HK suggestion for #298: log in link

src/eke.knowledge/src/eke/knowledge/protocols.py

@@ -17,6 +17,7 @@
 from django.db.models.functions import Lower
 from django.http import HttpRequest
 from django.template.loader import render_to_string
+from django.urls import reverse
 from django.utils.text import slugify
 from django_plotly_dash import DjangoDash
 from modelcluster.fields import ParentalManyToManyField
@@ -147,6 +148,12 @@ class RDFMeta:
             str(rdflib.DCTERMS.description): _ComplexDescriptionRDFAttribute('description', scalar=True),
             esu('protocolType'): RDFAttribute('kind', scalar=True)
         }
+    def _authentication(self, request: HttpRequest) -> dict:
+        '''Given a request, determine if the user is authenticated and what the login link would be if not.'''
+        params = {'authenticated': request.user.is_authenticated}
+        if not params['authenticated']:
+            params['login'] = reverse('wagtailcore_login') + '?next=' + request.path
+        return params
     def get_context(self, request: HttpRequest, *args, **kwargs) -> dict:
         '''Get the context for the page template.'''
         context = super().get_context(request, args, kwargs)
@@ -158,6 +165,8 @@ def get_context(self, request: HttpRequest, *args, **kwargs) -> dict:
         total_collections = dcs.count()
         dcs = filter_by_user(dcs, request.user)
         invisible_collections = total_collections - dcs.count()
+        if invisible_collections:
+            context.update(self._authentication(request))
         context['data_collections'] = dcs
         context['invisible_collections'] = invisible_collections
         from eke.biomarkers.biomarker import Biomarker

src/eke.knowledge/src/eke/knowledge/templates/eke.knowledge/protocol.html

@@ -80,10 +80,22 @@ <h2>Data Collections</h2>
                         {% endfor %}
                     </ul>
                 {% endif %}
-                {% if invisible_collections == 1 %}
-                    <p class='small'>There is one collection of data that has not yet been made public.</p>
-                {% elif invisible_collections > 1 %}
-                    <p class='small'>There are {{invisible_collections}} collections of data that have not yet been made public.</p>
+                {% if invisible_collections %}
+                    <p class='small'>
+                        {% if invisible_collections == 1 %}
+                            There is one collection of data that has not yet been made public.
+                        {% elif invisible_collections > 1 %}
+                            There are {{invisible_collections}} collections of data that have not yet been made public.
+                        {% endif %}
+                        {% if authenticated %}
+                            You are currently logged in, but not with an account that can view the names of the
+                            non-public data collections.
+                            <a href='{{login}}'>Logging in with a different account</a> may give you access.
+                        {% else %}
+                            <a href='{{login}}'>Logging in</a> may you give you access to the names of the
+                            non-public data collections.
+                        {% endif %}
+                    </p>
                 {% endif %}
             {% else %}
                 <ul>