mirror of
https://github.com/astaxie/beego.git
synced 2024-11-16 15:40:54 +00:00
1868 lines
44 KiB
Go
1868 lines
44 KiB
Go
// Copyright 2014 beego Author. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package orm
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import (
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"database/sql"
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"errors"
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"fmt"
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"reflect"
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"strings"
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"time"
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)
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const (
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formatTime = "15:04:05"
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formatDate = "2006-01-02"
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formatDateTime = "2006-01-02 15:04:05"
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)
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var (
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// ErrMissPK missing pk error
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ErrMissPK = errors.New("missed pk value")
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)
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var (
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operators = map[string]bool{
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"exact": true,
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"iexact": true,
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"contains": true,
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"icontains": true,
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// "regex": true,
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// "iregex": true,
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"gt": true,
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"gte": true,
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"lt": true,
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"lte": true,
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"eq": true,
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"nq": true,
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"ne": true,
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"startswith": true,
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"endswith": true,
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"istartswith": true,
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"iendswith": true,
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"in": true,
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"between": true,
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// "year": true,
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// "month": true,
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// "day": true,
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// "week_day": true,
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"isnull": true,
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// "search": true,
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}
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)
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// an instance of dbBaser interface/
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type dbBase struct {
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ins dbBaser
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}
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// check dbBase implements dbBaser interface.
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var _ dbBaser = new(dbBase)
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// get struct columns values as interface slice.
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func (d *dbBase) collectValues(mi *modelInfo, ind reflect.Value, cols []string, skipAuto bool, insert bool, names *[]string, tz *time.Location) (values []interface{}, autoFields []string, err error) {
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if names == nil {
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ns := make([]string, 0, len(cols))
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names = &ns
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}
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values = make([]interface{}, 0, len(cols))
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for _, column := range cols {
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var fi *fieldInfo
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if fi, _ = mi.fields.GetByAny(column); fi != nil {
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column = fi.column
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} else {
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panic(fmt.Errorf("wrong db field/column name `%s` for model `%s`", column, mi.fullName))
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}
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if !fi.dbcol || fi.auto && skipAuto {
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continue
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}
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value, err := d.collectFieldValue(mi, fi, ind, insert, tz)
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if err != nil {
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return nil, nil, err
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}
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// ignore empty value auto field
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if insert && fi.auto {
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if fi.fieldType&IsPositiveIntegerField > 0 {
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if vu, ok := value.(uint64); !ok || vu == 0 {
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continue
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}
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} else {
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if vu, ok := value.(int64); !ok || vu == 0 {
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continue
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}
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}
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autoFields = append(autoFields, fi.column)
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}
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*names, values = append(*names, column), append(values, value)
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}
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return
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}
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// get one field value in struct column as interface.
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func (d *dbBase) collectFieldValue(mi *modelInfo, fi *fieldInfo, ind reflect.Value, insert bool, tz *time.Location) (interface{}, error) {
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var value interface{}
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if fi.pk {
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_, value, _ = getExistPk(mi, ind)
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} else {
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field := ind.FieldByIndex(fi.fieldIndex)
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if fi.isFielder {
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f := field.Addr().Interface().(Fielder)
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value = f.RawValue()
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} else {
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switch fi.fieldType {
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case TypeBooleanField:
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if nb, ok := field.Interface().(sql.NullBool); ok {
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value = nil
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if nb.Valid {
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value = nb.Bool
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}
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} else if field.Kind() == reflect.Ptr {
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if field.IsNil() {
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value = nil
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} else {
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value = field.Elem().Bool()
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}
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} else {
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value = field.Bool()
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}
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case TypeVarCharField, TypeCharField, TypeTextField, TypeJSONField, TypeJsonbField:
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if ns, ok := field.Interface().(sql.NullString); ok {
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value = nil
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if ns.Valid {
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value = ns.String
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}
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} else if field.Kind() == reflect.Ptr {
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if field.IsNil() {
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value = nil
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} else {
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value = field.Elem().String()
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}
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} else {
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value = field.String()
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}
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case TypeFloatField, TypeDecimalField:
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if nf, ok := field.Interface().(sql.NullFloat64); ok {
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value = nil
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if nf.Valid {
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value = nf.Float64
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}
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} else if field.Kind() == reflect.Ptr {
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if field.IsNil() {
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value = nil
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} else {
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value = field.Elem().Float()
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}
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} else {
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vu := field.Interface()
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if _, ok := vu.(float32); ok {
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value, _ = StrTo(ToStr(vu)).Float64()
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} else {
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value = field.Float()
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}
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}
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case TypeTimeField, TypeDateField, TypeDateTimeField:
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value = field.Interface()
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if t, ok := value.(time.Time); ok {
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d.ins.TimeToDB(&t, tz)
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if t.IsZero() {
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value = nil
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} else {
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value = t
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}
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}
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default:
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switch {
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case fi.fieldType&IsPositiveIntegerField > 0:
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if field.Kind() == reflect.Ptr {
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if field.IsNil() {
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value = nil
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} else {
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value = field.Elem().Uint()
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}
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} else {
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value = field.Uint()
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}
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case fi.fieldType&IsIntegerField > 0:
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if ni, ok := field.Interface().(sql.NullInt64); ok {
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value = nil
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if ni.Valid {
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value = ni.Int64
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}
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} else if field.Kind() == reflect.Ptr {
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if field.IsNil() {
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value = nil
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} else {
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value = field.Elem().Int()
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}
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} else {
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value = field.Int()
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}
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case fi.fieldType&IsRelField > 0:
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if field.IsNil() {
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value = nil
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} else {
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if _, vu, ok := getExistPk(fi.relModelInfo, reflect.Indirect(field)); ok {
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value = vu
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} else {
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value = nil
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}
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}
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if !fi.null && value == nil {
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return nil, fmt.Errorf("field `%s` cannot be NULL", fi.fullName)
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}
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}
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}
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}
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switch fi.fieldType {
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case TypeTimeField, TypeDateField, TypeDateTimeField:
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if fi.autoNow || fi.autoNowAdd && insert {
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if insert {
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if t, ok := value.(time.Time); ok && !t.IsZero() {
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break
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}
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}
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tnow := time.Now()
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d.ins.TimeToDB(&tnow, tz)
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value = tnow
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if fi.isFielder {
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f := field.Addr().Interface().(Fielder)
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f.SetRaw(tnow.In(DefaultTimeLoc))
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} else if field.Kind() == reflect.Ptr {
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v := tnow.In(DefaultTimeLoc)
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field.Set(reflect.ValueOf(&v))
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} else {
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field.Set(reflect.ValueOf(tnow.In(DefaultTimeLoc)))
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}
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}
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case TypeJSONField, TypeJsonbField:
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if s, ok := value.(string); (ok && len(s) == 0) || value == nil {
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if fi.colDefault && fi.initial.Exist() {
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value = fi.initial.String()
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} else {
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value = nil
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}
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}
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}
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}
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return value, nil
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}
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// create insert sql preparation statement object.
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func (d *dbBase) PrepareInsert(q dbQuerier, mi *modelInfo) (stmtQuerier, string, error) {
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Q := d.ins.TableQuote()
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dbcols := make([]string, 0, len(mi.fields.dbcols))
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marks := make([]string, 0, len(mi.fields.dbcols))
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for _, fi := range mi.fields.fieldsDB {
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if !fi.auto {
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dbcols = append(dbcols, fi.column)
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marks = append(marks, "?")
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}
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}
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qmarks := strings.Join(marks, ", ")
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sep := fmt.Sprintf("%s, %s", Q, Q)
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columns := strings.Join(dbcols, sep)
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query := fmt.Sprintf("INSERT INTO %s%s%s (%s%s%s) VALUES (%s)", Q, mi.table, Q, Q, columns, Q, qmarks)
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d.ins.ReplaceMarks(&query)
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d.ins.HasReturningID(mi, &query)
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stmt, err := q.Prepare(query)
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return stmt, query, err
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}
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// insert struct with prepared statement and given struct reflect value.
