Add method Raw and Scan

README.md

@@ -818,16 +818,42 @@ db.Debug().Where("name = ?", "jinzhu").First(&User{})
 Row & Rows is not chainable, it works just like `QueryRow` and `Query`
 
 ```go
-row := db.Where("name = ?", "jinzhu").select("name, age").Row() // (*sql.Row)
+row := db.Table("users").Where("name = ?", "jinzhu").select("name, age").Row() // (*sql.Row)
 row.Scan(&name, &age)
 
-rows, err := db.Where("name = ?", "jinzhu").select("name, age, email").Rows() // (*sql.Rows, error)
+rows, err := db.Model(User{}).Where("name = ?", "jinzhu").select("name, age, email").Rows() // (*sql.Rows, error)
 defer rows.Close()
 for rows.Next() {
   ...
   rows.Scan(&name, &age, &email)
   ...
 }
+
+// Rows() with raw sql
+rows, err := db.Raw("select name, age, email from users where name = ?", "jinzhu").Rows() // (*sql.Rows, error)
+defer rows.Close()
+for rows.Next() {
+  ...
+  rows.Scan(&name, &age, &email)
+  ...
+}
+```
+
+## Scan
+
+Scan sql results into strcut
+
+```go
+type Result struct {
+	Name string
+	Age  int
+}
+
+var result Result
+db.Table("users").Select("name, age").Where("name = ?", 3).Scan(&result)
+
+// Scan raw sql
+db.Raw("SELECT name, age FROM users WHERE name = ?", 3).Scan(&result)
 ```
 
 ## Group & Having

do.go

@@ -327,7 +327,11 @@ func (s *Do) delete() *Do {
 }
 
 func (s *Do) prepareQuerySql() {
+	if s.search.raw {
+		s.setSql(strings.TrimLeft(s.combinedSql(), "WHERE "))
+	} else {
 		s.setSql(fmt.Sprintf("SELECT %v FROM %v %v", s.selectSql(), s.table(), s.combinedSql()))
+	}
 	return
 }
 
@@ -398,13 +402,18 @@ func (s *Do) rows() (*sql.Rows, error) {
 	return s.db.db.Query(s.sql, s.sqlVars...)
 }
 
-func (s *Do) query() *Do {
+func (s *Do) query(dests ...interface{}) *Do {
 	defer s.trace(time.Now())
 	var (
 		is_slice  bool
 		dest_type reflect.Type
 	)
-	dest_out := reflect.Indirect(reflect.ValueOf(s.value))
+	var dest_out reflect.Value
+	if len(dests) > 0 {
+		dest_out = reflect.Indirect(reflect.ValueOf(dests[0]))
+	} else {
+		dest_out = reflect.Indirect(reflect.ValueOf(s.value))
+	}
 
 	if dest_out.Kind() == reflect.Slice {
 		is_slice = true

gorm_test.go

@@ -1527,6 +1527,42 @@ func TestRows(t *testing.T) {
 	}
 }
 
+type result struct {
+	Name string
+	Age  int
+}
+
+func TestScan(t *testing.T) {
+	var res result
+	db.Table("users").Select("name, age").Where("name = ?", 3).Scan(&res)
+	if res.Name != "3" {
+		t.Errorf("Scan into struct should works")
+	}
+
+	var ress []result
+	db.Table("users").Select("name, age").Where("name = ?", 3).Scan(&ress)
+	if len(ress) != 2 || ress[0].Name != "3" || ress[1].Name != "3" {
+		t.Errorf("Scan into struct map")
+	}
+}
+
+func TestRaw(t *testing.T) {
+	var ress []result
+	db.Raw("SELECT name, age FROM users WHERE name = ?", 3).Scan(&ress)
+	if len(ress) != 2 || ress[0].Name != "3" || ress[1].Name != "3" {
+		t.Errorf("Raw with scan")
+	}
+
+	rows, _ := db.Raw("select name, age from users where name = ?", 3).Rows()
+	count := 0
+	for rows.Next() {
+		count++
+	}
+	if count != 2 {
+		t.Errorf("Raw with Rows should find two records with name 3")
+	}
+}
+
 func TestGroup(t *testing.T) {
 	rows, err := db.Select("name").Table("users").Group("name").Rows()
 

main.go

@@ -128,6 +128,10 @@ func (s *DB) Rows() (*sql.Rows, error) {
 	return s.do(s.data).rows()
 }
 
+func (s *DB) Scan(dest interface{}) *DB {
+	return s.do(s.data).query(dest).db
+}
+
 func (s *DB) Attrs(attrs ...interface{}) *DB {
 	return s.clone().search.attrs(attrs...).db
 }
@@ -180,6 +184,10 @@ func (s *DB) Delete(value interface{}) *DB {
 	return s.clone().do(value).begin().delete().commit_or_rollback().db
 }
 
+func (s *DB) Raw(sql string, values ...interface{}) *DB {
+	return s.clone().search.setraw(true).where(sql, values...).db
+}
+
 func (s *DB) Exec(sql string, values ...interface{}) *DB {
 	return s.clone().do(nil).raw(sql, values...).exec().db
 }

search.go

@@ -21,6 +21,7 @@ type search struct {
 	groupStr     string
 	tableName    string
 	unscope      bool
+	raw          bool
 }
 
 func (s *search) clone() *search {
@@ -39,6 +40,7 @@ func (s *search) clone() *search {
 		groupStr:     s.groupStr,
 		joinsStr:     s.joinsStr,
 		tableName:    s.tableName,
+		raw:          s.raw,
 	}
 }
 
@@ -110,6 +112,11 @@ func (s *search) joins(query string) *search {
 	return s
 }
 
+func (s *search) setraw(b bool) *search {
+	s.raw = b
+	return s
+}
+
 func (s *search) unscoped() *search {
 	s.unscope = true
 	return s