Fix TableName for slices

gorm_test.go

@@ -1312,7 +1312,19 @@ func (c Cart) TableName() string {
 func TestTableName(t *testing.T) {
 	db := db.clone()
 	if db.do(Order{}).table() != "orders" {
-		t.Errorf("Order table name should be orders")
+		t.Errorf("Order's table name should be orders")
+	}
+
+	if db.do(&Order{}).table() != "orders" {
+		t.Errorf("&Order's table name should be orders")
+	}
+
+	if db.do([]Order{}).table() != "orders" {
+		t.Errorf("[]Order's table name should be orders")
+	}
+
+	if db.do(&[]Order{}).table() != "orders" {
+		t.Errorf("&[]Order's table name should be orders")
 	}
 
 	db.SingularTable(true)
@@ -1320,9 +1332,33 @@ func TestTableName(t *testing.T) {
 		t.Errorf("Order's singular table name should be order")
 	}
 
+	if db.do(&Order{}).table() != "order" {
+		t.Errorf("&Order's singular table name should be order")
+	}
+
+	if db.do([]Order{}).table() != "order" {
+		t.Errorf("[]Order's singular table name should be order")
+	}
+
+	if db.do(&[]Order{}).table() != "order" {
+		t.Errorf("&[]Order's singular table name should be order")
+	}
+
 	if db.do(&Cart{}).table() != "shopping_cart" {
+		t.Errorf("&Cart's singular table name should be shopping_cart")
+	}
+
+	if db.do(Cart{}).table() != "shopping_cart" {
 		t.Errorf("Cart's singular table name should be shopping_cart")
 	}
+
+	if db.do(&[]Cart{}).table() != "shopping_cart" {
+		t.Errorf("&[]Cart's singular table name should be shopping_cart")
+	}
+
+	if db.do([]Cart{}).table() != "shopping_cart" {
+		t.Errorf("[]Cart's singular table name should be shopping_cart")
+	}
 	db.SingularTable(false)
 }
 

model.go

@@ -214,6 +214,11 @@ func (m *Model) tableName() (str string) {
 	}
 
 	data := m.reflectData()
+
+	if data.Kind() == reflect.Slice {
+		data = reflect.New(data.Type().Elem()).Elem()
+	}
+
 	if fm := data.MethodByName("TableName"); fm.IsValid() {
 		if v := fm.Call([]reflect.Value{}); len(v) > 0 {
 			if result, ok := v[0].Interface().(string); ok {