Change own DbTable implementation for Gorm

internal/database/chapter.go

@@ -1,57 +1,21 @@
 package database
 
-import (
-	"database/sql"
-)
-
 type Chapter struct {
-	Id            int
-	MangaId       int
+	Id            int `gorm:"primary_key;AUTO_INCREMENT"`
 	Url           string
 	Name          string
 	Number        string
 	TimeStampUnix int64
+	MangaId       int
 }
 
 func NewChapter(id int, mangaId int, url string, name string, number string, timeStampUnix int64) Chapter {
 	return Chapter{
 		Id:            id,
-		MangaId:       mangaId,
 		Url:           url,
 		Name:          name,
 		Number:        number,
 		TimeStampUnix: timeStampUnix,
+		MangaId:       mangaId,
 	}
 }
-
-func updateChapter(db *sql.DB, c *Chapter) error {
-	_, err := db.Exec("UPDATE Chapter set Name = ?, Url = ?, Number = ?, TimeStampUnixEpoch = ? where ID = ?", c.Name, c.Url, c.Number, c.TimeStampUnix, c.Id)
-	return err
-}
-
-func insertChapter(db *sql.DB, c *Chapter) error {
-	_, err := db.Exec("INSERT INTO Chapter(ID, MangaID, Url, Name, Number, TimeStampUnixEpoch) VALUES (?, ?, ?, ?, ?, ?)", c.Id, c.MangaId, c.Url, c.Name, c.Number, c.TimeStampUnix)
-	return err
-}
-
-func loadChapters(db *sql.DB) (map[int]Chapter, error) {
-	rows, err := db.Query("SELECT Id, MangaID, Url, Name, Number, TimeStampUnixEpoch FROM Chapter")
-	if err != nil {
-		return nil, err
-	}
-	res := make(map[int]Chapter)
-
-	for rows.Next() {
-		chapter := Chapter{}
-		if err = rows.Scan(&chapter.Id, &chapter.MangaId, &chapter.Url, &chapter.Name, &chapter.Number, &chapter.TimeStampUnix); err != nil {
-			return nil, err
-		}
-		res[chapter.Id] = chapter
-	}
-	return res, err
-}
-
-func deleteChapter(db *sql.DB, key int) error {
-	_, err := db.Exec("DELETE from Chapter where ID = ?", key)
-	return err
-}