feat(itam): Add device model

!10 closes #12

app/settings/templates/settings/device_models.html.j2

@@ -0,0 +1,45 @@
+{% extends 'base.html.j2' %}
+
+
+{% block content_header_icon %}{% endblock %}
+
+{% block body %}
+
+<input type="button" value="<< Back to settings" onclick="window.location='{% url 'Settings:Settings' %}';">
+<input type="button" value="New Device Model" onclick="window.location='{% url 'Settings:_device_model_add' %}';">
+<table class="data">
+    <tr>
+        <th>Name</th>
+        <th>Manufacturer</th>
+        <th>Organization</th>
+        <th>&nbsp;</th>
+    </tr>
+    {% for item in list %}
+    <tr>
+        <td><a href="{% url 'Settings:_device_model_view' pk=item.id %}">{{ item.name }}</a></td>
+        <td>{{ item.manufacturer }}</td>
+        <td>{% if item.is_global %}Global{% else %}{{ item.organization }}{% endif %}</td>
+        <td><a href="{% url 'Settings:_device_model_delete' pk=item.id %}">Delete</a></td>
+    </tr>
+    {% endfor %}
+
+</table>
+
+<div class="pagination">
+    <span class="step-links">
+        {% if page_obj.has_previous %}
+            <a href="?page=1">&laquo; first</a>
+            <a href="?page={{ page_obj.previous_page_number }}">previous</a>
+        {% endif %}
+
+        <span class="current">
+            Page {{ page_obj.number }} of {{ page_obj.paginator.num_pages }}.
+        </span>
+
+        {% if page_obj.has_next %}
+            <a href="?page={{ page_obj.next_page_number }}">next</a>
+            <a href="?page={{ page_obj.paginator.num_pages }}">last &raquo;</a>
+        {% endif %}
+    </span>
+</div>
+{% endblock %}

app/settings/templates/settings/home.html.j2

@@ -43,6 +43,7 @@ div#content article h3 {
         <h3>ITAM</h3>
         <ul>
             <li><a href="{% url 'Settings:_device_types' %}">Device Types</a></li>
+            <li><a href="{% url 'Settings:_device_models' %}">Device Models</a></li>
             <li><a href="{% url 'Settings:_software_categories' %}">Software Categories</a></li>
         </ul>
     </article>

app/settings/urls.py

@@ -1,14 +1,19 @@
 from django.urls import path
 
-from .views import home, device_types, manufacturer, software_categories
+from .views import home, device_models, device_types, manufacturer, software_categories
 
-from itam.views import device_type, software_category
+from itam.views import device_type, device_model, software_category
 
 app_name = "Settings"
 urlpatterns = [
 
     path("", home.View.as_view(), name="Settings"),
 
+    path("device_models", device_models.Index.as_view(), name="_device_models"),
+    path("device_model/<int:pk>", device_model.View.as_view(), name="_device_model_view"),
+    path("device_model/add/", device_model.Add.as_view(), name="_device_model_add"),
+    path("device_model/<int:pk>/delete", device_model.Delete.as_view(), name="_device_model_delete"),
+
     path("device_type/", device_types.Index.as_view(), name="_device_types"),
     path("device_type/<int:pk>", device_type.View.as_view(), name="_device_type_view"),
     path("device_type/add/", device_type.Add.as_view(), name="_device_type_add"),

app/settings/views/device_models.py

@@ -0,0 +1,39 @@
+from django.contrib.auth.mixins import PermissionRequiredMixin
+from django.db.models import Q
+from django.views import generic
+
+
+from access.mixin import OrganizationPermission
+from itam.models.device_models import DeviceModel
+
+
+
+class Index(PermissionRequiredMixin, OrganizationPermission, generic.ListView):
+    model = DeviceModel
+
+    permission_required = 'itam.view_devicetype'
+
+    template_name = 'settings/device_models.html.j2'
+
+    context_object_name = "list"
+
+    paginate_by = 10
+
+
+    def get_queryset(self):
+
+        if self.request.user.is_superuser:
+
+            return self.model.objects.filter().order_by('name')
+
+        else:
+
+            return self.model.objects.filter(Q(organization__in=self.user_organizations()) | Q(is_global = True)).order_by('name')
+
+
+    def get_context_data(self, **kwargs):
+        context = super().get_context_data(**kwargs)
+
+        context['content_title'] = 'Device Models'
+
+        return context