- 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, @constraints)=@_;
- if(!@constraints) # /
- {
- # FIXME: add ALL?
- my $sql="SELECT DISTINCT name FROM tags;";
- 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)
- {
- print "CONSTRAINT: $constraint->{name}\n";
- 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);
- 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, $tag)=@_;
- my $sql=("SELECT DISTINCT tagvals.name FROM tags\n" .
- "INNER JOIN tags_x_tagvals ON tags.id=tags_x_tagvals.tags_id\n" .
- "INNER JOIN tagvals ON tagvals.id=tags_x_tagvals.tagvals_id\n" .
- "WHERE tags.name=?");
- my $tags=$self->cmd_rows($sql, $tag);
- return(map { $_->[0]; } @$tags);
-}
-
-sub artists
-{
- my($self, @constraints)=@_;
- if(!@constraints) # /ALL
- {
- my $sql="SELECT DISTINCT name FROM artists;";
- my $tags=$self->cmd_rows($sql);
- 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)
- {
- print "CONSTRAINT: $constraint->{name}\n";
- 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);
- print "SQL: $sql\n";
- my $result=$self->cmd_rows($sql);
- my @tagnames=map { $_->[0]; } @$result;
- print "ARTISTS: ", join(', ', @tagnames), "\n";
- return(@tagnames);