package org.dromara.system.mapper;
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import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
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import org.dromara.common.mybatis.core.mapper.BaseMapperPlus;
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import org.dromara.system.domain.SysUserRole;
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import java.util.List;
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/**
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* 用户与角色关联表 数据层
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*
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* @author Lion Li
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*/
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public interface SysUserRoleMapper extends BaseMapperPlus<SysUserRole, SysUserRole> {
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/**
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* 根据角色ID查询关联的用户ID列表
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*
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* @param roleId 角色ID
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* @return 关联到指定角色的用户ID列表
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*/
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default List<Long> selectUserIdsByRoleId(Long roleId) {
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return this.selectObjs(new LambdaQueryWrapper<SysUserRole>()
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.select(SysUserRole::getUserId).eq(SysUserRole::getRoleId, roleId)
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);
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}
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}
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