144 lines
4.4 KiB
Python
144 lines
4.4 KiB
Python
"""Catalog indexers, using plone.indexer. These will populate standard catalog
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indexes with values based on the IComment interface.
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Also provide event handlers to actually catalog the comments.
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"""
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from string import join
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from DateTime import DateTime
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from Products.CMFCore.interfaces import IContentish
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from Products.ZCatalog.interfaces import IZCatalog
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from plone.app.discussion.interfaces import IConversation, IComment
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from plone.indexer import indexer
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try:
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from plone.uuid.interfaces import IUUID
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except ImportError:
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IUUID = None
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MAX_DESCRIPTION = 25
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# Conversation Indexers
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@indexer(IContentish, IZCatalog)
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def total_comments(object):
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# Total number of comments on a conversation
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# Indexers won't work on old discussion items
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if object.meta_type != 'Discussion Item':
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try:
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conversation = IConversation(object)
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return conversation.total_comments
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except TypeError: # pragma: no cover
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# The item is contentish but nobody
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# implemented an adapter for it
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pass
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@indexer(IContentish, IZCatalog)
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def last_comment_date(object):
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# Date of the latest comment on a conversation
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# Indexers won't work on old discussion items
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if object.meta_type != 'Discussion Item':
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try:
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conversation = IConversation(object)
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return conversation.last_comment_date
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except TypeError: # pragma: no cover
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# The item is contentish but nobody
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# implemented an adapter for it
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pass
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@indexer(IContentish, IZCatalog)
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def commentators(object):
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# List of commentators on a conversation
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# Indexers won't work on old discussion items
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if object.meta_type != 'Discussion Item':
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try:
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conversation = IConversation(object)
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return tuple(conversation.commentators.keys())
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except TypeError: # pragma: no cover
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# The item is contentish but nobody
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# implemented an adapter for it
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pass
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# Comment Indexers
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@indexer(IComment)
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def title(object):
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return object.Title()
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@indexer(IComment)
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def creator(object):
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return object.creator.encode('utf-8')
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@indexer(IComment)
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def description(object):
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# Return the first 25 words of the comment text and append ' [...]'
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text = join(object.getText(targetMimetype='text/plain').split()[:MAX_DESCRIPTION])
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if len(object.getText().split()) > 25:
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text += " [...]"
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return text
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@indexer(IComment)
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def searchable_text(object):
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return object.getText(targetMimetype='text/plain')
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@indexer(IComment)
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def in_response_to(object):
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# Always returns the content object the comment is added to.
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# Do not confuse this with the in_reply_to attribute of a comment!
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return object.__parent__.__parent__.title_or_id()
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@indexer(IComment)
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def effective(object):
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# the catalog index needs Zope DateTime instead of Python datetime
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return DateTime(object.creation_date.year,
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object.creation_date.month,
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object.creation_date.day,
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object.creation_date.hour,
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object.creation_date.minute,
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object.creation_date.second)
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@indexer(IComment)
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def created(object):
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# the catalog index needs Zope DateTime instead of Python datetime
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return DateTime(object.creation_date.year,
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object.creation_date.month,
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object.creation_date.day,
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object.creation_date.hour,
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object.creation_date.minute,
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object.creation_date.second)
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@indexer(IComment)
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def modified(object):
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# the catalog index needs Zope DateTime instead of Python datetime
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return DateTime(object.modification_date.year,
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object.modification_date.month,
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object.modification_date.day,
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object.modification_date.hour,
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object.modification_date.minute,
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object.modification_date.second)
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# Override the conversation indexers for comments
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@indexer(IComment)
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def comments_total_comments(object):
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return None
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@indexer(IComment)
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def comments_last_comment_date(object):
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return None
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@indexer(IComment)
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def comments_commentators(object):
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return None
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# Make sure comments don't inherit their container's UID
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@indexer(IComment)
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def UID(object):
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if IUUID:
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return IUUID(object, None)
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