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74 lines
1.7 KiB
74 lines
1.7 KiB
package biz
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import (
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"context"
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"time"
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"github.com/go-kratos/kratos/v2/log"
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)
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type Article struct {
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ID int64
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Title string
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Content string
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CreatedAt time.Time
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UpdatedAt time.Time
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Like int64
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}
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type ArticleRepo interface {
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// db
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ListArticle(ctx context.Context) ([]*Article, error)
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GetArticle(ctx context.Context, id int64) (*Article, error)
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CreateArticle(ctx context.Context, article *Article) error
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UpdateArticle(ctx context.Context, id int64, article *Article) error
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DeleteArticle(ctx context.Context, id int64) error
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// redis
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GetArticleLike(ctx context.Context, id int64) (rv int64, err error)
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IncArticleLike(ctx context.Context, id int64) error
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}
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type ArticleUsecase struct {
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repo ArticleRepo
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}
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func NewArticleUsecase(repo ArticleRepo, logger log.Logger) *ArticleUsecase {
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return &ArticleUsecase{repo: repo}
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}
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func (uc *ArticleUsecase) List(ctx context.Context) (ps []*Article, err error) {
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ps, err = uc.repo.ListArticle(ctx)
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if err != nil {
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return
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}
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return
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}
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func (uc *ArticleUsecase) Get(ctx context.Context, id int64) (p *Article, err error) {
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p, err = uc.repo.GetArticle(ctx, id)
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if err != nil {
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return
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}
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err = uc.repo.IncArticleLike(ctx, id)
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if err != nil {
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return
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}
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p.Like, err = uc.repo.GetArticleLike(ctx, id)
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if err != nil {
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return
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}
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return
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}
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func (uc *ArticleUsecase) Create(ctx context.Context, article *Article) error {
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return uc.repo.CreateArticle(ctx, article)
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}
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func (uc *ArticleUsecase) Update(ctx context.Context, id int64, article *Article) error {
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return uc.repo.UpdateArticle(ctx, id, article)
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}
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func (uc *ArticleUsecase) Delete(ctx context.Context, id int64) error {
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return uc.repo.DeleteArticle(ctx, id)
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}
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