parther check inn

src/customer/decorators.py

@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 from django.contrib.auth.decorators import user_passes_test
-from django.core.urlresolvers  import reverse
+
 
 def license_required(function=None, redirect_field_name=None, login_url='/my/license/'):
     """

src/customer/helpers.py

@@ -0,0 +1,15 @@
+# -*- coding: utf-8 -*-
+from customer.models import Client
+
+
+def partner_already_exists(user_as_company, partner_inn):
+    """
+
+    :param user_as_company: 
+    :param partner_inn: 
+    :return: 
+    """
+    if Client.objects.filter(company=user_as_company, inn=partner_inn):
+        return True
+    else:
+        return False

src/customer/utils.py

@@ -5,7 +5,6 @@ from django.conf import settings
 from django.core.mail import EmailMessage
 from django.template.loader import render_to_string
 
-
 SUPPORT_EMAIL = getattr(settings, 'SUPPORT_EMAIL')
 
 

src/customer/views/clients_ajax.py

@@ -11,8 +11,8 @@ from django.template.loader import render_to_string
 
 from customer import models, forms
 from docs.models import Invoice, Faktura, AktRabot, AktSverki, Nakladn, Platejka, Dover
-from customer.decorators import license_required
 from customer.utils import raise_if_no_profile
+from customer.helpers import partner_already_exists
 
 
 @login_required
@@ -47,14 +47,28 @@ def clients_add_ajax(request):
     raise_if_no_profile(request)
 
     form_class = forms.ClientForm
-
-    new_client_id = None
     new_client_str = None
     form = form_class(data=request.POST)
 
     new_client_id = None
     html = ''
     if form.is_valid():
+        # check company has in users clients
+        if partner_already_exists(request.user.profile, form.cleaned_data['inn']):
+
+            data = {
+                'success': False,
+                'field_errors': {'inn': []},
+                'form_errors': ['Контрагент с таким ИНН уже существует.'],
+                'reload': False,
+                'id': None,
+                'name': None,
+                'action': 'client-add',
+                'row_html': '',
+            }
+
+            return HttpResponse(json.dumps(data), content_type='application/json')
+        else:
             new_client = form.save(commit=False)
             new_client.company = request.user.profile
             new_client_str = new_client.name
@@ -71,7 +85,6 @@ def clients_add_ajax(request):
         'success': form.is_valid(),
         'field_errors': form.errors, # ошибки полей
         'form_errors': non_field_errors, # ошибки формы
-        #'reload': form.is_valid() and 'reload_on_success' in request.GET
         'reload': False,
         'id': new_client_id,
         'name': new_client_str,