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func (d *dbBase) InsertStmt(stmt stmtQuerier, mi *modelInfo, ind reflect.Value, tz *time.Location) (int64, error) {
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values, _, err := d.collectValues(mi, ind, mi.fields.dbcols, true, true, nil, tz)
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if err != nil {
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return 0, err
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}
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if d.ins.HasReturningID(mi, nil) {
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row := stmt.QueryRow(values...)
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var id int64
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err := row.Scan(&id)
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return id, err
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}
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res, err := stmt.Exec(values...)
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if err == nil {
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return res.LastInsertId()
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}
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return 0, err
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}
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// query sql ,read records and persist in dbBaser.
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func (d *dbBase) Read(q dbQuerier, mi *modelInfo, ind reflect.Value, tz *time.Location, cols []string, isForUpdate bool) error {
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var whereCols []string
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var args []interface{}
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// if specify cols length > 0, then use it for where condition.
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if len(cols) > 0 {
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var err error
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whereCols = make([]string, 0, len(cols))
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args, _, err = d.collectValues(mi, ind, cols, false, false, &whereCols, tz)
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if err != nil {
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return err
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}
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} else {
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// default use pk value as where condtion.
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pkColumn, pkValue, ok := getExistPk(mi, ind)
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if !ok {
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return ErrMissPK
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}
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whereCols = []string{pkColumn}
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args = append(args, pkValue)
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}
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Q := d.ins.TableQuote()
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sep := fmt.Sprintf("%s, %s", Q, Q)
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sels := strings.Join(mi.fields.dbcols, sep)
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colsNum := len(mi.fields.dbcols)
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sep = fmt.Sprintf("%s = ? AND %s", Q, Q)
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wheres := strings.Join(whereCols, sep)
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forUpdate := ""
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if isForUpdate {
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forUpdate = "FOR UPDATE"
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}
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query := fmt.Sprintf("SELECT %s%s%s FROM %s%s%s WHERE %s%s%s = ? %s", Q, sels, Q, Q, mi.table, Q, Q, wheres, Q, forUpdate)
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refs := make([]interface{}, colsNum)
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for i := range refs {
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var ref interface{}
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refs[i] = &ref
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}
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d.ins.ReplaceMarks(&query)
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row := q.QueryRow(query, args...)
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if err := row.Scan(refs...); err != nil {
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if err == sql.ErrNoRows {
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return ErrNoRows
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}
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return err
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}
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elm := reflect.New(mi.addrField.Elem().Type())
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mind := reflect.Indirect(elm)
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d.setColsValues(mi, &mind, mi.fields.dbcols, refs, tz)
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ind.Set(mind)
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return nil
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}
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// execute insert sql dbQuerier with given struct reflect.Value.
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func (d *dbBase) Insert(q dbQuerier, mi *modelInfo, ind reflect.Value, tz *time.Location) (int64, error) {
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names := make([]string, 0, len(mi.fields.dbcols))
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values, autoFields, err := d.collectValues(mi, ind, mi.fields.dbcols, false, true, &names, tz)
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if err != nil {
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return 0, err
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}
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id, err := d.InsertValue(q, mi, false, names, values)
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if err != nil {
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return 0, err
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}
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if len(autoFields) > 0 {
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err = d.ins.setval(q, mi, autoFields)
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}
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return id, err
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}
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// multi-insert sql with given slice struct reflect.Value.
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func (d *dbBase) InsertMulti(q dbQuerier, mi *modelInfo, sind reflect.Value, bulk int, tz *time.Location) (int64, error) {
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var (
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cnt int64
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nums int
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values []interface{}
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names []string
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)
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// typ := reflect.Indirect(mi.addrField).Type()
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length, autoFields := sind.Len(), make([]string, 0, 1)
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for i := 1; i <= length; i++ {
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ind := reflect.Indirect(sind.Index(i - 1))
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// Is this needed ?
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// if !ind.Type().AssignableTo(typ) {
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// return cnt, ErrArgs
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// }
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if i == 1 {
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var (
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vus []interface{}
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err error
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)
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vus, autoFields, err = d.collectValues(mi, ind, mi.fields.dbcols, false, true, &names, tz)
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if err != nil {
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return cnt, err
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}
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values = make([]interface{}, bulk*len(vus))
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nums += copy(values, vus)
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} else {
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vus, _, err := d.collectValues(mi, ind, mi.fields.dbcols, false, true, nil, tz)
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if err != nil {
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return cnt, err
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}
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if len(vus) != len(names) {
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return cnt, ErrArgs
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}
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nums += copy(values[nums:], vus)
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}
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if i > 1 && i%bulk == 0 || length == i {
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num, err := d.InsertValue(q, mi, true, names, values[:nums])
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if err != nil {
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return cnt, err
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}
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cnt += num
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nums = 0
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}
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}
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var err error
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if len(autoFields) > 0 {
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err = d.ins.setval(q, mi, autoFields)
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}
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return cnt, err
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}
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// execute insert sql with given struct and given values.
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// insert the given values, not the field values in struct.
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func (d *dbBase) InsertValue(q dbQuerier, mi *modelInfo, isMulti bool, names []string, values []interface{}) (int64, error) {
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Q := d.ins.TableQuote()
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marks := make([]string, len(names))
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for i := range marks {
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marks[i] = "?"
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}
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sep := fmt.Sprintf("%s, %s", Q, Q)
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qmarks := strings.Join(marks, ", ")
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columns := strings.Join(names, sep)
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multi := len(values) / len(names)
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if isMulti {
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qmarks = strings.Repeat(qmarks+"), (", multi-1) + qmarks
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}
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query := fmt.Sprintf("INSERT INTO %s%s%s (%s%s%s) VALUES (%s)", Q, mi.table, Q, Q, columns, Q, qmarks)
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d.ins.ReplaceMarks(&query)
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if isMulti || !d.ins.HasReturningID(mi, &query) {
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res, err := q.Exec(query, values...)
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if err == nil {
|
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if isMulti {
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return res.RowsAffected()
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}
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return res.LastInsertId()
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}
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return 0, err
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}
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row := q.QueryRow(query, values...)
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var id int64
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err := row.Scan(&id)
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return id, err
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}
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|
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// InsertOrUpdate a row
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// If your primary key or unique column conflict will update
|
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// If no will insert
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func (d *dbBase) InsertOrUpdate(q dbQuerier, mi *modelInfo, ind reflect.Value, a *alias, args ...string) (int64, error) {
|
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args0 := ""
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iouStr := ""
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argsMap := map[string]string{}
|
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switch a.Driver {
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case DRMySQL:
|
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iouStr = "ON DUPLICATE KEY UPDATE"
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case DRPostgres:
|
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if len(args) == 0 {
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return 0, fmt.Errorf("`%s` use InsertOrUpdate must have a conflict column", a.DriverName)
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}
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args0 = strings.ToLower(args[0])
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iouStr = fmt.Sprintf("ON CONFLICT (%s) DO UPDATE SET", args0)
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default:
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return 0, fmt.Errorf("`%s` nonsupport InsertOrUpdate in beego", a.DriverName)
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}
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|
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//Get on the key-value pairs
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for _, v := range args {
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kv := strings.Split(v, "=")
|
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if len(kv) == 2 {
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argsMap[strings.ToLower(kv[0])] = kv[1]
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}
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}
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|
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isMulti := false
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names := make([]string, 0, len(mi.fields.dbcols)-1)
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Q := d.ins.TableQuote()
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values, _, err := d.collectValues(mi, ind, mi.fields.dbcols, true, true, &names, a.TZ)
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|
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if err != nil {
|
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return 0, err
|
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}
|
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|
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marks := make([]string, len(names))
|
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updateValues := make([]interface{}, 0)
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updates := make([]string, len(names))
|
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var conflitValue interface{}
|
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for i, v := range names {
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// identifier in database may not be case-sensitive, so quote it
|
|
v = fmt.Sprintf("%s%s%s", Q, v, Q)
|
|
marks[i] = "?"
