14 my $class=ref($proto) || $proto;
18 my($dir, $init, $me)=@_;
19 $self->{dbpath}="$dir/$dbfile";
22 my $exists=-f $self->{dbpath};
26 unless($self->{postgres})
28 die("$me: $self->{dbpath}: not found. use --init to create.\n") if(!$exists && !$init);
29 die("$me: --init used but $self->{dbpath} exists.\n") if($exists && $init);
32 my $connectstr="dbi:SQLite:dbname=$self->{dbpath}";
33 my ($user, $pass)=("", "");
36 $connectstr="dbi:Pg:dbname=id3fs";
40 $self->{dbh}=DBI->connect($connectstr, $user, $pass,
42 unless(defined($self->{dbh}))
44 die("$me: DB Error: " . $DBI::errstr . "\n");
62 my @schema=split(/\n\n/,join("", <DATA>));
66 $self->{dbh}->do($cmd);
70 $self->cmd("CREATE SEQUENCE seq");
74 my %indexes=( "idx_files_id" => "files(id)",
75 "idx_fxt_both" => "files_x_tags(files_id, tags_id)",
76 "idx_fxt_files" => "files_x_tags (files_id)",
77 "idx_fxt_tags" => "files_x_tags (tags_id)",
78 "idx_tags_id" => "tags (id)",
79 "idx_tags_name" => "tags(name)" );
80 for my $index (keys %indexes)
82 $self->{dbh}->do("CREATE INDEX $index ON " . $indexes{$index});
85 $self->cmd("INSERT INTO id3fs (schema_version) VALUES (?)", $SCHEMA_VERSION);
91 my ($version)=$self->cmd_onerow("SELECT schema_version from id3fs");
92 if(!defined($version) || $version != $SCHEMA_VERSION)
94 die("$self->{me}: id3fs database version " .
95 defined($version) ? $version : '""' .
96 "not known, current version is $SCHEMA_VERSION.\n");
102 my($self, $sql, @params)=@_;
103 my $sth=$self->{dbh}->prepare($sql);
105 for my $param (@params)
107 $param="" unless(defined($param));
108 $sth->bind_param($idx++, $param);
116 my($self, @constraints)=@_;
117 if(!@constraints) # /
119 my $sql="SELECT DISTINCT name FROM tags;";
120 my $tags=$self->cmd_rows($sql);
121 return(map { $_->[0]; } @$tags);
126 my $main_sql_start=("SELECT t2.name\n" .
127 "\tFROM (SELECT files_id FROM tags t1\n" .
128 "\t\tINNER JOIN files_x_tags ON t1.id=files_x_tags.tags_id\n" .
129 "\t\tWHERE t1.id in \n\t\t\t(");
130 my $main_sql_mid=(")\n\t\t) AS fxt1\n" .
131 "\tINNER JOIN files_x_tags fxt2 ON fxt1.files_id=fxt2.files_id\n" .
132 "\tINNER JOIN tags t2 ON fxt2.tags_id=t2.id\n" .
133 "\tWHERE t2.id NOT IN (");
134 my $main_sql_end=")\n\tGROUP BY t2.name;";
135 while(my $constraint=shift @constraints)
137 print "CONSTRAINT: $constraint->{name}\n";
138 my $cid=$constraint->{id};
139 push(@tag_ids, $cid);
141 @tag_ids = map( { "\"$_\""; } @tag_ids) unless($self->{postgres});
142 my $tagstr=join(", ", @tag_ids);
143 my $sql = ($main_sql_start . $tagstr .
144 $main_sql_mid . $tagstr .
147 my $result=$self->cmd_rows($sql);
148 my @tagnames=map { $_->[0]; } @$result;
149 print "SUBNAMES: ", join(', ', @tagnames), "\n";
156 my $sql=("SELECT DISTINCT tagvals.name FROM tags\n" .
157 "INNER JOIN tags_x_tagvals ON tags.id=tags_x_tagvals.tags_id\n" .
158 "INNER JOIN tagvals ON tagvals.id=tags_x_tagvals.tagvals_id\n" .
