2017-01-03 08:20:28 +00:00
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// Copyright 2016 The Xorm Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package xorm
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import (
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"database/sql"
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2017-08-22 11:39:52 +00:00
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"fmt"
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"reflect"
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"strconv"
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"time"
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2017-01-03 08:20:28 +00:00
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"github.com/go-xorm/core"
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)
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2017-05-02 00:50:33 +00:00
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func (session *Session) query(sqlStr string, paramStr ...interface{}) ([]map[string][]byte, error) {
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2017-01-03 08:20:28 +00:00
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session.queryPreprocess(&sqlStr, paramStr...)
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2017-08-22 11:39:52 +00:00
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if session.isAutoCommit {
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2017-01-03 08:20:28 +00:00
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return session.innerQuery2(sqlStr, paramStr...)
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}
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2017-08-22 11:39:52 +00:00
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return session.txQuery(session.tx, sqlStr, paramStr...)
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2017-01-03 08:20:28 +00:00
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}
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2017-05-02 00:50:33 +00:00
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func (session *Session) txQuery(tx *core.Tx, sqlStr string, params ...interface{}) ([]map[string][]byte, error) {
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2017-01-03 08:20:28 +00:00
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rows, err := tx.Query(sqlStr, params...)
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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return rows2maps(rows)
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}
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func (session *Session) innerQuery(sqlStr string, params ...interface{}) (*core.Stmt, *core.Rows, error) {
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var callback func() (*core.Stmt, *core.Rows, error)
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if session.prepareStmt {
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callback = func() (*core.Stmt, *core.Rows, error) {
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stmt, err := session.doPrepare(sqlStr)
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if err != nil {
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return nil, nil, err
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}
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rows, err := stmt.Query(params...)
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if err != nil {
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return nil, nil, err
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}
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return stmt, rows, nil
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}
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} else {
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callback = func() (*core.Stmt, *core.Rows, error) {
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rows, err := session.DB().Query(sqlStr, params...)
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if err != nil {
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return nil, nil, err
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}
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return nil, rows, err
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}
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}
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stmt, rows, err := session.engine.logSQLQueryTime(sqlStr, params, callback)
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if err != nil {
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return nil, nil, err
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}
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return stmt, rows, nil
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}
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2017-08-22 11:39:52 +00:00
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func rows2maps(rows *core.Rows) (resultsSlice []map[string][]byte, err error) {
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fields, err := rows.Columns()
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if err != nil {
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return nil, err
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}
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for rows.Next() {
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result, err := row2map(rows, fields)
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if err != nil {
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return nil, err
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}
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resultsSlice = append(resultsSlice, result)
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}
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return resultsSlice, nil
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}
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func value2Bytes(rawValue *reflect.Value) (data []byte, err error) {
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var str string
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str, err = reflect2value(rawValue)
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if err != nil {
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return
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}
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data = []byte(str)
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return
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}
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func row2map(rows *core.Rows, fields []string) (resultsMap map[string][]byte, err error) {
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result := make(map[string][]byte)
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scanResultContainers := make([]interface{}, len(fields))
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for i := 0; i < len(fields); i++ {
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var scanResultContainer interface{}
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scanResultContainers[i] = &scanResultContainer
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}
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if err := rows.Scan(scanResultContainers...); err != nil {
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return nil, err
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}
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for ii, key := range fields {
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rawValue := reflect.Indirect(reflect.ValueOf(scanResultContainers[ii]))
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//if row is null then ignore
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if rawValue.Interface() == nil {
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//fmt.Println("ignore ...", key, rawValue)
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continue
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}
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if data, err := value2Bytes(&rawValue); err == nil {
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result[key] = data
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} else {
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return nil, err // !nashtsai! REVIEW, should return err or just error log?
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}
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}
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return result, nil
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}
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2017-01-03 08:20:28 +00:00
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func (session *Session) innerQuery2(sqlStr string, params ...interface{}) ([]map[string][]byte, error) {
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_, rows, err := session.innerQuery(sqlStr, params...)
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if rows != nil {
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defer rows.Close()
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}
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if err != nil {
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return nil, err
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}
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return rows2maps(rows)
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}
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2017-04-07 01:47:25 +00:00
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// Query runs a raw sql and return records as []map[string][]byte
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2017-05-02 00:50:33 +00:00
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func (session *Session) Query(sqlStr string, paramStr ...interface{}) ([]map[string][]byte, error) {
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defer session.resetStatement()
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if session.isAutoClose {
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defer session.Close()
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}
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return session.query(sqlStr, paramStr...)
