105 lines
1.8 KiB
Go
105 lines
1.8 KiB
Go
package database
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import (
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"database/sql"
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)
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type Tag struct {
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Type
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id int64
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name string
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}
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func InsertTagToDatabase(db *Database, name string) *Tag {
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rows, err := db.Query("INSERT INTO tags (name) VALUES ($1) RETURNING id;", name)
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if err != nil {
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return nil
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}
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defer rows.Close()
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rows.Next()
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var id int64
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err = rows.Scan(&id)
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if err != nil {
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return nil
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}
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tag := GetTagFromDatabase(db, id)
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return tag
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}
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func GetOrCreateTagFromDatabaseByName(db *Database, name string) (tag *Tag) {
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tag = GetTagFromDatabaseByName(db, name)
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if tag == nil {
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tag = InsertTagToDatabase(db, name)
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}
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return
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}
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func GetTagFromDatabaseByName(db *Database, name string) *Tag {
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rows, err := db.Query("SELECT id, name FROM tags WHERE name ILIKE $1;", name)
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if err != nil {
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return nil
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}
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defer rows.Close()
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rows.Next()
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r, err := GetTagFromRow(db, rows)
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if err != nil {
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return nil
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}
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return r
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}
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func GetTagFromDatabase(db *Database, id int64) *Tag {
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rows, err := db.Query("SELECT id, name FROM tags WHERE id = $1;", id)
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if err != nil {
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return nil
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}
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defer rows.Close()
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rows.Next()
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r, err := GetTagFromRow(db, rows)
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if err != nil {
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return nil
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}
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return r
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}
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func GetTagFromRow(db *Database, row *sql.Rows) (*Tag, error) {
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r := &Tag{
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Type: Type{
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db: db,
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},
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}
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err := row.Scan(&r.id, &r.name)
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if err != nil {
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return nil, err
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}
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return r, nil
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}
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func (r *Tag) GetId() int64 {
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return r.id
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}
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func (r *Tag) GetName() string {
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return r.name
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}
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func (r *Tag) GetAlbums() (albums []*Album) {
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rows, err := r.db.Query("SELECT id, cover, identifiers, metadata FROM albums WHERE id IN(SELECT album FROM album_taggings WHERE tag = $1);", r.id)
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if err != nil {
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return nil
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}
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defer rows.Close()
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for rows.Next() {
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album, err := GetAlbumFromRow(r.db, rows)
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if err != nil {
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break
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}
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albums = append(albums, album)
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}
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return
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}
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