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insert.go
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insert.go
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package sqlchemy
import (
"fmt"
"reflect"
"strings"
"yunion.io/x/log"
"yunion.io/x/pkg/gotypes"
"yunion.io/x/pkg/util/reflectutils"
)
func (t *STableSpec) Insert(dt interface{}) error {
return t.insert(dt, false)
}
func (t *STableSpec) insertSqlPrep(dataFields reflectutils.SStructFieldValueSet) (string, []interface{}, error) {
var autoIncField string
createdAtFields := make([]string, 0)
names := make([]string, 0)
format := make([]string, 0)
values := make([]interface{}, 0)
for _, c := range t.columns {
isAutoInc := false
nc, ok := c.(*SIntegerColumn)
if ok && nc.IsAutoIncrement {
isAutoInc = true
}
k := c.Name()
dtc, ok := c.(*SDateTimeColumn)
ov, find := dataFields.GetInterface(k)
if !find {
continue
}
if ok && (dtc.IsCreatedAt || dtc.IsUpdatedAt) {
createdAtFields = append(createdAtFields, k)
names = append(names, fmt.Sprintf("`%s`", k))
format = append(format, "UTC_TIMESTAMP()")
} else if c.IsSupportDefault() && len(c.Default()) > 0 && !gotypes.IsNil(ov) && c.IsZero(ov) { // empty text value
val := c.ConvertFromString(c.Default())
values = append(values, val)
names = append(names, fmt.Sprintf("`%s`", k))
format = append(format, "?")
} else if !gotypes.IsNil(ov) && (!c.IsZero(ov) || (!c.IsPointer() && !c.IsText())) && !isAutoInc {
v := c.ConvertFromValue(ov)
values = append(values, v)
names = append(names, fmt.Sprintf("`%s`", k))
format = append(format, "?")
} else if c.IsPrimary() {
if isAutoInc {
if len(autoIncField) > 0 {
panic(fmt.Sprintf("multiple auto_increment columns: %q, %q", autoIncField, k))
}
autoIncField = k
} else {
return "", nil, fmt.Errorf("cannot insert for null primary key %q", k)
}
}
}
insertSql := fmt.Sprintf("INSERT INTO `%s` (%s) VALUES(%s)",
t.name,
strings.Join(names, ", "),
strings.Join(format, ", "))
return insertSql, values, nil
}
func (t *STableSpec) insert(data interface{}, debug bool) error {
beforeInsertFunc := reflect.ValueOf(data).MethodByName("BeforeInsert")
if beforeInsertFunc.IsValid() && !beforeInsertFunc.IsNil() {
beforeInsertFunc.Call([]reflect.Value{})
}
dataValue := reflect.ValueOf(data).Elem()
dataFields := reflectutils.FetchStructFieldValueSet(dataValue)
insertSql, values, err := t.insertSqlPrep(dataFields)
if err != nil {
return err
}
if DEBUG_SQLCHEMY || debug {
log.Debugf("%s values: %v", insertSql, values)
}
results, err := _db.Exec(insertSql, values...)
if err != nil {
return err
}
affectCnt, err := results.RowsAffected()
if err != nil {
return err
}
if affectCnt != 1 {
return fmt.Errorf("Insert affected cnt %d != 1", affectCnt)
}
/*
if len(autoIncField) > 0 {
lastId, err := results.LastInsertId()
if err == nil {
val, ok := reflectutils.FindStructFieldValue(dataValue, autoIncField)
if ok {
gotypes.SetValue(val, fmt.Sprint(lastId))
}
}
}
*/
// query the value, so default value can be feedback into the object
// fields = reflectutils.FetchStructFieldNameValueInterfaces(dataValue)
q := t.Query()
for _, c := range t.columns {
if c.IsPrimary() {
nc, ok := c.(*SIntegerColumn)
if ok && nc.IsAutoIncrement {
lastId, err := results.LastInsertId()
if err != nil {
err := fmt.Errorf("fetching lastInsertId failed: %v", err)
return err
} else {
q = q.Equals(c.Name(), lastId)
}
} else {
priVal, _ := dataFields.GetInterface(c.Name())
if !gotypes.IsNil(priVal) {
q = q.Equals(c.Name(), priVal)
}
}
}
}
err = q.First(data)
if err != nil {
err := fmt.Errorf("query after insert failed: %v", err)
return err
}
return nil
}