Exporter for DCHost (allegro#2961)

src/ralph/data_center/admin.py

@@ -563,6 +563,7 @@ class DCHostAdmin(RalphAdmin):
         'service_env__environment',
         'service_env__service',
     ]
+    resource_class = resources.DCHostResource
 
     def has_add_permission(self, request):
         return False

src/ralph/data_importer/resources.py

@@ -10,7 +10,7 @@
     OfficeInfrastructure,
     Warehouse
 )
-from ralph.data_center.models import physical
+from ralph.data_center.models import hosts, physical
 from ralph.data_importer.fields import ThroughField
 from ralph.data_importer.mixins import (
     ImportForeignKeyMeta,
@@ -729,3 +729,25 @@ class ConfigurationClassResource(RalphModelResource):
 
     class Meta:
         model = configuration.ConfigurationClass
+
+
+class DCHostResource(RalphModelResource):
+    hostname = fields.Field(
+        readonly=True,
+        column_name='hostname',
+        attribute='hostname',
+    )
+    service_env = fields.Field(
+        column_name='service_env',
+        attribute='service_env',
+        widget=AssetServiceEnvWidget(assets.ServiceEnvironment, 'name'),
+    )
+    ips = fields.Field(
+        column_name='ip_addresses',
+        attribute='ipaddresses',
+        widget=widgets.ManyToManyWidget(model=networks.IPAddress),
+    )
+
+    class Meta:
+        model = hosts.DCHost
+        exclude = ('parent',)

src/ralph/virtual/models.py

@@ -195,6 +195,11 @@ class Meta:
     def __str__(self):
         return self.hostname
 
+    @property
+    def ipaddresses(self):
+        # NetworkableBaseObject compatibility
+        return IPAddress.objects.filter(ethernet__base_object=self)
+
     @property
     def ip_addresses(self):
         return self.ethernet_set.select_related('ipaddress').values_list(