.

oef/templates/oef/formats_dupe_view.html

@@ -0,0 +1,21 @@
+
+{% extends 'oef/base.html' %}
+
+
+
+{% block content %}
+<h2>Formats</h2>
+
+<ul>
+    
+    {% for dupe in dupes %}
+    {{dupe}}
+        
+    {% endfor %}
+        
+
+</ul>
+    
+    
+{% endblock content %}
+    

oef/templates/oef/formats_view.html

@@ -6,6 +6,7 @@
 {% block content %}
 <h2>Formats</h2>
 <a href="{% url 'oef:format_create' %}">Create a new format</a>
+<a href="{% url 'oef:formats_dupe_view' %}">View dupes</a>
 
 <ul>
 {% for format in formats %}

oef/urls.py

@@ -17,6 +17,9 @@ urlpatterns = [
     path(
         "formats", views.formats_view, name="formats_view"
     ),
+    path(
+        "formats/dupes", views.formats_dupe_view, name="formats_dupe_view"
+    ),
     path(
         "formats/create", views.FormatsCreateView.as_view(), name="format_create"
     ),

oef/views.py

@@ -1,3 +1,4 @@
+from collections import defaultdict
 from dataclasses import dataclass
 from difflib import HtmlDiff, SequenceMatcher
 from django import forms
@@ -141,6 +142,23 @@ def formats_view(request):
     formats = Formats.objects.all()
     return render(request, "oef/formats_view.html", {"formats": formats})
 
+def formats_dupe_view(request):
+    formats = Formats.objects.all()
+
+    format_dict = defaultdict(list)
+
+    dupes = []
+
+    for format in formats:
+        if format.format in format_dict:
+            dupes.append(format)
+        format_dict[format.format].append(format)
+
+    
+        
+
+    return render(request, "oef/formats_dupe_view.html", {"dupes": dupes, "format_dict": format_dict})
+
 
 @user_passes_test(lambda u: u.is_superuser)
 def formats_delete(request, pk):