工具
本期目标
根据WordPress文章保存和草稿保存分析程序设计
首先我们打开WordPress登录到控制台后随便保存草稿和文章,然后导出数据库中posts表增加内容如下:
{
"RECORDS":[
{
"ID":"329",
"post_author":"1",
"post_date":"02-16-2017 09:57:29",
"post_date_gmt":"02-16-2017 01:57:29",
"post_title":"[java 手把手教程][第二季]java 后端博客系统文章系统——No4",
"post_excerpt":"",
"post_status":"inherit",
"comment_status":"closed",
"comment_count":"0",
"ping_status":"closed",
"post_password":"",
"post_name":"328-revision-v1",
"to_ping":"",
"pinged":"",
"post_modified":"02-16-2017 09:57:29",
"post_modified_gmt":"02-16-2017 01:57:29",
"post_content_filtered":"",
"post_parent":"328",
"guid":"http://acheng1314.cn/?p=329",
"menu_order":"0",
"post_type":"revision",
"post_mime_type":"",
"comment_count(2)":"0"
},
{
"ID":"328",
"post_author":"1",
"post_date":"02-16-2017 09:58:19",
"post_date_gmt":"02-16-2017 01:58:19",
"post_title":"[java 手把手教程][第二季]java 后端博客系统文章系统——No4",
"post_excerpt":"",
"post_status":"publish",
"comment_status":"open",
"comment_count":"0",
"ping_status":"open",
"post_password":"",
"post_name":"java-%e6%89%8b%e6%8a%8a%e6%89%8b%e6%95%99%e7%a8%8b%e7%ac%ac%e4%ba%8c%e5%ad%a3java-%e5%90%8e%e7%ab%af%e5%8d%9a%e5%ae%a2%e7%b3%bb%e7%bb%9f%e6%96%87%e7%ab%a0%e7%b3%bb%e7%bb%9f-no4",
"to_ping":"",
"pinged":"",
"post_modified":"02-16-2017 09:58:19",
"post_modified_gmt":"02-16-2017 01:58:19",
"post_content_filtered":"",
"post_parent":"0",
"guid":"http://acheng1314.cn/?p=328",
"menu_order":"0",
"post_type":"post",
"post_mime_type":"",
"comment_count(2)":"0"
},
{
"ID":"327",
"post_author":"1",
"post_date":"02-14-2017 23:20:15",
"post_date_gmt":"02-14-2017 15:20:15",
"post_title":"我的草稿",
"post_excerpt":"",
"post_status":"inherit",
"comment_status":"closed",
"comment_count":"0",
"ping_status":"closed",
"post_password":"",
"post_name":"323-revision-v1",
"to_ping":"",
"pinged":"",
"post_modified":"02-14-2017 23:20:15",
"post_modified_gmt":"02-14-2017 15:20:15",
"post_content_filtered":"",
"post_parent":"323",
"guid":"http://acheng1314.cn/?p=327",
"menu_order":"0",
"post_type":"revision",
"post_mime_type":"",
"comment_count(2)":"0"
},
{
"ID":"326",
"post_author":"1",
"post_date":"02-14-2017 23:20:01",
"post_date_gmt":"02-14-2017 15:20:01",
"post_title":"",
"post_excerpt":"",
"post_status":"inherit",
"comment_status":"closed",
"comment_count":"0",
"ping_status":"closed",
"post_password":"",
"post_name":"323-revision-v1",
"to_ping":"",
"pinged":"",
"post_modified":"02-14-2017 23:20:01",
"post_modified_gmt":"02-14-2017 15:20:01",
"post_content_filtered":"",
"post_parent":"323",
"guid":"http://acheng1314.cn/?p=326",
"menu_order":"0",
"post_type":"revision",
"post_mime_type":"",
"comment_count(2)":"0"
},
{
"ID":"325",
"post_author":"1",
"post_date":"02-10-2017 22:34:41",
"post_date_gmt":"00-00-00 00:00:00",
"post_title":"自动草稿",
"post_excerpt":"",
"post_status":"auto-draft",
"comment_status":"open",
"comment_count":"0",
"ping_status":"open",
"post_password":"",
"post_name":"",
"to_ping":"",
"pinged":"",
"post_modified":"02-10-2017 22:34:41",
"post_modified_gmt":"00-00-00 00:00:00",
"post_content_filtered":"",
"post_parent":"0",
"guid":"http://acheng1314.cn/?p=325",
"menu_order":"0",
"post_type":"post",
"post_mime_type":"",
"comment_count(2)":"0"
},
{
"ID":"323",
