Improve get bean

convert.go

@@ -462,7 +462,6 @@ func convertAssign(dest, src interface{}, originalLocation *time.Location, conve
 	}
 
 	var sv reflect.Value
-
 	switch d := dest.(type) {
 	case *string:
 		sv = reflect.ValueOf(src)
@@ -496,7 +495,7 @@ func convertAssign(dest, src interface{}, originalLocation *time.Location, conve
 
 func convertAssignV(dpv reflect.Value, src interface{}, originalLocation, convertedLocation *time.Location) error {
 	if dpv.Kind() != reflect.Ptr {
-		return errors.New("destination not a pointer")
+		return fmt.Errorf("destination %s not a pointer", dpv.Kind())
 	}
 	if dpv.IsNil() {
 		return errNilPtr

convert/string.go

@@ -0,0 +1,38 @@
+// Copyright 2021 The Xorm Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package convert
+
+import (
+	"database/sql"
+	"fmt"
+	"strconv"
+)
+
+func ConvertAssignString(v interface{}) (string, error) {
+	switch vv := v.(type) {
+	case *sql.NullString:
+		if vv.Valid {
+			return vv.String, nil
+		}
+		return "", nil
+	case *int64:
+		if vv != nil {
+			return strconv.FormatInt(*vv, 10), nil
+		}
+		return "", nil
+	case *int8:
+		if vv != nil {
+			return strconv.FormatInt(int64(*vv), 10), nil
+		}
+		return "", nil
+	case *sql.RawBytes:
+		if vv != nil && len([]byte(*vv)) > 0 {
+			return string(*vv), nil
+		}
+		return "", nil
+	default:
+		return "", fmt.Errorf("unsupported type: %#v", vv)
+	}
+}

dialects/mysql.go

@@ -671,6 +671,12 @@ func (p *mysqlDriver) Parse(driverName, dataSourceName string) (*URI, error) {
 	return uri, nil
 }
 
+func (b *mysqlDriver) Features() DriverFeatures {
+	return DriverFeatures{
+		SupportNullable: false,
+	}
+}
+
 func (p *mysqlDriver) GenScanResult(colType string) (interface{}, error) {
 	switch colType {
 	case "CHAR", "VARCHAR", "TINYTEXT", "TEXT", "MEDIUMTEXT", "LONGTEXT", "ENUM", "SET":
@@ -698,6 +704,7 @@ func (p *mysqlDriver) GenScanResult(colType string) (interface{}, error) {
 		var r sql.RawBytes
 		return &r, nil
 	default:
+		fmt.Printf("unknow mysql database type: %v\n", colType)
 		var r sql.RawBytes
 		return &r, nil
 	}

dialects/sqlite3.go

@@ -551,6 +551,12 @@ func (p *sqlite3Driver) Parse(driverName, dataSourceName string) (*URI, error) {
 	return &URI{DBType: schemas.SQLITE, DBName: dataSourceName}, nil
 }
 
+func (b *sqlite3Driver) Features() DriverFeatures {
+	return DriverFeatures{
+		SupportNullable: false,
+	}
+}
+
 func (p *sqlite3Driver) GenScanResult(colType string) (interface{}, error) {
 	switch colType {
 	case "TEXT":

engine.go

@@ -82,12 +82,7 @@ func newEngine(driverName, dataSourceName string, dialect dialects.Dialect, db *
 		dataSourceName: dataSourceName,
 		db:             db,
 		logSessionID:   false,
-	}
-
-	if dialect.URI().DBType == schemas.SQLITE {
-		engine.DatabaseTZ = time.UTC
-	} else {
-		engine.DatabaseTZ = time.Local
+		DatabaseTZ:     time.Local,
 	}
 
 	logger := log.NewSimpleLogger(os.Stdout)

session_query.go

@@ -5,19 +5,8 @@
 package xorm
 
 import (
-<<<<<<< HEAD
-=======
-<<<<<<< HEAD
-=======
 	"database/sql"
-	"errors"
->>>>>>> 6e19325 (refactor driver)
-	"fmt"
-	"reflect"
-	"strconv"
-	"time"
 
->>>>>>> 634f82a (refactor driver)
 	"xorm.io/xorm/core"
 )
 
@@ -35,55 +24,6 @@ func (session *Session) Query(sqlOrArgs ...interface{}) ([]map[string][]byte, er
 	return session.queryBytes(sqlStr, args...)
 }
 
-<<<<<<< HEAD
-=======
-func value2String(rawValue *reflect.Value) (str string, err error) {
-	aa := reflect.TypeOf((*rawValue).Interface())
-	vv := reflect.ValueOf((*rawValue).Interface())
-	switch aa.Kind() {
-	case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
-		str = strconv.FormatInt(vv.Int(), 10)
-	case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
-		str = strconv.FormatUint(vv.Uint(), 10)
-	case reflect.Float32, reflect.Float64:
-		str = strconv.FormatFloat(vv.Float(), 'f', -1, 64)
-	case reflect.String:
-		str = vv.String()
-	case reflect.Array, reflect.Slice:
-		switch aa.Elem().Kind() {
-		case reflect.Uint8:
-			data := rawValue.Interface().([]byte)
-			str = string(data)
-			if str == "\x00" {
-				str = "0"
-			}
-		default:
-			err = fmt.Errorf("Unsupported struct type %v", vv.Type().Name())
-		}
-	// time type
-	case reflect.Struct:
-		if aa.ConvertibleTo(schemas.TimeType) {
-			str = vv.Convert(schemas.TimeType).Interface().(time.Time).Format(time.RFC3339Nano)
-		} else {
-			err = fmt.Errorf("Unsupported struct type %v", vv.Type().Name())
-		}
-	case reflect.Bool:
-		str = strconv.FormatBool(vv.Bool())
-	case reflect.Complex128, reflect.Complex64:
-		str = fmt.Sprintf("%v", vv.Complex())
-	/* TODO: unsupported types below
-	   case reflect.Map:
-	   case reflect.Ptr:
-	   case reflect.Uintptr:
-	   case reflect.UnsafePointer:
-	   case reflect.Chan, reflect.Func, reflect.Interface:
-	*/
-	default:
-		err = fmt.Errorf("Unsupported struct type %v", vv.Type().Name())
-	}
-	return
-}
-
 // genRowsScanResults according
 func (session *Session) genRowsScanResults(rows *core.Rows, types []*sql.ColumnType) ([]interface{}, error) {
 	var scanResults = make([]interface{}, len(types))
@@ -97,7 +37,6 @@ func (session *Session) genRowsScanResults(rows *core.Rows, types []*sql.ColumnT
 	return scanResults, nil
 }
 
->>>>>>> 634f82a (refactor driver)
 func (session *Session) rows2Strings(rows *core.Rows) (resultsSlice []map[string]string, err error) {
 	fields, err := rows.Columns()
 	if err != nil {
@@ -107,11 +46,6 @@ func (session *Session) rows2Strings(rows *core.Rows) (resultsSlice []map[string
 	if err != nil {
 		return nil, err
 	}
-	types, err := rows.ColumnTypes()
-	if err != nil {
-		return nil, err
-	}
-
 	for rows.Next() {
 		result, err := row2mapStr(rows, types, fields)
 		if err != nil {