Add model field to /networks/hosts endpoint

JIRA INFRA-414

app/models.py

@@ -821,6 +821,14 @@ class Host(CreatedMixin, db.Model):
                 return True
         return False
 
+    @property
+    def model(self):
+        """Return the model of the first linked item"""
+        try:
+            return utils.format_field(self.items[0].model)
+        except IndexError:
+            return None
+
     def __str__(self):
         return str(self.name)
 
@@ -854,6 +862,7 @@ class Host(CreatedMixin, db.Model):
             {
                 "name": self.name,
                 "device_type": str(self.device_type),
+                "model": self.model,
                 "description": self.description,
                 "items": [str(item) for item in self.items],
                 "interfaces": [str(interface) for interface in self.interfaces],

tests/functional/test_api.py

@@ -1148,6 +1148,24 @@ def test_get_hosts_with_ansible_vars(client, host_factory, readonly_token):
     assert response.json[0]["ansible_vars"] == vars
 
 
+def test_get_hosts_with_model(
+    client, model_factory, item_factory, host_factory, readonly_token
+):
+    host1 = host_factory()
+    model1 = model_factory(name="EX3400")
+    item_factory(model=model1, host_id=host1.id)
+    response = get(client, f"{API_URL}/network/hosts", token=readonly_token)
+    assert response.status_code == 200
+    assert response.json[0]["model"] == "EX3400"
+
+
+def test_get_hosts_with_no_model(client, host_factory, readonly_token):
+    host_factory()
+    response = get(client, f"{API_URL}/network/hosts", token=readonly_token)
+    assert response.status_code == 200
+    assert response.json[0]["model"] is None
+
+
 def test_create_host(client, device_type_factory, user_token):
     device_type = device_type_factory(name="Virtual")
     # check that name and device_type are  mandatory
@@ -1172,6 +1190,7 @@ def test_create_host(client, device_type_factory, user_token):
         "id",
         "name",
         "device_type",
+        "model",
         "description",
         "items",
         "interfaces",

tests/functional/test_models.py

@@ -177,3 +177,10 @@ def test_ansible_groups(ansible_group_factory, host_factory):
     host1.ansible_groups.append(group2)
     assert host1.ansible_groups == [group1, group2]
     assert group2.hosts == [host1]
+
+
+def test_host_model(model_factory, item_factory, host_factory):
+    host1 = host_factory()
+    model1 = model_factory(name="EX3400")
+    item_factory(model=model1, host_id=host1.id)
+    assert host1.model == "EX3400"