"post_author":"1",
"post_date":"02-14-2017 23:20:15",
"post_date_gmt":"00-00-00 00:00:00",
"post_title":"我的草稿",
"post_excerpt":"",
"post_status":"draft",
"comment_status":"open",
"comment_count":"0",
"ping_status":"open",
"post_password":"",
"post_name":"",
"to_ping":"",
"pinged":"",
"post_modified":"02-14-2017 23:20:15",
"post_modified_gmt":"02-14-2017 15:20:15",
"post_content_filtered":"",
"post_parent":"0",
"guid":"http://acheng1314.cn/?p=323",
"menu_order":"0",
"post_type":"post",
"post_mime_type":"",
"comment_count(2)":"0"
}
]
}
在上面的数据中我们已经删除了文章内容的数据(数据量太大,不方便查阅)。然后我们仔细分析上面的json数据,我们可以得出结论如下:
通过上面的对比我们大致可以得出这样一个结论:
---->正式发布
"post_status":"publish",
"comment_status":"open",
"ping_status":"open",
"post_name":"java-%e6%89%8b%e6%8a%8a%e6%89%8b%e6%95%99%e7%a8%8b%e7%ac%ac%e4%ba%8c%e5%ad%a3java-%e5%90%8e%e7%ab%af%e5%8d%9a%e5%ae%a2%e7%b3%bb%e7%bb%9f%e6%96%87%e7%ab%a0%e7%b3%bb%e7%bb%9f-no4",
"post_type":"post",
"post_parent":"0",
---->历史记录
"post_status":"inherit",
"comment_status":"closed",
"ping_status":"closed",
"post_name":"328-revision-v1",
"post_type":"revision",
"post_parent":"328",
文章分组相关分析
SELECT
`ID`,
`post_title`,
`post_date`,
`post_content`
FROM
`wp_posts`
WHERE
`post_type` = 'post'
AND
`post_status` = 'publish'
ORDER BY
`ID`
上面的语句能够查找出来公开的文章,文章ID一目了然。
同时我们观察数据库可以得出跟文章的归类相关的数据库有:
但是这么多表都是文章分类相关的东西,那么文章分类又分为什么些呢?按照WordPress的简单构架支撑大量的数据来看,那么我们可以肯定文章标签和目录分类肯定是在一起的。所以我们先看最根本的wp_terms。
term_id name slug term_group 1 java web java-web 0 2 C语言学习 how2use_c 0 3 Android开发 makeandroid 0 4 综合总结 all_log 0 5 个人生活 myself_life 0 6 post-format-aside post-format-aside 0 7 转载 from_others 0 8 Android Coder android-coder 0 9 友情链接 %e5%8f%8b%e6%83%85%e9%93%be%e6%8e%a5 0 10 JavaWeb javaweb 0 11 java web java-web 0 12 Spring spring 0 13 Mybatis mybatis 0 14 java后端 java%e5%90%8e%e7%ab%af 0 15 JavaWeb javaweb 0 16 MySQL数据库 mysql%e6%95%b0%e6%8d%ae%e5%ba%93 0 17 全栈教程 %e5%85%a8%e6%a0%88%e6%95%99%e7%a8%8b 0 18 java java 0
上面这张表是我线上服务器上面的wp_term表,可能我们暂时不明白什么意思,不过问题不大。我们接着看wp_term_taxonomy。
term_taxonomy_id term_id taxonomy description parent count 1 1 category 0 17 2 2 category 0 0 3 3 category 0 20 4 4 category 0 6 5 5 category 0 1 6 6 post_format 0 44 7 7 category 0 8 8 8 link_category 0 2 9 9 nav_menu 0 0 10 10 link_category 0 0 11 11 post_tag 0 2 12 12 post_tag 0 4 13 13 post_tag 0 4 14 14 post_tag 0 3 15 15 post_tag 0 2 16 16 post_tag 0 3 17 17 post_tag 0 3 18 18 post_tag 0 1
通过上面这种表我们就可以明白了term_id所对应的name分别是什么用的,他们分别有文章分组、文章标签、链接标记等。
但是说这么多都没把上面文章的文章分类在哪找到,所以我们接着看wp_term_relationships表里面的东西。
object_id term_taxonomy_id term_order 1 8 0 2 8 0 9 4 0 9 6 0 11 4 0 11 6 0 16 3 0 16 6 0 ··· ··· ···
表里面数据还有很多此处暂时省略。
上面表中的object_id顾名思义就是说对象的ID,说明它不单是文章也还有其他分类的信息。
我们再看看我们线上的wp_posts(文章)表,里面的简略内容如下:
ID post_title post_date post_content 9 IT产品文档列表 2015-09-22 16:44:48 内容省略··· 11 建站伊始,一切从头再来,本站用wordpress搭建,基于PHP。 2015-09-22 16:45:32 ···
其实数据不需要那么多,我们只需要一丢丢数据简单对比就能知道结果了。
term_id taxonomy category post_format
term_id name slug term_group 4 综合总结 all_log 0 6 post-format-aside post-format-aside 0
所以最后我们通过这样就可以明白分类信息的大概查找结构,文章分类的大概查找如下:
文章id ➡ wp_term_relationships中的object_id对应的term_taxonomy_id ➡ wp_term_taxonomy的ID可以看到分别是什么分类同时可以查找到term_id ➡ 最后在wp_term表中根据term_id可以查找到具体的名称。
至此分类信息基本查找完成。
总结