bookshelfplus/bookshelfplus/src/main/java/plus/bookshelf/Dao/Mapper/UserFavoritesDOMapper.java

package plus.bookshelf.Dao.Mapper;

import plus.bookshelf.Dao.DO.UserFavoritesDO;

public interface UserFavoritesDOMapper {
    /**
     * This method was generated by MyBatis Generator.
     * This method corresponds to the database table user_book_favorites_relation
     *
     * @mbg.generated
     */
    int deleteByPrimaryKey(Integer id);

    /**
     * This method was generated by MyBatis Generator.
     * This method corresponds to the database table user_book_favorites_relation
     *
     * @mbg.generated
     */
    int insert(UserFavoritesDO record);

    /**
     * This method was generated by MyBatis Generator.
     * This method corresponds to the database table user_book_favorites_relation
     *
     * @mbg.generated
     */
    int insertSelective(UserFavoritesDO record);

    /**
     * This method was generated by MyBatis Generator.
     * This method corresponds to the database table user_book_favorites_relation
     *
     * @mbg.generated
     */
    UserFavoritesDO selectByPrimaryKey(Integer id);

    /**
     * This method was generated by MyBatis Generator.
     * This method corresponds to the database table user_book_favorites_relation
     *
     * @mbg.generated
     */
    int updateByPrimaryKeySelective(UserFavoritesDO record);

    /**
     * This method was generated by MyBatis Generator.
     * This method corresponds to the database table user_book_favorites_relation
     *
     * @mbg.generated
     */
    int updateByPrimaryKey(UserFavoritesDO record);

    /**
     * 通过用户id和书籍id删除用户收藏状态
     * @param userId
     * @param bookId
     * @return
     */
    int deleteByUserIdAndBookId(Integer userId, Integer bookId);

    /**
     * 通过用户id和书籍id获取用户收藏状态
     * @param userId
     * @param bookId
     * @return
     */
    UserFavoritesDO selectCountByUserIdAndBookId(Integer userId, Integer bookId);
}