plone.app.discussion/plone/app/discussion/catalog.py

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"""Catalog indexers, using plone.indexer. These will populate standard catalog
indexes with values based on the IComment interface.
Also provide event handlers to actually catalog the comments.
"""
from string import join
from DateTime import DateTime
from Products.CMFCore.interfaces import IContentish
from Products.ZCatalog.interfaces import IZCatalog
from plone.app.discussion.interfaces import IConversation, IComment
from plone.indexer import indexer
MAX_DESCRIPTION=25
# Conversation Indexers
@indexer(IContentish, IZCatalog)
def total_comments(object):
conversation = IConversation(object)
return conversation.total_comments
@indexer(IContentish, IZCatalog)
def last_comment_date(object):
conversation = IConversation(object)
return conversation.last_comment_date
@indexer(IContentish, IZCatalog)
def commentators(object):
conversation = IConversation(object)
return tuple(conversation.commentators.keys())
# Comment Indexers
@indexer(IComment)
def title(object):
return object.title
@indexer(IComment)
def creator(object):
return object.creator
@indexer(IComment)
def description(object):
# Return the first 25 words of the comment text and append ' [...]'
text = join(object.text.split()[:MAX_DESCRIPTION])
if len(object.text.split()) > 25:
text += " [...]"
return text
@indexer(IComment)
def searchable_text(object):
return object.title, object.text
@indexer(IComment)
def in_response_to(object):
return object.__parent__.__parent__.title_or_id()
@indexer(IComment)
def effective(object):
# the catalog index needs Zope DateTime instead of Python datetime
# Todo!!!
return DateTime
@indexer(IComment)
def created(object):
# the catalog index needs Zope DateTime instead of Python datetime
return DateTime(object.creation_date.year,
object.creation_date.month,
object.creation_date.day,
object.creation_date.hour,
object.creation_date.minute,
object.creation_date.second)
@indexer(IComment)
def modified(object):
# the catalog index needs Zope DateTime instead of Python datetime
return DateTime(object.modification_date.year,
object.modification_date.month,
object.modification_date.day,
object.modification_date.hour,
object.modification_date.minute,
object.modification_date.second)
# Override the conversation indexers for comments
@indexer(IComment)
def comments_total_comments(object):
return None
@indexer(IComment)
def comments_last_comment_date(object):
return None
@indexer(IComment)
def comments_commentators(object):
return None