eXist-db 通过 controller.xql(URL 映射)向模板传递参数 [英] eXist-db passing parameters to templates through controller.xql (URL mapping)
问题描述
我正在使用 eXist 默认安装的 controller.xql
和 view.xq
来处理 eXist-db 4.2.1 和 Xquery 3.1.
我有一个 document.html
,我将任何传入的 url 以 /doc/some-requested-doc-id
结构传递给它,以生成动态-基于 some-requested-doc-id
创建的页面.
因此,传入的 url 可以是 http://localhost:8080/exist/apps/deheresi/doc/MS609-0001
或http://localhost:8080/exist/apps/deheresi/doc/MS609-0001.xml
他们的待遇是一样的...
在文件 controller.xql
我有一个匹配这个请求的条件,它标识 /doc/
并清理预期的 some-requested-doc-id
使用传递给参数的 functionname="currentdoc"
:
<代码> [...]else if (starts-with($exist:path, "/doc/")) then(:去掉任何扩展名并将全局变量重命名为 .xml :)<调度xmlns="http://exist.sourceforge.net/NS/exist"><forward url="{$exist:controller}/document.html"><add-parameter name="currentdoc"value="{concat(functx:substring-before-match($exist:resource,'[.]'),'.xml')}"/></转发><查看><forward url="{$exist:controller}/modules/view.xql"/></查看></调度>[...]
请求的 .html 文件如下,它本身调用其他 HTML 模板和/或在 XQuery 中动态创建的内容:
<div data-template="document:title-bar"/><div class="col-sm-12"><div class="col-md-2 侧边栏"><div data-template="document:doc-sidebar-sub1"/><div data-template="document:doc-sidebar-sub2"/><div data-template="document:doc-sidebar-sub3"/><div data-template="document:doc-sidebar-sub4"/><div class="col-md-10 文档视图"><div data-template="document:doc-xsl-docview"/>
5 data-template="document:...
调用 依赖于
提供的相同参数,例如
声明函数 document:title-bar($node 作为 node(),$model as map(*),$currentdoc 作为 xs:string){让 $persid := person:person-name(data(doc(concat($globalvar:URIdata,$currentdoc))/tei:TEI/tei:text//tei:persName[@role="dep"]/@nymRef))让 $doctypeen := data(doc(concat($globalvar:URIdata,$currentdoc))/tei:TEI/tei:text//tei:div[@type="doc_type"]/@subtype)让 $x :=<div class="col-md-12 document-title"><h2><span class="en">{$doctypeen}: </span><span class="fr">{document:doc-type-french($doctypeen)} : </span>{$persid}
返回 $x};
即使我在模块 controller.xql
中硬编码参数:
我仍然遇到同样的错误,如果我在模板调用中对参数进行硬编码,则不会发生这种情况:
参数 3 的实际基数与函数签名中声明的基数:文档:标题栏($node 作为节点(),$model 作为地图,$currentdoc as xs:string) item()*.预期基数:正好 1,得到 0.
预期基数"表明参数没有进入函数?
如果我将上面函数中参数的顺序改为
声明函数 document:title-bar($currentdoc 作为 xs:string,$node 作为 node(),$model as map(*))
我收到一个不同的错误:
提供的函数参数 2:文档:标题栏($currentdoc as xs:string,$node 作为 node(), $model 作为 map) item()* 没有匹配所需的类型.必需的类型节点(),得到了地图.`
非常感谢.
指令需要移到第二个
指令——以便 modules/view.xql
可以访问参数.此控制器片段的更正版本是:
else if (starts-with($exist:path, "/doc/")) then(:去掉任何扩展名并将全局变量重命名为 .xml :)<调度xmlns="http://exist.sourceforge.net/NS/exist"><forward url="{$exist:controller}/document.html"/><查看><forward url="{$exist:controller}/modules/view.xql"><add-parameter name="currentdoc" value="{concat(functx:substring-before-match($exist:resource,'[.]'),'.xml')}"/></转发></查看></调度>
模板文档也显示了这一点 - 请参阅此处设置"部分下的第二个代码示例:https://exist-db.org/exist/apps/doc/templating#D3.35.
(您引用的答案中有错误 - 我现在已更正.抱歉,感谢您的全面测试和清晰的问题!)
I am working with eXist-db 4.2.1 and Xquery 3.1 using the eXist's default installation of controller.xql
and view.xq
.
