add a button to create a customer

customers/templates/customers/customer_create.html

@@ -0,0 +1,14 @@
+{% extends "core/base.html" %}
+{% load crispy_forms_tags %}
+
+{% block section_title %}Create Customer{% endblock %}
+{% block content %}
+<div class="row">
+<form method="post">
+    {% csrf_token %}
+    {{ form|crispy }}
+    <input type="submit" value="Save" class="btn btn-primary">
+    <a href="{% url 'customers' %}" class="btn btn-secondary">Cancel</a>
+</form>
+</div>
+{% endblock %}

customers/templates/customers/customer_list.html

@@ -2,5 +2,19 @@
 {% load render_table from django_tables2 %}
 {% block section_title %}List of Customers{% endblock %}
 {% block content %}
-{% render_table customers %}
+{% if request.user.is_superuser %}
+<div class="row mb-3">
+    <div class="col">
+        <form action="{% url 'customer_create' %}">
+            <input type="submit" value="Add Customer" class="btn btn-primary">
+        </form>
+    </div>
+</div>
+{% endif %}
+<div class="row">
+    <div class="col">
+        {% render_table customers %}
+    </div>
+</div>
+
 {% endblock %}

customers/tests/test_customer_form.py

@@ -0,0 +1,16 @@
+from django.test import Client
+
+import pytest
+
+
+pytestmark = pytest.mark.django_db
+
+
+def test_customer_create_view(create_admin_user):
+    create_admin_user()
+    data = {'name': 'Big Pharma',
+            'description': 'Some text.'}
+    client = Client()
+    client.login(username="pharma-admin", password="password")
+    response = client.post('/create/customer/', data)
+    assert response.status_code == 302

customers/urls.py

@@ -6,4 +6,7 @@ urlpatterns = [
     path('', views.customers_table_view, name='customers'),
     path('customer/<int:pk>/', views.CustomerDetailView.as_view(),
          name='customer'),
+    path('create/customer/',
+         views.CustomerCreateView.as_view(),
+         name='customer_create'),
  ]

customers/views.py

@@ -1,6 +1,8 @@
 from django.contrib.auth.decorators import login_required
 from django.contrib.auth.mixins import LoginRequiredMixin
 from django.shortcuts import render
+from django.urls import reverse
+from django.views.generic import CreateView
 from django.views.generic import DetailView
 
 from django_tables2 import RequestConfig
@@ -26,3 +28,15 @@ class CustomerDetailView(LoginRequiredMixin,
     model = Customer
     template_name = 'customers/customer_details.html'
     permission_required = 'view_customer'
+
+
+class CustomerCreateView(LoginRequiredMixin, CreateView):
+    """
+    A view to create a customer.
+    """
+    model = Customer
+    template_name = 'customers/customer_create.html'
+    fields = '__all__'
+
+    def get_success_url(self):
+        return reverse('customer', args=(self.object.pk,))