package com.boying.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.boying.entity.Park;
import com.boying.entity.Ticket;
import com.boying.mapper.ParkMapper;
import com.boying.mapper.TicketMapper;
import com.boying.service.ParkService;
import com.boying.service.TicketService;
import lombok.AllArgsConstructor;
import org.springframework.stereotype.Service;

import java.util.Map;

/**
 * @author kdq
 * @version 1.0.0
 * @ClassName ParkServiceImpl.java
 * @Description TODO
 * @createTime 2022年11月20日 10:35:00
 */
@Service
@AllArgsConstructor
public class ParkServiceImpl extends ServiceImpl<ParkMapper, Park> implements ParkService {
    private final ParkMapper parkMapper;
    @Override
    public int count1() {
        QueryWrapper<Park> wrapper = new QueryWrapper<>();
        wrapper.select("IFNULL(SUM(num),0) as num");
        Map<String, Object> map = getMap(wrapper);
        Integer sum = (Integer)map.get("sum");
        if(sum==null){
            return 0;
        }else{
            return sum.intValue();
        }
    }
}