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Update README_CN.md

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Yale 2017-11-09 17:48:17 +08:00 committed by GitHub
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@ -691,7 +691,10 @@ import (
// MovieService主要包括对movie的CRUID（增删改查）操作。
// MovieService主要调用movie 数据仓库的方法。
//
// 下面例子的数据源是从更高级别的组件
// 这样可以用同样的逻辑可以返回不同的数据仓库
// MovieService是一个接口，任何实现的地方等能用，这样替换不同的业务逻辑可以用来测试
// MovieService handles some of the CRUID operations of the movie datamodel.
// It depends on a movie repository for its actions.
// It's here to decouple the data source from the higher level compoments.
@ -705,7 +708,7 @@ type MovieService interface {
UpdatePosterAndGenreByID(id int64, poster string, genre string) (datamodels.Movie, error)
}
// NewMovieService returns the default movie service.
// NewMovieService 返回一个 movie 服务.
func NewMovieService(repo repositories.MovieRepository) MovieService {
return &movieService{
repo: repo,
@ -716,21 +719,22 @@ type movieService struct {
repo repositories.MovieRepository
}
// GetAll returns all movies.
// GetAll 返回所有 movies.
func (s *movieService) GetAll() []datamodels.Movie {
return s.repo.SelectMany(func(_ datamodels.Movie) bool {
return true
}, -1)
}
// GetByID returns a movie based on its id.
// GetByID 是通过id找到movie.
func (s *movieService) GetByID(id int64) (datamodels.Movie, bool) {
return s.repo.Select(func(m datamodels.Movie) bool {
return m.ID == id
})
}
// UpdatePosterAndGenreByID updates a movie's poster and genre.
// UpdatePosterAndGenreByID 更新一个 movie的 poster 和 genre.
func (s *movieService) UpdatePosterAndGenreByID(id int64, poster string, genre string) (datamodels.Movie, error) {
// update the movie and return it.
return s.repo.InsertOrUpdate(datamodels.Movie{
@ -740,9 +744,9 @@ func (s *movieService) UpdatePosterAndGenreByID(id int64, poster string, genre s
})
}
// DeleteByID deletes a movie by its id.
// DeleteByID 通过id删除一个movie
//
// Returns true if deleted otherwise false.
// 返回true表示成功，其它都是失败
func (s *movieService) DeleteByID(id int64) bool {
return s.repo.Delete(func(m datamodels.Movie) bool {
return m.ID == id
@ -750,8 +754,9 @@ func (s *movieService) DeleteByID(id int64) bool {
}
```
#### View Models
#### 视图模型
视图模型处理给客户端看的
There should be the view models, the structure that the client will be able to see.
Example: