[已解決]文章無法顯示，出現fatal error

[polaristin]

今天發現首頁掛了
http://stin.csie.org/lifetype/
卡在右方的最近文章等等的
好像是文章的地方出了問題
錯誤訊息是
Fatal error: Call to a member function on a non-object in c:\appserv\www\lifetype\class\net\prettyrequestgenerator.class.php on line 40
而去找出line 40是
$permaLink = $this->getBaseUrl()."/post/".$this->_blogInfo->getId()."/".$post->getId();
還是不太能理解哪裡錯
煩請指點 @@
謝謝

我的架站環境
Windows XP Sp1
AppServ 2.4.4a
Apache Web Server Version 1.3.33
PHP Script Language Version 4.3.11
MySQL Database Version 4.0.24
phpMyAdmin Database Manager Version 2.5.7-pl1

[markwu]

你能把那一部份的模版貼出來嗎？看起來是 $post 沒有傳入 ...

Mark

[polaristin]

是指prettyrequestgenerator.class.php嗎?

程式碼:

<?php

    /**
     * @package net
     */


	include_once( PLOG_CLASS_PATH."class/net/baserequestgenerator.class.php" );

    /**
     * \ingroup Net
     *
     * Generates prettier but non-customizable requests.
     *
     * @see RequestGenerator
     * @see BaseRequestGenerator
     */
	class PrettyRequestGenerator extends BaseRequestGenerator 
	{

    	/**
         * Constructor.
         *
         * @param blogInfo A BlogInfo object
         */
    	function PrettyRequestGenerator( $blogInfo )
        {
        	$this->BaseRequestGenerator( $blogInfo );

        }

    	/**
         * Returns the permalink for a post
         *
         * @param post The Article object
         * @return The link for the permalink
         */
		function postPermalink( $post )
        {
            $permaLink = $this->getBaseUrl()."/post/".$this->_blogInfo->getId()."/".$post->getId();

            return $permaLink;
        }

        /**
         * generates an archive link given a date. 
         *
         * @param date A Timestamp object
         * @return A valid archive link
         */                
        function getArchiveLink( $date )
        {
        	$archiveLink = $this->getBaseUrl()."/archives";
            if( $this->_blogInfo != null )
            	$archiveLink .= "/".$this->_blogInfo->getId();
            $archiveLink .= "/$date";

            return $archiveLink;
        }

        /**
         * Returns the comment link for a post
         *
         * @param post The Article object
         * @return The correct string
         */
        function postCommentLink( $post )
        {
            $commentLink = $this->getBaseUrl()."/comment/".$this->_blogInfo->getId()."/".$post->getId();

            return $commentLink;
        }

        /**
         * Returns the link for the post
         *
         * @param post The Article object
         * @return The link for the post
         */
        function postLink( $post )
        {

            $postLink = $this->postPermalink( $post );

            return $postLink;
        }

        /**
         * Returns the link for the post. This is kind of a dirty trick... :( This is only meant to be
         * used in the template that generates the rss feed for a blog.
         *
         * @param post The Article object
         * @return The link for the post
         */
        function postRssLink( $post )
        {
        	$postLink = $this->postPermalink($post);

            return $postLink;
        }

        /**
         * Returns the link of a category.
         *
         * @param post The post from which we'll fetch the category and then generate the right link.
         * @return The url pointing to the page with only the posts belonging to that category.
         * @see Article
         * @see categoryLink
         */
        function postCategoryLink( $post )
        {
            throw( new Exception( "DEPRECATED!"));
            die();
        }

