Mercurial > public > sg101
diff legacy/management/commands/import_old_download_comments.py @ 581:ee87ea74d46b
For Django 1.4, rearranged project structure for new manage.py.
author | Brian Neal <bgneal@gmail.com> |
---|---|
date | Sat, 05 May 2012 17:10:48 -0500 |
parents | gpp/legacy/management/commands/import_old_download_comments.py@4021ea1045f7 |
children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/legacy/management/commands/import_old_download_comments.py Sat May 05 17:10:48 2012 -0500 @@ -0,0 +1,91 @@ +""" +import_old_download_comments.py - For importing download comments from SG101 1.0 +as csv files. + +""" +from __future__ import with_statement +import csv +from datetime import datetime + +from django.core.management.base import LabelCommand, CommandError +from django.contrib.auth.models import User +from django.contrib.contenttypes.models import ContentType + +from downloads.models import Download, VoteRecord +from comments.models import Comment +from legacy.html2md import MarkdownWriter +import legacy.data + + +class Command(LabelCommand): + args = '<filename filename ...>' + help = 'Imports download comments from the old database in CSV format' + md_writer = MarkdownWriter() + + def handle_label(self, filename, **options): + """ + Process each line in the CSV file given by filename by + creating a new object and saving it to the database. + + """ + try: + with open(filename, "rb") as f: + self.reader = csv.DictReader(f) + try: + for row in self.reader: + self.process_row(row) + except csv.Error, e: + raise CommandError("CSV error: %s %s %s" % ( + filename, self.reader.line_num, e)) + + except IOError: + raise CommandError("Could not open file: %s" % filename) + + def process_row(self, row): + """ + Process one row from the CSV file: create an object for the row + and save it in the database. + + """ + dl_id = int(row['ratinglid']) + if dl_id in (1, 2, 3, 4): + return + + try: + dl = Download.objects.get(pk=dl_id) + except Download.DoesNotExist: + return + + try: + user = User.objects.get(username=row['ratinguser']) + except User.DoesNotExist: + old_name = row['ratinguser'].lower() + try: + user = User.objects.get( + username=legacy.data.KNOWN_USERNAME_CHANGES[old_name]) + except (User.DoesNotExist, KeyError): + return + + vote_date = datetime.strptime(row['ratingtimestamp'], "%Y-%m-%d %H:%M:%S") + + comment_text = row['ratingcomments'].decode('latin-1').strip() + if comment_text: + comment = Comment( + content_type=ContentType.objects.get_for_model(dl), + object_id=dl.id, + user=user, + comment=comment_text, + creation_date=vote_date, + ip_address = row['ratinghostname'], + is_public = True, + is_removed = False, + ) + comment.save() + + vr = VoteRecord(download=dl, user=user, vote_date=vote_date) + vr.save() + + def to_markdown(self, s): + self.md_writer.reset() + self.md_writer.feed(s) + return self.md_writer.markdown()