package gorm_test import "testing" type BasePost struct { Id int64 Title string URL string } type HNPost struct { BasePost Upvotes int32 } type EngadgetPost struct { BasePost BasePost `gorm:"embedded"` ImageUrl string } func TestSaveAndQueryEmbeddedStruct(t *testing.T) { DB.Save(&HNPost{BasePost: BasePost{Title: "news"}}) DB.Save(&HNPost{BasePost: BasePost{Title: "hn_news"}}) var news HNPost if err := DB.First(&news, "title = ?", "hn_news").Error; err != nil { t.Errorf("no error should happen when query with embedded struct, but got %v", err) } else if news.Title != "hn_news" { t.Errorf("embedded struct's value should be scanned correctly") } DB.Save(&EngadgetPost{BasePost: BasePost{Title: "engadget_news"}}) var egNews EngadgetPost if err := DB.First(&egNews, "title = ?", "engadget_news").Error; err != nil { t.Errorf("no error should happen when query with embedded struct, but got %v", err) } else if egNews.BasePost.Title != "engadget_news" { t.Errorf("embedded struct's value should be scanned correctly") } if DB.NewScope(&HNPost{}).PrimaryKeyField() == nil { t.Errorf("primary key with embedded struct should works") } }