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Code Issues Releases Activity

#436 support insert multi

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This commit is contained in:
slene
2014-01-06 11:07:03 +08:00
parent 6f3a759ba5
commit b766f65c26
5 changed files with 167 additions and 51 deletions
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119
orm/db.go
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@ -51,7 +51,13 @@ type dbBase struct {
var _ dbBaser = new(dbBase)
func (d *dbBase) collectValues(mi *modelInfo, ind reflect.Value, cols []string, skipAuto bool, insert bool, tz *time.Location) (columns []string, values []interface{}, err error) {
func (d *dbBase) collectValues(mi *modelInfo, ind reflect.Value, cols []string, skipAuto bool, insert bool, names *[]string, tz *time.Location) (values []interface{}, err error) {
var columns []string
if names != nil {
columns = *names
}
for _, column := range cols {
var fi *fieldInfo
if fi, _ = mi.fields.GetByAny(column); fi != nil {
@ -64,11 +70,20 @@ func (d *dbBase) collectValues(mi *modelInfo, ind reflect.Value, cols []string,
}
value, err := d.collectFieldValue(mi, fi, ind, insert, tz)
if err != nil {
return nil, nil, err
return nil, err
}
columns = append(columns, column)
if names != nil {
columns = append(columns, column)
}
values = append(values, value)
}
if names != nil {
*names = columns
}
return
}
@ -166,7 +181,7 @@ func (d *dbBase) PrepareInsert(q dbQuerier, mi *modelInfo) (stmtQuerier, string,
}
func (d *dbBase) InsertStmt(stmt stmtQuerier, mi *modelInfo, ind reflect.Value, tz *time.Location) (int64, error) {
_, values, err := d.collectValues(mi, ind, mi.fields.dbcols, true, true, tz)
values, err := d.collectValues(mi, ind, mi.fields.dbcols, true, true, nil, tz)
if err != nil {
return 0, err
}
@ -192,7 +207,8 @@ func (d *dbBase) Read(q dbQuerier, mi *modelInfo, ind reflect.Value, tz *time.Lo
// if specify cols length > 0, then use it for where condition.
if len(cols) > 0 {
var err error
whereCols, args, err = d.collectValues(mi, ind, cols, false, false, tz)
whereCols = make([]string, 0, len(cols))
args, err = d.collectValues(mi, ind, cols, false, false, &whereCols, tz)
if err != nil {
return err
}
@ -202,7 +218,7 @@ func (d *dbBase) Read(q dbQuerier, mi *modelInfo, ind reflect.Value, tz *time.Lo
if ok == false {
return ErrMissPK
}
whereCols = append(whereCols, pkColumn)
whereCols = []string{pkColumn}
args = append(args, pkValue)
}
@ -244,15 +260,72 @@ func (d *dbBase) Read(q dbQuerier, mi *modelInfo, ind reflect.Value, tz *time.Lo
}
func (d *dbBase) Insert(q dbQuerier, mi *modelInfo, ind reflect.Value, tz *time.Location) (int64, error) {
names, values, err := d.collectValues(mi, ind, mi.fields.dbcols, true, true, tz)
names := make([]string, 0, len(mi.fields.dbcols)-1)
values, err := d.collectValues(mi, ind, mi.fields.dbcols, true, true, &names, tz)
if err != nil {
return 0, err
}
return d.InsertValue(q, mi, names, values)
return d.InsertValue(q, mi, false, names, values)
}
func (d *dbBase) InsertValue(q dbQuerier, mi *modelInfo, names []string, values []interface{}) (int64, error) {
func (d *dbBase) InsertMulti(q dbQuerier, mi *modelInfo, sind reflect.Value, bulk int, tz *time.Location) (int64, error) {
var (
cnt int64
nums int
values []interface{}
names []string
)
// typ := reflect.Indirect(mi.addrField).Type()
length := sind.Len()
for i := 1; i <= length; i++ {
ind := reflect.Indirect(sind.Index(i - 1))
// Is this needed ?
// if !ind.Type().AssignableTo(typ) {
// return cnt, ErrArgs
// }
if i == 1 {
vus, err := d.collectValues(mi, ind, mi.fields.dbcols, true, true, &names, tz)
if err != nil {
return cnt, err
}
values = make([]interface{}, bulk*len(vus))
nums += copy(values, vus)
} else {
vus, err := d.collectValues(mi, ind, mi.fields.dbcols, true, true, nil, tz)
if err != nil {
return cnt, err
}
if len(vus) != len(names) {
return cnt, ErrArgs
}
nums += copy(values[nums:], vus)
}
if i > 1 && i%bulk == 0 || length == i {
num, err := d.InsertValue(q, mi, true, names, values[:nums])
if err != nil {
return cnt, err
}
cnt += num
nums = 0
}
}
return cnt, nil
}
func (d *dbBase) InsertValue(q dbQuerier, mi *modelInfo, isMulti bool, names []string, values []interface{}) (int64, error) {
Q := d.ins.TableQuote()
marks := make([]string, len(names))
@ -264,21 +337,30 @@ func (d *dbBase) InsertValue(q dbQuerier, mi *modelInfo, names []string, values
qmarks := strings.Join(marks, ", ")
columns := strings.Join(names, sep)
multi := len(values) / len(names)
if isMulti {
qmarks = strings.Repeat(qmarks+"), (", multi-1) + qmarks
}
query := fmt.Sprintf("INSERT INTO %s%s%s (%s%s%s) VALUES (%s)", Q, mi.table, Q, Q, columns, Q, qmarks)
d.ins.ReplaceMarks(&query)
if d.ins.HasReturningID(mi, &query) {
row := q.QueryRow(query, values...)
var id int64
err := row.Scan(&id)
return id, err
} else {
if isMulti || !d.ins.HasReturningID(mi, &query) {
if res, err := q.Exec(query, values...); err == nil {
if isMulti {
return res.RowsAffected()
}
return res.LastInsertId()
} else {
return 0, err
}
} else {
row := q.QueryRow(query, values...)
var id int64
err := row.Scan(&id)
return id, err
}
}
@ -288,12 +370,17 @@ func (d *dbBase) Update(q dbQuerier, mi *modelInfo, ind reflect.Value, tz *time.
return 0, ErrMissPK
}
var setNames []string
// if specify cols length is zero, then commit all columns.
if len(cols) == 0 {
cols = mi.fields.dbcols
setNames = make([]string, 0, len(mi.fields.dbcols)-1)
} else {
setNames = make([]string, 0, len(cols))
}
setNames, setValues, err := d.collectValues(mi, ind, cols, true, false, tz)
setValues, err := d.collectValues(mi, ind, cols, true, false, &setNames, tz)
if err != nil {
return 0, err
}