175 lines
6.6 KiB
Python
175 lines
6.6 KiB
Python
from datetime import datetime
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from Acquisition import aq_inner, aq_parent
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from Products.Five.browser import BrowserView
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from Products.CMFCore.utils import getToolByName
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from Products.CMFCore.interfaces._content import IDiscussionResponse
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import transaction
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from plone.app.discussion.comment import CommentFactory
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from plone.app.discussion.interfaces import IConversation, IReplies, IComment
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class View(BrowserView):
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"""Migration View
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"""
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def __call__(self):
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context = aq_inner(self.context)
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out = []
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self.total_comments_migrated = 0
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self.total_comments_deleted = 0
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dry_run = self.request.has_key("dry_run")
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# This is for testing only.
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# Do not use transactions during a test.
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test = self.request.has_key("test")
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if not test:
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transaction.begin() # pragma: no cover
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catalog = getToolByName(context, 'portal_catalog')
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def log(msg):
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# encode string before sending it to external world
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if isinstance(msg, unicode):
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msg = msg.encode('utf-8') # pragma: no cover
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context.plone_log(msg)
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out.append(msg)
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def migrate_replies(context, in_reply_to, replies, depth=0):
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# Recursive function to migrate all direct replies
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# of a comment. Returns True if there are no replies to
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# this comment left, and therefore the comment can be removed.
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if len(replies) == 0:
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return True
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for reply in replies:
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# log
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indent = " "
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for i in range(depth):
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indent += " "
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log("%smigrate_reply: '%s'." % (indent, reply.title))
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# create a reply object
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comment = CommentFactory()
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comment.title = reply.Title()
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comment.text = reply.text
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comment.creator = reply.Creator()
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comment.creation_date = datetime.fromtimestamp(
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reply.creation_date)
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comment.modification_date = datetime.fromtimestamp(
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reply.modification_date)
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comment.reply_to = in_reply_to
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if in_reply_to == 0:
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# Direct reply to a content object
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new_in_reply_to = conversation.addComment(comment)
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else:
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# Reply to another comment
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comment_to_reply_to = conversation.get(in_reply_to)
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replies = IReplies(comment_to_reply_to)
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new_in_reply_to = replies.addComment(comment)
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self.total_comments_migrated += 1
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# migrate all talkbacks of the reply
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talkback = getattr( reply, 'talkback', None )
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no_replies_left = migrate_replies(context,
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new_in_reply_to,
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talkback.getReplies(),
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depth=depth+1)
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if no_replies_left:
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# remove reply and talkback
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talkback.deleteReply(reply.id)
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obj = aq_parent(talkback)
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obj.talkback = None
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log("%sremove %s" % (indent, reply.id))
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self.total_comments_deleted += 1
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# Return True when all comments on a certain level have been
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# migrated.
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return True
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# Find content
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brains = catalog.searchResults(
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object_provides='Products.CMFCore.interfaces._content.IContentish')
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log("Found %s content objects." % len(brains))
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count_discussion_items = len(catalog.searchResults(
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Type='Discussion Item'))
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count_comments_pad = len(catalog.searchResults(
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object_provides=IComment.__identifier__))
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count_comments_old = len(catalog.searchResults(
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object_provides=IDiscussionResponse.\
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__identifier__))
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log("Found %s Discussion Item objects." % count_discussion_items)
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log("Found %s old discussion items." % count_comments_old)
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log("Found %s plone.app.discussion comments." % count_comments_pad)
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log("\n")
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log("Start comment migration.")
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# This loop is necessary to get all contentish objects, but not
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# the Discussion Items. This wouldn't be necessary if the
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# zcatalog would support NOT expressions.
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new_brains = []
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for brain in brains:
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if brain.portal_type != 'Discussion Item':
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new_brains.append(brain)
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# Recursively run through the comment tree and migrate all comments.
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for brain in new_brains:
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obj = brain.getObject()
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talkback = getattr( obj, 'talkback', None )
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if talkback:
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replies = talkback.getReplies()
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if replies:
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conversation = IConversation(obj)
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log("\n")
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log("Migrate '%s' (%s)" % (obj.Title(),
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obj.absolute_url(relative=1)))
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migrate_replies(context, 0, replies)
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obj = aq_parent(talkback)
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obj.talkback = None
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if self.total_comments_deleted != self.total_comments_migrated:
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log("Something went wrong during migration. The number of \
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migrated comments (%s) differs from the number of deleted \
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comments (%s)." # pragma: no cover
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% (self.total_comments_migrated, self.total_comments_deleted))
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if not test: # pragma: no cover
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transaction.abort() # pragma: no cover
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log("Abort transaction") # pragma: no cover
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log("\n")
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log("Comment migration finished.")
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log("\n")
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log("%s of %s comments migrated."
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% (self.total_comments_migrated, count_comments_old))
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if self.total_comments_migrated != count_comments_old:
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log("%s comments could not be migrated."
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% (count_comments_old - self.total_comments_migrated)) # pragma: no cover
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log("Please make sure your portal catalog is up-to-date.") # pragma: no cover
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if dry_run and not test:
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transaction.abort() # pragma: no cover
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log("Dry run") # pragma: no cover
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log("Abort transaction") # pragma: no cover
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if not test:
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transaction.commit() # pragma: no cover
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return '\n'.join(out)
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