| 21 | } |
| 22 | |
| 23 | func main() { |
| 24 | ctx := context.Background() |
| 25 | |
| 26 | rdb := redis.NewClient(&redis.Options{ |
| 27 | Addr: ":6379", |
| 28 | }) |
| 29 | _ = rdb.FlushDB(ctx).Err() |
| 30 | |
| 31 | // Set some fields. |
| 32 | if _, err := rdb.Pipelined(ctx, func(rdb redis.Pipeliner) error { |
| 33 | rdb.HSet(ctx, "key", "str1", "hello") |
| 34 | rdb.HSet(ctx, "key", "str2", "world") |
| 35 | rdb.HSet(ctx, "key", "str3", "") |
| 36 | rdb.HSet(ctx, "key", "int", 123) |
| 37 | rdb.HSet(ctx, "key", "int2", 0) |
| 38 | rdb.HSet(ctx, "key", "bool", 1) |
| 39 | rdb.HSet(ctx, "key", "bool2", 0) |
| 40 | rdb.HSet(ctx, "key", "bytes", []byte("this is bytes !")) |
| 41 | return nil |
| 42 | }); err != nil { |
| 43 | panic(err) |
| 44 | } |
| 45 | |
| 46 | var model1, model2 Model |
| 47 | |
| 48 | // Scan all fields into the model. |
| 49 | if err := rdb.HGetAll(ctx, "key").Scan(&model1); err != nil { |
| 50 | panic(err) |
| 51 | } |
| 52 | |
| 53 | // Or scan a subset of the fields. |
| 54 | if err := rdb.HMGet(ctx, "key", "str1", "int").Scan(&model2); err != nil { |
| 55 | panic(err) |
| 56 | } |
| 57 | |
| 58 | spew.Dump(model1) |
| 59 | // Output: |
| 60 | // (main.Model) { |
| 61 | // Str1: (string) (len=5) "hello", |
| 62 | // Str2: (string) (len=5) "world", |
| 63 | // Bytes: ([]uint8) (len=15 cap=16) { |
| 64 | // 00000000 74 68 69 73 20 69 73 20 62 79 74 65 73 20 21 |this is bytes !| |
| 65 | // }, |
| 66 | // Int: (int) 123, |
| 67 | // Bool: (bool) true, |
| 68 | // Ignored: (struct {}) { |
| 69 | // } |
| 70 | // } |
| 71 | |
| 72 | spew.Dump(model2) |
| 73 | // Output: |
| 74 | // (main.Model) { |
| 75 | // Str1: (string) (len=5) "hello", |
| 76 | // Str2: (string) "", |
| 77 | // Bytes: ([]uint8) <nil>, |
| 78 | // Int: (int) 123, |
| 79 | // Bool: (bool) false, |
| 80 | // Ignored: (struct {}) { |