class SocWorkerForm(ModelForm):
    class Meta:
        model = SocWorker
        exclude = ('agency', 'atime')
    def __init__(self, *args, **kwargs):
        self.agency = kwargs.pop('agency')
        super(SocWorkerForm, self).__init__(*args, **kwargs)
        self.fields['department'].queryset = Department.objects.filter(agency=self.agency)
        self.fields['inn'].widget.attrs = {'maxlength' : '12'}
        self.fields['snils'].widget.attrs = {'maxlength' : '11'}
        self.fields['inn'].error_messages['inn'] = 'Test error mess'
    def clean_inn(self):
        inn = self.cleaned_data['inn']
        if inn is not None:
            inn = str(inn)            
            if len(inn)>=1 and len(inn)<10:
                raise forms.ValidationError('inn')
                inn=int(inn)
        return inn

self.fields['inn'].error_messages['inn'] = 'Test error mess' 

@login_required
def socworker_view(request, soc_id=0):
    agency = request.user.get_profile().agency
    socworker = get_object_or_404(SocWorker, pk=soc_id)
    alphabet = socworker.surname[:1]  # первая буква фамилии
   
    if socworker.agency != agency:
        raise Http404
    if request.method == 'POST':
        request.POST.__setitem__('alphabet', alphabet) # т.к. форма под это поле базы данных не выводится
        form = SocWorkerForm(request.POST, request.FILES, agency=agency, instance=socworker)
        if form.is_valid():
            socworker = form.save()
            action = 'success'
            LogRecord(user=request.user.get_profile(), object_url="socworker/%d" % (socworker.id)).save()
        else:
            action = 'errors'
    else:
        action = 'new'
    form = SocWorkerForm(agency=agency, instance=socworker)       
    return render_to_response('socworker.html', 
                                {'agency' : agency,
                                 'department' : socworker.department,
                                 'page'   : 'socworkers',
                                 'form'   : form,
                                 'action' : action,
                                 'soc_id' : soc_id,
                                 'firstname' : socworker.firstname,
								 'surname' : socworker.surname,
								 'fathername' : socworker.fathername,
                                 'alphabet' : alphabet
                                } ,
                                context_instance=RequestContext(request))

            {% if action == "success" %}
            <div class="alert alert-success">
                Данные успешно сохранены
            </div>
            {% elif action == "errors" %}
            <div class="alert alert-error">
                Пожалуйста, исправьте ошибки в заполнении 
            </div>
            {% endif %}

                    {% if form.firstname.errors %}py
                    <div class="control-group error">
                    {% else %}
                    <div class="control-group">
                    {% endif %}

form = SocWorkerForm(agency=agency, instance=socworker)

form = SocWorkerForm(request.POST, agency=agency, instance=socworker)