DISTINCT name FROM tags WHERE parents_id='';";
return($self->{db}->cmd_firstcol($sql));
$sql .= "WHERE " . join(' AND ', @andclauses) . "\n";
}
$sql .= "GROUP BY tags.name;";
- print "SQL(TAGS): $sql\n";
+# print "SQL(TAGS): $sql\n";
my @tagnames=$self->{db}->cmd_firstcol($sql);
- print "SUBNAMES: ", join(', ', @tagnames), "\n";
+# print "SUBNAMES: ", join(', ', @tagnames), "\n";
return(@tagnames);
}
"INNER JOIN artists ON files.artists_id=artists.id\n" .
"WHERE artists.name != ''\n" .
"GROUP BY artists.name;");
- print "SQL(ARTISTS): $sql\n";
+# print "SQL(ARTISTS): $sql\n";
my @tagnames=$self->{db}->cmd_firstcol($sql);
print "ARTISTS: ", join(', ', @tagnames), "\n";
return(@tagnames);
{
return $self->artist_albums($tail->{id});
}
- my $sql=("SELECT albums.name\n" .
- "\tFROM (\n" .
- $self->tags_subselect() .
- "\t) AS subselect\n" .
- "INNER JOIN files ON subselect.files_id=files.id\n" .
- "INNER JOIN albums ON files.albums_id=albums.id\n" .
- "WHERE albums.name != ''\n" .
- "GROUP BY albums.name;");
- print "SQL(ALBUMS): \n$sql\n";
+ my $sql;
+ if($self->{in_all})
+ {
+ $sql="SELECT name FROM albums";
+ }
+ else
+ {
+ $sql=("SELECT albums.name\n" .
+ "\tFROM (\n" .
+ $self->tags_subselect() .
+ "\t) AS subselect\n" .
+ "INNER JOIN files ON subselect.files_id=files.id\n" .
+ "INNER JOIN albums ON files.albums_id=albums.id\n" .
+ "WHERE albums.name != ''\n" .
+ "GROUP BY albums.name;");
+ }
+# print "SQL(ALBUMS): \n$sql\n";
my @names=$self->{db}->cmd_firstcol($sql);
print "ALBUMS: ", join(', ', @names), "\n";
return(@names);
sub artist_albums
{
my($self, $artist_id)=@_;
- my $sql=("SELECT albums.name FROM (\n" .
- $self->tags_subselect() .
- "\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" .
+ my $sql="SELECT albums.name FROM ";
+ if($self->{in_all})
+ {
+ $sql .= "files\n";
+ }
+ else
+ {
+ $sql .= ("(\n" .
+ $self->tags_subselect() .
+ ") AS subselect\n" .
+ "INNER JOIN files ON subselect.files_id=files.id\n");
+ }
+ $sql .= ("INNER JOIN albums ON albums.id=files.albums_id\n" .
+ "INNER JOIN artists ON artists.id=files.artists_id\n" .
+ "WHERE artists.id=? and albums.name <> ''\n" .
"GROUP BY albums.name\n");
- print "ARTIST_ALBUMS SQL: $sql\n";
+# print "ARTIST_ALBUMS SQL: $sql\n";
my @albums=$self->{db}->cmd_firstcol($sql, $artist_id);
print "ALBUMS: ", join(', ', @albums), "\n";
return(@albums);
sub artist_tracks
{
my($self, $artist_id)=@_;
- my $sql=("SELECT files.name FROM (\n" .
- $self->tags_subselect() .
- "\t) AS subselect\n" .
- "INNER JOIN files ON subselect.files_id=files.id\n" .
- "INNER JOIN artists ON artists.id=files.artists_id\n" .
+ my $sql="SELECT files.name FROM ";
+ if($self->{in_all})
+ {
+ $sql .= "files\n";
+ }
+ else
+ {
+ $sql .= ("(\n" .
+ $self->tags_subselect() .
+ "\t) AS subselect\n" .
+ "INNER JOIN files ON subselect.files_id=files.id\n");
+ }
+ $sql .= ("INNER JOIN artists ON artists.id=files.artists_id\n" .
"INNER JOIN albums ON albums.id=files.albums_id\n" .
"WHERE artists.id=? AND albums.name=''\n" .
"GROUP BY files.name\n");
- print "ARTIST_TRACKS SQL: $sql\n";
+# print "ARTIST_TRACKS SQL: $sql\n";
my @names=$self->{db}->cmd_firstcol($sql, $artist_id);
print "ARTISTTRACKS: ", join(', ', @names), "\n";
return(@names);
sub album_tracks
{
my($self, $artist_id, $album_id)=@_;
- my $sql=("SELECT files.name FROM files\n\t" .
- "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.id=?\n\t" .
+ my $sql=("SELECT files.name FROM files\n" .
+ "INNER JOIN albums ON albums.id=files.albums_id\n" .
+ "INNER JOIN artists ON artists.id=files.artists_id\n" .
+ "WHERE artists.id=? AND albums.id=?\n" .
"GROUP BY files.name\n");
- print "ALBUM_TRACKS SQL($artist_id, $album_id): $sql\n";
+# print "ALBUM_TRACKS SQL($artist_id, $album_id): $sql\n";
my @names=$self->{db}->cmd_firstcol($sql, $artist_id, $album_id);
print "TRACKS: ", join(', ', @names), "\n";
return(@names);
}
return $self->album_tracks($artist_id, $tail->{id});
}
- my $sql=("SELECT files.name\n" .
- "\tFROM (\n" .
- $self->tags_subselect() .
- "\t) AS subselect\n" .
- "INNER JOIN files ON files.id=subselect.files_id\n" .
- "INNER JOIN artists ON files.artists_id=artists.id\n");
- if($self->{components}->[$#{$self->{components}}] eq "NOARTIST")
+ my $sql="SELECT files.name FROM ";
+ if($self->{in_all})
+ {
+ $sql .= "files\n";
+ }
+ else
+ {
+ $sql .= ("(\n" .
+ $self->tags_subselect() .
+ ") AS subselect\n" .
+ "INNER JOIN files ON files.id=subselect.files_id\n");
+ }
+ $sql .= "INNER JOIN artists ON files.artists_id=artists.id\n";
+ if($self->{components}->[$#{$self->{components}}] eq $PATH_NOARTIST)
{
$sql .= "WHERE artists.name =''\n";
}
$sql .= "GROUP BY files.name;";
- print "TRACKS SQL: $sql\n";
+# print "TRACKS SQL($self->{path}): $sql\n";
my @names=$self->{db}->cmd_firstcol($sql);
print "TRACKS: ", join(', ', @names), "\n";
return(@names);
"INNER JOIN paths ON files.paths_id=paths.id\n" .
"WHERE files.id=?\n" .
"GROUP BY paths.name, files.name");
- print "FILENAME SQL: $sql\n";
+# print "FILENAME SQL: $sql\n";
my ($path, $name)=$self->{db}->cmd_onerow($sql, $id);
my $id3fs_path=join('/', map { $_->{name}; } @{$self->{elements}});
return($self->{db}->relativise($path, $name, $mountpoint, $id3fs_path));
sub tags_subselect
{
my($self)=@_;
- my $tree=$self->{tagtree};
my $hasvals=$self->tag_has_values();
+ # we need to specially handle a bare /NOT/tag with no other clauses,
+ # using a simple WHERE id !='tagid' instead of a LEFT JOIN
+ if($self->{bare_not})
+ {
+ return $self->bare_not_subselect();
+ }
+ if($self->{in_all})
+ {
+ return "\tSELECT id FROM files AS files_id\n";
+ }
+ my $tree=$self->{tagtree};
my $parent=$self->trailing_tag_parent();
# print "ELEMENTS: ", join('/', map { $_->{name}; } @{$self->{elements}}), "\n";
# print "Trailing id: $tag\n";
}
my ($sqlclause, @joins)=(undef, ());
- ($sqlclause, @joins) = $tree->to_sql() if($tree);
+ ($sqlclause, @joins) = $tree->to_sql($hasvals) if($tree);
# print "SQL(" . scalar(@joins) .": $sqlclause\n";
my $sql="\tSELECT fxt1.files_id FROM tags t1";
my @crosses=();
return $sql;
}
+sub bare_not_subselect
+{
+ my($self)=@_;
+ my @tags=grep { ref($_) eq "ID3FS::PathElement::Tag"; } @{$self->{elements}};
+ my $sql=("\tSELECT f1.id AS files_id FROM files f1 WHERE f1.id NOT IN (\n" .
+ "\t\tSELECT fxt1.files_id FROM tags t1\n" .
+ "\t\tINNER JOIN files_x_tags fxt1 ON t1.id=fxt1.tags_id\n" .
+ "\t\tWHERE ");
+ if(scalar(@tags) > 1)
+ {
+ $sql .= ("(t1.parents_id='" . $tags[0]->{id} . "' AND t1.id='" .
+ $tags[1]->{id} . "')");
+ }
+ else
+ {
+ $sql .= ("(t1.parents_id='' AND t1.id='" . $tags[0]->{id} . "')");
+ }
+ $sql .= "\n\t\tGROUP BY fxt1.files_id\n\t)\n";
+ return($sql);
+}
+
sub tags_subselect_and_not
{
my($self,@constraints)=@_;
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";
+# print "SQL: $sql\n";
my $result=$self->{db}->cmd_rows($sql);
my $tags={};
for my $pair (@$result)
return $tags;
}
+
+sub filter
+{
+ my($self, @dirs)=@_;
+ my $base=$self->{path};
+ my @outdirs=();
+ # depth 4 to allow for tag/tagval/AND/NOT
+ my $maxdepth=4;
+ for my $dir (@dirs)
+ {
+# print "FILTER (",$self->state(), "): $base / $dir\n";
+ if($self->empty("$base/$dir", $maxdepth))
+ {
+# print "empty: $base / $dir\n";
+ }
+ else
+ {
+# print "accepting: $base / $dir\n";
+ push(@outdirs, $dir);
+ }
+ }
+ return(@outdirs);
+}
+
+sub empty
+{
+ my($self, $dir, $maxdepth)=@_;
+ return 1 unless($maxdepth);
+# print "testing($maxdepth): $dir\n";
+ my $path=ID3FS::Path->new($self->{db}, $dir);
+# print "PATH INVALID\n" unless($path->isvalid());
+ return 1 unless($path->isvalid());
+ my($subdirs,$subfiles)=$path->dirents();
+# print "SUBDENTS: ", join(", ", @$subdirs, @$subfiles), "\n";
+# print("SUBFILES: ", join(', ', @$subfiles), "\n") if(@$subfiles);
+ return 0 if(@$subfiles);
+ for my $subdir (@$subdirs)
+ {
+# print "SUBSUB $dir/$subdir\n";
+ if(1) #$self->dir_is_special($subdir))
+ {
+ if($self->empty("$dir/$subdir", ($maxdepth-1)))
+ {
+# print "EMPTY: $dir / $subdir\n";
+ }
+ else
+ {
+# print "NONEMPTY: $dir / $subdir\n";
+ return 0;
+ }
+ }
+ else
+ {
+ return 0;
+ }
+# return 0 if($self->nonempty("$dir/$subdir", ($maxdepth-1)));
+ }
+ return 1;
+}
+
+sub tagname_has_values
+{
+ my($self, $name)=@_;
+ my $id=$self->{db}->lookup_id("tags", $name);
+ return 0 unless($id);
+ return $self->{db}->tag_has_values($id);
+
+}
+
+sub dir_is_special
+{
+ my($self, $dir)=@_;
+ if((grep { $_ eq $dir; }
+ qw(AND OR NOT), $PATH_ALLTRACKS, $PATH_NOARTIST, $PATH_NOALBUM) ||
+ ($self->tagname_has_values($dir)))
+ {
+ return 1;
+ }
+ return 0;
+}
+
1;
projects / id3fs.git / blobdiff