19 Author `gorm:"embedded_prefix:user_"` // Embedded struct
23 type EngadgetPost struct {
24 BasePost BasePost `gorm:"embedded"`
25 Author Author `gorm:"embedded;embedded_prefix:author_"` // Embedded struct
29 func TestPrefixColumnNameForEmbeddedStruct(t *testing.T) {
30 dialect := DB.NewScope(&EngadgetPost{}).Dialect()
31 engadgetPostScope := DB.NewScope(&EngadgetPost{})
32 if !dialect.HasColumn(engadgetPostScope.TableName(), "author_id") || !dialect.HasColumn(engadgetPostScope.TableName(), "author_name") || !dialect.HasColumn(engadgetPostScope.TableName(), "author_email") {
33 t.Errorf("should has prefix for embedded columns")
36 if len(engadgetPostScope.PrimaryFields()) != 1 {
37 t.Errorf("should have only one primary field with embedded struct, but got %v", len(engadgetPostScope.PrimaryFields()))
40 hnScope := DB.NewScope(&HNPost{})
41 if !dialect.HasColumn(hnScope.TableName(), "user_id") || !dialect.HasColumn(hnScope.TableName(), "user_name") || !dialect.HasColumn(hnScope.TableName(), "user_email") {
42 t.Errorf("should has prefix for embedded columns")
46 func TestSaveAndQueryEmbeddedStruct(t *testing.T) {
47 DB.Save(&HNPost{BasePost: BasePost{Title: "news"}})
48 DB.Save(&HNPost{BasePost: BasePost{Title: "hn_news"}})
50 if err := DB.First(&news, "title = ?", "hn_news").Error; err != nil {
51 t.Errorf("no error should happen when query with embedded struct, but got %v", err)
52 } else if news.Title != "hn_news" {
53 t.Errorf("embedded struct's value should be scanned correctly")
56 DB.Save(&EngadgetPost{BasePost: BasePost{Title: "engadget_news"}})
57 var egNews EngadgetPost
58 if err := DB.First(&egNews, "title = ?", "engadget_news").Error; err != nil {
59 t.Errorf("no error should happen when query with embedded struct, but got %v", err)
60 } else if egNews.BasePost.Title != "engadget_news" {
61 t.Errorf("embedded struct's value should be scanned correctly")
64 if DB.NewScope(&HNPost{}).PrimaryField() == nil {
65 t.Errorf("primary key with embedded struct should works")
68 for _, field := range DB.NewScope(&HNPost{}).Fields() {
69 if field.Name == "BasePost" {
70 t.Errorf("scope Fields should not contain embedded struct")
75 func TestEmbeddedPointerTypeStruct(t *testing.T) {
81 DB.Create(&HNPost{BasePost: &BasePost{Title: "embedded_pointer_type"}})
84 if err := DB.First(&hnPost, "title = ?", "embedded_pointer_type").Error; err != nil {
85 t.Errorf("No error should happen when find embedded pointer type, but got %v", err)
88 if hnPost.Title != "embedded_pointer_type" {
89 t.Errorf("Should find correct value for embedded pointer type")