migration-is-back
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226
migration/tables/content_items.py
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226
migration/tables/content_items.py
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from dateutil.parser import parse as date_parse
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import sqlalchemy
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from orm.shout import Shout, ShoutTopic, User
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from storages.viewed import ViewedByDay
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from transliterate import translit
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from datetime import datetime
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from orm.base import local_session
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from migration.extract import prepare_html_body
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from orm.community import Community
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from orm.reaction import Reaction, ReactionKind
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OLD_DATE = '2016-03-05 22:22:00.350000'
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ts = datetime.now()
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type2layout = {
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'Article': 'article',
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'Literature': 'prose',
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'Music': 'music',
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'Video': 'video',
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'Image': 'image'
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}
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def get_shout_slug(entry):
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slug = entry.get('slug', '')
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if not slug:
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for friend in entry.get('friendlySlugs', []):
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slug = friend.get('slug', '')
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if slug: break
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return slug
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def migrate(entry, storage):
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# init, set title and layout
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r = {
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'layout': type2layout[entry['type']],
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'title': entry['title'],
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'community': Community.default_community.id,
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'authors': [],
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'topics': set([]),
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# 'rating': 0,
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# 'ratings': [],
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'createdAt': []
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}
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topics_by_oid = storage['topics']['by_oid']
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users_by_oid = storage['users']['by_oid']
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# author
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oid = entry.get('createdBy', entry.get('_id', entry.get('oid')))
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userdata = users_by_oid.get(oid)
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if not userdata:
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app = entry.get('application')
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if app:
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userslug = translit(app['name'], 'ru', reversed=True)\
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.replace(' ', '-')\
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.replace('\'', '')\
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.replace('.', '-').lower()
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userdata = {
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'username': app['email'],
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'email': app['email'],
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'name': app['name'],
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'bio': app.get('bio', ''),
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'emailConfirmed': False,
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'slug': userslug,
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'createdAt': ts,
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'wasOnlineAt': ts
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}
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else:
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userdata = User.default_user.dict()
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assert userdata, 'no user found for %s from ' % [oid, len(users_by_oid.keys())]
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r['authors'] = [userdata, ]
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# slug
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slug = get_shout_slug(entry)
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if slug: r['slug'] = slug
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else: raise Exception
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# cover
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c = ''
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if entry.get('thumborId'):
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c = 'https://assets.discours.io/unsafe/1600x/' + entry['thumborId']
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else:
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c = entry.get('image', {}).get('url')
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if not c or 'cloudinary' in c: c = ''
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r['cover'] = c
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# timestamps
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r['createdAt'] = date_parse(entry.get('createdAt', OLD_DATE))
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r['updatedAt'] = date_parse(entry['updatedAt']) if 'updatedAt' in entry else ts
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if entry.get('published'):
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r['publishedAt'] = date_parse(entry.get('publishedAt', OLD_DATE))
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if r['publishedAt'] == OLD_DATE: r['publishedAt'] = ts
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if 'deletedAt' in entry: r['deletedAt'] = date_parse(entry['deletedAt'])
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# topics
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category = entry['category']
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mainTopic = topics_by_oid.get(category)
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if mainTopic:
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r['mainTopic'] = storage['replacements'].get(mainTopic["slug"], mainTopic["slug"])
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topic_oids = [category, ]
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topic_oids.extend(entry.get('tags', []))
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for oid in topic_oids:
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if oid in storage['topics']['by_oid']:
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r['topics'].add(storage['topics']['by_oid'][oid]['slug'])
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else:
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print('[migration] unknown old topic id: ' + oid)
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r['topics'] = list(r['topics'])
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entry['topics'] = r['topics']
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entry['cover'] = r['cover']
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entry['authors'] = r['authors']
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# body
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r['body'] = prepare_html_body(entry)
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# save shout to db
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s = object()
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shout_dict = r.copy()
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user = None
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del shout_dict['topics'] # FIXME: AttributeError: 'str' object has no attribute '_sa_instance_state'
