4dkankan-fusion/src/main/java/com/fdkankan/fusion/service/impl/FusionGuideServiceImpl.java

package com.fdkankan.fusion.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.fdkankan.common.constant.ErrorCode;
import com.fdkankan.fusion.entity.FusionGuide;
import com.fdkankan.fusion.exception.BusinessException;
import com.fdkankan.fusion.mapper.IFusionGuideMapper;
import com.fdkankan.fusion.service.IFusionGuideService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.apache.commons.lang3.StringUtils;
import org.springframework.stereotype.Service;

import java.util.List;

/**
 * <p>
 *  服务实现类
 * </p>
 *
 * @author 
 * @since 2022-08-11
 */
@Service
public class FusionGuideServiceImpl extends ServiceImpl<IFusionGuideMapper, FusionGuide> implements IFusionGuideService {

    @Override
    public List<FusionGuide> getAllList(Integer fusionId) {
        LambdaQueryWrapper<FusionGuide> wrapper = new LambdaQueryWrapper<>();
        wrapper.eq(FusionGuide::getFusionId,fusionId);
        wrapper.orderByAsc(FusionGuide::getSort);
        wrapper.orderByAsc(FusionGuide::getCreateTime);
        return this.list(wrapper);
    }

    @Override
    public Long getCountByFusionId(Integer fusionId) {
        LambdaQueryWrapper<FusionGuide> wrapper = new LambdaQueryWrapper<>();
        wrapper.eq(FusionGuide::getFusionId,fusionId);
        return this.count(wrapper);
    }

    @Override
    public FusionGuide add(FusionGuide fusionGuide) {
        if(fusionGuide.getFusionId() == null || StringUtils.isEmpty(fusionGuide.getTitle())
            || StringUtils.isEmpty(fusionGuide.getCover())){
            throw new BusinessException(ErrorCode.MISSING_REQUIRED_PARAMETERS);
        }
        Long count = this.getCountByFusionId(fusionGuide.getFusionId());
        fusionGuide.setSort(count + 1);
        this.save(fusionGuide);
        return fusionGuide;
    }


}