99 lines
2.0 KiB
Go
99 lines
2.0 KiB
Go
package repositories
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import (
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"encoding/json"
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"time"
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"github.com/pahmiudahgede/senggoldong/config"
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"github.com/pahmiudahgede/senggoldong/domain"
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"golang.org/x/net/context"
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)
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var ctx = context.Background()
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func CreateArticle(article *domain.Article) error {
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err := config.DB.Create(article).Error
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if err != nil {
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return err
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}
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config.RedisClient.Del(ctx, "articles")
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return nil
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}
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func GetArticles() ([]domain.Article, error) {
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var articles []domain.Article
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cachedArticles, err := config.RedisClient.Get(ctx, "articles").Result()
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if err == nil {
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err := json.Unmarshal([]byte(cachedArticles), &articles)
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if err != nil {
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return nil, err
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}
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return articles, nil
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}
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err = config.DB.Find(&articles).Error
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if err != nil {
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return nil, err
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}
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articlesJSON, _ := json.Marshal(articles)
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config.RedisClient.Set(ctx, "articles", articlesJSON, 10*time.Minute)
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return articles, nil
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}
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func GetArticleByID(id string) (domain.Article, error) {
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var article domain.Article
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cachedArticle, err := config.RedisClient.Get(ctx, "article:"+id).Result()
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if err == nil {
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err := json.Unmarshal([]byte(cachedArticle), &article)
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if err != nil {
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return article, err
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}
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return article, nil
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}
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err = config.DB.Where("id = ?", id).First(&article).Error
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if err != nil {
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return article, err
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}
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articleJSON, _ := json.Marshal(article)
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config.RedisClient.Set(ctx, "article:"+id, articleJSON, 10*time.Minute)
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return article, nil
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}
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func UpdateArticle(article *domain.Article) error {
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err := config.DB.Save(article).Error
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if err != nil {
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return err
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}
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config.RedisClient.Del(ctx, "article:"+article.ID)
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config.RedisClient.Del(ctx, "articles")
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return nil
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}
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func DeleteArticle(id string) error {
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var article domain.Article
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err := config.DB.Where("id = ?", id).First(&article).Error
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if err != nil {
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return err
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}
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err = config.DB.Delete(&article).Error
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if err != nil {
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return err
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}
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config.RedisClient.Del(ctx, "article:"+id)
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config.RedisClient.Del(ctx, "articles")
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return nil
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} |