159 "WHERE tags.name=?");
160 my $tags=$self->cmd_rows($sql, $tag);
161 return(map { $_->[0]; } @$tags);
167 my $sql='SELECT id FROM tags WHERE name=?';
168 my ($id)=$self->cmd_onerow($sql, $tag);
175 my $file=ID3FS::File->new($path);
176 return unless(defined($file));
177 my $artist=$file->artist();
178 my $album=$file->album();
179 my $v1genre=$file->v1genre();
180 my $year=$file->year();
181 my $audiotype=$file->album();
182 my $tags=$file->tags();
183 my $haspic=$file->haspic();
185 my $file_id=$self->add_to_table("files", $path);
186 my $artists_id=$self->add_to_table("artists", $artist);
187 my $albums_id=$self->add_to_table("albums", $album);
188 for my $tag (keys %$tags)
190 $self->add_tag($file_id, $tag, $tags->{$tag});
195 $self->add_tag($file_id, "year", $year);
196 if($year=~/^(\d\d\d)\d$/)
198 $self->add_tag($file_id, "decade", "${1}0s");
201 if($self->ok($v1genre))
203 $self->add_tag($file_id, "v1genre", $v1genre);
208 $self->add_tag($file_id, "haspic", undef);
211 $self->add_relation("files_x_artists",
212 { "files_id" => $file_id,
213 "artists_id" => $artists_id });
215 $self->add_relation("artists_x_albums",
216 { "artists_id" => $artists_id,
217 "albums_id" => $albums_id});
222 my($self, $file_id, $tag, $val)=@_;
223 my $tag_id=$self->add_to_table("tags", $tag);
224 $self->add_relation("files_x_tags",
225 { "files_id" => $file_id,
226 "tags_id" => $tag_id });
229 my $val_id=$self->add_to_table("tagvals", $val);
230 $self->add_relation("tags_x_tagvals",
231 { "tags_id" => $tag_id,
232 "tagvals_id" => $val_id });
238 my($self, $table, $name, $extradata)=@_;
239 my $id=$self->lookup_id($table, $name);
242 my $sql="INSERT INTO $table (";
243 $sql .= "id, " if($self->{postgres});
245 if(defined($extradata))
247 push(@fields, sort keys(%$extradata));
249 $sql .= join(", ", @fields);
251 $sql .=") nextval('seq'), " if($self->{postgres});
252 $sql .= join(", ", map { "?"; } @fields);
254 $id=$self->cmd_id($sql, $name, map { $extradata->{$_} || ""; } sort keys %$extradata);
261 my ($self, $relname, $fields)=@_;
262 return if($self->relation_exists($relname, $fields));
263 my $sql="INSERT INTO $relname (";
264 $sql .= join(", ", sort keys(%$fields));
265 $sql .= ") VALUES (";
266 $sql .= join(", ", map { "?"; } sort keys(%$fields));
268 $self->cmd($sql, map { $fields->{$_}; } sort keys(%$fields));
273 my($self, $table, $name)=@_;
274 my($id)=$self->cmd_onerow("SELECT id FROM $table where name=?", $name);
280 my ($self, $relname, $fields)=@_;
281 my $sql="SELECT count(1) FROM $relname WHERE ";
284 for my $field (keys %$fields)
287 push(@vals,$fields->{$field});
289 $sql .= join(' AND ', map { "$_=?"; } @exprs);
290 my ($ret)=$self->cmd_onerow($sql, @vals);
296 my($self, $thing)=@_;
297 return(defined($thing) && length($thing));
302 my ($self, @args)=@_;
303 # don't care about retcode
304 $self->cmd_sth(@args);
309 my ($self, @args)=@_;
310 my $sth=$self->cmd_sth(@args);
311 return($sth->fetchrow_array());
316 my ($self, @args)=@_;
317 my $sth=$self->cmd_sth(@args);
318 return $sth->fetchall_arrayref();
323 my ($self, @args)=@_;
324 $self->cmd_sth(@args);
325 return($self->last_insert_id());
331 if($self->{postgres})
333 return $self->{dbh}->last_insert_id(undef, undef, undef, undef,
334 { sequence => "seq" });
338 return $self->{dbh}->last_insert_id("","","","");
345 schema_version INTEGER
349 id INTEGER PRIMARY KEY,
353 CREATE TABLE artists (
354 id INTEGER PRIMARY KEY,
358 CREATE TABLE albums (
359 id INTEGER PRIMARY KEY,
364 id INTEGER PRIMARY KEY,
368 CREATE TABLE tagvals (
369 id INTEGER PRIMARY KEY,
373 CREATE TABLE files_x_tags (
378 CREATE TABLE tags_x_tagvals (
383 CREATE TABLE files_x_artists (
388 CREATE TABLE artists_x_albums (