aa7c34cf86
* fix error log when loading issues caused by a xorm bug * upgrade packages * fix fmt * fix Consistency * fix tests
321 lines
7.9 KiB
Go
321 lines
7.9 KiB
Go
// Copyright 2017 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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"fmt"
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"reflect"
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"strconv"
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"strings"
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"time"
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"xorm.io/builder"
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"xorm.io/core"
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)
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func (session *Session) genQuerySQL(sqlOrArgs ...interface{}) (string, []interface{}, error) {
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if len(sqlOrArgs) > 0 {
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return convertSQLOrArgs(sqlOrArgs...)
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}
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if session.statement.RawSQL != "" {
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return session.statement.RawSQL, session.statement.RawParams, nil
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}
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if len(session.statement.TableName()) <= 0 {
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return "", nil, ErrTableNotFound
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}
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var columnStr = session.statement.ColumnStr
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if len(session.statement.selectStr) > 0 {
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columnStr = session.statement.selectStr
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} else {
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if session.statement.JoinStr == "" {
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if columnStr == "" {
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if session.statement.GroupByStr != "" {
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columnStr = session.engine.quoteColumns(session.statement.GroupByStr)
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} else {
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columnStr = session.statement.genColumnStr()
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}
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}
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} else {
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if columnStr == "" {
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if session.statement.GroupByStr != "" {
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columnStr = session.engine.quoteColumns(session.statement.GroupByStr)
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} else {
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columnStr = "*"
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}
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}
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}
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if columnStr == "" {
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columnStr = "*"
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}
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}
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if err := session.statement.processIDParam(); err != nil {
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return "", nil, err
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}
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condSQL, condArgs, err := builder.ToSQL(session.statement.cond)
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if err != nil {
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return "", nil, err
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}
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args := append(session.statement.joinArgs, condArgs...)
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sqlStr, err := session.statement.genSelectSQL(columnStr, condSQL, true, true)
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if err != nil {
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return "", nil, err
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}
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// for mssql and use limit
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qs := strings.Count(sqlStr, "?")
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if len(args)*2 == qs {
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args = append(args, args...)
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}
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return sqlStr, args, nil
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}
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// Query runs a raw sql and return records as []map[string][]byte
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func (session *Session) Query(sqlOrArgs ...interface{}) ([]map[string][]byte, error) {
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if session.isAutoClose {
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defer session.Close()
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}
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sqlStr, args, err := session.genQuerySQL(sqlOrArgs...)
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if err != nil {
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return nil, err
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}
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return session.queryBytes(sqlStr, args...)
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}
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func value2String(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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if str == "\x00" {
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str = "0"
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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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// 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 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 as empty string
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if rawValue.Interface() == nil {
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result[key] = ""
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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
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}
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}
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return result, nil
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}
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func row2sliceStr(rows *core.Rows, fields []string) (results []string, err error) {
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result := make([]string, 0, len(fields))
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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 i := 0; i < len(fields); i++ {
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rawValue := reflect.Indirect(reflect.ValueOf(scanResultContainers[i]))
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// if row is null then as empty string
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if rawValue.Interface() == nil {
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result = append(result, "")
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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 = append(result, data)
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} else {
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return nil, err
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}
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}
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return result, nil
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}
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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 rows2SliceString(rows *core.Rows) (resultsSlice [][]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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record, err := row2sliceStr(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, record)
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}
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return resultsSlice, nil
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}
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// QueryString runs a raw sql and return records as []map[string]string
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func (session *Session) QueryString(sqlOrArgs ...interface{}) ([]map[string]string, error) {
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if session.isAutoClose {
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defer session.Close()
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}
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sqlStr, args, err := session.genQuerySQL(sqlOrArgs...)
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if err != nil {
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return nil, err
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}
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rows, err := session.queryRows(sqlStr, args...)
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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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// QuerySliceString runs a raw sql and return records as [][]string
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func (session *Session) QuerySliceString(sqlOrArgs ...interface{}) ([][]string, error) {
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if session.isAutoClose {
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defer session.Close()
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}
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sqlStr, args, err := session.genQuerySQL(sqlOrArgs...)
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if err != nil {
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return nil, err
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}
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rows, err := session.queryRows(sqlStr, args...)
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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 rows2SliceString(rows)
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}
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func row2mapInterface(rows *core.Rows, fields []string) (resultsMap map[string]interface{}, err error) {
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resultsMap = make(map[string]interface{}, len(fields))
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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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resultsMap[key] = reflect.Indirect(reflect.ValueOf(scanResultContainers[ii])).Interface()
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}
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return
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}
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func rows2Interfaces(rows *core.Rows) (resultsSlice []map[string]interface{}, 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 := row2mapInterface(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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// QueryInterface runs a raw sql and return records as []map[string]interface{}
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func (session *Session) QueryInterface(sqlOrArgs ...interface{}) ([]map[string]interface{}, error) {
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if session.isAutoClose {
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defer session.Close()
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}
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sqlStr, args, err := session.genQuerySQL(sqlOrArgs...)
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if err != nil {
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return nil, err
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}
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rows, err := session.queryRows(sqlStr, args...)
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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 rows2Interfaces(rows)
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}
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