root/qPloneComments/branches/plone-3.0/patch.py

from DateTime import DateTime
from Globals import InitializeClass
from AccessControl import Unauthorized
from AccessControl import getSecurityManager
from Products.CMFCore.utils import getToolByName
from Products.CMFDefault.DiscussionItem import DiscussionItem
from Products.CMFDefault.DiscussionItem import DiscussionItemContainer

from Products.qPloneComments.utils import getProp

# Patching createReply method of
# Products.CMFDefault.DiscussionItem.DiscussionItemContainer
def createReply(self, title, text, Creator=None, email=''):
    """Create a reply in the proper place.
    """
    container = self._container

    id = int(DateTime().timeTime())
    while self._container.get(str(id), None) is not None:
        id += 1
    id = str(id)

    item = DiscussionItem(id, title=title, description=title)

    if Creator:
        if getattr(item, 'addCreator', None) is not None:
            item.addCreator(Creator)
        else:
            item.creator = Creator

    self._container[id] = item
    item = item.__of__(self)

    item.setFormat('structured-text')
    item._edit(text)

    pm = getToolByName(self, 'portal_membership')
    if pm.isAnonymousUser():
        item.manage_addProperty(id='email', value=email, type='string')

    item.review_state = 'private'

    # Control of performing moderation
    if getProp(self, 'enable_moderation', marker=False):
        roles = [role['name'] for role in self.acl_users.rolesOfPermission('Moderate Discussion')
                 if role['selected']== 'SELECTED']
        roles.append('DiscussionManager')
        item.manage_permission('Delete objects', roles, acquire=1)
        item.manage_permission('View', roles, acquire=0)
    else:
        item.review_state = 'published'

    item.setReplyTo(self._getDiscussable())
    item.indexObject()

    return id

def getReplies( self ):
    """Return a sequence of the DiscussionResponse objects which are
       associated with this Discussable.
    """
    objects = []
    validate = getSecurityManager().validate

    result_ids = self._getReplyResults()
    for id in result_ids:
        comment = self._container.get(id).__of__(self)
        try:
            if validate(self, self, id, comment):
                objects.append(comment)
        except Unauthorized:
            pass
    return objects

perms = DiscussionItemContainer.__ac_permissions__
new_perms = []
for item in perms:
    perm_name = item[0]
    funcs = item[1]
    if 'deleteReply' in funcs:
        new_perms.append((perm_name, [f for f in funcs if f != 'deleteReply']))
        new_perms.append(('Moderate Discussion', ('deleteReply',)))
    else:
        new_perms.append(item)

DiscussionItemContainer.__ac_permissions__ = new_perms
InitializeClass(DiscussionItemContainer)

DiscussionItemContainer.createReply = createReply
DiscussionItemContainer.getReplies = getReplies