raex_back/src/main/java/com/izouma/nineth/service/MetaBonusSceneService.java

package com.izouma.nineth.service;

import com.alibaba.fastjson.JSONArray;
import com.izouma.nineth.dto.MetaBonusSceneDTO;
import com.izouma.nineth.dto.PageQuery;
import com.izouma.nineth.dto.PageWrapper;
import com.izouma.nineth.repo.MetaBonusSceneRepo;
import lombok.AllArgsConstructor;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Map;

@Service
@AllArgsConstructor
public class MetaBonusSceneService {

    private MetaBonusSceneRepo metaBonusSceneRepo;

    public PageWrapper<MetaBonusSceneDTO> all(PageQuery pageQuery) {
        int page = pageQuery.getPage();
        int size = pageQuery.getSize();
        int start = page * size;
        List<Map<String, String>> map = metaBonusSceneRepo.findByPage(start, size);
        JSONArray jsonArray = new JSONArray();
        jsonArray.addAll(map);
        List<MetaBonusSceneDTO> metaBonusScenes = jsonArray.toJavaList(MetaBonusSceneDTO.class);
        int totalElements = metaBonusSceneRepo.totalElements();
        return new PageWrapper<>(metaBonusScenes, page,
                size, totalElements);
    }
}