From 5f946161682810df5805ff605cb3ed96a2648398 Mon Sep 17 00:00:00 2001
From: Ross <xkjq@ymail.com>
Date: Sun, 4 May 2025 16:50:56 +0100
Subject: [PATCH] .

---
 atlas/templates/atlas/case_display_block.html |  2 +-
 atlas/templates/atlas/collection_detail.html  |  9 +++--
 .../atlas/linked_cases_overview.html          | 33 +++++++++++++++
 atlas/urls.py                                 |  5 +++
 atlas/views.py                                | 40 ++++++++++++++++++-
 5 files changed, 83 insertions(+), 6 deletions(-)
 create mode 100644 atlas/templates/atlas/linked_cases_overview.html

diff --git a/atlas/templates/atlas/case_display_block.html b/atlas/templates/atlas/case_display_block.html
index 44583711..5e4dda6c 100755
--- a/atlas/templates/atlas/case_display_block.html
+++ b/atlas/templates/atlas/case_display_block.html
@@ -2,7 +2,7 @@
     <h2>Case: {{ case.title }}</h2>
     {% if case.previous_case or case.next_case %}
         <div class="alert alert-info" role="alert">
-            This case is part of a series.<br/>
+            This case is part of a <a href='{% url "atlas:linked_cases_overview" case.pk %}'>series.</a><br/>
             <div class="row">
             {% if case.previous_case %}
                 <div class="col-sm-6 mb-3 mb-sm-0">
diff --git a/atlas/templates/atlas/collection_detail.html b/atlas/templates/atlas/collection_detail.html
index e8425cf2..ed751728 100644
--- a/atlas/templates/atlas/collection_detail.html
+++ b/atlas/templates/atlas/collection_detail.html
@@ -22,16 +22,17 @@
                     (<a href='{% url "atlas:collection_case_details" casedetail.collection.pk casedetail.case.pk %}'>edit questions</a> 
                     &nbsp;
                     {% if casedetail.question_schema %}
-                        <i class="bi bi-question-square text-success"></i>
+                        <i class="bi bi-question-square text-success" title="This case has questions defined."></i>
                     {% else %}
-                        <i class="bi bi-question-square text-danger"></i>
+                        <i class="bi bi-question-square text-danger" title="This case has no questions defined."></i>
                     {% endif %}
-
-                        
                     )
                 {% endif %}
 
+            {% if casedetail.case.previous_case %}
                 (<a href='{% url "atlas:collection_case_priors" casedetail.collection.pk casedetail.case.pk %}'>manage priors</a>)
+            {% endif %}
+
             </li>
 
         {% endfor %}
diff --git a/atlas/templates/atlas/linked_cases_overview.html b/atlas/templates/atlas/linked_cases_overview.html
new file mode 100644
index 00000000..b3b6d3b8
--- /dev/null
+++ b/atlas/templates/atlas/linked_cases_overview.html
@@ -0,0 +1,33 @@
+<!-- filepath: /home/ross/rad/rad/atlas/templates/atlas/linked_cases_overview.html -->
+{% extends "base.html" %}
+
+{% block content %}
+    <h1>Linked Cases Overview</h1>
+    <h2>Current Case: {{ case.title }}</h2>
+
+    <h3>Previous Cases</h3>
+    {% if previous_cases %}
+        <ul>
+            {% for prev_case in previous_cases %}
+                <li>
+                    <a href="{{ prev_case.get_absolute_url }}">{{ prev_case.title }}</a>
+                </li>
+            {% endfor %}
+        </ul>
+    {% else %}
+        <p>No previous cases.</p>
+    {% endif %}
+
+    <h3>Next Cases</h3>
+    {% if next_cases %}
+        <ul>
+            {% for next_case in next_cases %}
+                <li>
+                    <a href="{{ next_case.get_absolute_url }}">{{ next_case.title }}</a>
+                </li>
+            {% endfor %}
+        </ul>
+    {% else %}
+        <p>No next cases.</p>
+    {% endif %}
+{% endblock %}
\ No newline at end of file
diff --git a/atlas/urls.py b/atlas/urls.py
index 3b91f470..a3c51c7b 100755
--- a/atlas/urls.py
+++ b/atlas/urls.py
@@ -462,4 +462,9 @@ urlpatterns = [
         name="pathological_process_detail",
     ),
     path("combine_series/", views.combine_series, name="combine_series"),
+    path(
+        "case/<int:case_id>/linked/",
+        views.linked_cases_overview,
+        name="linked_cases_overview",
+    ),
 ]
diff --git a/atlas/views.py b/atlas/views.py
index 11ef37d3..a8bfdc21 100755
--- a/atlas/views.py
+++ b/atlas/views.py
@@ -906,7 +906,6 @@ class QuestionSchemaDelete(AuthorOrCheckerRequiredMixin, DeleteView):
     model = QuestionSchema
     template_name = "confirm_delete.html"
 
-
 class FindingUpdate(RevisionMixin, LoginRequiredMixin, UpdateView):
     model = Finding
     form_class = FindingForm
@@ -3061,3 +3060,42 @@ def remove_case_from_collection(request, case_pk, collection_pk):
     collection.cases.remove(case)
     
     return HttpResponse(f"Case removed from collection: {collection.name}")
+
+
+def linked_cases_overview(request, case_id):
+    """
+    View to display an overview of linked cases via the previous_case field.
+    """
+    # Get the current case
+    case = get_object_or_404(Case, pk=case_id)
+
+    # Traverse backward to get all previous cases
+    previous_cases = []
+    try:
+        current_case = case.previous_case
+        while current_case:
+            previous_cases.insert(0, current_case)  # Insert at the beginning to maintain order
+            current_case = current_case.previous_case
+    except ObjectDoesNotExist:
+        pass
+
+    # Traverse forward to get all next cases
+    next_cases = []
+    try:
+        current_case = case.next_case
+        while current_case:
+            next_cases.append(current_case)
+            current_case = current_case.next_case
+    except ObjectDoesNotExist:
+        pass
+
+    # Render the template with the linked cases
+    return render(
+        request,
+        "atlas/linked_cases_overview.html",
+        {
+            "case": case,
+            "previous_cases": previous_cases,
+            "next_cases": next_cases,
+        },
+    )
\ No newline at end of file