删除

郑永安

2023-06-19 2fcd97552d16718cc7997629fd637a73a5a4483f

 src/main/java/com/gk/firework/Service/ServiceImpl/ProductCategoryServiceImpl.java

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package com.gk.firework.Service.ServiceImpl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.gk.firework.Domain.ProductCategory;
import com.gk.firework.Domain.Utils.StringUtils;
import com.gk.firework.Mapper.ProductCategoryMapper;
import com.gk.firework.Service.ProductCategoryService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

/**
 * @author : jingjy
 * @date : 2021/4/22 9:56
 */
@Service("ProductCategoryService")
public class ProductCategoryServiceImpl extends ServiceImpl<ProductCategoryMapper, ProductCategory> implements ProductCategoryService {
    @Autowired
    private ProductCategoryMapper productCategoryMapper;
    @Override
    public List<ProductCategory> selectAllOrByName(String name) {
        LambdaQueryWrapper<ProductCategory> wrapper = new LambdaQueryWrapper<>();
        if (StringUtils.isNotBlank(name)){
            wrapper.like(ProductCategory::getName, name);
        }
        return productCategoryMapper.selectList(wrapper);
    }

    @Override
    public List<ProductCategory> selectCategoryByType(byte type) {
        LambdaQueryWrapper<ProductCategory> wrapper = new LambdaQueryWrapper<>();
        wrapper.eq(ProductCategory::getType, type);
        return productCategoryMapper.selectList(wrapper);
    }

    @Override
    public List<ProductCategory> selectCategoryByTypeAndName(ProductCategory category) {
        LambdaQueryWrapper<ProductCategory> wrapper = new LambdaQueryWrapper<>();
        wrapper.eq(ProductCategory::getType, category.getType());
        wrapper.eq(ProductCategory::getName, category.getName());
        return productCategoryMapper.selectList(wrapper);
    }

    @Override
    public List<ProductCategory> selectCategoryByMajorType(String major) {
        LambdaQueryWrapper<ProductCategory> wrapper = new LambdaQueryWrapper<>();
        wrapper.eq(ProductCategory::getType, (byte)2);
        wrapper.eq(ProductCategory::getParentname, major);
        wrapper.groupBy(ProductCategory::getName);
        return productCategoryMapper.selectList(wrapper);
    }

    @Override
    public ProductCategory selectCategoryByLevelAndName(String level, String secondaryType) {
        LambdaQueryWrapper<ProductCategory> wrapper = new LambdaQueryWrapper<>();
        wrapper.eq(ProductCategory::getLevel, level);
        wrapper.eq(ProductCategory::getName,secondaryType);
        return productCategoryMapper.selectOne(wrapper);
    }


    //查询是否存在一条数据
    @Override
    public boolean selectOne(String type, String secondaryType, String level) {
       return  productCategoryMapper.countOne(type,secondaryType,level) == 1;
    }
}