折腾完GAE上Micolog的sitemap出错问题
上次改了一下博客后，发现Google不收录新发表的文章，最后发现原因是www.pugwoo.com/sitemap 不正常，出现"A server error occurred. Please contact the administrator."错误。上次不知道怎么搞着搞着就好了，前两天稍微改了下主题，又出现这个问题。
主题的修改和Sitemap生成本身就是毫不相干的事。Micolog在本地测试是能够生成Sitemap的，上传到GAE就出错了。问题很明显，和博客现有的数据有关，如果我清空GAE上的数据那肯定能解决问题，只是下次呢，烦死了这个问题。
接下来就是折腾了，在GAE的出错信息里看不出哪里出问题，于是就不停地注释代码，上传，测试，一行一行排除。发现是blog.py中SitemapHandler这一行：
entries = Entry.all().filter('published =',True).order('-date').fetch(g_blog.sitemap_entries)
中的order('-date')出错，即去掉它就正常了。而www.pugwoo.com/feed 的获取代码是：
entries = Entry.all().filter('entrytype =','post').filter('published =',True).order('-date').fetch(10)
feed工作正常，它就多了个filter('entrytype =','post')，把Sitemap加上这个，竟正常了，奇怪。看了一下Entry表，它的entrytype就两种：post和page，它们的其它属性完全一样，难道是page类出问题了，换成这句：
entries = Entry.all().filter('entrytype =','page').filter('published =',True).order('-date').fetch(g_blog.sitemap_entries)
居然也没有错误。为什么合起来就有问题呢？真是想不明白，还是GAE本身有bug吧，期待高手解答。由于page类文章一般很少，所以将本文最开头SitemapHandler里那一行换成：
entries = Entry.all().filter('entrytype =','page').filter('published =',True).order('-date').fetch(g_blog.sitemap_entries)
entries = Entry.all().filter('entrytype =','post').filter('published =',True).order('-date').fetch(g_blog.sitemap_entries) + entries
就好了。看起来还是没找出问题所在，下一次说不定又来了...
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20 条评论
我要留言zpcms 发表于 2010-02-25 at 14:27 回复 引用
我的出现http://www.zpcms.org.ru/sitemap，不知如何解决----
pugwoo 发表于 2010-02-25 at 16:13 回复 引用
这很可能是index.yaml那个文件有问题，我的这个文件的内容是
indexes:
# AUTOGENERATED
# This index.yaml is automatically updated whenever the dev_appserver
# detects that a new type of query is run. If you want to manage the
# index.yaml file manually, remove the above marker line (the line
# saying "# AUTOGENERATED"). If you want to manage some indexes
# manually, move them above the marker line. The index.yaml file is
# automatically uploaded to the admin console when you next deploy
# your application using appcfg.py.
- kind: Comment
properties:
- name: entry
- name: date
- kind: Comment
properties:
- name: entry
- name: date
direction: desc
- kind: Entry
properties:
- name: categorie_keys
- name: date
direction: desc
- kind: Entry
properties:
- name: categorie_keys
- name: published
- name: date
direction: desc
- kind: Entry
properties:
- name: entry_parent
- name: entrytype
- name: published
- name: menu_order
- kind: Entry
properties:
- name: entrytype
- name: date
direction: desc
- kind: Entry
properties:
- name: entrytype
- name: published
- name: date
- kind: Entry
properties:
- name: entrytype
- name: published
- name: date
direction: desc
- kind: Entry
properties:
- name: entrytype
- name: published
- name: post_id
- kind: Entry
properties:
- name: entrytype
- name: published
- name: post_id
direction: desc
- kind: Entry
properties:
- name: entrytype
- name: published
- name: readtimes
direction: desc
- kind: Entry
properties:
- name: entrytype
- name: published
- name: slug
- name: date
- kind: Entry
properties:
- name: published
- name: tags
- name: date
direction: desc
- kind: Entry
properties:
- name: tags
- name: post_id
direction: desc
zpcms 发表于 2010-02-26 at 07:58 回复 引用
pugwoo 发表于 2010-02-26 at 08:27 回复 引用
呵呵，不用客气。
xioxu 发表于 2010-10-24 at 18:42 回复 引用
在我平时使用visual studio的时候，我们可以轻松设置一下，等抛异常的时候，
代码直接断在了出异常的地方，我找了半天没发现Eclipse有这个功能，
我不知道您这方面是否有些经验可以share一下？
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