        /**
         * Returns the link but given a category. Does the same as postCategoryLink but this time we don't need
         * a post but an ArticleCategory object.
         *
         * @see postCategoryLink
         * @see ArticleCategory
         * @param An ArticleCategory object containing the information regarding the category.
         * @return A string with the correct url pointing to the page that will show only the posts that belong
         * to the given category.
         */
        function categoryLink( $category )
        {
            $categoryLink = $this->getBaseUrl()."/category/".$this->_blogInfo->getId()."/".$category->getId();

            return $categoryLink;
        }

        /**
         * Returns a link to only the articles of the user
         *
         * @param user The user whose posts we would like to see
         * @return A string containing the right url to only the posts of the user.
         * @see UserInfo
         * @see ArticleCategory
         */
        function postUserLink( $user )
        {
            $userLink = $this->getBaseUrl()."/user/".$this->_blogInfo->getId()."/".$user->getId();

            return $userLink;
        }

        /**
         * Returns the url of the host where the blog is running
         *
         * @return Returns the url where the blog is running.
         */
        function blogLink( $blogInfo = null )
        {
          $config =& Config::getConfig();          
          // if subdomains are enabled, there is no need to do much more here... 
          if( $config->getValue( "subdomains_enabled" )) {
            $link = $this->getBaseUrl();
          }
          else {
                // if not, we need some additional logic
    			$disableApacheErrorHandler = $config->getValue( "disable_apache_error_handler" );
    			if( $disableApacheErrorHandler )
    				$path = "/blog/";
    			else
    				$path = "/";
				
		
                if( $blogInfo == null ) {
                    if( $config->getValue( "pretty_urls_force_use_username" )) {
                        $userInfo = $this->_blogInfo->getOwnerInfo();
                        $link = $this->getBaseUrl().$path.$userInfo->getUsername();
                    }
                    else {
                	   $link = $this->getBaseUrl().$path.$this->_blogInfo->getId();
                    }
                }
                else {
                	$link = $this->getBaseUrl().$path.$blogInfo->getId();
                }
            }

            return $link;
        }

        /**
         * Returns the url where the rss feed is running
         *
         * @param blogInfo A BlogInfo object containing information about the blog.
         * @param profile The RSS profile we'd like to use. It defaults to none.
         * @return The url pointing to the rss feed of the journal.
         * @see BlogInfo
         */
        function rssLink( $profile = "", $blogInfo = null )
        {
        	$rssBase = $this->getBaseUrl()."/rss/";
            if( $profile != "" )
            	$rssBase .= $profile."/";

        	if( $blogInfo == null )
            	$rssLink = $rssBase.$this->_blogInfo->getId();
            else
            	$rssLink = $rssBase.$blogInfo->getId();

            return $rssLink;
        }

        /**
         * Returns the url for the rss feed of a category
         *
         * @param category The ArticleCategory object with information about the category
         * whose RSS feed we'd like to generate
         * @ram profile The profile we'd like to generate: RSS 0.90, RSS 1.0, RSS 2.0
         * or XML.
         * @param blogInfo A BlogInfo object containing information about the blog.
         * @return The url pointing to the rss feed of the journal.
         * @see BlogInfo
         */
        function categoryRssLink( $category, $profile = "", $blogInfo = null )
        {
        	$rssBase = $this->getBaseUrl()."/rss/";

            if( $profile != "" )
            	$rssBase .= $profile."/";

        	if( $blogInfo == null )
            	$rssLink = $rssBase.$this->_blogInfo->getId();
            else
            	$rssLink = $rssBase.$blogInfo->getId();

            $rssLink .= "/".$category->getId();

            return $rssLink;
        }

        /**
         * Returns the trackback link for a given post. 
         *
         * @param post The post with the necessary information.
         * @return A string representing the rdf trackback link.
         */        
        function postTrackbackLink( $post )
        {
        	$rdfHeader = '<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
                                   xmlns:dc="http://purl.org/dc/elements/1.1/"
                                   xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/">';

            $trackbackLink = $this->getTrackbackUrl()."?id=".$post->getId();
            $rdfBody = "<rdf:Description
                             rdf:about=\"".$this->postLink($post)."\"
                             dc:identifier=\"".$this->postLink($post)."\"
                             dc:title=\"".$post->getTopic()."\"
                             trackback:ping=\"".$trackbackLink."\"/>";
            $rdfFooter = "</rdf:RDF>";