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}
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2017-08-22 11:39:52 +00:00
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func rows2Strings(rows *core.Rows) (resultsSlice []map[string]string, err error) {
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fields, err := rows.Columns()
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if err != nil {
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return nil, err
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}
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for rows.Next() {
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result, err := row2mapStr(rows, fields)
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if err != nil {
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return nil, err
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}
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resultsSlice = append(resultsSlice, result)
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}
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return resultsSlice, nil
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}
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func reflect2value(rawValue *reflect.Value) (str string, err error) {
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aa := reflect.TypeOf((*rawValue).Interface())
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vv := reflect.ValueOf((*rawValue).Interface())
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switch aa.Kind() {
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case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
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str = strconv.FormatInt(vv.Int(), 10)
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case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
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str = strconv.FormatUint(vv.Uint(), 10)
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case reflect.Float32, reflect.Float64:
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str = strconv.FormatFloat(vv.Float(), 'f', -1, 64)
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case reflect.String:
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str = vv.String()
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case reflect.Array, reflect.Slice:
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switch aa.Elem().Kind() {
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case reflect.Uint8:
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data := rawValue.Interface().([]byte)
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str = string(data)
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default:
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err = fmt.Errorf("Unsupported struct type %v", vv.Type().Name())
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}
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// time type
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case reflect.Struct:
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if aa.ConvertibleTo(core.TimeType) {
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str = vv.Convert(core.TimeType).Interface().(time.Time).Format(time.RFC3339Nano)
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} else {
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err = fmt.Errorf("Unsupported struct type %v", vv.Type().Name())
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}
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case reflect.Bool:
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str = strconv.FormatBool(vv.Bool())
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case reflect.Complex128, reflect.Complex64:
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str = fmt.Sprintf("%v", vv.Complex())
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/* TODO: unsupported types below
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case reflect.Map:
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case reflect.Ptr:
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case reflect.Uintptr:
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case reflect.UnsafePointer:
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case reflect.Chan, reflect.Func, reflect.Interface:
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*/
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default:
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err = fmt.Errorf("Unsupported struct type %v", vv.Type().Name())
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}
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return
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}
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func value2String(rawValue *reflect.Value) (data string, err error) {
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data, err = reflect2value(rawValue)
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if err != nil {
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return
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}
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return
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}
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func row2mapStr(rows *core.Rows, fields []string) (resultsMap map[string]string, err error) {
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result := make(map[string]string)
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scanResultContainers := make([]interface{}, len(fields))
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for i := 0; i < len(fields); i++ {
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var scanResultContainer interface{}
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scanResultContainers[i] = &scanResultContainer
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}
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if err := rows.Scan(scanResultContainers...); err != nil {
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return nil, err
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}
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for ii, key := range fields {
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rawValue := reflect.Indirect(reflect.ValueOf(scanResultContainers[ii]))
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//if row is null then ignore
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if rawValue.Interface() == nil {
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//fmt.Println("ignore ...", key, rawValue)
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continue
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}
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if data, err := value2String(&rawValue); err == nil {
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result[key] = data
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} else {
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return nil, err // !nashtsai! REVIEW, should return err or just error log?
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}
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}
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return result, nil
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}
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func txQuery2(tx *core.Tx, sqlStr string, params ...interface{}) ([]map[string]string, error) {
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rows, err := tx.Query(sqlStr, params...)
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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return rows2Strings(rows)
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}
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func query2(db *core.DB, sqlStr string, params ...interface{}) ([]map[string]string, error) {
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rows, err := db.Query(sqlStr, params...)
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if err != nil {
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return nil, err
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}
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defer rows.Close()
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return rows2Strings(rows)
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}
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2017-04-07 01:47:25 +00:00
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// QueryString runs a raw sql and return records as []map[string]string
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func (session *Session) QueryString(sqlStr string, args ...interface{}) ([]map[string]string, error) {
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defer session.resetStatement()
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if session.isAutoClose {
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defer session.Close()
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}
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2017-05-02 00:50:33 +00:00
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session.queryPreprocess(&sqlStr, args...)
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2017-08-22 11:39:52 +00:00
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if session.isAutoCommit {
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return query2(session.DB(), sqlStr, args...)
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}
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return txQuery2(session.tx, sqlStr, args...)
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}
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// Execute sql
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func (session *Session) innerExec(sqlStr string, args ...interface{}) (sql.Result, error) {
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if session.prepareStmt {
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stmt, err := session.doPrepare(sqlStr)
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if err != nil {
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return nil, err
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}
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res, err := stmt.Exec(args...)
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if err != nil {
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return nil, err
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}
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return res, nil
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}
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return session.DB().Exec(sqlStr, args...)
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}
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func (session *Session) exec(sqlStr string, args ...interface{}) (sql.Result, error) {
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for _, filter := range session.engine.dialect.Filters() {
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// TODO: for table name, it's no need to RefTable
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sqlStr = filter.Do(sqlStr, session.engine.dialect, session.statement.RefTable)
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}
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session.saveLastSQL(sqlStr, args...)
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2017-08-22 11:39:52 +00:00
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return session.engine.logSQLExecutionTime(sqlStr, args, func() (sql.Result, error) {
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if session.isAutoCommit {
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// FIXME: oci8 can not auto commit (github.com/mattn/go-oci8)
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if session.engine.dialect.DBType() == core.ORACLE {
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session.Begin()
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r, err := session.tx.Exec(sqlStr, args...)
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session.Commit()
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return r, err
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}
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return session.innerExec(sqlStr, args...)
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}
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return session.tx.Exec(sqlStr, args...)
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})
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}
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// Exec raw sql
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func (session *Session) Exec(sqlStr string, args ...interface{}) (sql.Result, error) {
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defer session.resetStatement()
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if session.isAutoClose {
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defer session.Close()
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}
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return session.exec(sqlStr, args...)
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}
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