I have a document.html
to which I pass any incoming url structured with /doc/some-requested-doc-id
at the end to produce a dynamically-created page based on some-requested-doc-id
.
So, the incoming url can be either http://localhost:8080/exist/apps/deheresi/doc/MS609-0001
or
http://localhost:8080/exist/apps/deheresi/doc/MS609-0001.xml
and they are treated the same...
In the file controller.xql
I have a condition for matching this request, which identifies /doc/
and cleans up the expected some-requested-doc-id
using a function which is passed to parameter name="currentdoc"
:
[...]
else if (starts-with($exist:path, "/doc/")) then
(: strip out any extensions and rename global variable as .xml:)
<dispatch xmlns="http://exist.sourceforge.net/NS/exist">
<forward url="{$exist:controller}/document.html">
<add-parameter name="currentdoc"
value="{concat(functx:substring-before-match($exist:resource,'[.]'),'.xml')}"/>
</forward>
<view>
<forward url="{$exist:controller}/modules/view.xql"/>
</view>
</dispatch>
[...]
The requested .html file is as follows, which itself calls other HTML templates and/or dynamically created content in XQuery:
<div data-template="templates:surround" data-template-with="templates/site_wrapper.html" data-template-at="content">
<div data-template="document:title-bar"/>
<div class="col-sm-12">
<div class="col-md-2 sidebar">
<div data-template="document:doc-sidebar-sub1"/>
<div data-template="document:doc-sidebar-sub2"/>
<div data-template="document:doc-sidebar-sub3"/>
<div data-template="document:doc-sidebar-sub4"/>
</div>
<div class="col-md-10 document-view">
<div data-template="document:doc-xsl-docview"/>
</div>
</div>
</div>
The 5 data-template="document:...
calls depend on the same parameter provided by <add-parameter>
, for example <div data-template="document:title-bar"/>
calls:
declare function document:title-bar(
$node as node(),
$model as map(*),
$currentdoc as xs:string)
{
let $persid := person:person-name(data(doc(concat($globalvar:URIdata,$currentdoc))/tei:TEI/tei:text//tei:persName[@role="dep"]/@nymRef))
let $doctypeen := data(doc(concat($globalvar:URIdata,$currentdoc))/tei:TEI/tei:text//tei:div[@type="doc_type"]/@subtype)
let $x :=
<div class="col-md-12 document-title">
<h2><span class="en">{$doctypeen}: </span><span class="fr">{document:doc-type-french($doctypeen)} : </span>{$persid}</h2>
</div>
return $x
};
Even if I hard-code the parameter in the module controller.xql
:
<add-parameter name="currentdoc" value="MS609-00001.xml"/>
I still get the same error, which doesn't happen if I hard code the parameter in the template call:
The actual cardinality for parameter 3 does not match the
cardinality declared in the function's signature:
document:title-bar($node as node(), $model as map,
$currentdoc as xs:string) item()*.
Expected cardinality: exactly one, got 0.
The 'expected cardinality' suggests that the parameter is not coming into the function?
EDIT:
If I change the order of parameters in the function above to
declare function document:title-bar(
$currentdoc as xs:string,
$node as node(),
$model as map(*))
I get a different error:
Supplied argument 2 of function:
document:title-bar($currentdoc as xs:string,
$node as node(), $model as map) item()* does not
match required type. Required type node(), got map. `
Many thanks in advance.
The <add-parameter>
directive needs to be moved to the 2nd <forward>
directive—so that modules/view.xql
has access to the parameter. The corrected version of this fragment of your controller is:
else if (starts-with($exist:path, "/doc/")) then
(: strip out any extensions and rename global variable as .xml:)
<dispatch xmlns="http://exist.sourceforge.net/NS/exist">
<forward url="{$exist:controller}/document.html"/>
<view>
<forward url="{$exist:controller}/modules/view.xql">
<add-parameter name="currentdoc" value="{concat(functx:substring-before-match($exist:resource,'[.]'),'.xml')}"/>
</forward>
</view>
</dispatch>
The templating documentation also shows this - see the 2nd code sample under the "Set up" section here: https://exist-db.org/exist/apps/doc/templating#D3.35.
(There was a mistake in the answer you referenced - which I have now corrected. Apologies, and thanks for your thorough testing and well-articulated questions!)
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