annotate legacy/management/commands/import_old_topics.py @ 887:9a15f7c27526

Actually save model object upon change. This commit was tested on the comments model. Additional logging added. Added check for Markdown image references. Added TODOs after observing behavior on comments.
author Brian Neal <bgneal@gmail.com>
date Tue, 03 Feb 2015 21:09:44 -0600
parents ee87ea74d46b
children
rev   line source
bgneal@294 1 """
bgneal@294 2 import_old_topics.py - For importing forum topics (threads) from SG101 1.0 as
bgneal@294 3 csv files.
bgneal@294 4
bgneal@294 5 """
bgneal@294 6 from __future__ import with_statement
bgneal@294 7 import csv
bgneal@294 8 import optparse
bgneal@294 9 import sys
bgneal@294 10 from datetime import datetime
bgneal@294 11
bgneal@294 12 from django.core.management.base import LabelCommand, CommandError
bgneal@294 13 from django.contrib.auth.models import User
bgneal@294 14
bgneal@294 15 from forums.models import Forum, Topic
bgneal@294 16 from legacy.phpbb import unescape
bgneal@294 17
bgneal@294 18
bgneal@294 19 class Command(LabelCommand):
bgneal@294 20 args = '<filename filename ...>'
bgneal@294 21 help = 'Imports forum topics from the old database in CSV format'
bgneal@294 22 option_list = LabelCommand.option_list + (
bgneal@294 23 optparse.make_option("-p", "--progress", action="store_true",
bgneal@294 24 help="Output a . after every 20 topics to show progress"),
bgneal@294 25 )
bgneal@294 26
bgneal@294 27 def handle_label(self, filename, **options):
bgneal@294 28 """
bgneal@294 29 Process each line in the CSV file given by filename by
bgneal@294 30 creating a new topic.
bgneal@294 31
bgneal@294 32 """
bgneal@294 33 self.show_progress = options.get('progress')
bgneal@294 34 self.users = {}
bgneal@294 35
bgneal@294 36 # Create a mapping from the old database's forums to our
bgneal@294 37 # forums
bgneal@294 38 self.forums = {}
bgneal@294 39 try:
bgneal@294 40 self.forums[2] = Forum.objects.get(slug='suggestion-box')
bgneal@294 41 self.forums[3] = Forum.objects.get(slug='surf-music')
bgneal@294 42 self.forums[4] = Forum.objects.get(slug='surf-musician')
bgneal@294 43 self.forums[5] = Forum.objects.get(slug='gear')
bgneal@294 44 self.forums[6] = Forum.objects.get(slug='recording-corner')
bgneal@294 45 self.forums[7] = Forum.objects.get(slug='shallow-end')
bgneal@294 46 self.forums[8] = Forum.objects.get(slug='surfguitar101-website')
bgneal@294 47 self.forums[9] = Forum.objects.get(id=15)
bgneal@294 48 self.forums[10] = Forum.objects.get(slug='for-sale-trade')
bgneal@294 49 self.forums[11] = Forum.objects.get(slug='musicians-gigs-wanted')
bgneal@294 50 self.forums[12] = Forum.objects.get(slug='surf-videos')
bgneal@294 51 self.forums[13] = Forum.objects.get(slug='sg101-podcast')
bgneal@294 52 self.forums[14] = Forum.objects.get(slug='gigs')
bgneal@294 53 self.forums[15] = Forum.objects.get(slug='music-reviews')
bgneal@294 54 self.forums[18] = Forum.objects.get(slug='best-sg101')
bgneal@294 55 except Forum.DoesNotExist:
bgneal@294 56 sys.exit("Forum does not exist; check forum mapping.")
bgneal@294 57
bgneal@294 58 try:
bgneal@294 59 with open(filename, "rb") as f:
bgneal@294 60 self.reader = csv.DictReader(f)
bgneal@294 61 num_rows = 0
bgneal@294 62 try:
bgneal@294 63 for row in self.reader:
bgneal@294 64 self.process_row(row)
bgneal@294 65 num_rows += 1
bgneal@294 66 if self.show_progress and num_rows % 20 == 0:
bgneal@294 67 sys.stdout.write('.')
bgneal@294 68 sys.stdout.flush()
bgneal@294 69 except csv.Error, e:
bgneal@294 70 raise CommandError("CSV error: %s %s %s" % (
bgneal@294 71 filename, self.reader.line_num, e))
bgneal@294 72
bgneal@294 73 print
bgneal@294 74
bgneal@294 75 except IOError:
bgneal@294 76 raise CommandError("Could not open file: %s" % filename)
bgneal@294 77
bgneal@294 78 def process_row(self, row):
bgneal@294 79 """
bgneal@294 80 Process one row from the CSV file: create a Story object for
bgneal@294 81 the row and save it in the database.
bgneal@294 82
bgneal@294 83 """
bgneal@294 84 row = dict((k, v if v != 'NULL' else '') for k, v in row.iteritems())
bgneal@294 85
bgneal@294 86 if row['topic_moved_id'] != '0':
bgneal@294 87 return
bgneal@294 88
bgneal@294 89 try:
bgneal@294 90 user = User.objects.get(id=int(row['topic_poster']))
bgneal@294 91 except User.DoesNotExist:
bgneal@294 92 print "Could not find user %s for topic %s; skipping." % (
bgneal@294 93 row['topic_poster'], row['topic_id'])
bgneal@294 94 return
bgneal@294 95
bgneal@294 96 creation_date = datetime.fromtimestamp(float(row['topic_time']))
bgneal@294 97
bgneal@294 98 title = row['topic_title'].decode('latin-1', 'replace')
bgneal@294 99
bgneal@294 100 try:
bgneal@294 101 forum = self.forums[int(row['forum_id'])]
bgneal@294 102 except KeyError:
bgneal@294 103 print 'skipping topic "%s"' % title
bgneal@294 104 return
bgneal@294 105
bgneal@294 106 topic = Topic(id=int(row['topic_id']),
bgneal@294 107 forum=forum,
bgneal@294 108 name=unescape(title),
bgneal@294 109 creation_date=creation_date,
bgneal@294 110 user=user,
bgneal@294 111 view_count=int(row['topic_views']),
bgneal@294 112 sticky=(int(row['topic_type']) != 0),
bgneal@294 113 locked=(int(row['topic_status']) != 0),
bgneal@294 114 update_date=creation_date)
bgneal@294 115
bgneal@294 116 topic.save()
bgneal@294 117