DedeCms用SQL语句调用数据库任意内容方法
<p><span style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'>如何任意调用数据库中的内容呢?先举个例子:大家都知道Dede后台有个频道模型里面有添加单页文档的功能,但如何在首页调用单页文档的内容呢,现在给大家讲下如何使用: </span><br style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'><br style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'><span style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'>1.首页在后台单页文档管理里添加一个单页文档,内容编辑框输入你要的内容生成。 </span><br style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'><br style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'><span style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'>2.在需要调用单页文档的地方加入SQL万用标签{dede:sql sql="select body from dede_sgpage where aid=2"}{/dede:sql} 相信熟悉SQL语言的朋友很容易看懂这句含义。意思其实就是选择数据表dede_sgpage 的body字段输入,aid=2这里的2表示你创建单页文档ID数字,你使用时做下相应修改即可。 </span><br style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'><br style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'><span style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'>又如这句SQL标签样例代码 </span></p>
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<span><u>复制代码</u></span></p>
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代码如下:</p>
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{dede:sql sql="select content from dede_arctype where id=2"} <br>
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{/dede:sql} </p>
<p>
<br style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'><span style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'>根据上面的例子,应该很好理解了,这里主要说明一下cn_substr表示截取600个字符也就是300个汉字。Html2Text代表把含有HTML的字符过滤掉,只显示文本。 </span><br style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'><br style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'><span style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'>其实除了上面的例子外,在Dede系统里面,我可以可以自由使用SQL语句来配合织梦标签进行更多的个性化调用。他们的基本参照格式为: </span></p>
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<span><u>复制代码</u></span></p>
<p>
代码如下:</p>
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{dede:sql sql="select 字段 From 表名称 where 条件语句"} <br>
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{/dede:sql} </p>
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<br style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'><span style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'>由上面这种基本格式,我们就可以基本转换出一条调用文档列表的调用标签了,代码为: </span></p>
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<span><u>复制代码</u></span></p>
<p>
代码如下:</p>
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{dede:sql sql="select * From dede_archives limit 10"} <br>
<li>·<a href="/plus/view.php?aid="></a></li> <br>
{/dede:sql} </p>
<p>
<br style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'><span style='font-family: tahoma, arial, "Microsoft YaHei"; font-size: 14px;'>大家看到了上面的文档链接的底层模板地址的是动态的,那么我们要怎么样来进行转换,让他链接到静态地址呢,这里我们只需要对进行一下转换,转换后的完整代码为: </span></p>
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<span><u>复制代码</u></span></p>
<p>
代码如下:</p>
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{dede:sql sql="SELECT * FROM dede_archives limit 10"} <br>
<li>·<a href=" $id=@me;@me='';$url=GetOneArchive($id);@me=$url['arcurl'];" title="" target="_blank"></a></li> <br>
{/dede:sql} </p>
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