display count of different installed versions in modules list

scrutiny/projects/models.py

@@ -117,6 +117,13 @@ class Module(models.Model):
         p.wait()
         return stdout
 
+    def get_all_installed_versions(self):
+        versions = set()
+        for service in InstalledService.objects.all():
+            version = self.get_installed_version(service.platform, service.service)
+            if version and version.version.version:
+                versions.add(version.version.version)
+        return versions
 
 class Version(models.Model):
     module = models.ForeignKey('Module')

scrutiny/projects/templates/projects/modules.html

@@ -7,7 +7,12 @@
 {% block content %}
 <ul>
 {% for module in modules %}
-<li>{{ module.name }} : <a href="{{ module.name }}/">deployments</a></li>
+  {% with versions=module.get_all_installed_versions %}
+    {% if versions %}
+    <li>{{ module.name }} : <a href="{{ module.name }}/">deployments</a>
+            ({{versions|length}} versions)</li>
+    {% endif %}
+  {% endwith %}
 {% endfor %}
 </ul>