forked from go-gorm/gorm
/
helper.go
95 lines (79 loc) · 2.33 KB
/
helper.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
package callbacks
import (
"sort"
"gorm.io/gorm"
"gorm.io/gorm/clause"
)
// ConvertMapToValuesForCreate convert map to values
func ConvertMapToValuesForCreate(stmt *gorm.Statement, mapValue map[string]interface{}) (values clause.Values) {
values.Columns = make([]clause.Column, 0, len(mapValue))
selectColumns, restricted := stmt.SelectAndOmitColumns(true, false)
var keys = make([]string, 0, len(mapValue))
for k := range mapValue {
keys = append(keys, k)
}
sort.Strings(keys)
for _, k := range keys {
value := mapValue[k]
if stmt.Schema != nil {
if field := stmt.Schema.LookUpField(k); field != nil {
k = field.DBName
}
}
if v, ok := selectColumns[k]; (ok && v) || (!ok && !restricted) {
values.Columns = append(values.Columns, clause.Column{Name: k})
if len(values.Values) == 0 {
values.Values = [][]interface{}{{}}
}
values.Values[0] = append(values.Values[0], value)
}
}
return
}
// ConvertSliceOfMapToValuesForCreate convert slice of map to values
func ConvertSliceOfMapToValuesForCreate(stmt *gorm.Statement, mapValues []map[string]interface{}) (values clause.Values) {
var (
columns = make([]string, 0, len(mapValues))
)
// when the length of mapValues is zero,return directly here
// no need to call stmt.SelectAndOmitColumns method
if len(mapValues) == 0 {
stmt.AddError(gorm.ErrEmptySlice)
return
}
var (
result = make(map[string][]interface{}, len(mapValues))
selectColumns, restricted = stmt.SelectAndOmitColumns(true, false)
)
for idx, mapValue := range mapValues {
for k, v := range mapValue {
if stmt.Schema != nil {
if field := stmt.Schema.LookUpField(k); field != nil {
k = field.DBName
}
}
if _, ok := result[k]; !ok {
if v, ok := selectColumns[k]; (ok && v) || (!ok && !restricted) {
result[k] = make([]interface{}, len(mapValues))
columns = append(columns, k)
} else {
continue
}
}
result[k][idx] = v
}
}
sort.Strings(columns)
values.Values = make([][]interface{}, len(mapValues))
values.Columns = make([]clause.Column, len(columns))
for idx, column := range columns {
values.Columns[idx] = clause.Column{Name: column}
for i, v := range result[column] {
if len(values.Values[i]) == 0 {
values.Values[i] = make([]interface{}, len(columns))
}
values.Values[i][idx] = v
}
}
return
}