Fixes #1399 - Add Django Admin function to clear course updated dates. (

#1410)

dashboard/admin.py

@@ -70,9 +70,15 @@ def has_add_permission(self, request):
 class CourseAdmin(admin.ModelAdmin):
     inlines = [CourseViewOptionInline, ]
     form = CourseForm
-    list_display = ('canvas_id', 'name', 'term', 'show_grade_counts', 'course_link', '_courseviewoption', 'show_grade_type')
+    list_display = ('canvas_id', 'name', 'term', 'show_grade_counts', 'course_link', '_courseviewoption', 'data_last_updated')
     list_select_related = True
     readonly_fields = ('term', 'data_last_updated',)
+    actions = ['clear_course_updated_dates']
+
+    @admin.action(description='Clear selected last updated values')
+    def clear_course_updated_dates(self, request, queryset):
+        queryset.update(data_last_updated=None)
+        self.message_user(request, "All selected last updated values cleared.")
 
     # Need this method to correctly display the line breaks
     def _courseviewoption(self, obj):

dashboard/migrations/0023_alter_course_data_last_updated.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.2.15 on 2022-09-02 19:43
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('dashboard', '0022_remove_user_sis_id'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='course',
+            name='data_last_updated',
+            field=models.DateTimeField(blank=True, null=True, verbose_name='Data last updated'),
+        ),
+    ]

dashboard/models.py

@@ -205,7 +205,7 @@ class Course(models.Model):
     GRADING_CHOICES = [('Percent', 'Percent'), ('Point', 'Point'), ]
     show_grade_type = models.CharField(verbose_name="Show Grade Type", max_length=255,
                                          choices=GRADING_CHOICES, default='Percent')
-    data_last_updated = models.DateTimeField(verbose_name="Time data for this course was last updated", null=True, blank=True)
+    data_last_updated = models.DateTimeField(verbose_name="Data last updated", null=True, blank=True)
 
     objects = CourseQuerySet().as_manager()