manage.py helper function for tag categories

pasapp/management/commands/populatedefaults.py

+from unicodedata import category
+from django.core.management.base import BaseCommand, CommandError
+from pasapp.models import TagCategory
+
+class Command(BaseCommand):
+    help = 'Adds default set of tag categories to the database.'
+
+    # (category, )
+    dataset = [
+        ('Prerequisite Class',), # academic. subject ID/name
+        ('Specialization',), # academic. e.g. "Software Development" or "Databases" 
+        ('Subject',), # personal. e.g. "3D Rendering" or "Games"
+        ('Topic of Interest',), # personal. e.g. "Healthcare Systems" or "Sustainability"
+        ('Method',) # personal. e.g. "User Testing", "Literature Review", "Circuit Design", or "Software Prototyping"
+    ]
+    default_categories = [TagCategory(category=category) for (category,) in dataset]
+
+    def handle(self, *args, **options):
+        succeeded = TagCategory.objects.bulk_create(self.default_categories)
+        if len(succeeded) == 0:
+            self.stdout.write(self.style.NOTICE('No categories created.'))
+        else:
+            output_string = f'Created {len(succeeded)} categories: ' + ', '.join(cat.category for cat in succeeded)
+            self.stdout.write(self.style.SUCCESS(output_string))
\ No newline at end of file