#check if event already exists
def commit_organisation_events(__organisation, __event):
    #te = type(__event)
    _event =  session.query(Event).filter(Event.ETitle == __event.ETitle).first()
    #check if organisation exists
    _organisation =  session.query(Organisation).filter(Organisation.OName == __organisation.OName).first()

    _organisation_Events = None

    # many to many:
    # if both exist dont create either, but check association. => it's possible that an event is there + organisations is there but the event is created by another organisation
    if ((_event != None) and (_organisation != None)):
        _organisation_Events = session.query(Organisation_Events).filter(and_(Organisation_Events.FK_EID == _event.EID, Organisation_Events.FK_OID == _organisation.OID)).first()
        if (_organisation_Events == None):
            # create only the new association
            _organisation_events = Organisation_Events(event = _event, organisation = _organisation)
            session.add(_organisation_events)
            session.commit()

    else:
        if(_event==None):
            #_event = Event(ETitle=eventName, Edate='20.07.2019', EUrl='www.hallo.de')
            _event = __event
        if(_organisation==None):
             #_organisation = Organisation(OName=organisationName, ODescription='Super Orga')
             _organisation = __organisation
        # create only the new association: missing events and/or organisations will be commited automatically
        _organisation_events = Organisation_Events(event = _event, organisation = _organisation)
        session.add(_organisation_events)
        session.commit()

commit_organisation_events(__organisation, __event, rcolumn, rcolumn_target)



'''eventlist = []
organisationlist = []
organisation_events_list = []

_event1 = Event(ETitle='event1', Edate='20.07.2019', EUrl='www.hallo.de')
eventlist.append(_event1)
_organisation1 = Organisation(OName='Supger GMBH')
organisationlist.append(_organisation1)

organisation_events_list.append(Organisation_Events(event = _event1, organisation = _organisation1))

_event = Event(ETitle='event2', Edate='20.07.2019', EUrl='www.hallo.de')
eventlist.append(_event)
_organisation = Organisation(OName='ok CoKG')
organisationlist.append(_organisation)

organisation_events_list.append(Organisation_Events(event = _event, organisation = _organisation))
organisation_events_list.append(Organisation_Events(event = _event1, organisation = _organisation))
_event1 = Event(ETitle='event2', Edate='20.07.2019', EUrl='www.hallo.de')
_organisation = Organisation(OName='ok CoKG')
organisation_events_list.append(Organisation_Events(event = _event1, organisation = _organisation))

#organisation_events_list.append(Organisation_Events(FK_EID=_event1.EID, FK_OID=_organisation.OID))
# Add a user

#session.add_all(eventlist)
#session.add_all(organisationlist)
session.add_all(organisation_events_list)
session.commit()
'''

 
# Query the user
#our_user = session.query(User).filter_by(name='jesper').first()
#print('\nOur User:')
#print(our_user)
#print('Nick name in hex: {0}'.format(our_user.nickname.encode('utf-8')))