forum.jsp

jive的源码

<%
/**
 *	$RCSfile: forum.jsp,v $
 *	$Revision: 1.6 $
 *	$Date: 2002/10/28 02:35:23 $
 */
%>
<%@ page import="java.util.*,
                 com.jivesoftware.util.*,
                 com.jivesoftware.forum.*,
                 com.jivesoftware.forum.util.*,
                 com.jivesoftware.base.*"
    errorPage="error.jsp"
%>

<%  // Page Description:
    //
    // This page displays content in a forum, specifically the list of topics
    // and some brief details about each topic. Some details of the forum -
    // number of topics and messages and description - will also be displayed.
%>

<%  // global.jsp - see description on index.jsp %>
<%@ include file="global.jsp" %>

<%  // Get parameters:

    // The ID of the incoming forum:
    long forumID = ParamUtils.getLongParameter(request,"forum",-1L);
    // The starting thread index (more below) -- 0 is the default:
    int start = ParamUtils.getIntParameter(request,"start",0);

    // Load the forum:
    Forum forum = forumFactory.getForum(forumID);

    // The number of topics to show per page
    int range = 20;
%>

<%@ include file="header.html" %>

<jsp:include page="breadcrumbs.jsp" flush="true">
    <jsp:param name="forum" value="<%= String.valueOf(forum.getID()) %>" />
</jsp:include>

<%-- Print out the number of topics, messages and the forum description: --%>

<p>
Topics: <%= forum.getThreadCount() %>, Messages: <%= forum.getMessageCount() %>,
Last Post: <%= dateFormatter.format(forum.getModificationDate()) %>
</p>

<p><i><%= forum.getDescription() %></i></p>

<%-- Display a link to post a new topic and search in this forum: --%>
<table cellpadding="0" cellspacing="0" border="0" width="100%">
<tr>
    <td width="99%">
        [<a href="post.jsp?forum=<%= forum.getID() %>">Post New Topic</a>]
        &nbsp;
        [<a href="search.jsp?forum=<%= forum.getID() %>">Search this Forum</a>]
    </td>
    <td width="1%" nowrap>
        <%  // Display the forum paginator if there is more than one page in this
            // forum. The number of pages is total number of topics in a forum
            // divided by the number of topics to display per page (the 'range'
            // variable. We also need to add one to the calculation because integer
            // division always rounds down:
            int numPages = (forum.getThreadCount() / range) + 1;

            if (numPages > 1) {
        %>
        <table class="paginator" cellpadding="2" cellspacing="0" border="0" width="100%">
        <tr>
            <td nowrap>

                Pages: [
                <%  // Loop over all the pages or to a max a 10 pages:
                    for (int i=0; (i<numPages&&i<10); i++) {
                        // Add a little bit of logic to determine if this page link
                        // is the current page - this will allow us to specially
                        // designate it via CSS:
                        boolean isCurrent = (start == (i*range));
                %>

                    <a href="forum.jsp?forum=<%= forum.getID() %>&start=<%= (i*range) %>"
                     class="<%= (isCurrent?"current-page":"") %>"
                     ><%= (i+1) %></a>

                <%  } %>
                ]

            </td>
        </tr>
        </table>
        <%  } %>
    </td>
</tr>
</table>
<br>

<%  // Get a list of topics in the forum. The threads() method of a forum
    // returns an iterator of all threads in the forum. Since there might be
    // a large number of threads in the system, we'll pass in a ResultFilter
    // object to the threads() method - this allows us to specify a starting
    // index in the list of topics and the number of topics to retrieve. We
    // could also do more advanced things like sort the list of topics by
    // different fields and different orders. By default, topics are returned
    // in descending modification date. The effect of this is that topics with
    // the newest content will be bumped to the top of the topic list. For
    // more information, please read the ResultFilter JavaDocs.
    ResultFilter filter = new ResultFilter();
    filter.setStartIndex(start);
    filter.setNumResults(range);
    Iterator threads = forum.getThreads(filter);
%>

<%  // Iterate through the list of topics. First, check if there are no topics
    // in the system and if so, print out an error message:
    if (!threads.hasNext()) {
%>
        <i>There are no topics in this forum.</i>

<%  }
    else {
%>

    <table id="thread-list" cellpadding="3" cellspacing="2" border="0" width="100%">
    <tr>
        <th colspan="2">Subject</th>
        <th>Author</th>
        <th>Replies</th>
        <th>Last Post</th>
    </tr>

    <%  // Loop through the threads - keep a counter variable so we can
        // keep track of alternating rows:
        int counter = 0;
        while (threads.hasNext()) {
            ForumThread thread = (ForumThread)threads.next();
            counter ++;
            // Get the user of the root message of the thread - this is the
            // user who posted the message:
            User author = thread.getRootMessage().getUser();
            // Note, below 'thread.getName()' is called - this message is a
            // shortcut for 'thread.getRootMessage().getSubect()'.
            // Also, note below that the number of replies in a thread is
            // the total number of messages in the thread minus one - this is
            // because the root message is counted by the getMessageCount method.

            // Figure out if this topic was posted after the last time the page
            // user visited the site. Do this by checking the creation date of
            // the thread compared to the date of the last visit (the last
            // visited time is in a global variable called 'lastVisited' and
            // is initialized in the global.jsp page):
            boolean isNew = lastVisited.getTime() < thread.getCreationDate().getTime();
    %>
        <tr class="alt-color-<%= ((counter%2==0)?"2":"1") %>">
            <td align="center" width="1%" nowrap>
                <%  // Display a bullet with different CSS tags to indicate
                    // new/old content. The CSS should customize the colors
                    // so a new piece of content is visually distinguished from
                    // an old one:
                    if (isNew) {
                %>
                    <span class="new-content">&#149;</span>

                <%  } else { %>

                    <span class="old-content">&#149;</span>

                <%  } %>
            </td>
            <td width="96%">

                <%-- Display the thread name (as a link to that thread) --%>
                <a href="thread.jsp?forum=<%= forum.getID() %>&thread=<%= thread.getID() %>"
                 ><%= thread.getName() %></a>

            </td>
            <td align="center" width="1%"nowrap>
                <%  // Print 'Guest' if the author was anonymous, otherwise print
                    // the user's username and a link to their profile page:
                    if (author == null) {
                %>
                    <i>Guest</i>

                <%  } else { %>

                    <a href="profile.jsp?user=<%= author.getID() %>"
                     ><%= author.getUsername() %></a>

                <%  } %>
            </td>
            <td align="center" width="1%" nowrap>
                <%= (thread.getMessageCount()-1) %>
            </td>
            <td width="1%" nowrap>
                <%= dateFormatter.format(thread.getModificationDate()) %>
            </td>
        </tr>

    <%
        } // end of while loop
    %>

    </table>

<%
    } // end of else
%>

<%@ include file="footer.html" %>