|
|
valueStr := argsMap[strings.ToLower(v)]
|
|
if v == args0 {
|
|
conflitValue = values[i]
|
|
}
|
|
if valueStr != "" {
|
|
switch a.Driver {
|
|
case DRMySQL:
|
|
updates[i] = v + "=" + valueStr
|
|
case DRPostgres:
|
|
if conflitValue != nil {
|
|
//postgres ON CONFLICT DO UPDATE SET can`t use colu=colu+values
|
|
updates[i] = fmt.Sprintf("%s=(select %s from %s where %s = ? )", v, valueStr, mi.table, args0)
|
|
updateValues = append(updateValues, conflitValue)
|
|
} else {
|
|
return 0, fmt.Errorf("`%s` must be in front of `%s` in your struct", args0, v)
|
|
}
|
|
}
|
|
} else {
|
|
updates[i] = v + "=?"
|
|
updateValues = append(updateValues, values[i])
|
|
}
|
|
}
|
|
|
|
values = append(values, updateValues...)
|
|
|
|
sep := fmt.Sprintf("%s, %s", Q, Q)
|
|
qmarks := strings.Join(marks, ", ")
|
|
qupdates := strings.Join(updates, ", ")
|
|
columns := strings.Join(names, sep)
|
|
|
|
multi := len(values) / len(names)
|
|
|
|
if isMulti {
|
|
qmarks = strings.Repeat(qmarks+"), (", multi-1) + qmarks
|
|
}
|
|
//conflitValue maybe is a int,can`t use fmt.Sprintf
|
|
query := fmt.Sprintf("INSERT INTO %s%s%s (%s%s%s) VALUES (%s) %s "+qupdates, Q, mi.table, Q, Q, columns, Q, qmarks, iouStr)
|
|
|
|
d.ins.ReplaceMarks(&query)
|
|
|
|
if isMulti || !d.ins.HasReturningID(mi, &query) {
|
|
res, err := q.Exec(query, values...)
|
|
if err == nil {
|
|
if isMulti {
|
|
return res.RowsAffected()
|
|
}
|
|
return res.LastInsertId()
|
|
}
|
|
return 0, err
|
|
}
|
|
|
|
row := q.QueryRow(query, values...)
|
|
var id int64
|
|
err = row.Scan(&id)
|
|
if err != nil && err.Error() == `pq: syntax error at or near "ON"` {
|
|
err = fmt.Errorf("postgres version must 9.5 or higher")
|
|
}
|
|
return id, err
|
|
}
|
|
|
|
// execute update sql dbQuerier with given struct reflect.Value.
|
|
func (d *dbBase) Update(q dbQuerier, mi *modelInfo, ind reflect.Value, tz *time.Location, cols []string) (int64, error) {
|
|
pkName, pkValue, ok := getExistPk(mi, ind)
|
|
if !ok {
|
|
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))
|
|
}
|
|
|
|
setValues, _, err := d.collectValues(mi, ind, cols, true, false, &setNames, tz)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
|
|
setValues = append(setValues, pkValue)
|
|
|
|
Q := d.ins.TableQuote()
|
|
|
|
sep := fmt.Sprintf("%s = ?, %s", Q, Q)
|
|
setColumns := strings.Join(setNames, sep)
|
|
|
|
query := fmt.Sprintf("UPDATE %s%s%s SET %s%s%s = ? WHERE %s%s%s = ?", Q, mi.table, Q, Q, setColumns, Q, Q, pkName, Q)
|
|
|
|
d.ins.ReplaceMarks(&query)
|
|
|
|
res, err := q.Exec(query, setValues...)
|
|
if err == nil {
|
|
return res.RowsAffected()
|
|
}
|
|
return 0, err
|
|
}
|
|
|
|
// execute delete sql dbQuerier with given struct reflect.Value.
|
|
// delete index is pk.
|
|
func (d *dbBase) Delete(q dbQuerier, mi *modelInfo, ind reflect.Value, tz *time.Location, cols []string) (int64, error) {
|
|
var whereCols []string
|
|
var args []interface{}
|
|
// if specify cols length > 0, then use it for where condition.
|
|
if len(cols) > 0 {
|
|
var err error
|
|
whereCols = make([]string, 0, len(cols))
|
|
args, _, err = d.collectValues(mi, ind, cols, false, false, &whereCols, tz)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
} else {
|
|
// default use pk value as where condtion.
|
|
pkColumn, pkValue, ok := getExistPk(mi, ind)
|
|
if !ok {
|
|
return 0, ErrMissPK
|
|
}
|
|
whereCols = []string{pkColumn}
|
|
args = append(args, pkValue)
|
|
}
|
|
|
|
Q := d.ins.TableQuote()
|
|
|
|
sep := fmt.Sprintf("%s = ? AND %s", Q, Q)
|
|
wheres := strings.Join(whereCols, sep)
|
|
|
|
query := fmt.Sprintf("DELETE FROM %s%s%s WHERE %s%s%s = ?", Q, mi.table, Q, Q, wheres, Q)
|
|
|
|
d.ins.ReplaceMarks(&query)
|
|
res, err := q.Exec(query, args...)
|
|
if err == nil {
|
|
num, err := res.RowsAffected()
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
if num > 0 {
|
|
if mi.fields.pk.auto {
|
|
if mi.fields.pk.fieldType&IsPositiveIntegerField > 0 {
|
|
ind.FieldByIndex(mi.fields.pk.fieldIndex).SetUint(0)
|
|
} else {
|
|
ind.FieldByIndex(mi.fields.pk.fieldIndex).SetInt(0)
|
|
}
|
|
}
|
|
err := d.deleteRels(q, mi, args, tz)
|
|
if err != nil {
|
|
return num, err
|
|
}
|
|
}
|
|
return num, err
|
|
}
|
|
return 0, err
|
|
}
|
|
|
|
// update table-related record by querySet.
|
|
// need querySet not struct reflect.Value to update related records.
|
|
func (d *dbBase) UpdateBatch(q dbQuerier, qs *querySet, mi *modelInfo, cond *Condition, params Params, tz *time.Location) (int64, error) {
|
|
columns := make([]string, 0, len(params))
|
|
values := make([]interface{}, 0, len(params))
|
|
for col, val := range params {
|
|
if fi, ok := mi.fields.GetByAny(col); !ok || !fi.dbcol {
|
|
panic(fmt.Errorf("wrong field/column name `%s`", col))
|
|
} else {
|
|
columns = append(columns, fi.column)
|
|
values = append(values, val)
|
|
}
|
|
}
|
|
|
|
if len(columns) == 0 {
|
|
panic(fmt.Errorf("update params cannot empty"))
|
|
}
|
|
|
|
tables := newDbTables(mi, d.ins)
|
|
if qs != nil {
|
|
tables.parseRelated(qs.related, qs.relDepth)
|
|
}
|
|
|
|
where, args := tables.getCondSQL(cond, false, tz)
|
|
|
|
values = append(values, args...)
|
|
|
|
join := tables.getJoinSQL()
|
|
|
|
var query, T string
|
|
|
|
Q := d.ins.TableQuote()
|
|
|
|
if d.ins.SupportUpdateJoin() {
|
|
T = "T0."
|
|
}
|
|
|
|
cols := make([]string, 0, len(columns))
|
|
|
|
for i, v := range columns {
|
|
col := fmt.Sprintf("%s%s%s%s", T, Q, v, Q)
|
|
if c, ok := values[i].(colValue); ok {
|
|
switch c.opt {
|
|
case ColAdd:
|
|
cols = append(cols, col+" = "+col+" + ?")
|
|
case ColMinus:
|
|
cols = append(cols, col+" = "+col+" - ?")
|
|
case ColMultiply:
|
|
cols = append(cols, col+" = "+col+" * ?")
|
|
case ColExcept:
|
|
cols = append(cols, col+" = "+col+" / ?")
|
|
}
|
|
values[i] = c.value
|
|
} else {
|
|
cols = append(cols, col+" = ?")
