annotate legacy/management/commands/import_old_topics.py @ 990:81b96f3c9e59

Reorganized requirements files to be DRY.
author Brian Neal <bgneal@gmail.com>
date Sat, 31 Oct 2015 17:36:31 -0500
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