serve_template/src/main/java/space/anyi/serve/service/impl/MetaServiceImpl.java

package space.anyi.serve.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import space.anyi.serve.entity.meta.Meta;
import space.anyi.serve.service.MetaService;
import space.anyi.serve.mapper.MetaMapper;
import org.springframework.stereotype.Service;

/**
* @author yangyi
* @description 针对表【meta(元数据表，用于存储键值对形式的配置或扩展属性)】的数据库操作Service实现
* @createDate 2026-06-14 14:33:39
*/
@Service
public class MetaServiceImpl extends ServiceImpl<MetaMapper, Meta>
    implements MetaService{
    public static final Logger log = LoggerFactory.getLogger(MetaServiceImpl.class);
    public final ObjectMapper objectMapper;

    public MetaServiceImpl(ObjectMapper objectMapper) {
        this.objectMapper = objectMapper;
    }

    @Override
    public Boolean updateMeta(String key, Meta meta) {
        try {
            //UpdateWrapper<Meta> updateWrapper = new UpdateWrapper<Meta>().eq("key", key).set("value", objectMapper.writeValueAsString(meta.getValue()));
            //return update(updateWrapper);
            return getBaseMapper().updateValueByKey(key, objectMapper.writeValueAsString(meta.getValue()));
        } catch (JsonProcessingException e) {
            log.error("网站元素对象序列化为JSON失败",e);
            e.printStackTrace();
            throw new RuntimeException(e);
        }
    }

    @Override
    public Boolean updateMetaValue(String key, Object value) {
        try {
            String json = objectMapper.writeValueAsString(value);
            UpdateWrapper<Meta> updateWrapper = new UpdateWrapper<Meta>()
                    .eq("key", key)
                    .set("value", json);
            return update(updateWrapper);
        } catch (JsonProcessingException e) {
            log.error("序列化JSON失败", e);
            throw new RuntimeException(e);
        }
    }

    @Override
    public Meta getMeta(String key) {
        LambdaQueryWrapper<Meta> queryWrapper = new LambdaQueryWrapper<Meta>()
                .eq(Meta::getKey, key);
        return getOne(queryWrapper);
    }
}