|
|
}
|
|
}
|
|
|
|
sets := strings.Join(cols, ", ") + " "
|
|
|
|
if d.ins.SupportUpdateJoin() {
|
|
query = fmt.Sprintf("UPDATE %s%s%s T0 %sSET %s%s", Q, mi.table, Q, join, sets, where)
|
|
} else {
|
|
supQuery := fmt.Sprintf("SELECT T0.%s%s%s FROM %s%s%s T0 %s%s", Q, mi.fields.pk.column, Q, Q, mi.table, Q, join, where)
|
|
query = fmt.Sprintf("UPDATE %s%s%s SET %sWHERE %s%s%s IN ( %s )", Q, mi.table, Q, sets, Q, mi.fields.pk.column, Q, supQuery)
|
|
}
|
|
|
|
d.ins.ReplaceMarks(&query)
|
|
var err error
|
|
var res sql.Result
|
|
if qs != nil && qs.forContext {
|
|
res, err = q.ExecContext(qs.ctx, query, values...)
|
|
} else {
|
|
res, err = q.Exec(query, values...)
|
|
}
|
|
if err == nil {
|
|
return res.RowsAffected()
|
|
}
|
|
return 0, err
|
|
}
|
|
|
|
// delete related records.
|
|
// do UpdateBanch or DeleteBanch by condition of tables' relationship.
|
|
func (d *dbBase) deleteRels(q dbQuerier, mi *modelInfo, args []interface{}, tz *time.Location) error {
|
|
for _, fi := range mi.fields.fieldsReverse {
|
|
fi = fi.reverseFieldInfo
|
|
switch fi.onDelete {
|
|
case odCascade:
|
|
cond := NewCondition().And(fmt.Sprintf("%s__in", fi.name), args...)
|
|
_, err := d.DeleteBatch(q, nil, fi.mi, cond, tz)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
case odSetDefault, odSetNULL:
|
|
cond := NewCondition().And(fmt.Sprintf("%s__in", fi.name), args...)
|
|
params := Params{fi.column: nil}
|
|
if fi.onDelete == odSetDefault {
|
|
params[fi.column] = fi.initial.String()
|
|
}
|
|
_, err := d.UpdateBatch(q, nil, fi.mi, cond, params, tz)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
case odDoNothing:
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// delete table-related records.
|
|
func (d *dbBase) DeleteBatch(q dbQuerier, qs *querySet, mi *modelInfo, cond *Condition, tz *time.Location) (int64, error) {
|
|
tables := newDbTables(mi, d.ins)
|
|
tables.skipEnd = true
|
|
|
|
if qs != nil {
|
|
tables.parseRelated(qs.related, qs.relDepth)
|
|
}
|
|
|
|
if cond == nil || cond.IsEmpty() {
|
|
panic(fmt.Errorf("delete operation cannot execute without condition"))
|
|
}
|
|
|
|
Q := d.ins.TableQuote()
|
|
|
|
where, args := tables.getCondSQL(cond, false, tz)
|
|
join := tables.getJoinSQL()
|
|
|
|
cols := fmt.Sprintf("T0.%s%s%s", Q, mi.fields.pk.column, Q)
|
|
query := fmt.Sprintf("SELECT %s FROM %s%s%s T0 %s%s", cols, Q, mi.table, Q, join, where)
|
|
|
|
d.ins.ReplaceMarks(&query)
|
|
|
|
var rs *sql.Rows
|
|
r, err := q.Query(query, args...)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
rs = r
|
|
defer rs.Close()
|
|
|
|
var ref interface{}
|
|
args = make([]interface{}, 0)
|
|
cnt := 0
|
|
for rs.Next() {
|
|
if err := rs.Scan(&ref); err != nil {
|
|
return 0, err
|
|
}
|
|
pkValue, err := d.convertValueFromDB(mi.fields.pk, reflect.ValueOf(ref).Interface(), tz)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
args = append(args, pkValue)
|
|
cnt++
|
|
}
|
|
|
|
if cnt == 0 {
|
|
return 0, nil
|
|
}
|
|
|
|
marks := make([]string, len(args))
|
|
for i := range marks {
|
|
marks[i] = "?"
|
|
}
|
|
sqlIn := fmt.Sprintf("IN (%s)", strings.Join(marks, ", "))
|
|
query = fmt.Sprintf("DELETE FROM %s%s%s WHERE %s%s%s %s", Q, mi.table, Q, Q, mi.fields.pk.column, Q, sqlIn)
|
|
|
|
d.ins.ReplaceMarks(&query)
|
|
var res sql.Result
|
|
if qs != nil && qs.forContext {
|
|
res, err = q.ExecContext(qs.ctx, query, args...)
|
|
} else {
|
|
res, err = q.Exec(query, args...)
|
|
}
|
|
if err == nil {
|
|
num, err := res.RowsAffected()
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
if num > 0 {
|
|
err := d.deleteRels(q, mi, args, tz)
|
|
if err != nil {
|
|
return num, err
|
|
}
|
|
}
|
|
return num, nil
|
|
}
|
|
return 0, err
|
|
}
|
|
|
|
// read related records.
|
|
func (d *dbBase) ReadBatch(q dbQuerier, qs *querySet, mi *modelInfo, cond *Condition, container interface{}, tz *time.Location, cols []string) (int64, error) {
|
|
|
|
val := reflect.ValueOf(container)
|
|
ind := reflect.Indirect(val)
|
|
|
|
errTyp := true
|
|
one := true
|
|
isPtr := true
|
|
|
|
if val.Kind() == reflect.Ptr {
|
|
fn := ""
|
|
if ind.Kind() == reflect.Slice {
|
|
one = false
|
|
typ := ind.Type().Elem()
|
|
switch typ.Kind() {
|
|
case reflect.Ptr:
|
|
fn = getFullName(typ.Elem())
|
|
case reflect.Struct:
|
|
isPtr = false
|
|
fn = getFullName(typ)
|
|
}
|
|
} else {
|
|
fn = getFullName(ind.Type())
|
|
}
|
|
errTyp = fn != mi.fullName
|
|
}
|
|
|
|
if errTyp {
|
|
if one {
|
|
panic(fmt.Errorf("wrong object type `%s` for rows scan, need *%s", val.Type(), mi.fullName))
|
|
} else {
|
|
panic(fmt.Errorf("wrong object type `%s` for rows scan, need *[]*%s or *[]%s", val.Type(), mi.fullName, mi.fullName))
|
|
}
|
|
}
|
|
|
|
rlimit := qs.limit
|
|
offset := qs.offset
|
|
|
|
Q := d.ins.TableQuote()
|
|
|
|
var tCols []string
|
|
if len(cols) > 0 {
|
|
hasRel := len(qs.related) > 0 || qs.relDepth > 0
|
|
tCols = make([]string, 0, len(cols))
|
|
var maps map[string]bool
|
|
if hasRel {
|
|
maps = make(map[string]bool)
|
|
}
|
|
for _, col := range cols {
|
|
if fi, ok := mi.fields.GetByAny(col); ok {
|
|
tCols = append(tCols, fi.column)
|
|
if hasRel {
|
|
maps[fi.column] = true
|
|
}
|
|
} else {
|
|
return 0, fmt.Errorf("wrong field/column name `%s`", col)
|
|
}
|
|
}
|
|
if hasRel {
|
|
for _, fi := range mi.fields.fieldsDB {
|
|
if fi.fieldType&IsRelField > 0 {
|
|
if !maps[fi.column] {
|
|
tCols = append(tCols, fi.column)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
