Add getting started self guided help system for missing user setup

mayan/apps/main/__init__.py

@@ -1 +1 @@
-from .classes import FrontPageButton  # NOQA
+from .classes import FrontPageButton, MissingItem  # NOQA

mayan/apps/main/classes.py

@@ -8,3 +8,19 @@ class FrontPageButton(object):
     def __init__(self, link):
         self.link = link
         self.__class__._registry.append(link)
+
+
+class MissingItem(object):
+    _registry = []
+
+    @classmethod
+    def get_all(cls):
+        return cls._registry
+
+    def __init__(self, label, condition, description, view):
+        self.label = label
+        self.condition = condition
+        self.description = description
+        self.view = view
+        self.__class__._registry.append(self)
+

mayan/apps/main/views.py

@@ -9,7 +9,7 @@ from dynamic_search.classes import SearchModel
 from permissions.models import Permission
 
 from .api import diagnostics, tools
-from .classes import FrontPageButton
+from .classes import FrontPageButton, MissingItem
 
 
 def home(request):
@@ -20,6 +20,7 @@ def home(request):
         'query_string': request.GET,
         'hide_links': True,
         'search_results_limit': 100,
+        'missing_list': [item for item in MissingItem.get_all() if item.condition()],
     }
 
     if request.GET: