X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2FID3FS%2FDB.pm;h=d598fe7da25ce48c6066f3d636ab7b872846e275;hb=c8a6e9955036a909c0cec1a4e51fc61c84a004d4;hp=86291cff7f2dc2de2098613373b27f52e379408b;hpb=ddb9cbe0dda25dce5fbbd30738e80807d1bd3da1;p=id3fs.git

diff --git a/lib/ID3FS/DB.pm b/lib/ID3FS/DB.pm
index 86291cf..d598fe7 100644
--- a/lib/ID3FS/DB.pm
+++ b/lib/ID3FS/DB.pm
@@ -164,460 +164,23 @@ sub last_update
     return $newval;
 }
 
-sub cmd_sth
-{
-    my($self, $sql, @params)=@_;
-    my $sth=$self->{dbh}->prepare($sql);
-    my $idx=1;
-    for my $param (@params)
-    {
-	$param="" unless(defined($param));
-	$sth->bind_param($idx++, $param);
-    }
-    $sth->execute();
-    return $sth;
-}
-
-sub tags
-{
-    my($self, $path)=@_;
-    my @constraints=@{$path->{elements}};
-    if(!@constraints) # /
-    {
-	my $sql="SELECT DISTINCT name FROM tags WHERE parents_id='';";
-	my $tags=$self->cmd_rows($sql);
-	return(map { $_->[0]; } @$tags);
-    }
-    my $hasvals=$path->tag_has_values();
-    my $parent=$path->trailing_tag_parent();
-    print "THASVALS: $hasvals\n";
-    print "TPARENT: ", (defined($parent)? $parent : "NO"), "\n";
-    my @ids=();
-    my $sql=("SELECT tags.name FROM (\n" .
-	     $self->tags_subselect($path) .
-	     ") AS subselect\n" .
-	     "INNER JOIN files_x_tags ON subselect.files_id=files_x_tags.files_id\n" .
-	     "INNER JOIN tags ON files_x_tags.tags_id=tags.id\n");
-    my (@allused)=$path->used_tags();
-    my @used=grep { ref($_) ne "ARRAY"; } @allused;
-    my @used_with_vals=grep { ref($_) eq "ARRAY"; } @allused;
-    print "tags(): USED: ", join(", ", @used), "\n";
-    print "tags(): USED_WITH_VALS: ", join(", ", map { "[".$_->[0]. ", ".$_->[1]."]";} @used_with_vals), "\n";
-    my @orclauses=();
-    my @andclauses=();
-    my $id=$path->trailing_tag_id();
-    if($hasvals)
-    {
-	print "HAS_VALUES\n";
-	my @values=map { "'".$_->[1]."'"; } grep { $_->[0] == $id; } @used_with_vals;
-	my $clause="(tags.parents_id='$id'";
-	if(@values)
-	{
-	    $clause .= " AND tags.id NOT IN (" . join(', ', @values) . ")";
-	}
-	$clause .= ")";
-	push(@orclauses, $clause);
-    }
-    else
-    {
-	print "HASNT VALUES\n";;
-	if(@used)
-	{
-	    push(@orclauses, "(NOT (tags.parents_id='' AND tags.id IN (" . join(', ', @used) . ")))");
-	}
-	for my $pair (@used_with_vals)
-	{
-	    push(@orclauses, "(NOT (tags.parents_id='" . $pair->[0] . "' AND tags.id='" . $pair->[1] . "'))");
-	}
-    }
-
-    my $parentclause= "(tags.parents_id='";
-    if($hasvals)
-    {
-	$parentclause .= $id;
-    }
-    elsif($parent)
-    {
-	$parentclause .= $parent;
-    }
-    $parentclause .= "')";
-    push(@andclauses, $parentclause);
-
-    if(@orclauses)
-    {
-	push(@andclauses, join(' OR ', @orclauses));
-    }
-    if(@andclauses)
-    {
-	$sql .= "WHERE " . join(' AND ', @andclauses) . "\n";
-    }
-    $sql .= "GROUP BY tags.name;";
-    print "SQL: $sql\n";
-    my $result=$self->cmd_rows($sql);
-    my @tagnames=map { $_->[0]; } @$result;
-    print "SUBNAMES: ", join(', ', @tagnames), "\n";
-    return(@tagnames);
-}
-
-sub tag_values
-{
-    my($self, $tagid)=@_;
-    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($_) ? $_ : "NOVALUE"; } @tags;
-    return @tags;
-}
-
-sub artists
-{
-    my($self, $path)=@_;
-    my @constraints=@{$path->{elements}};
-    if(!@constraints) # /ALL
-    {
-	my $sql="SELECT DISTINCT name FROM artists;";
-	my $tags=$self->cmd_rows($sql);
-	return(map { $_->[0]; } @$tags);
-    }
-    my @ids=();
-    my $sql=("SELECT artists.name FROM (\n" .
-	     $self->tags_subselect($path) .
-	     ") 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;
-    print "ARTISTS: ", join(', ', @tagnames), "\n";
-    return(@tagnames);
-}
-
-sub albums
-{
-    my($self, $path)=@_;
-    my @constraints=@{$path->{elements}};
-    my @ids=();
-    # FIXME: rework PathElements
-    if(ref($constraints[$#constraints]) eq "ID3FS::PathElement::Artist")
-    {
-	return $self->artist_albums($constraints[$#constraints]->{id}, $path);
-    }
-    my $sql=("SELECT albums.name\n" .
-	     "\tFROM (\n" .
-	     $self->tags_subselect($path) .
-	     "\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";
-    return(@names);
-}
-
-sub artist_albums
-{
-    my($self, $artist_id, $path)=@_;
-    my @constraints=@{$path->{elements}};
-    my $sql=("SELECT albums.name FROM (\n" .
-	     $self->tags_subselect($path) .
-	     "\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" .
-	     "GROUP BY albums.name\n");
-    print "ARTIST_ALBUMS SQL: $sql\n";
-    my $result=$self->cmd_rows($sql, $artist_id);
-    my @albums=map { $_->[0]; } @$result;
-    print "ALBUMS: ", join(', ', @albums), "\n";
-    return(@albums);
-}
-
-sub artist_tracks
-{
-    my($self, $artist_id, $path)=@_;
-    my $sql=("SELECT files.name FROM (\n" .
-	     $self->tags_subselect($path) .
-	     "\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" .
-	     "GROUP BY files.name\n");
-    print "ARTIST_TRACKS SQL: $sql\n";
-    my $result=$self->cmd_rows($sql, $artist_id);
-    my @names=map { $_->[0]; } @$result;
-    print "ARTISTTRACKS: ", join(', ', @names), "\n";
-    return(@names);
-}
-
-sub album_tracks
-{
-    my($self, $artist_id, $album_id)=@_;
-    my $sql=("SELECT files.name FROM files\n\t" .
-	     "INNER JOIN albums  ON albums.id=files.albums_id\n\t" .
-	     "INNER JOIN artists ON artists.id=files.artists_id\n\t" .
-	     "WHERE artists.id=? AND albums.id=?\n\t" .
-	     "GROUP BY files.name\n");
-    print "ALBUM_TRACKS SQL($artist_id, $album_id): $sql\n";
-    my $result=$self->cmd_rows($sql, $artist_id, $album_id);
-    my @names=map { $_->[0]; } @$result;
-    print "TRACKS: ", join(', ', @names), "\n";
-    return(@names);
-}
-
-sub tracks
-{
-    my($self, $path)=@_;
-    my @constraints=@{$path->{elements}};
-    # FIXME: rework PathElements
-    if(ref($constraints[$#constraints]) eq "ID3FS::PathElement::Artist")
-    {
-	my $artist_id=0;
-	my $artist=$constraints[$#constraints];
-	if(defined($artist) && (ref($artist) eq "ID3FS::PathElement::Artist"))
-	{
-	    # should always happen
-	    $artist_id=$artist->{id};
-	}
-	return $self->artist_tracks($artist_id, $path);
-    }
-    elsif(ref($constraints[$#constraints]) eq "ID3FS::PathElement::Album")
-    {
-	my $artist_id=0;
-	my $artist=$constraints[($#constraints)-1];
-	if(defined($artist) && (ref($artist) eq "ID3FS::PathElement::Artist"))
-	{
-	    # should always happen
-	    $artist_id=$artist->{id};
-	}
-	return $self->album_tracks($artist_id, $constraints[$#constraints]->{id});
-    }
-
-    my $sql=("SELECT files.name\n" .
-	     "\tFROM (\n" .
-	     $self->tags_subselect($path) .
-	     "\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;
-    print "TRACKS: ", join(', ', @names), "\n";
-    return(@names);
-}
-
-sub filename
-{
-    my($self, $mountpoint, $path)=@_;
-    my @constraints=@{$path->{elements}};
-    if(ref($constraints[$#constraints]) eq "ID3FS::PathElement::File")
-    {
-	my $id=$constraints[$#constraints]->{id};
-	my $sql=("SELECT paths.name, files.name FROM files\n" .
-		 "INNER JOIN paths ON files.paths_id=paths.id\n" .
-		 "WHERE files.id=?\n" .
-		 "GROUP BY paths.name, files.name");
-	print "FILENAME SQL: $sql\n";
-	my ($path, $name)=$self->cmd_onerow($sql, $id);
-	my $id3fs_path=join('/', map { $_->{name}; }  @constraints);
-	return($self->relativise($path, $name, $mountpoint, $id3fs_path));
-    }
-    die("DB::filename: unhandled case\n"); #FIXME
-}
-
-sub tags_subselect
-{
-    my($self, $path)=@_;
-    my $tree=$path->{tagtree};
-    my $hasvals=$path->tag_has_values();
-    my $parent=$path->trailing_tag_parent();
-
-    my $tag=undef;
-    if($hasvals)
-    {
-	$tag=$path->trailing_tag_id();
-	print "Trailing id: $tag\n";
-    }
-    my ($sqlclause, $joinsneeded)=(undef, 1);
-    ($sqlclause, $joinsneeded) = $tree->to_sql($tag) if($tree);
-    print "SQL($joinsneeded): $sqlclause\n";
-    my $sql="\tSELECT fxt1.files_id FROM tags t1";
-    my @crosses=();
-    my @inners=();
-#    $joinsneeded++ if($tag);
-    for(my $i=1; $i <= $joinsneeded; $i++)
-    {
-	if($i > 1)
-	{
-	    push(@crosses, "CROSS JOIN tags t$i");
-	}
-	my $inner=("\tINNER JOIN files_x_tags fxt$i ON " .
-		   "t${i}.id=fxt${i}.tags_id");
-	if($i>2)
-	{
-	    $inner .= " AND fxt1.files_id=fxt${i}.files_id";
-	}
-	push(@inners, $inner);
-    }
-    $sql .= ("\n\t" . join(" ", @crosses)) if(@crosses);
-    $sql .= ("\n" . join("\n", @inners)) if(@inners);
-    $sql .= "\n\tWHERE $sqlclause" if($sqlclause);
-#    if($tag)
-#    {
-#	$sql .= " AND t${joinsneeded}.parents_id='$tag'";
-#    }
-    $sql .= "\n\tGROUP BY fxt1.files_id\n";
-    return $sql;
-}
-
-sub tags_subselect_and_not
-{
-    my($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 $sql;
-}
-
-sub tags_subselect_or
+sub id
 {
-    my($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 $sql;
+    my($self, $type, $val)=@_;
+    my $sql="SELECT id FROM $type WHERE name=?";
+    my ($id)=$self->cmd_onerow($sql, $val);
+    return($id);
 }
 
