Don't build IN condition if value implemented Valuer interface, #3517

statement.go

@@ -299,12 +299,18 @@ func (stmt *Statement) BuildCondition(query interface{}, args ...interface{}) (c
 				reflectValue := reflect.Indirect(reflect.ValueOf(v[key]))
 				switch reflectValue.Kind() {
 				case reflect.Slice, reflect.Array:
+					if _, ok := v[key].(driver.Valuer); ok {
+						conds = append(conds, clause.Eq{Column: key, Value: v[key]})
+					} else if _, ok := v[key].(Valuer); ok {
+						conds = append(conds, clause.Eq{Column: key, Value: v[key]})
+					} else {
 						values := make([]interface{}, reflectValue.Len())
 						for i := 0; i < reflectValue.Len(); i++ {
 							values[i] = reflectValue.Index(i).Interface()
 						}
 
 						conds = append(conds, clause.IN{Column: key, Values: values})
+					}
 				default:
 					conds = append(conds, clause.Eq{Column: key, Value: v[key]})
 				}

tests/query_test.go

@@ -345,6 +345,11 @@ func TestNot(t *testing.T) {
 		t.Fatalf("Build NOT condition, but got %v", result.Statement.SQL.String())
 	}
 
+	result = dryDB.Where(map[string]interface{}{"name": []string{"jinzhu", "jinzhu 2"}}).Find(&User{})
+	if !regexp.MustCompile("SELECT \\* FROM .*users.* WHERE .*name.* IN \\(.+,.+\\)").MatchString(result.Statement.SQL.String()) {
+		t.Fatalf("Build NOT condition, but got %v", result.Statement.SQL.String())
+	}
+
 	result = dryDB.Not("name = ?", "jinzhu").Find(&User{})
 	if !regexp.MustCompile("SELECT \\* FROM .*users.* WHERE NOT.*name.* = .+").MatchString(result.Statement.SQL.String()) {
 		t.Fatalf("Build NOT condition, but got %v", result.Statement.SQL.String())