/
song_repository.go
186 lines (177 loc) · 5.35 KB
/
song_repository.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
package repository
import (
"database/sql"
"domain"
"interfaces/repository/rdb"
)
type SongRepository struct {
rdb.SqlHandler
}
func shortenSongLen(songLen string) string {
var i int
for i = 0; i < 4; i++ {
if string(songLen[i]) != ":" && string(songLen[i]) != "0" {
break
}
}
return songLen[i:]
}
func (repo *SongRepository) GetSong(id int) (song domain.Song, err error) {
rows, err := repo.Query(`SELECT songs.id, songs.name, songs.genre, songs.song_len,
p_artist.id, p_artist.name, p_artist.image_url,
albums.id, albums.name, albums.image_url, albums.released_date,
artists.id, artists.name, artists.image_url, oc.id, oc.title,
external_ids.external_id, external_services.name
FROM songs
INNER JOIN artists as p_artist
ON songs.primary_artist_id = p_artist.id
AND songs.id = ?
INNER JOIN contents
ON songs.id = contents.song_id
INNER JOIN albums
ON contents.album_id = albums.id
LEFT OUTER JOIN performances
ON performances.song_id = songs.id
LEFT OUTER JOIN occupations as oc
ON oc.id = performances.occupation_id
LEFT OUTER JOIN artists
ON artists.id = performances.artist_id
LEFT OUTER JOIN external_ids
ON external_ids.record_id = songs.id
AND external_ids.record_type = ?
LEFT OUTER JOIN external_services
ON external_ids.service_id = external_services.id
`, id, domain.RecordType.Song)
if err != nil {
return
}
defer rows.Close()
var genre, songLen sql.NullString // mysqlのTIME型はgoのtime.Timeで受け取れない
var releasedDate sql.NullTime
pArtist := domain.Artist{}
album := domain.Album{}
creditMap := map[int]*domain.Credit{}
links := domain.NewSongLinks()
for rows.Next() {
var aID, pID sql.NullInt64
var aName, aImgURL, pTitle, extID, extSName sql.NullString
if err = rows.Scan(&song.ID, &song.Name, &genre, &songLen, &pArtist.ID, &pArtist.Name, &pArtist.ImageURL, &album.ID, &album.Name, &album.ImageURL, &releasedDate, &aID, &aName, &aImgURL, &pID, &pTitle, &extID, &extSName); err != nil {
return
}
if extID.Valid {
err = links.AddLink(extID.String, extSName.String)
if err != nil {
return
}
}
if !aID.Valid { // no credit information
continue
}
artistID := int(aID.Int64)
if _, ok := creditMap[artistID]; !ok {
artist := domain.Artist{ID: artistID, Name: aName.String, ImageURL: aImgURL.String}
creditMap[artistID] = &domain.Credit{Artist: &artist, Parts: domain.NewOccupations()}
}
partID := int(pID.Int64)
if creditMap[artistID].Parts.Contains(partID) {
continue
}
part := domain.Occupation{ID: partID, Title: pTitle.String}
creditMap[artistID].Parts.Append(part)
}
if genre.Valid {
song.Genre = genre.String
}
if songLen.Valid {
song.SongLen = shortenSongLen(songLen.String)
}
for _, v := range creditMap {
song.Credits = append(song.Credits, *v)
}
if releasedDate.Valid {
album.ReleasedDate = &releasedDate.Time
}
song.Album = album
if links.Length() > 0 {
song.Links = links
}
song.PrimaryArtist = pArtist
return
}
func (repo *SongRepository) GetAttendedSongs(artistId int) (songs []domain.Song, err error) {
rows, err := repo.Query(`SELECT DISTINCT songs.id, songs.name, albums.id, albums.name, albums.image_url, albums.released_date
FROM songs
INNER JOIN performances
ON performances.song_id = songs.id
AND performances.artist_id = ?
INNER JOIN contents
ON contents.song_id = songs.id
INNER JOIN albums
ON albums.id = contents.album_id
WHERE songs.primary_artist_id <> ?
`, artistId, artistId)
if err != nil {
return
}
defer rows.Close()
for rows.Next() {
song := domain.Song{}
album := domain.Album{}
var releasedDate sql.NullTime
if err = rows.Scan(&song.ID, &song.Name, &album.ID, &album.Name, &album.ImageURL, &releasedDate); err != nil {
return
}
if releasedDate.Valid {
album.ReleasedDate = &releasedDate.Time
}
song.Album = album
songs = append(songs, song)
}
return
}
func (repo *SongRepository) GetSongsInAlbum(albumId int) (songs []domain.Song, err error) {
rows, err := repo.Query(`SELECT songs.id, songs.name, songs.song_len,
external_ids.external_id, external_services.name, contents.song_order
FROM songs
INNER JOIN contents
ON contents.album_id = ?
AND songs.id = contents.song_id
LEFT OUTER JOIN external_ids
ON external_ids.record_id = songs.id
AND external_ids.record_type = ?
LEFT OUTER JOIN external_services
ON external_ids.service_id = external_services.id
`, albumId, domain.RecordType.Song)
if err != nil {
return
}
defer rows.Close()
songMap := map[int]*domain.Song{}
for rows.Next() {
song := domain.Song{}
var songLen, extID, extSName sql.NullString
if err = rows.Scan(&song.ID, &song.Name, &songLen, &extID, &extSName, &song.Order); err != nil {
return
}
if _, ok := songMap[song.ID]; !ok {
if songLen.Valid {
song.SongLen = shortenSongLen(songLen.String)
}
songMap[song.ID] = &song
}
if !extID.Valid {
continue
}
if songMap[song.ID].Links == nil {
songMap[song.ID].Links = domain.NewSongLinks()
}
err = songMap[song.ID].Links.AddLink(extID.String, extSName.String)
if err != nil {
return
}
}
for _, v := range songMap {
songs = append(songs, *v)
}
return
}