tCols = mi.fields.dbcols
|
|
}
|
|
|
|
colsNum := len(tCols)
|
|
sep := fmt.Sprintf("%s, T0.%s", Q, Q)
|
|
sels := fmt.Sprintf("T0.%s%s%s", Q, strings.Join(tCols, sep), Q)
|
|
|
|
tables := newDbTables(mi, d.ins)
|
|
tables.parseRelated(qs.related, qs.relDepth)
|
|
|
|
where, args := tables.getCondSQL(cond, false, tz)
|
|
groupBy := tables.getGroupSQL(qs.groups)
|
|
orderBy := tables.getOrderSQL(qs.orders)
|
|
limit := tables.getLimitSQL(mi, offset, rlimit)
|
|
join := tables.getJoinSQL()
|
|
|
|
for _, tbl := range tables.tables {
|
|
if tbl.sel {
|
|
colsNum += len(tbl.mi.fields.dbcols)
|
|
sep := fmt.Sprintf("%s, %s.%s", Q, tbl.index, Q)
|
|
sels += fmt.Sprintf(", %s.%s%s%s", tbl.index, Q, strings.Join(tbl.mi.fields.dbcols, sep), Q)
|
|
}
|
|
}
|
|
|
|
sqlSelect := "SELECT"
|
|
if qs.distinct {
|
|
sqlSelect += " DISTINCT"
|
|
}
|
|
query := fmt.Sprintf("%s %s FROM %s%s%s T0 %s%s%s%s%s", sqlSelect, sels, Q, mi.table, Q, join, where, groupBy, orderBy, limit)
|
|
|
|
if qs.forupdate {
|
|
query += " FOR UPDATE"
|
|
}
|
|
|
|
d.ins.ReplaceMarks(&query)
|
|
|
|
var rs *sql.Rows
|
|
var err error
|
|
if qs != nil && qs.forContext {
|
|
rs, err = q.QueryContext(qs.ctx, query, args...)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
} else {
|
|
rs, err = q.Query(query, args...)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
}
|
|
|
|
refs := make([]interface{}, colsNum)
|
|
for i := range refs {
|
|
var ref interface{}
|
|
refs[i] = &ref
|
|
}
|
|
|
|
defer rs.Close()
|
|
|
|
slice := ind
|
|
|
|
var cnt int64
|
|
for rs.Next() {
|
|
if one && cnt == 0 || !one {
|
|
if err := rs.Scan(refs...); err != nil {
|
|
return 0, err
|
|
}
|
|
|
|
elm := reflect.New(mi.addrField.Elem().Type())
|
|
mind := reflect.Indirect(elm)
|
|
|
|
cacheV := make(map[string]*reflect.Value)
|
|
cacheM := make(map[string]*modelInfo)
|
|
trefs := refs
|
|
|
|
d.setColsValues(mi, &mind, tCols, refs[:len(tCols)], tz)
|
|
trefs = refs[len(tCols):]
|
|
|
|
for _, tbl := range tables.tables {
|
|
// loop selected tables
|
|
if tbl.sel {
|
|
last := mind
|
|
names := ""
|
|
mmi := mi
|
|
// loop cascade models
|
|
for _, name := range tbl.names {
|
|
names += name
|
|
if val, ok := cacheV[names]; ok {
|
|
last = *val
|
|
mmi = cacheM[names]
|
|
} else {
|
|
fi := mmi.fields.GetByName(name)
|
|
lastm := mmi
|
|
mmi = fi.relModelInfo
|
|
field := last
|
|
if last.Kind() != reflect.Invalid {
|
|
field = reflect.Indirect(last.FieldByIndex(fi.fieldIndex))
|
|
if field.IsValid() {
|
|
d.setColsValues(mmi, &field, mmi.fields.dbcols, trefs[:len(mmi.fields.dbcols)], tz)
|
|
for _, fi := range mmi.fields.fieldsReverse {
|
|
if fi.inModel && fi.reverseFieldInfo.mi == lastm {
|
|
if fi.reverseFieldInfo != nil {
|
|
f := field.FieldByIndex(fi.fieldIndex)
|
|
if f.Kind() == reflect.Ptr {
|
|
f.Set(last.Addr())
|
|
}
|
|
}
|
|
}
|
|
}
|
|
last = field
|
|
}
|
|
}
|
|
cacheV[names] = &field
|
|
cacheM[names] = mmi
|
|
}
|
|
}
|
|
trefs = trefs[len(mmi.fields.dbcols):]
|
|
}
|
|
}
|
|
|
|
if one {
|
|
ind.Set(mind)
|
|
} else {
|
|
if cnt == 0 {
|
|
// you can use a empty & caped container list
|
|
// orm will not replace it
|
|
if ind.Len() != 0 {
|
|
// if container is not empty
|
|
// create a new one
|
|
slice = reflect.New(ind.Type()).Elem()
|
|
}
|
|
}
|
|
|
|
if isPtr {
|
|
slice = reflect.Append(slice, mind.Addr())
|
|
} else {
|
|
slice = reflect.Append(slice, mind)
|
|
}
|
|
}
|
|
}
|
|
cnt++
|
|
}
|
|
|
|
if !one {
|
|
if cnt > 0 {
|
|
ind.Set(slice)
|
|
} else {
|
|
// when a result is empty and container is nil
|
|
// to set a empty container
|
|
if ind.IsNil() {
|
|
ind.Set(reflect.MakeSlice(ind.Type(), 0, 0))
|
|
}
|
|
}
|
|
}
|
|
|
|
return cnt, nil
|
|
}
|
|
|
|
// excute count sql and return count result int64.
|
|
func (d *dbBase) Count(q dbQuerier, qs *querySet, mi *modelInfo, cond *Condition, tz *time.Location) (cnt int64, err error) {
|
|
tables := newDbTables(mi, d.ins)
|
|
tables.parseRelated(qs.related, qs.relDepth)
|
|
|
|
where, args := tables.getCondSQL(cond, false, tz)
|
|
groupBy := tables.getGroupSQL(qs.groups)
|
|
tables.getOrderSQL(qs.orders)
|
|
join := tables.getJoinSQL()
|
|
|
|
Q := d.ins.TableQuote()
|
|
|
|
query := fmt.Sprintf("SELECT COUNT(*) FROM %s%s%s T0 %s%s%s", Q, mi.table, Q, join, where, groupBy)
|
|
|
|
if groupBy != "" {
|
|
query = fmt.Sprintf("SELECT COUNT(*) FROM (%s) AS T", query)
|
|
}
|
|
|
|
d.ins.ReplaceMarks(&query)
|
|
|
|
var row *sql.Row
|
|
if qs != nil && qs.forContext {
|
|
row = q.QueryRowContext(qs.ctx, query, args...)
|
|
} else {
|
|
row = q.QueryRow(query, args...)
|
|
}
|
|
err = row.Scan(&cnt)
|
|
return
|
|
}
|
|
|
|
// generate sql with replacing operator string placeholders and replaced values.
|
|
func (d *dbBase) GenerateOperatorSQL(mi *modelInfo, fi *fieldInfo, operator string, args []interface{}, tz *time.Location) (string, []interface{}) {
|
|
var sql string
|
|
params := getFlatParams(fi, args, tz)
|
|
|
|
if len(params) == 0 {
|
|
panic(fmt.Errorf("operator `%s` need at least one args", operator))
|
|
}
|
|
arg := params[0]
|
|
|
|
switch operator {
|
|
case "in":
|
|
marks := make([]string, len(params))
|
|
for i := range marks {
|
|
marks[i] = "?"
|
|
}
|
|
sql = fmt.Sprintf("IN (%s)", strings.Join(marks, ", "))
|
|
case "between":
|
|
if len(params) != 2 {
|
|
panic(fmt.Errorf("operator `%s` need 2 args not %d", operator, len(params)))
|
|
}
|
|
sql = "BETWEEN ? AND ?"
