code: def getPk(self):
  		'''
  			getPk - @see ForeignLinkData.getPk
  		'''
  		if not self.pk or None in self.pk:
  			for i in range( len(self.pk) ):
  				if self.pk[i]:
  					continue
  
  				if self.obj[i] and self.obj[i]._id:
  					self.pk[i] = self.obj[i]._id
  
  		return self.pf getPk(self):
  		'''
  			getPk - @see ForeignLinkData.getPk
  		'''
  		if not self.pk or None in self.pk:
  			for i in range( len(self.pk) ):
  				if self.pk[i]:
  					continue
  
  				if self.obj[i] and self.obj[i]._id:
  					self.pk[i] = self.obj[i]._id
  
  		return self.pk
docs: getPk - @see ForeignLinkData.getPk