Function Load

engine/pkg/util/projection/operations.go:12–42

Load reads the values of the fields of the target struct from the accessor.

(target interface{}, accessor Accessor, options LoadOptions)

// Load reads the values of the fields of the target struct from the accessor.
func Load(target interface{}, accessor Accessor, options LoadOptions) error {
	return forEachField(target, func(tag *fieldTag, field reflect.Value) error {
		if !tag.matchesLoad(options) {
			return nil
		}

		accessorValue, err := accessor.Get(FieldGet{
			Path: tag.path, Type: tag.fType,
		})
		if err != nil {
			return err
		}

		if accessorValue == nil {
			field.Set(reflect.Zero(field.Type()))
			return nil
		}

		if tag.isPtr {
			setValue := ptypes.NewPtr(accessorValue)
			if setValue.IsValid() {
				field.Set(setValue)
			}
		} else {
			field.Set(reflect.ValueOf(accessorValue))
		}

		return nil
	},
	)
}

// Store writes the values of the fields of the target struct to the accessor.
// Nil slice and map fields are skipped and do not overwrite existing accessor values.