migration to chi

database/news.go

@@ -0,0 +1,51 @@
+package database
+
+import (
+	"time"
+)
+
+type Post struct {
+	ID        uint16    `json:"id"`
+	Title     string    `json:"title"`
+	ShortPost string    `json:"short_post" db:"short_post"`
+	FullPost  string    `json:"full_post" db:"full_post"`
+	Date      time.Time `json:"date"`
+	AuthorID  uint64    `json:"author_id" db:"author_id" sql:"REFERENCES users(id)"`
+	Author    string    `json:"author"`
+}
+
+func FetchTotalNews() (int, error) {
+	count := 0
+	err := Database.Get(&count, `select count("news") from news;`)
+	return count, err
+}
+func FetchNews(offset, limit int) ([]Post, error) {
+	news := make([]Post, 0)
+	err := Database.Select(&news, "select news.*, u.username as author from news inner join users u on news.author_id = u.id offset $1 limit $2;", offset, limit)
+	return news, err
+}
+func CreatePost(post *Post) (*Post, error) {
+	destPost := new(Post)
+	r, err := Database.NamedQuery("insert into news (title, short_post, full_post, author_id) values (:title, :short_post, :full_post, :author_id) returning *;", post)
+	if err != nil {
+		return nil, err
+	}
+	if r.Next() {
+		err = r.StructScan(destPost)
+	}
+	return destPost, err
+}
+
+func FetchPost(id int) (*Post, error) {
+	post := &Post{}
+	err := Database.Get(post, "select news.*, u.username as author from news inner join users u on news.author_id = u.id where news.id = $1;", id)
+	return post, err
+}
+func UpdatePost(post *Post) error {
+	_, err := Database.NamedExec("update news set title=:title, short_post=:short_post, full_post=:full_post where id=:id;", post)
+	return err
+}
+func DeletePost(id int) error {
+	_, err := Database.Exec("delete from news where id=$1;", id)
+	return err
+}