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33
vendor/gorm.io/gorm/callbacks/preload.go
generated
vendored
33
vendor/gorm.io/gorm/callbacks/preload.go
generated
vendored
@@ -75,7 +75,7 @@ func embeddedValues(embeddedRelations *schema.Relationships) []string {
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names := make([]string, 0, len(embeddedRelations.Relations)+len(embeddedRelations.EmbeddedRelations))
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for _, relation := range embeddedRelations.Relations {
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// skip first struct name
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names = append(names, strings.Join(relation.Field.BindNames[1:], "."))
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names = append(names, strings.Join(relation.Field.EmbeddedBindNames[1:], "."))
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}
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for _, relations := range embeddedRelations.EmbeddedRelations {
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names = append(names, embeddedValues(relations)...)
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@@ -121,10 +121,33 @@ func preloadEntryPoint(db *gorm.DB, joins []string, relationships *schema.Relati
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}
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} else if rel := relationships.Relations[name]; rel != nil {
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if joined, nestedJoins := isJoined(name); joined {
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reflectValue := rel.Field.ReflectValueOf(db.Statement.Context, db.Statement.ReflectValue)
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tx := preloadDB(db, reflectValue, reflectValue.Interface())
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if err := preloadEntryPoint(tx, nestedJoins, &tx.Statement.Schema.Relationships, preloadMap[name], associationsConds); err != nil {
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return err
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switch rv := db.Statement.ReflectValue; rv.Kind() {
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case reflect.Slice, reflect.Array:
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if rv.Len() > 0 {
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reflectValue := rel.FieldSchema.MakeSlice().Elem()
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reflectValue.SetLen(rv.Len())
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for i := 0; i < rv.Len(); i++ {
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frv := rel.Field.ReflectValueOf(db.Statement.Context, rv.Index(i))
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if frv.Kind() != reflect.Ptr {
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reflectValue.Index(i).Set(frv.Addr())
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} else {
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reflectValue.Index(i).Set(frv)
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}
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}
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tx := preloadDB(db, reflectValue, reflectValue.Interface())
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if err := preloadEntryPoint(tx, nestedJoins, &tx.Statement.Schema.Relationships, preloadMap[name], associationsConds); err != nil {
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return err
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}
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}
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case reflect.Struct:
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reflectValue := rel.Field.ReflectValueOf(db.Statement.Context, rv)
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tx := preloadDB(db, reflectValue, reflectValue.Interface())
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if err := preloadEntryPoint(tx, nestedJoins, &tx.Statement.Schema.Relationships, preloadMap[name], associationsConds); err != nil {
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return err
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}
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default:
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return gorm.ErrInvalidData
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}
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} else {
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tx := db.Table("").Session(&gorm.Session{Context: db.Statement.Context, SkipHooks: db.Statement.SkipHooks})
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