            return $rdfHeader.$rdfBody.$rdfFooter;
        }

        /**
         * Returns the url to reply to a given comment.
         *
         * @param post An Article object with information about the post
         * @param commen A UserComment object containing information about the post we'd like to reply to.
         * @return The right url to reply to this comment.
         * @see UserComment
         * @see Article
         */
        function replyCommentLink( $post, $comment )
        {
            $replyCommentLink = $this->getIndexUrl()."?op=Comment&amp;articleId=".$post->getId()."&amp;parentId=".$comment->getId()."&amp;blogId=".$this->_blogInfo->getId();

            return $replyCommentLink;
        }

        /**
         * Returns the link to the page showing the trackback statistics for a given post.
         *
         * @param post The post with the information.
         * @return Returns a string with the valid link.
         */
        function postTrackbackStatsLink( $post )
        {
            $tbStatsLink = $this->getBaseUrl()."/trackbacks/".$this->_blogInfo->getId()."/".$post->getId();

            return $tbStatsLink;
        }

        /**
         * Returns the link to an album
         *
         * @param album The GalleryAlbum object.
         */
        function albumLink( $album = null )
        {
			if( $album == null )
				$albumLink = $this->getBaseUrl()."/album/".$this->_blogInfo->getId()."/0";
			else 
				$albumLink = $this->getBaseUrl()."/album/".$this->_blogInfo->getId()."/".$album->getId();

            return $albumLink;
        }

        /**
         * Given an album, generates a link to its parent. Must be implemented by child classes to generate
         * a valid URL.
         *
         * @param album The album
         */            
        function parentAlbumLink( $album )
        {
        	$albumLink = $this->getBaseUrl()."/album/".$this->_blogInfo->getId()."/".$album->getParentId();

            return $albumLink;
        }

        /**
         * Given the name of a template file, generate the right link to it. Must be implemented by child
         * classes to generate a valid URL.
         *
         * @param template
         * @return A link to the given template file/static page
         */
        function templatePage( $template )
        {
        	$templatePage = $this->getBaseUrl()."/static/".$this->_blogInfo->getId()."/".$template;

            return $templatePage;
        }

        /**
         * Returns the link to a resource
         *
         * @param album Generates the correct link to fetch a resource
         */
        function resourceLink( $resource )
        {
        	$blogId = ($resource->getOwnerId() ? $resource->getOwnerId() : $this->_blogInfo->getId());
        	
        	return $resourceLink = $this->getBaseUrl()."/resource/".$blogId."/".$resource->getId();
        }

        /**
         * Returns the link to a resource preview
         *
         * @param album Generates the correct link to fetch a resource preview
         */
        function resourcePreviewLink( $resource )
        {
			$blogId = ($resource->getOwnerId() ? $resource->getOwnerId() : $this->_blogInfo->getId());
        	
        	return $resourceLink = $this->getBaseUrl()."/resserver.php?blogId=".$blogId."&amp;resource=".rawurlencode($resource->getFileName())."&amp;mode=preview";
        }
		
        /**
         * Returns the link to a resource preview
         *
         * @param album Generates the correct link to fetch a resource preview
         */
        function resourceMediumSizePreviewLink( $resource )
        {
			$blogId = ($resource->getOwnerId() ? $resource->getOwnerId() : $this->_blogInfo->getId());

        	return $resourceLink = $this->getBaseUrl()."/resserver.php?blogId=".$blogId."&amp;resource=".rawurlencode($resource->getFileName())."&amp;mode=medium";
        }		

        /**
         * Returns the link to a resource
         *
         * @param resource Generates the correct link to fetch a resource
         */
        function resourceDownloadLink( $resource )
        {
        	$blogId = ($resource->getOwnerId() ? $resource->getOwnerId() : $this->_blogInfo->getId());
        	
        	return $resourceLink = $this->getBaseUrl()."/get/".$blogId."/".rawurlencode($resource->getFileName());
        }


        /**
         * Returns a string representing the request
         *
         * @return A String object representing the request
         */
        function getRequest()
        {
        	throw( new Exception( "PrettyRequestGenerator::getRequest: function not implemented" ));
            die();
        }
    }
?>

[lss]

mark 是要你貼出出問題地方的模版，就是你的模版裡的 sidebar-l.template 裡的這一段：

程式碼:

<!--Top Read Posts-->
{if $topreadposts->isEnabled()}
<h3>熱門文章</h3>
<ul>
{assign var=readposts value=$topreadposts->getTopReadPosts()}
{foreach from=$readposts item=readpost}
<li><a href="{$url->postLink($readpost)}">{$readpost->getTopic()}</a> [{$readpost->getNumReads()} 次]</li>
{/foreach}
</ul>
{/if}

依我判斷，問題出在你的 topreadposts 外掛並沒有傳回任何文章( 就是 $readpost 是 null ) ，所以才會出現錯誤訊息裡那一行：

程式碼:

$permaLink = $this->getBaseUrl()."/post/".$this->_blogInfo->getId()."/".$post->getId();

裡面的 $post 是一個 null 而非物件，才會造成錯誤。

你可以這樣改：

<!--Top Read Posts-->
{if $topreadposts->isEnabled()}
<h3>熱門文章</h3>
<ul>
{assign var=readposts value=$topreadposts->getTopReadPosts()}
{if !empty($readposts) }
{foreach from=$readposts item=readpost}
<li><a href="{$url->postLink($readpost)}">{$readpost->getTopic()}</a> [{$readpost->getNumReads()} 次]</li>
{/foreach}
{/if}
</ul>
{/if}

應該就可以了。

提供詳細資訊，可以省很多事。不是什麼時候都有空可以看這麼仔細的。

lss

[polaristin]

謝謝回應
不過我有試著把最多閱讀、最新文章那些通通移掉
結果還是差不多
所以才覺得應該不是那裡的程式碼出了問題
覺得有點像是mark所說的$post的問題
而這我不知道該怎麼找起

也附上sidebar-l.template

程式碼:

<div id="avmenu">
<h2 class="hide">Menu:</h2>


<h3>關於我</h3>
<ul>
<img src="{$url->getTemplateFile("images/me.jpg")}" align="left" hspace="5">
<p>
polaristin<br/>
綽號小p<br/>
1985/07/23<br />
Taipei, Taiwan<br />
<a href="http://stin.csie.org/lifetype/"><img src="{$url->getUrl("/imgs/PsLove.png")}"  vspace="5" alt="P's & Love" /></a></p>
<p>台南人，現於台北念書，明年即將考研究所的苦悶(?)大三生...</p>
<center><a href="mailto:polaristin@gmail.com"><img vspace="3" src="http://services.nexodyne.com/email/icon/x7oHr%2BhGHHDU0A%3D%3D/YwkQ%2Bu4%3D/R01haWw%3D/0/image.png"></a></center>
</ul>

<h3>{$locale->tr("search")}</h3>
<center>
<form method="post" action="{$url->getIndexUrl()}">
<input type="text" name="searchTerms" value="" size="20" />
<input type="hidden" name="op" value="Search" />
<input type="hidden" name="blogId" value="{$blog->getId()}"/>
<input type="submit" name="Search" value="搜尋" />
</form>
</center>

<h3>最新文章</h3>
<ul>
{foreach from=$recentposts item=recentpost}
<li><a title="{$recentpost->getText()|truncate:100:"..."|strip_tags|escape}" href="{$url->postLink($recentpost)}">{$recentpost->getTopic()}</a> [{$recentpost->getNumReads()} 次]</li>
{/foreach}
</ul>


<!--Top Read Posts-->
{if $topreadposts->isEnabled()}
<h3>熱門文章</h3>
<ul>
{assign var=readposts value=$topreadposts->getTopReadPosts()}
{if !empty($readposts) }
{foreach from=$readposts item=readpost}
<li><a href="{$url->postLink($readpost)}">{$readpost->getTopic()}</a> [{$readpost->getNumReads()} 次]</li>
{/foreach}
{/if}
</ul>
{/if}


{if $recentcomments->isEnabled()}
<h3>最新迴響</h3>
{assign var=comments value=$recentcomments->getRecentComments()}
<ul>
{foreach from=$comments item=comment}
{assign var=commentpostid value=$comment->getArticleId()}
{assign var=commentpost value=$recentcomments->getArticle($commentpostid)}
<li>
{if $comment->getUserUrl() != ""}
<b><a href="{$comment->getUserUrl()}"}>{$comment->getUsername()}</a></b>
{else}
<b>{$comment->getUsername()}</b>
{/if}
：<a title="View comments by {$comment->getUsername()}" href="{$url->postPermalink($commentpost)}#{$comment->getId()}">{$comment->getText()|truncate:80:"..."|strip_tags}</a></li>
{/foreach}
</ul>
{/if}


