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Discussions.py

##############################################################################
#
# Copyright (c) 2001 Zope Corporation and Contributors. All Rights Reserved.
# 
# This software is subject to the provisions of the Zope Public License,
# Version 2.0 (ZPL).  A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE
# 
##############################################################################
def HTMLFile( unused ):
    """
       Stub for method loaded from DTML document.
    """

00018 class Discussable:
    """
    Discussable is the interface for things which can have responses.
    It is implemented by PTKBase.Discussions.Discussable.  That class
    is designed to mix-in with a PortalContent-derived class.  It has
    already been mixed-in with the actual PortalContent class, so at
    present, any PTK object can support replies.

    This interface contains some bogosity.  Things like replyForm,
    replyPreview and createReply really shouldn't be done here.  The
    interface presently assumes that there is only one sort of object
    which the user would ever want to use to create a reply.  This is
    a bad assumption, and needs to be addressed!
    """

    threadView = HTMLFile('...')
    """
    The threadView method should return an HTML page which displays
    this item's children (and optionally parents, though not all
    Discussables can have parents).

    Permission: View
    """
    
    replyForm = HTMLFile('...')
    """
    The replyForm method should return an HTML page which presents an
    interface to enter a reply.  It should have buttons for submiting
    the form contents to replyPreview and createReply.

    Permission: Reply to item
    """

    replyPreview = HTMLFile('...')
    """
    This method needs to present the contents submitted from the
    replyForm form with a template similar to what the actual response
    object would use.  It should provide submit buttons linked to
    replyForm (for 'Edit') and createReply (for 'Reply').

    Permission: Reply to item
    """
    
00061     def createReply(self, title, text, REQUEST, RESPONSE):
        """
        Create a reply in the proper place.  See the next method for more
        information.

        Permission: Reply to item
        Returns: HTML (directly or via redirect)
        """

00070     def getReplyLocationAndID(self, REQUEST):
        """
        This method determines where a user's reply should be stored, and
        what it's ID should be.

        You don't really want to force users to have to select a
        unique ID each time they want to reply to something.  The
        present implementation selects a folder in the Member's home
        folder called 'Correspondence' (creating it if it is missing)
        and finds a free ID in that folder.

        createReply should use this method to determine what the reply
        it creates should be called, and where it should be placed.

        This method (and createReply, I expect) do not really belong in
        this interface.  There should be a DiscussionManager singleton
        (probably the portal object itself) which handles this.

        Permissions: None assigned
        Returns: 2-tuple, containing the container object, and a string ID.
        """

00092     def getReplyResults(self):
        """
        Return the ZCatalog results that represent this object's replies.

        Often, the actual objects are not needed.  This is less expensive
        than fetching the objects.

        Permissions: View
        Returns: sequence of ZCatalog results representing DiscussionResponses
        """

                       
00104     def getReplies(self):
        """
        Return a sequence of the DiscussionResponse objects which are
        associated with this Discussable

        Permissions: View
        Returns: sequence of DiscussionResponses
        """

00113     def quotedContents(self):
        """
        Return this object's contents in a form suitable for inclusion
        as a quote in a response.  The default implementation returns
        an empty string.  It might be overridden to return a '>' quoted
        version of the item.
        """

00121     def allowReplies(self):
        """
        This method must return a logically true value if an object is
        willing to support replies.

        Permissions: None assigned
        Returns: truth value
        """
        
00130 class DiscussionResponse:
    """
    
    This interface describes the behaviour of a Discussion Response.
    It is implemented in PTKBase.Discussions.DiscussionResponse.  This
    implementation is also designed to be mixed together with
    PortalContent.  This has been done in the
    PTK.DiscussionItem.DiscussionItem class, which the PTK presently
    uses for all replies.
    """

00141     def inReplyTo(self, REQUEST=None):
        """
        Return the Discussable object which this item is associated with

        Permissions: None assigned
        Returns: a Discussable object
        """

00149     def setReplyTo(self, reply_to):
        """
        Make this object a response to the passed object.  (Will also
        accept a path in the form of a string.)  If reply_to does not
        support or accept replies, a ValueError will be raised.  (This
        does not seem like the right exception.)

        Permissions: None assigned
        Returns: None
        """

00160     def parentsInThread(self, size=0):
        """
        Return the list of object which are this object's parents, from the
        point of view of the threaded discussion.  Parents are ordered
        oldest to newest.

        If 'size' is not zero, only the closest 'size' parents will be
        returned.
        """

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