gorm/callbacks/helper.go

74 lines
1.8 KiB
Go

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 []string
for k := range mapValue {
keys = append(keys, k)
}
sort.Strings(keys)
for _, k := range keys {
value := mapValue[k]
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})
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 = []string{}
result = map[string][]interface{}{}
selectColumns, restricted = stmt.SelectAndOmitColumns(true, false)
)
for idx, mapValue := range mapValues {
for k, v := range mapValue {
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))
for idx, column := range columns {
for i, v := range result[column] {
if i == 0 {
values.Values[i] = make([]interface{}, len(columns))
}
values.Values[i][idx] = v
}
}
return
}