|
|
default:
|
|
if len(params) > 1 {
|
|
panic(fmt.Errorf("operator `%s` need 1 args not %d", operator, len(params)))
|
|
}
|
|
sql = d.ins.OperatorSQL(operator)
|
|
switch operator {
|
|
case "exact":
|
|
if arg == nil {
|
|
params[0] = "IS NULL"
|
|
}
|
|
case "iexact", "contains", "icontains", "startswith", "endswith", "istartswith", "iendswith":
|
|
param := strings.Replace(ToStr(arg), `%`, `\%`, -1)
|
|
switch operator {
|
|
case "iexact":
|
|
case "contains", "icontains":
|
|
param = fmt.Sprintf("%%%s%%", param)
|
|
case "startswith", "istartswith":
|
|
param = fmt.Sprintf("%s%%", param)
|
|
case "endswith", "iendswith":
|
|
param = fmt.Sprintf("%%%s", param)
|
|
}
|
|
params[0] = param
|
|
case "isnull":
|
|
if b, ok := arg.(bool); ok {
|
|
if b {
|
|
sql = "IS NULL"
|
|
} else {
|
|
sql = "IS NOT NULL"
|
|
}
|
|
params = nil
|
|
} else {
|
|
panic(fmt.Errorf("operator `%s` need a bool value not `%T`", operator, arg))
|
|
}
|
|
}
|
|
}
|
|
return sql, params
|
|
}
|
|
|
|
// gernerate sql string with inner function, such as UPPER(text).
|
|
func (d *dbBase) GenerateOperatorLeftCol(*fieldInfo, string, *string) {
|
|
// default not use
|
|
}
|
|
|
|
// set values to struct column.
|
|
func (d *dbBase) setColsValues(mi *modelInfo, ind *reflect.Value, cols []string, values []interface{}, tz *time.Location) {
|
|
for i, column := range cols {
|
|
val := reflect.Indirect(reflect.ValueOf(values[i])).Interface()
|
|
|
|
fi := mi.fields.GetByColumn(column)
|
|
|
|
field := ind.FieldByIndex(fi.fieldIndex)
|
|
|
|
value, err := d.convertValueFromDB(fi, val, tz)
|
|
if err != nil {
|
|
panic(fmt.Errorf("Raw value: `%v` %s", val, err.Error()))
|
|
}
|
|
|
|
_, err = d.setFieldValue(fi, value, field)
|
|
|
|
if err != nil {
|
|
panic(fmt.Errorf("Raw value: `%v` %s", val, err.Error()))
|
|
}
|
|
}
|
|
}
|
|
|
|
// convert value from database result to value following in field type.
|
|
func (d *dbBase) convertValueFromDB(fi *fieldInfo, val interface{}, tz *time.Location) (interface{}, error) {
|
|
if val == nil {
|
|
return nil, nil
|
|
}
|
|
|
|
var value interface{}
|
|
var tErr error
|
|
|
|
var str *StrTo
|
|
switch v := val.(type) {
|
|
case []byte:
|
|
s := StrTo(string(v))
|
|
str = &s
|
|
case string:
|
|
s := StrTo(v)
|
|
str = &s
|
|
}
|
|
|
|
fieldType := fi.fieldType
|
|
|
|
setValue:
|
|
switch {
|
|
case fieldType == TypeBooleanField:
|
|
if str == nil {
|
|
switch v := val.(type) {
|
|
case int64:
|
|
b := v == 1
|
|
value = b
|
|
default:
|
|
s := StrTo(ToStr(v))
|
|
str = &s
|
|
}
|
|
}
|
|
if str != nil {
|
|
b, err := str.Bool()
|
|
if err != nil {
|
|
tErr = err
|
|
goto end
|
|
}
|
|
value = b
|
|
}
|
|
case fieldType == TypeVarCharField || fieldType == TypeCharField || fieldType == TypeTextField || fieldType == TypeJSONField || fieldType == TypeJsonbField:
|
|
if str == nil {
|
|
value = ToStr(val)
|
|
} else {
|
|
value = str.String()
|
|
}
|
|
case fieldType == TypeTimeField || fieldType == TypeDateField || fieldType == TypeDateTimeField:
|
|
if str == nil {
|
|
switch t := val.(type) {
|
|
case time.Time:
|
|
d.ins.TimeFromDB(&t, tz)
|
|
value = t
|
|
default:
|
|
s := StrTo(ToStr(t))
|
|
str = &s
|
|
}
|
|
}
|
|
if str != nil {
|
|
s := str.String()
|
|
var (
|
|
t time.Time
|
|
err error
|
|
)
|
|
if len(s) >= 19 {
|
|
s = s[:19]
|
|
t, err = time.ParseInLocation(formatDateTime, s, tz)
|
|
} else if len(s) >= 10 {
|
|
if len(s) > 10 {
|
|
s = s[:10]
|
|
}
|
|
t, err = time.ParseInLocation(formatDate, s, tz)
|
|
} else if len(s) >= 8 {
|
|
if len(s) > 8 {
|
|
s = s[:8]
|
|
}
|
|
t, err = time.ParseInLocation(formatTime, s, tz)
|
|
}
|
|
t = t.In(DefaultTimeLoc)
|
|
|
|
if err != nil && s != "00:00:00" && s != "0000-00-00" && s != "0000-00-00 00:00:00" {
|
|
tErr = err
|
|
goto end
|
|
}
|
|
value = t
|
|
}
|
|
case fieldType&IsIntegerField > 0:
|
|
if str == nil {
|
|
s := StrTo(ToStr(val))
|
|
str = &s
|
|
}
|
|
if str != nil {
|
|
var err error
|
|
switch fieldType {
|
|
case TypeBitField:
|
|
_, err = str.Int8()
|
|
case TypeSmallIntegerField:
|
|
_, err = str.Int16()
|
|
case TypeIntegerField:
|
|
_, err = str.Int32()
|
|
case TypeBigIntegerField:
|
|
_, err = str.Int64()
|
|
case TypePositiveBitField:
|
|
_, err = str.Uint8()
|
|
case TypePositiveSmallIntegerField:
|
|
_, err = str.Uint16()
|
|
case TypePositiveIntegerField:
|
|
_, err = str.Uint32()
|
|
case TypePositiveBigIntegerField:
|
|
_, err = str.Uint64()
|
|
}
|
|
if err != nil {
|
|
tErr = err
|
|
goto end
|
|
}
|
|
if fieldType&IsPositiveIntegerField > 0 {
|
|
v, _ := str.Uint64()
|
|
value = v
|
|
} else {
|
|
v, _ := str.Int64()
|
|
value = v
|
|
}
|
|
}
|
|
case fieldType == TypeFloatField || fieldType == TypeDecimalField:
|
|
if str == nil {
|
|
switch v := val.(type) {
|
|
case float64:
|
|
value = v
|
|
default:
|
|
s := StrTo(ToStr(v))
|
|
str = &s
|
|
}
|
|
}
|
|
if str != nil {
|
|
v, err := str.Float64()
|
|
if err != nil {
|
|
tErr = err
|
|
goto end
|
|
}
|
|
value = v
|
|
}
|
|
case fieldType&IsRelField > 0:
|
|
fi = fi.relModelInfo.fields.pk
|
|
fieldType = fi.fieldType
|
|
goto setValue
|
|
}
|
|
|
|
end:
|
|
if tErr != nil {
|
|
err := fmt.Errorf("convert to `%s` failed, field: %s err: %s", fi.addrValue.Type(), fi.fullName, tErr)
|
|
return nil, err
|
|
}
|
|
|
|
return value, nil
|
|
|
|
}
|
|
|
|
// set one value to struct column field.
