SQL/Orm ArtistIndexRepository complete

persistence/db_sql/index_repository.go

@@ -0,0 +1,113 @@
+package db_sql
+
+import (
+	"sort"
+
+	"github.com/astaxie/beego/orm"
+	"github.com/cloudsonic/sonic-server/domain"
+)
+
+type ArtistInfo struct {
+	ID         int `orm:"pk;auto;column(id)"`
+	Idx        string
+	ArtistID   string `orm:"column(artist_id)"`
+	Artist     string
+	AlbumCount int
+}
+
+type artistIndexRepository struct {
+	sqlRepository
+}
+
+func NewArtistIndexRepository() domain.ArtistIndexRepository {
+	r := &artistIndexRepository{}
+	r.entityName = "artist_info"
+	return r
+}
+
+func (r *artistIndexRepository) CountAll() (int64, error) {
+	count := struct{ Count int64 }{}
+	err := Db().Raw("select count(distinct(idx)) as count from artist_info").QueryRow(&count)
+	if err != nil {
+		return 0, err
+	}
+	return count.Count, nil
+}
+
+func (r *artistIndexRepository) Put(idx *domain.ArtistIndex) error {
+	return WithTx(func(o orm.Ormer) error {
+		_, err := r.newQuery(o).Filter("idx", idx.ID).Delete()
+		if err != nil {
+			return err
+		}
+		for _, artist := range idx.Artists {
+			a := ArtistInfo{
+				Idx:        idx.ID,
+				ArtistID:   artist.ArtistID,
+				Artist:     artist.Artist,
+				AlbumCount: artist.AlbumCount,
+			}
+			_, err := o.Insert(&a)
+			if err != nil {
+				return err
+			}
+		}
+		return nil
+	})
+}
+
+func (r *artistIndexRepository) Get(id string) (*domain.ArtistIndex, error) {
+	var ais []ArtistInfo
+	_, err := r.newQuery(Db()).Filter("idx", id).All(&ais)
+	if err != nil {
+		return nil, err
+	}
+
+	idx := &domain.ArtistIndex{ID: id}
+	idx.Artists = make([]domain.ArtistInfo, len(ais))
+	for i, a := range ais {
+		idx.Artists[i] = domain.ArtistInfo{
+			ArtistID:   a.ArtistID,
+			Artist:     a.Artist,
+			AlbumCount: a.AlbumCount,
+		}
+	}
+	return idx, err
+}
+
+func (r *artistIndexRepository) GetAll() (domain.ArtistIndexes, error) {
+	var all []ArtistInfo
+	_, err := r.newQuery(Db()).OrderBy("idx", "artist").All(&all)
+	if err != nil {
+		return nil, err
+	}
+
+	fullIdx := make(map[string]*domain.ArtistIndex)
+	for _, a := range all {
+		idx, ok := fullIdx[a.Idx]
+		if !ok {
+			idx = &domain.ArtistIndex{ID: a.Idx}
+			fullIdx[a.Idx] = idx
+		}
+		idx.Artists = append(idx.Artists, domain.ArtistInfo{
+			ArtistID:   a.ArtistID,
+			Artist:     a.Artist,
+			AlbumCount: a.AlbumCount,
+		})
+	}
+	var result domain.ArtistIndexes
+	for _, idx := range fullIdx {
+		result = append(result, *idx)
+	}
+	sort.Slice(result, func(i, j int) bool {
+		return result[i].ID < result[j].ID
+	})
+	return result, nil
+}
+
+func (r *artistIndexRepository) DeleteAll() error {
+	_, err := r.newQuery(Db()).Exclude("idx", ".PHONY").Delete()
+	return err
+}
+
+var _ domain.ArtistIndexRepository = (*artistIndexRepository)(nil)