Add pagination for "my books" display

internal/query/query.go

@@ -56,22 +56,51 @@ type BookUserGet struct {
 	CoverPath string `json:"coverPath"`
 }
 
-func FetchReadUserBook(db *gorm.DB, userId uint) ([]BookUserGet, error) {
-	query := fetchUserBookGet(db, userId)
-	query = query.Where("user_books.read IS TRUE")
+func FetchReadUserBook(db *gorm.DB, userId uint, limit int, offset int) ([]BookUserGet, error) {
 	var books []BookUserGet
+	query := fetchReadUserBookQuery(db, userId)
+	query = query.Limit(limit)
+	query = query.Offset(offset)
 	res := query.Find(&books)
 	return books, res.Error
 }
 
-func FetchWantReadUserBook(db *gorm.DB, userId uint) ([]BookUserGet, error) {
+func FetchReadUserBookCount(db *gorm.DB, userId uint) (int64, error) {
+	query := fetchReadUserBookQuery(db, userId)
+	var count int64
+	res := query.Count(&count)
+	return count, res.Error
+}
+
+func fetchReadUserBookQuery(db *gorm.DB, userId uint) *gorm.DB {
 	query := fetchUserBookGet(db, userId)
-	query = query.Where("user_books.want_read IS TRUE")
+	query = query.Where("user_books.read IS TRUE")
+	return query
+}
+
+func FetchWantReadUserBook(db *gorm.DB, userId uint, limit int, offset int) ([]BookUserGet, error) {
 	var books []BookUserGet
+
+	query := fetchWantReadUserBookQuery(db, userId)
+	query = query.Limit(limit)
+	query = query.Offset(offset)
 	res := query.Find(&books)
 	return books, res.Error
 }
 
+func FetchWantReadUserBookCount(db *gorm.DB, userId uint) (int64, error) {
+	query := fetchWantReadUserBookQuery(db, userId)
+	var count int64
+	res := query.Count(&count)
+	return count, res.Error
+}
+
+func fetchWantReadUserBookQuery(db *gorm.DB, userId uint) *gorm.DB {
+	query := fetchUserBookGet(db, userId)
+	query = query.Where("user_books.want_read IS TRUE")
+	return query
+}
+
 func fetchUserBookGet(db *gorm.DB, userId uint) *gorm.DB {
 	query := db.Model(&model.UserBook{})
 	query = query.Select("books.id, books.title, books.author, user_books.rating, user_books.read, user_books.want_read, " + selectStaticFilesPath())