|
|
func (d *dbBase) setFieldValue(fi *fieldInfo, value interface{}, field reflect.Value) (interface{}, error) {
|
|
|
|
fieldType := fi.fieldType
|
|
isNative := !fi.isFielder
|
|
|
|
setValue:
|
|
switch {
|
|
case fieldType == TypeBooleanField:
|
|
if isNative {
|
|
if nb, ok := field.Interface().(sql.NullBool); ok {
|
|
if value == nil {
|
|
nb.Valid = false
|
|
} else {
|
|
nb.Bool = value.(bool)
|
|
nb.Valid = true
|
|
}
|
|
field.Set(reflect.ValueOf(nb))
|
|
} else if field.Kind() == reflect.Ptr {
|
|
if value != nil {
|
|
v := value.(bool)
|
|
field.Set(reflect.ValueOf(&v))
|
|
}
|
|
} else {
|
|
if value == nil {
|
|
value = false
|
|
}
|
|
field.SetBool(value.(bool))
|
|
}
|
|
}
|
|
case fieldType == TypeVarCharField || fieldType == TypeCharField || fieldType == TypeTextField || fieldType == TypeJSONField || fieldType == TypeJsonbField:
|
|
if isNative {
|
|
if ns, ok := field.Interface().(sql.NullString); ok {
|
|
if value == nil {
|
|
ns.Valid = false
|
|
} else {
|
|
ns.String = value.(string)
|
|
ns.Valid = true
|
|
}
|
|
field.Set(reflect.ValueOf(ns))
|
|
} else if field.Kind() == reflect.Ptr {
|
|
if value != nil {
|
|
v := value.(string)
|
|
field.Set(reflect.ValueOf(&v))
|
|
}
|
|
} else {
|
|
if value == nil {
|
|
value = ""
|
|
}
|
|
field.SetString(value.(string))
|
|
}
|
|
}
|
|
case fieldType == TypeTimeField || fieldType == TypeDateField || fieldType == TypeDateTimeField:
|
|
if isNative {
|
|
if value == nil {
|
|
value = time.Time{}
|
|
} else if field.Kind() == reflect.Ptr {
|
|
if value != nil {
|
|
v := value.(time.Time)
|
|
field.Set(reflect.ValueOf(&v))
|
|
}
|
|
} else {
|
|
field.Set(reflect.ValueOf(value))
|
|
}
|
|
}
|
|
case fieldType == TypePositiveBitField && field.Kind() == reflect.Ptr:
|
|
if value != nil {
|
|
v := uint8(value.(uint64))
|
|
field.Set(reflect.ValueOf(&v))
|
|
}
|
|
case fieldType == TypePositiveSmallIntegerField && field.Kind() == reflect.Ptr:
|
|
if value != nil {
|
|
v := uint16(value.(uint64))
|
|
field.Set(reflect.ValueOf(&v))
|
|
}
|
|
case fieldType == TypePositiveIntegerField && field.Kind() == reflect.Ptr:
|
|
if value != nil {
|
|
if field.Type() == reflect.TypeOf(new(uint)) {
|
|
v := uint(value.(uint64))
|
|
field.Set(reflect.ValueOf(&v))
|
|
} else {
|
|
v := uint32(value.(uint64))
|
|
field.Set(reflect.ValueOf(&v))
|
|
}
|
|
}
|
|
case fieldType == TypePositiveBigIntegerField && field.Kind() == reflect.Ptr:
|
|
if value != nil {
|
|
v := value.(uint64)
|
|
field.Set(reflect.ValueOf(&v))
|
|
}
|
|
case fieldType == TypeBitField && field.Kind() == reflect.Ptr:
|
|
if value != nil {
|
|
v := int8(value.(int64))
|
|
field.Set(reflect.ValueOf(&v))
|
|
}
|
|
case fieldType == TypeSmallIntegerField && field.Kind() == reflect.Ptr:
|
|
if value != nil {
|
|
v := int16(value.(int64))
|
|
field.Set(reflect.ValueOf(&v))
|
|
}
|
|
case fieldType == TypeIntegerField && field.Kind() == reflect.Ptr:
|
|
if value != nil {
|
|
if field.Type() == reflect.TypeOf(new(int)) {
|
|
v := int(value.(int64))
|
|
field.Set(reflect.ValueOf(&v))
|
|
} else {
|
|
v := int32(value.(int64))
|
|
field.Set(reflect.ValueOf(&v))
|
|
}
|
|
}
|
|
case fieldType == TypeBigIntegerField && field.Kind() == reflect.Ptr:
|
|
if value != nil {
|
|
v := value.(int64)
|
|
field.Set(reflect.ValueOf(&v))
|
|
}
|
|
case fieldType&IsIntegerField > 0:
|
|
if fieldType&IsPositiveIntegerField > 0 {
|
|
if isNative {
|
|
if value == nil {
|
|
value = uint64(0)
|
|
}
|
|
field.SetUint(value.(uint64))
|
|
}
|
|
} else {
|
|
if isNative {
|
|
if ni, ok := field.Interface().(sql.NullInt64); ok {
|
|
if value == nil {
|
|
ni.Valid = false
|
|
} else {
|
|
ni.Int64 = value.(int64)
|
|
ni.Valid = true
|
|
}
|
|
field.Set(reflect.ValueOf(ni))
|
|
} else {
|
|
if value == nil {
|
|
value = int64(0)
|
|
}
|
|
field.SetInt(value.(int64))
|
|
}
|
|
}
|
|
}
|
|
case fieldType == TypeFloatField || fieldType == TypeDecimalField:
|
|
if isNative {
|
|
if nf, ok := field.Interface().(sql.NullFloat64); ok {
|
|
if value == nil {
|
|
nf.Valid = false
|
|
} else {
|
|
nf.Float64 = value.(float64)
|
|
nf.Valid = true
|
|
}
|
|
field.Set(reflect.ValueOf(nf))
|
|
} else if field.Kind() == reflect.Ptr {
|
|
if value != nil {
|
|
if field.Type() == reflect.TypeOf(new(float32)) {
|
|
v := float32(value.(float64))
|
|
field.Set(reflect.ValueOf(&v))
|
|
} else {
|
|
v := value.(float64)
|
|
field.Set(reflect.ValueOf(&v))
|
|
}
|
|
}
|
|
} else {
|
|
|
|
if value == nil {
|
|
value = float64(0)
|
|
}
|
|
field.SetFloat(value.(float64))
|
|
}
|
|
}
|
|
case fieldType&IsRelField > 0:
|
|
if value != nil {
|
|
fieldType = fi.relModelInfo.fields.pk.fieldType
|
|
mf := reflect.New(fi.relModelInfo.addrField.Elem().Type())
|
|
field.Set(mf)
|
|
f := mf.Elem().FieldByIndex(fi.relModelInfo.fields.pk.fieldIndex)
|
|
field = f
|
|
goto setValue
|
|
}
|
|
}
|
|
|
|
if !isNative {
|
|
fd := field.Addr().Interface().(Fielder)
|
|
err := fd.SetRaw(value)
|
|
if err != nil {
|
|
err = fmt.Errorf("converted value `%v` set to Fielder `%s` failed, err: %s", value, fi.fullName, err)
|
|
return nil, err
|
|
}
|
|
}
|
|
|
|
return value, nil
|
|
}
|
|
|
|
// query sql, read values , save to *[]ParamList.