-sub constraints_tag_list
+sub tag_has_values
 {
-    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, $lasttag);
+    my($self, $id)=@_;
+    my $sql=("SELECT COUNT(*) FROM tags\n\t" .
+	     "WHERE tags.parents_id=?\n");
+    my ($rows)=$self->cmd_onerow($sql, $id);
+    return $rows;
 }
 
-
 sub relativise
 {
     my($self, $path, $name, $mountpoint, $id3fs_path)=@_;
@@ -651,42 +214,6 @@ sub relativise
     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)=@_;
-    my $sql="SELECT id FROM $type WHERE name=?";
-    my ($id)=$self->cmd_onerow($sql, $val);
-    return($id);
-}
-
 sub add
 {
     my($self,$path)=@_;
@@ -805,22 +332,6 @@ sub add_relation
     $self->cmd($sql, map { $fields->{$_}; } sort keys(%$fields));
 }
 
-sub lookup_id
-{
-    my($self, $table, $name)=@_;
-    my($id)=$self->cmd_onerow("SELECT id FROM $table where name=?", $name);
-    return $id;
-}
-
-sub tag_has_values
-{
-    my($self, $id)=@_;
-    my $sql=("SELECT COUNT(*) FROM tags\n\t" .
-	     "WHERE tags.parents_id=?\n");
-    my ($rows)=$self->cmd_onerow($sql, $id);
-    return $rows;
-}
-
 sub files_in
 {
     my ($self, $dir)=@_;
@@ -919,6 +430,20 @@ sub ok
     return(defined($thing) && length($thing) && $thing =~ /\S+/);
 }
 
+sub cmd_sth
+{
+    my($self, $sql, @params)=@_;
+    my $sth=$self->{dbh}->prepare($sql);
+    my $idx=1;
+    for my $param (@params)
+    {
+	$param="" unless(defined($param));
+	$sth->bind_param($idx++, $param);
+    }
+    $sth->execute();
+    return $sth;
+}
+
 sub cmd
 {
     my ($self, @args)=@_;
@@ -940,6 +465,12 @@ sub cmd_rows
     return $sth->fetchall_arrayref();
 }
 
+sub cmd_firstcol
+{
+    my ($self, @args)=@_;
+    return(map { $_->[0] } @{$self->cmd_rows(@args)});
+}
+
 sub cmd_id
 {
     my ($self, @args)=@_;