forked from asdine/storm
/
save.go
113 lines (92 loc) · 1.94 KB
/
save.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
package storm
import (
"reflect"
"github.com/boltdb/bolt"
"github.com/fatih/structs"
)
// Save a structure
func (n *Node) Save(data interface{}) error {
if !structs.IsStruct(data) {
return ErrBadType
}
info, err := extract(data)
if err != nil {
return err
}
var id []byte
if info.ID.IsZero {
if !info.ID.IsOfIntegerFamily() || !n.s.autoIncrement {
return ErrZeroID
}
} else {
id, err = toBytes(info.ID.Value, n.s.Codec)
if err != nil {
return err
}
}
var raw []byte
// postpone encoding if AutoIncrement mode if enabled
if !n.s.autoIncrement {
raw, err = n.s.Codec.Encode(data)
if err != nil {
return err
}
}
if n.tx != nil {
return n.save(n.tx, info, id, raw)
}
return n.s.Bolt.Update(func(tx *bolt.Tx) error {
return n.save(tx, info, id, raw)
})
}
func (n *Node) save(tx *bolt.Tx, info *modelInfo, id []byte, raw []byte) error {
bucket, err := n.CreateBucketIfNotExists(tx, info.Name)
if err != nil {
return err
}
if info.ID.IsZero {
// isZero and integer, generate next sequence
intID, _ := bucket.NextSequence()
// convert to the right integer size
err = info.ID.Field.Set(reflect.ValueOf(intID).Convert(info.ID.Type()).Interface())
if err != nil {
return err
}
id, err = toBytes(info.ID.Field.Value(), n.s.Codec)
if err != nil {
return err
}
}
if n.s.autoIncrement {
raw, err = n.s.Codec.Encode(info.data)
if err != nil {
return err
}
}
for fieldName, idxInfo := range info.Indexes {
idx, err := getIndex(bucket, idxInfo.Type, fieldName)
if err != nil {
return err
}
err = idx.RemoveID(id)
if err != nil {
return err
}
if idxInfo.Field.IsZero() {
continue
}
value, err := toBytes(idxInfo.Field.Value(), n.s.Codec)
if err != nil {
return err
}
err = idx.Add(value, id)
if err != nil {
return err
}
}
return bucket.Put(id, raw)
}
// Save a structure
func (s *DB) Save(data interface{}) error {
return s.root.Save(data)
}