|
|
func (d *dbBase) ReadValues(q dbQuerier, qs *querySet, mi *modelInfo, cond *Condition, exprs []string, container interface{}, tz *time.Location) (int64, error) {
|
|
|
|
var (
|
|
maps []Params
|
|
lists []ParamsList
|
|
list ParamsList
|
|
)
|
|
|
|
typ := 0
|
|
switch v := container.(type) {
|
|
case *[]Params:
|
|
d := *v
|
|
if len(d) == 0 {
|
|
maps = d
|
|
}
|
|
typ = 1
|
|
case *[]ParamsList:
|
|
d := *v
|
|
if len(d) == 0 {
|
|
lists = d
|
|
}
|
|
typ = 2
|
|
case *ParamsList:
|
|
d := *v
|
|
if len(d) == 0 {
|
|
list = d
|
|
}
|
|
typ = 3
|
|
default:
|
|
panic(fmt.Errorf("unsupport read values type `%T`", container))
|
|
}
|
|
|
|
tables := newDbTables(mi, d.ins)
|
|
|
|
var (
|
|
cols []string
|
|
infos []*fieldInfo
|
|
)
|
|
|
|
hasExprs := len(exprs) > 0
|
|
|
|
Q := d.ins.TableQuote()
|
|
|
|
if hasExprs {
|
|
cols = make([]string, 0, len(exprs))
|
|
infos = make([]*fieldInfo, 0, len(exprs))
|
|
for _, ex := range exprs {
|
|
index, name, fi, suc := tables.parseExprs(mi, strings.Split(ex, ExprSep))
|
|
if !suc {
|
|
panic(fmt.Errorf("unknown field/column name `%s`", ex))
|
|
}
|
|
cols = append(cols, fmt.Sprintf("%s.%s%s%s %s%s%s", index, Q, fi.column, Q, Q, name, Q))
|
|
infos = append(infos, fi)
|
|
}
|
|
} else {
|
|
cols = make([]string, 0, len(mi.fields.dbcols))
|
|
infos = make([]*fieldInfo, 0, len(exprs))
|
|
for _, fi := range mi.fields.fieldsDB {
|
|
cols = append(cols, fmt.Sprintf("T0.%s%s%s %s%s%s", Q, fi.column, Q, Q, fi.name, Q))
|
|
infos = append(infos, fi)
|
|
}
|
|
}
|
|
|
|
where, args := tables.getCondSQL(cond, false, tz)
|
|
groupBy := tables.getGroupSQL(qs.groups)
|
|
orderBy := tables.getOrderSQL(qs.orders)
|
|
limit := tables.getLimitSQL(mi, qs.offset, qs.limit)
|
|
join := tables.getJoinSQL()
|
|
|
|
sels := strings.Join(cols, ", ")
|
|
|
|
sqlSelect := "SELECT"
|
|
if qs.distinct {
|
|
sqlSelect += " DISTINCT"
|
|
}
|
|
query := fmt.Sprintf("%s %s FROM %s%s%s T0 %s%s%s%s%s", sqlSelect, sels, Q, mi.table, Q, join, where, groupBy, orderBy, limit)
|
|
|
|
d.ins.ReplaceMarks(&query)
|
|
|
|
rs, err := q.Query(query, args...)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
refs := make([]interface{}, len(cols))
|
|
for i := range refs {
|
|
var ref interface{}
|
|
refs[i] = &ref
|
|
}
|
|
|
|
defer rs.Close()
|
|
|
|
var (
|
|
cnt int64
|
|
columns []string
|
|
)
|
|
for rs.Next() {
|
|
if cnt == 0 {
|
|
cols, err := rs.Columns()
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
columns = cols
|
|
}
|
|
|
|
if err := rs.Scan(refs...); err != nil {
|
|
return 0, err
|
|
}
|
|
|
|
switch typ {
|
|
case 1:
|
|
params := make(Params, len(cols))
|
|
for i, ref := range refs {
|
|
fi := infos[i]
|
|
|
|
val := reflect.Indirect(reflect.ValueOf(ref)).Interface()
|
|
|
|
value, err := d.convertValueFromDB(fi, val, tz)
|
|
if err != nil {
|
|
panic(fmt.Errorf("db value convert failed `%v` %s", val, err.Error()))
|
|
}
|
|
|
|
params[columns[i]] = value
|
|
}
|
|
maps = append(maps, params)
|
|
case 2:
|
|
params := make(ParamsList, 0, len(cols))
|
|
for i, ref := range refs {
|
|
fi := infos[i]
|
|
|
|
val := reflect.Indirect(reflect.ValueOf(ref)).Interface()
|
|
|
|
value, err := d.convertValueFromDB(fi, val, tz)
|
|
if err != nil {
|
|
panic(fmt.Errorf("db value convert failed `%v` %s", val, err.Error()))
|
|
}
|
|
|
|
params = append(params, value)
|
|
}
|
|
lists = append(lists, params)
|
|
case 3:
|
|
for i, ref := range refs {
|
|
fi := infos[i]
|
|
|
|
val := reflect.Indirect(reflect.ValueOf(ref)).Interface()
|
|
|
|
value, err := d.convertValueFromDB(fi, val, tz)
|
|
if err != nil {
|
|
panic(fmt.Errorf("db value convert failed `%v` %s", val, err.Error()))
|
|
}
|
|
|
|
list = append(list, value)
|
|
}
|
|
}
|
|
|
|
cnt++
|
|
}
|
|
|
|
switch v := container.(type) {
|
|
case *[]Params:
|
|
*v = maps
|
|
case *[]ParamsList:
|
|
*v = lists
|
|
case *ParamsList:
|
|
*v = list
|
|
}
|
|
|
|
return cnt, nil
|
|
}
|
|
|
|
func (d *dbBase) RowsTo(dbQuerier, *querySet, *modelInfo, *Condition, interface{}, string, string, *time.Location) (int64, error) {
|
|
return 0, nil
|
|
}
|
|
|
|
// flag of update joined record.
|
|
func (d *dbBase) SupportUpdateJoin() bool {
|
|
return true
|
|
}
|
|
|
|
func (d *dbBase) MaxLimit() uint64 {
|
|
return 18446744073709551615
|
|
}
|
|
|
|
// return quote.
|
|
func (d *dbBase) TableQuote() string {
|
|
return "`"
|
|
}
|
|
|
|
// replace value placeholder in parametered sql string.
|
|
func (d *dbBase) ReplaceMarks(query *string) {
|
|
// default use `?` as mark, do nothing
|
|
}
|
|
|
|
// flag of RETURNING sql.
|
|
func (d *dbBase) HasReturningID(*modelInfo, *string) bool {
|
|
return false
|
|
}
|
|
|
|
// sync auto key
|
|
func (d *dbBase) setval(db dbQuerier, mi *modelInfo, autoFields []string) error {
|
|
return nil
|
|
}
|
|
|
|
// convert time from db.
|
|
func (d *dbBase) TimeFromDB(t *time.Time, tz *time.Location) {
|
|
*t = t.In(tz)
|
|
}
|
|
|
|
// convert time to db.
|
|
func (d *dbBase) TimeToDB(t *time.Time, tz *time.Location) {
|
|
*t = t.In(tz)
|
|
}
|
|
|
|
// get database types.
|
|
func (d *dbBase) DbTypes() map[string]string {
|
|
return nil
|
|
}
|
|
|
|
// gt all tables.
|
|
func (d *dbBase) GetTables(db dbQuerier) (map[string]bool, error) {
|
|
tables := make(map[string]bool)
|
|
query := d.ins.ShowTablesQuery()
|
|
rows, err := db.Query(query)
|
|
if err != nil {
|
|
return tables, err
|
|
}
|
|
|
|
defer rows.Close()
|
|
|
|
for rows.Next() {
|
|
var table string
|
|
err := rows.Scan(&table)
|
|
if err != nil {
|
|
return tables, err
|
|
}
|
|
if table != "" {
|
|
tables[table] = true
|
|
}
|
|
}
|
|
|
|
return tables, nil
|
|
}
|
|
|
|
// get all cloumns in table.
|
|
func (d *dbBase) GetColumns(db dbQuerier, table string) (map[string][3]string, error) {
|
|
columns := make(map[string][3]string)
|
|
query := d.ins.ShowColumnsQuery(table)
|
|
rows, err := db.Query(query)
|
|
if err != nil {
|
|
return columns, err
|
|
}
|
|
|
|
defer rows.Close()
|
|
|
|
for rows.Next() {
|
|
var (
|
|
name string
|
|
typ string
|
|
null string
|
|
)
|
|
err := rows.Scan(&name, &typ, &null)
|
|
if err != nil {
|
|
return columns, err
|
|
}
|
|
columns[name] = [3]string{name, typ, null}
|
|
}
|
|
|
|
return columns, nil
|
|
}
|
|
|
|
// not implement.
|
|
func (d *dbBase) OperatorSQL(operator string) string {
|
|
panic(ErrNotImplement)
|
|
}
|
|
|
|
// not implement.
|
|
func (d *dbBase) ShowTablesQuery() string {
|
|
panic(ErrNotImplement)
|
|
}
|
|
|
|
// not implement.
|
|
func (d *dbBase) ShowColumnsQuery(table string) string {
|
|
panic(ErrNotImplement)
|
|
}
|
|
|
|
// not implement.
|
|
func (d *dbBase) IndexExists(dbQuerier, string, string) bool {
|
|
panic(ErrNotImplement)
|
|
}
|