add RawMap

main.go

@@ -443,6 +443,41 @@ func (s *DB) Raw(sql string, values ...interface{}) *DB {
 	return s.clone().search.Raw(true).Where(sql, values...).db
 }
 
+// RawMap sql查询返回[]map[string]string类型
+func (s *DB) RawMap(sqlQuery string, sqlValues ...interface{}) (result []map[string]string, err error) {
+	rows, err := s.Raw(sqlQuery, sqlValues...).Rows()
+	if err != nil {
+		return
+	}
+	cols, err := rows.Columns()
+	if err != nil {
+		return
+	}
+	values := make([]sql.RawBytes, len(cols))
+	scanArgs := make([]interface{}, len(values))
+	for i := range values {
+		scanArgs[i] = &values[i]
+	}
+	for rows.Next() {
+		err = rows.Scan(scanArgs...)
+		if err != nil {
+			return
+		}
+		var value string
+		resultC := map[string]string{}
+		for i, col := range values {
+			if col == nil {
+				value = "NULL"
+			} else {
+				value = string(col)
+			}
+			resultC[cols[i]] = value
+		}
+		result = append(result, resultC)
+	}
+	return
+}
+
 // Exec execute raw sql
 func (s *DB) Exec(sql string, values ...interface{}) *DB {
 	scope := s.NewScope(nil)

main_test.go

@@ -11,7 +11,6 @@ import (
 	"testing"
 	"time"
 
-	"github.com/erikstmartin/go-testdb"
 	"github.com/jinzhu/gorm"
 	_ "github.com/jinzhu/gorm/dialects/mssql"
 	_ "github.com/jinzhu/gorm/dialects/mysql"
@@ -511,6 +510,19 @@ func TestRaw(t *testing.T) {
 	}
 }
 
+func TestRawMap(t *testing.T) {
+	user1 := User{Name: "ExecRawSqlUser1", Age: 1, Birthday: parseTime("2000-1-1")}
+	user2 := User{Name: "ExecRawSqlUser2", Age: 10, Birthday: parseTime("2010-1-1")}
+	user3 := User{Name: "ExecRawSqlUser3", Age: 20, Birthday: parseTime("2020-1-1")}
+	DB.Save(&user1).Save(&user2).Save(&user3)
+
+	datas, err := DB.TestRawMap("SELECT name, age FROM users WHERE name = ? or name = ?", user2.Name, user3.Name)
+	if err != nil {
+		t.Errorf("somethings wrong:%s", err.Error())
+		return
+	}
+	fmt.Println("datas:", datas)
+}
 func TestGroup(t *testing.T) {
 	rows, err := DB.Select("name").Table("users").Group("name").Rows()