Admin history changes displays field verbose_name

This should be more readable to website users, in contrast to displaying
the field's name from the code.

Author: ddabble

simple_history/admin.py

@@ -121,8 +121,9 @@ def format_history_delta_change(self, change: ModelChange) -> dict:
         Override this to customize the displayed values in the "Changes" column of
         the object history page.
         """
+        field_meta = self.model._meta.get_field(change.field)
         return {
-            "field": change.field,
+            "field": capfirst(field_meta.verbose_name),
             "old": truncatechars(change.old, self.max_displayed_history_change_chars),
             "new": truncatechars(change.new, self.max_displayed_history_change_chars),
         }

simple_history/templates/simple_history/_object_history_list.html

@@ -46,7 +46,7 @@
             <ul>
               {% for change in action.history_delta_changes %}
                 <li>
-                  <code>{{ change.field }}</code>:
+                  <strong>{{ change.field }}:</strong>
                   {{ change.old }}
                   {# Add some spacing, and prevent having the arrow point to the edge of the page if `new` is wrapped #}
                   &nbsp;&rarr;&nbsp;&nbsp;{{ change.new }}

simple_history/tests/tests/test_admin.py

@@ -98,27 +98,27 @@ def test_history_list_contains_diff_changes(self):
         self.assertContains(response, "Changes")
         # The poll hasn't had any of its fields changed after creation,
         # so these values should not be present
-        self.assertNotContains(response, "question")
+        self.assertNotContains(response, "Question")
         self.assertNotContains(response, "why?")
-        self.assertNotContains(response, "pub_date")
+        self.assertNotContains(response, "Date published")
 
         poll.question = "how?"
         poll.save()
         response = self.client.get(poll_history_url)
-        self.assertContains(response, "question")
+        self.assertContains(response, "Question")
         self.assertContains(response, "why?")
         self.assertContains(response, "how?")
-        self.assertNotContains(response, "pub_date")
+        self.assertNotContains(response, "Date published")
 
         poll.question = "when?"
         poll.pub_date = parse_datetime("2024-04-04 04:04:04")
         poll.save()
         response = self.client.get(poll_history_url)
-        self.assertContains(response, "question")
+        self.assertContains(response, "Question")
         self.assertContains(response, "why?")
         self.assertContains(response, "how?")
         self.assertContains(response, "when?")
-        self.assertContains(response, "pub_date")
+        self.assertContains(response, "Date published")
         self.assertContains(response, "2021-01-01 10:00:00")
         self.assertContains(response, "2024-04-04 04:04:04")
 
@@ -131,7 +131,7 @@ def test_history_list_doesnt_contain_too_long_diff_changes(self):
         poll.save()
 
         response = self.client.get(get_history_url(poll))
-        self.assertContains(response, "question")
+        self.assertContains(response, "Question")
         expected_num_chars = SimpleHistoryAdmin.max_displayed_history_change_chars - 1
         self.assertContains(response, f"{'A' * expected_num_chars}…")
         self.assertContains(response, f"{'B' * expected_num_chars}…")