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				@ -201,10 +201,8 @@ class Sessions extends RedisModel { 
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				                if (res.length > 0) {//已经存在 
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				                    for (let i in participantArray) { 
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				                        //更新成员 
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				                        Participants.deleteAllUser(sessionId,function(err,res){ 
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				                            Participants.saveParticipantsToMysql(sessionId, participantArray, function (err, update) { 
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				                                handler(null, res[0]); 
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				                            }) 
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				                        Participants.saveParticipantsToMysql(sessionId, participantArray, function (err, update) { 
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				                            handler(null, res[0]); 
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				                        }) 
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				                    } 
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				                } else { 
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