Feat/export subscribers

server/apps/newsletter/management/commands/export_subscribers.py

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+import csv
+import os
+from django.core.management.base import BaseCommand
+from django.conf import settings
+from django.utils import timezone
+from apps.newsletter.models import Subscriber  # Correct import path
+
+class Command(BaseCommand):
+    help = 'Export subscribers to a CSV file'
+
+    def handle(self, *args, **kwargs):
+        try:
+            # Define the export directory and ensure it exists
+            export_dir = os.path.join(settings.MEDIA_ROOT, 'exports')
+            os.makedirs(export_dir, exist_ok=True)
+
+            # Define the full path for the CSV file
+            csv_filename = os.path.join(export_dir, 'subscribers_export.csv')
+
+            # Use iterator() for memory efficiency with large datasets
+            subscribers = Subscriber.objects.iterator()
+
+            # Open the CSV file for writing
+            with open(csv_filename, mode='w', newline='') as csv_file:
+                fieldnames = ['email', 'is_active', 'subscribed_at']
+                writer = csv.DictWriter(csv_file, fieldnames=fieldnames)
+
+                # Write the header row
+                writer.writeheader()
+
+                # Write each subscriber's data to the CSV file
+                for subscriber in subscribers:
+                    writer.writerow({
+                        'email': subscriber.email or '',
+                        'is_active': 'Yes' if subscriber.is_active else 'No',
+                        'subscribed_at': timezone.localtime(subscriber.subscribed_at).isoformat() if subscriber.subscribed_at else ''
+                    })
+
+            # Success message
+            self.stdout.write(self.style.SUCCESS(f'Successfully exported subscribers to {csv_filename}'))
+
+        except Exception as e:
+            # Handle errors and log them
+            self.stderr.write(self.style.ERROR(f'Error exporting subscribers: {str(e)}'))
+            raise