Add a link to the dashboard in the nav bar

It is only showed when ACTIVATE_DASHBOARD
is set to True

CHANGELOG.rst

@@ -20,6 +20,7 @@ This document describes changes between each past release.
 - With admin credentials, one can access every project
 - Add delete and edit project actions in the dashboard
 - Add a new setting to activate the dashboard (ACTIVATE_DASHBOARD)
+- Add a link to the dashboard in the navigation bar when it is activated
 
 ### Removed
 

budget/templates/layout.html

@@ -70,6 +70,9 @@
           {% endif %}
           <li class="nav-item{% if g.lang == "fr" %} active{% endif %}"><a class="nav-link" href="{{ url_for(".change_lang", lang="fr") }}">fr</a></li>
           <li class="nav-item{% if g.lang == "en" %} active{% endif %}"><a class="nav-link" href="{{ url_for(".change_lang", lang="en") }}">en</a></li>
+          {% if g.is_dashboard_activated %}
+          <li class="nav-item{% if request.url_rule.endpoint == "main.dashboard" %} active{% endif %}"><a class="nav-link" href="{{ url_for(".dashboard") }}">{{ _("Dashboard") }}</a></li>
+          {% endif %}
         </ul>
       </div>
     </nav>

budget/web.py

@@ -68,6 +68,14 @@ def add_project_id(endpoint, values):
         values['project_id'] = g.project.id
 
 
+@main.url_value_preprocessor
+def set_is_dashboard_activated(endpoint, values):
+    """Set is_dashboard_activated application wide
+    so this variable can be used in the layout template
+    """
+    g.is_dashboard_activated = current_app.config["ACTIVATE_DASHBOARD"]
+
+
 @main.url_value_preprocessor
 def pull_project(endpoint, values):
     """When a request contains a project_id value, transform it directly