def addSample(self, newSampleName,newSampleRefType=None):
     
     #
     # Imports
     #
     import sys
     import time
     
     #
     # open connection to database
     #
     self.getConnection()
     
     sampleNames = []
     sampleIds = []
     
     #
     # check if any of the fastqs already in database
     #
     data = self.c.execute('SELECT sampleId,sampleName,refType FROM samples').fetchall()
     if data:
         for (sampleId,sampleName,sampleRefType) in data:
             #sampleName = sampleName[0]
             sampleNames.append(sampleName)
             sampleIds.append(sampleId)
         if newSampleName in sampleNames:
             msg = '#ERROR_MSG#'+time.strftime("%Y-%m-%d:%H:%M:%S",time.localtime())+'#'+str(self.analysispipe.masterPid)+'# SampleName must be uniq, there is already a sample with name '+newSampleName+' , exiting.\n'
             self.analysispipe.logfile.write(msg)
             sys.stderr.write(msg)
             sys.exit(1)
 
     
     if sampleIds:  sampleId = max(sampleIds)+1
     else:          sampleId = 0 
     self.analysispipe.logfile.write('#LOGMSG#'+time.strftime("%Y-%m-%d:%H:%M:%S",time.localtime())+'#'+str(self.analysispipe.masterPid)+'# Adding sample '+newSampleName+' to database with id '+str(sampleId)+'.\n')
     values = (sampleId,newSampleName,newSampleRefType)
     self.c.execute('INSERT INTO samples VALUES (?,?,?)', values)
     
     from sample import Sample
     
     sample = Sample(sampleName=newSampleName, sampleId=sampleId,refType=newSampleRefType, analysispipe=self.analysispipe)
     sample.createDirs()
     
     self.commitAndClose()
     
     return 0