python 2.7 - Can't add object to Django's Many-To-Many Field -

i'm trying make app many-to-many field. , write , wont try it. so, started shell , make objects , error.

>>> mzz.controlsorganization.add(org1, org2) traceback (most recent call last):   file "<console>", line 1, in <module>   file "/home/fdobrovolny/virtualenv/first/lib/python2.7/site-packages/django/db/models/fields/related.py", line 848, in __get__ through=self.field.rel.through,   file "/home/fdobrovolny/virtualenv/first/lib/python2.7/site-packages/django/db/models/fields/related.py", line 538, in __init__ (instance, source_field_name)) valueerror: "<mzz: test 1>" needs have value field "mzz" before many-to-many relationship can used. 

mzz class:

class mzz(models.model):     name = models.charfield(max_length=100)     name.short_decription = u'název mzz'     ident = models.charfield(max_length=45, unique=true)     active = models.booleanfield()     active.boolean = true     kind = models.foreignkey(kind)     deliverydate = models.datefield()     stateafterdelivery = models.charfield(max_length=200)     dateofcommissioning = models.datefield()     prescribedparameters = models.charfield(max_length=200)     responsiblestaff = models.foreignkey(user)     dateofmanufacture = models.datefield()     manufacturer = models.foreignkey(organization, related_name='manufacturer')     type = models.charfield(max_length=50)     serialnumber = models.charfield(max_length=80)     frequencyofcontrols = models.foreignkey(controls_frequency)     location = models.charfield(max_length=50)     methodofcontrols = models.charfield(max_length=100)     controlsorganization = models.manytomanyfield(organization, related_name='controlsorganization')     servisorganization = models.manytomanyfield(organization, related_name='servisorganization')  def __unicode__(self):     return self.name' 

organization class:

class organization(models.model):     name = models.charfield(max_length=200)     adress = models.charfield(max_length=200)     telephonenumber = models.charfield(max_length=35)     email = models.emailfield()      def __unicode__(self):         return self.name 

can please me?

you have create mzz object , save() first , add organization.

mzz = mzz()  # create  mzz.save()   # save()  o = organization() o.save()  m.organization.add(o)  # add(o) 

https://docs.djangoproject.com/en/dev/topics/db/examples/many_to_many/