migratedata.py 文件源码

def migrate_old_posts():
    """
    Converts all old posts from a simple page format to one Wagtail accepts
    """
    # id=4 is the specific page ID for the news index page
    index = Page.objects.get(id=4).specific
    old_posts = Communication.objects.using('old_data').all().order_by('date')
    user = get_user_model().objects.get(id=1)

    for post in old_posts:
        if post.title:
            title = post.title
        else:
            title = 'Archived item from {date}'.format(date=date(post.date, 'D jS F Y'))

        slug = slugify('{title} - {rand}'.format(title=title, rand=int(round(time.time() * 1000))))

        if len(post.text) > 512:
            intro = post.text[:512] + '...'
        else:
            intro = post.text

        page = BlogPage(
            search_description='',
            seo_title=title,
            show_in_menus=False,
            slug=slug,
            title=title,
            date=post.date,
            first_published_at=post.date,
            intro=linebreaks(intro),
        )

        page.body.stream_data = [
            ('paragraph', RichText('<p>{body}</p>'.format(body=linebreaks(post.text))))
        ]

        page.tags.add(COMMS_DICT[post.type])

        print('Restoring article from {date}'.format(date=post.date))

        index.add_child(instance=page)
        revision = page.save_revision(
            user=user,
            submitted_for_moderation=False
        )
        revision.publish()
        page.save()