forked from go-pg/pg
-
Notifications
You must be signed in to change notification settings - Fork 0
/
insert.go
67 lines (55 loc) · 1.27 KB
/
insert.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
package orm
func Create(db dber, v interface{}) error {
q := NewQuery(db, v)
if q.err != nil {
return q.err
}
_, err := db.QueryOne(q.model, insertQuery{q}, q.model)
return err
}
type insertQuery struct {
*Query
}
var _ QueryAppender = (*insertQuery)(nil)
func (ins insertQuery) AppendQuery(b []byte, params ...interface{}) ([]byte, error) {
table := ins.model.Table()
strct := ins.model.Value()
b = append(b, "INSERT INTO "...)
b = append(b, ins.tableName...)
b = append(b, " ("...)
start := len(b)
for _, field := range table.Fields {
if field.Has(PrimaryKeyFlag) && field.IsEmpty(strct) {
continue
}
b = append(b, field.ColName...)
b = append(b, ", "...)
}
if len(b) > start {
b = b[:len(b)-2]
}
b = append(b, ") VALUES ("...)
start = len(b)
for _, field := range table.Fields {
if field.Has(PrimaryKeyFlag) && field.IsEmpty(strct) {
continue
}
b = field.AppendValue(b, strct, 1)
b = append(b, ", "...)
}
if len(b) > start {
b = b[:len(b)-2]
}
b = append(b, ')')
if len(ins.onConflict) > 0 {
b = append(b, " ON CONFLICT "...)
b = append(b, ins.onConflict...)
}
if len(ins.returning) > 0 {
b = append(b, " RETURNING "...)
b = append(b, ins.returning...)
} else {
b = appendReturning(b, strct, table.PKs)
}
return b, nil
}