<!--categories 文章分類-->
<h3>{$locale->tr("categories")}</h3>
<ul>
{foreach from=$articlecategories item=articleCategory}
<li><a href="{$url->categoryRssLink($articleCategory)}"><img src="{$url->getUrl("/imgs/rss_logo_small.gif")}" style="border:0px;" alt="RSS 0.90" align="middle" /></a>
<a href="{$url->categoryLink($articleCategory)}">{$articleCategory->getName()}</a> [{$articleCategory->getNumArticles()}]</li>
{/foreach}
</ul>

<h3>訂閱部落格</h3>
<ul>
<!--
<a class="nodecoration" title="Link to the RSS 0.90 feed." href="http://feeds.feedburner.com/PsLove/rss09"><img src="{$url->getUrl("/imgs/rss090_logo.gif")}" style="border:0px;" alt="RSS 0.90" /></a>
<a class="nodecoration" title="Link to the RSS 1.0 feed." href="http://feeds.feedburner.com/PsLove/rss1"><img src="{$url->getUrl("/imgs/rss10_logo.gif")}" style="border:0px;" alt="RSS 1.0" /></a><br/>
-->
<a class="nodecoration" title="Link to the RSS 2.0 feed." href="http://feeds.feedburner.com/PsLove/rss2"><img src="{$url->getUrl("/imgs/rss20_logo.gif")}" style="border:0px;" alt="RSS 2.0" /></a>
<a class="nodecoration" title="Link to the Atom 0.3 feed." href="http://feeds.feedburner.com/PsLove/atom"><img src="{$url->getUrl("/imgs/atom_logo.png")}" style="border:0px;" alt="Atom 0.3" /></a><br/>
<a href="http://fusion.google.com/add?feedurl=http://feeds.feedburner.com/PsLove/rss2"><img src="{$url->getUrl("/imgs/add-to-google.jpg")}" alt="Google Reader or Homepage" border="0"></a>
<a href="http://add.my.yahoo.com/rss?url=http://feeds.feedburner.com/PsLove/rss2"><img src="{$url->getUrl("/imgs/add-yahoo.jpg")}" border="0" alt="Add to My Yahoo!"></a><br>
<a href="http://my.msn.com/addtomymsn.armx?id=rss&ut=http://feeds.feedburner.com/PsLove/rss2&ru=http://stin.csie.org/lifetype/"><img src="{$url->getUrl("/imgs/add-msn.gif")}" border="0"></a>
<a href="http://www.feedster.com/myfeedster.php?action=addrss&rssurl=http://feeds.feedburner.com/PsLove/rss2&confirm=no"><img src="{$url->getUrl("/imgs/feedster.gif")}" alt="myFeedster" border="0" /></a><br>
<a href="http://www.newsgator.com/ngs/subscriber/subext.aspx?url=http://feeds.feedburner.com/PsLove/rss2"><img src="http://www.newsgator.com/images/ngsub1.gif" alt="Subscribe in NewsGator Online" border="0"></a>
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<a href="http://feeds.feedburner.com/PsLove/rss2"><img src="http://feeds.feedburner.com/~fc/PsLove/rss2?bg=99CCFF&amp;fg=444444&amp;anim=1" height="26" width="88" style="border:0" alt="" /></a></ul>


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</ul>

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<h3>資料統計</h3>
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</div>

[polaristin]

抱歉
看來我沒有好好搜尋
剛用其他字搜尋後發現了這篇
http://forum.lifetype.org.tw/index.php?topic=1259.0
已照著方法解決了問題
再次謝謝mark跟lss ^^

[markwu]

不會吧！這是完全不同的問題耶！呵呵！

還好你有去看 plog_articles，否則這問題可能就成了懸案了！

恭喜你解決了！

Mark