Don't error out if it is not possible to check for the latest current version.

Signed-off-by: Roberto Rosario <roberto.rosario.gonzalez@gmail.com>

mayan/apps/common/exceptions.py

@@ -16,6 +16,12 @@ class NotLatestVersion(BaseCommonException):
         self.upstream_version = upstream_version
 
 
+class UnknownLatestVersion(BaseCommonException):
+    """
+    It is not possible to determine what is the latest upstream version.
+    """
+
+
 class NPMException(BaseCommonException):
     """Base exception for the NPM registry client"""
 

mayan/apps/common/templatetags/common_tags.py

@@ -4,7 +4,6 @@ from json import dumps
 
 import sh
 
-from django.conf import settings
 from django.template import Context, Library
 from django.template.loader import get_template
 from django.utils.encoding import force_text
@@ -84,4 +83,3 @@ def render_subtemplate(context, template_name, template_context):
     new_context = Context(context.flatten())
     new_context.update(Context(template_context))
     return get_template(template_name).render(new_context.flatten())
-

mayan/apps/common/utils.py

@@ -19,7 +19,7 @@ from django.utils.six.moves import reduce as reduce_function, xmlrpc_client
 from common.compat import dict_type, dictionary_type
 import mayan
 
-from .exceptions import NotLatestVersion
+from .exceptions import NotLatestVersion, UnknownLatestVersion
 from .literals import DJANGO_SQLITE_BACKEND, MAYAN_PYPI_NAME, PYPI_URL
 from .settings import setting_temporary_directory
 
@@ -33,11 +33,11 @@ def check_for_sqlite():
 def check_version():
     pypi = xmlrpc_client.ServerProxy(PYPI_URL)
     versions = pypi.package_releases(MAYAN_PYPI_NAME)
-
-    if versions[0] != mayan.__version__:
-        raise NotLatestVersion(upstream_version=versions[0])
+    if not versions:
+        raise UnknownLatestVersion
     else:
-        return True
+        if versions[0] != mayan.__version__:
+            raise NotLatestVersion(upstream_version=versions[0])
 
 
 # http://stackoverflow.com/questions/123198/how-do-i-copy-a-file-in-python

mayan/apps/common/views.py

@@ -16,7 +16,7 @@ from django.views.generic import RedirectView, TemplateView
 
 from acls.models import AccessControlList
 
-from .exceptions import NotLatestVersion
+from .exceptions import NotLatestVersion, UnknownLatestVersion
 from .forms import (
     LicenseForm, LocaleProfileForm, LocaleProfileForm_view,
     PackagesLicensesForm, UserForm, UserForm_view
@@ -49,6 +49,11 @@ class CheckVersionView(SimpleView):
                 'The version you are using is outdated. The latest version '
                 'is %s'
             ) % exception.upstream_version
+        except UnknownLatestVersion as exception:
+            message = _(
+                'It is not possible to determine the latest version '
+                'available.'
+            )
         else:
             message = _('Your version is up-to-date.')
 
@@ -145,7 +150,10 @@ class FaviconRedirectView(RedirectView):
         return static('appearance/images/favicon.ico')
 
 
-class HomeView(TemplateView):
+class HomeView(SimpleView):
+    extra_context = {
+        'title': _('Dashboard'),
+    }
     template_name = 'appearance/home.html'