package com.moral.api.service.impl; 
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import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper; 
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import com.moral.api.entity.Organization; 
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import com.moral.api.mapper.OrganizationMapper; 
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import com.moral.api.service.OrganizationService; 
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import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl; 
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import com.moral.constant.Constants; 
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import org.springframework.beans.factory.annotation.Autowired; 
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import org.springframework.stereotype.Service; 
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import org.springframework.util.ObjectUtils; 
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import java.util.ArrayList; 
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import java.util.List; 
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/** 
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 * <p> 
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 * 组织表 服务实现类 
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 * </p> 
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 * 
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 * @author moral 
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 * @since 2021-04-06 
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 */ 
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@Service 
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public class OrganizationServiceImpl extends ServiceImpl<OrganizationMapper, Organization> implements OrganizationService { 
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    @Autowired 
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    OrganizationMapper organizationMapper; 
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    @Override 
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    public List<Organization> getChildrenOrganizationsById(Integer id) { 
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        List<Organization> childrenOrganization = new ArrayList<>(); 
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        recursionQueryChildren(id,childrenOrganization); 
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        return childrenOrganization; 
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    } 
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    @Override 
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    public Organization getOrganizationById(Integer id) { 
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        return organizationMapper.selectById(id); 
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    } 
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    /** 
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    * @Description: 通过父组织查询下面所有的子组织放到children中 
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            * @Param: [parentId, children] 
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            * @return: void 
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            * @Author: 陈凯裕 
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            * @Date: 2021/7/1 
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            */ 
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    private void recursionQueryChildren(Integer parentId, List<Organization> children) { 
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        QueryWrapper<Organization> queryWrapper = new QueryWrapper(); 
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        queryWrapper.select("id"); 
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        queryWrapper.eq("is_delete", Constants.NOT_DELETE); 
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        queryWrapper.eq("parent_id", parentId); 
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        List<Organization> organizations = organizationMapper.selectList(queryWrapper); 
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        if (!ObjectUtils.isEmpty(organizations)) { 
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            children.addAll(organizations); 
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            for (Organization organization : organizations) { 
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                recursionQueryChildren(organization.getId(), children); 
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            } 
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        } else { 
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            return; 
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        } 
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    } 
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} 
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