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package com.ruoyi.im.service ;
import com.baomidou.mybatisplus.extension.service.IService ;
import com.ruoyi.im.domain.ImUserBlack ;
public interface ImUserBlackService extends IService < ImUserBlack > {
/**
* 判断 receiver 是否拉黑 sender
* @param receiver 消息接收人
* @param sender 消息发送人
* @return true receiver拉黑sender，
*/
boolean isBlack ( Long receiver , Long sender ) ;
/**
* 拉黑用户
* @param fromUid 操作人（拉黑者）
* @param toUid 被拉黑用户
* @return true成功
*/
boolean blackUser ( Long fromUid , Long toUid ) ;
/**
* 取消拉黑
* @param fromUid 操作人
* @param toUid 被拉黑用户
* @return true成功
*/
boolean unBlackUser ( Long fromUid , Long toUid ) ;
}