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#del shout_dict['rating'] # FIXME: TypeError: 'rating' is an invalid keyword argument for Shout
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#del shout_dict['ratings']
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email = userdata.get('email')
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slug = userdata.get('slug')
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with local_session() as session:
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# c = session.query(Community).all().pop()
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if email: user = session.query(User).filter(User.email == email).first()
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if not user and slug: user = session.query(User).filter(User.slug == slug).first()
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if not user and userdata:
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try: user = User.create(**userdata)
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except sqlalchemy.exc.IntegrityError:
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print('[migration] user error: ' + userdata)
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userdata['id'] = user.id
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userdata['createdAt'] = user.createdAt
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storage['users']['by_slug'][userdata['slug']] = userdata
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storage['users']['by_oid'][entry['_id']] = userdata
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assert user, 'could not get a user'
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shout_dict['authors'] = [ user, ]
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try:
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s = Shout.create(**shout_dict)
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except sqlalchemy.exc.IntegrityError as e:
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with local_session() as session:
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s = session.query(Shout).filter(Shout.slug == shout_dict['slug']).first()
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bump = False
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if s:
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for key in shout_dict:
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if key in s.__dict__:
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if s.__dict__[key] != shout_dict[key]:
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print('[migration] shout already exists, but differs in %s' % key)
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bump = True
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else:
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print('[migration] shout already exists, but lacks %s' % key)
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bump = True
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if bump:
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s.update(shout_dict)
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else:
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print('[migration] something went wrong with shout: \n%r' % shout_dict)
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raise e
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session.commit()
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except:
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print(s)
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raise Exception
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# shout topics aftermath
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shout_dict['topics'] = []
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for tpc in r['topics']:
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oldslug = tpc
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newslug = storage['replacements'].get(oldslug, oldslug)
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if newslug:
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with local_session() as session:
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shout_topic_old = session.query(ShoutTopic)\
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.filter(ShoutTopic.shout == shout_dict['slug'])\
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.filter(ShoutTopic.topic == oldslug).first()
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if shout_topic_old:
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shout_topic_old.update({ 'slug': newslug })
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else:
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shout_topic_new = session.query(ShoutTopic)\
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.filter(ShoutTopic.shout == shout_dict['slug'])\
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.filter(ShoutTopic.topic == newslug).first()
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if not shout_topic_new:
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try: ShoutTopic.create(**{ 'shout': shout_dict['slug'], 'topic': newslug })
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except: print('[migration] shout topic error: ' + newslug)
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session.commit()
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if newslug not in shout_dict['topics']:
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shout_dict['topics'].append(newslug)
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else:
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print('[migration] ignored topic slug: \n%r' % tpc['slug'])
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# raise Exception
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# content_item ratings to reactions
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try:
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for content_rating in entry.get('ratings',[]):
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with local_session() as session:
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rater = session.query(User).filter(User.oid == content_rating['createdBy']).first()
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reactedBy = rater if rater else session.query(User).filter(User.slug == 'noname').first()
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if rater:
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reaction_dict = {
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'kind': ReactionKind.LIKE if content_rating['value'] > 0 else ReactionKind.DISLIKE,
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'createdBy': reactedBy.slug,
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'shout': shout_dict['slug']
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}
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cts = content_rating.get('createdAt')
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if cts: reaction_dict['createdAt'] = date_parse(cts)
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reaction = session.query(Reaction).\
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filter(Reaction.shout == reaction_dict['shout']).\
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filter(Reaction.createdBy == reaction_dict['createdBy']).\
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filter(Reaction.kind == reaction_dict['kind']).first()
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if reaction:
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reaction_dict['kind'] = ReactionKind.AGREE if content_rating['value'] > 0 else ReactionKind.DISAGREE,
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reaction.update(reaction_dict)
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else: Reaction.create(**reaction_dict)
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# shout_dict['ratings'].append(reaction_dict)
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except:
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print('[migration] content_item.ratings error: \n%r' % content_rating)
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raise Exception
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# shout views
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ViewedByDay.create( shout = shout_dict['slug'], value = entry.get('views', 1) )
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# del shout_dict['ratings']
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shout_dict['oid'] = entry.get('_id')
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storage['shouts']['by_oid'][entry['_id']] = shout_dict
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storage['shouts']['by_slug'][slug] = shout_dict
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return shout_dict
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