package tests_test import ( "testing" . "gorm.io/gorm/tests" ) func TestUpdateHasManyAssociations(t *testing.T) { var user = *GetUser("update-has-many", Config{}) if err := DB.Create(&user).Error; err != nil { t.Fatalf("errors happened when create: %v", err) } user.Pets = []*Pet{{Name: "pet1"}, {Name: "pet2"}} if err := DB.Save(&user).Error; err != nil { t.Fatalf("errors happened when update: %v", err) } var user2 User DB.Preload("Pets").Find(&user2, "id = ?", user.ID) CheckUser(t, user2, user) t.Run("Polymorphic", func(t *testing.T) { var user = *GetUser("update-has-many", Config{}) if err := DB.Create(&user).Error; err != nil { t.Fatalf("errors happened when create: %v", err) } user.Toys = []Toy{{Name: "toy1"}, {Name: "toy2"}} if err := DB.Save(&user).Error; err != nil { t.Fatalf("errors happened when update: %v", err) } var user2 User DB.Preload("Toys").Find(&user2, "id = ?", user.ID) CheckUser(t, user2, user) }) }