如何从 XSLT TBB 获取关键字的“键"? [英] How can I get the 'key' of a keyword from an XSLT TBB?
问题描述
我正在使用 XSLT TBB(在 Tridion 2011 SP1 上使用 XSLT Mediator)从关键字中检索键值.
I am working on the XSLT TBB (using the XSLT Mediator on Tridion 2011 SP1) to retrieve the key Value from the Keyword.
我的关键字看起来像这样.
My Keyword looks like this.
Value: Some Value
Key: Its ID is 123
这是一个普通的关键字.
It's a normal Keyword.
我创建了一个带有字段的架构.将从列表和类别中选择值.
I have created a schema with a field. The values will be selected from List and from Category.
组件 Source 如下所示:这是直接取自 Tridion UI 组件的组件源.
The component Source looks like this: This is the Component source directly taken from the component of Tridion UI.
<Content xmlns="Some Name space">
<keywordlink xlink:href="tcm:202-9737-1024" xlink:title="Some Value"
xmlns:xlink="http://www.w3.org/1999/xlink">Some Value</keywordlink>
</Content>
当我从模板构建器观察 tcm:Component 源时，我发现该字段没有属性.
When I observed the tcm:Component source from template builder, I observed that there are no attributes present for the field.
<Content xmlns="Some Name space">
<keywordlink>Some Value</keywordlink>
</Content>
我想检索关键字的 Key 值.
I want to retrieve the Key value of the keyword.
我写了一个这样的 XSLT TBB.我正在使用 XSLT 中介器来执行 XSLT TBB.
I wrote a XSLT TBB like this. I am using XSLT mediator to execute XSLT TBBs.
<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:msxsl="urn:schemas-microsoft-com:xslt" xmlns:simple="Some Name space"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:tcm="http://www.tridion.com/ContentManager/5.0"
xmlns:xh="http://www.w3.org/1999/xhtml"
xmlns:i="http://www.w3.org/2001/XMLSchema-instance"
xmlns:transform-ext="urn:tridion:transform-ext"
xmlns="http://www.w3.org/1999/xhtml"
exclude-result-prefixes="#default simple xh">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes" />
<xsl:output method="xml" indent="yes" omit-xml-declaration="yes" />
<xsl:template match="/">
<xsl:apply-templates
select="tcm:Component/tcm:Data/tcm:Content/simple:Content" />
</xsl:template>
<xsl:template match="simple:Content">
<xsl:value-of select="simple:keywordlink/@*"/>
<xsl:value-of select=document(simple:keywordlink/@xlink:href)/>
</xsl:template>
<xsl:stylesheet>
我得到空白输出.我想获取关键字的键值.
I am getting blank output. I want to get the key value of a keyword.
我得到空白输出，因为在 tcm:Component XML 中，没有属性.
I am getting blank output because in tcm:Component XML, there are no attributes.
我不确定如何导航到该关键字.
I am not sure how can I navigate to that keyword.
我应该检索 Key 的值，即它的 ID 是 123".
I should retrieve the value of Key i.e. "Its ID is 123".
有人可以帮忙吗?
推荐答案
仅使用 XSLT 中介器似乎不可能获得指向关键字字段中引用关键字的 xlink:href.
It seems it's impossible to get an xlink:href to the referred keyword in a Keyword field using just the XSLT Mediator.
为了克服这个问题，我创建了一个 .NET 化合物，它膨胀"了 XML 中的额外关键字信息.您必须将此组合放在 XSLT 组合之前.
To overcome this I created a .NET compound that "inflates" the extra keyword info in the XML. You'll have to place this compound just before the XSLT compound.
代码:
namespace ContentManagement.TBB.Templates
{
[TcmTemplateTitle("Inflate Keyword Info")]
public class GetExtendedComponent : TemplateBase
{
public override void Transform(Engine engine, Package package)
{
Initialize(engine, package);
Component component = GetComponent();
XmlElement componentXml = component.ToXml();
XmlNamespaceManager ns = new XmlNamespaceManager(componentXml.OwnerDocument.NameTable);
ns.AddNamespace("ns", component.Schema.NamespaceUri);
ItemFields fields = new ItemFields(component.Content, component.Schema);
InflateKeywords(fields, (XmlElement)componentXml.SelectSingleNode(String.Format("//ns:{0}", component.Schema.RootElementName), ns));
ItemFields metaFields = new ItemFields(component.Metadata, component.MetadataSchema);
InflateKeywords(metaFields, (XmlElement)componentXml.SelectSingleNode("//ns:Metadata", ns));
Item xmlItem = package.CreateStringItem(ContentType.Component, componentXml.OuterXml);
package.Remove(package.GetByName(Package.ComponentName));
package.PushItem(Package.ComponentName, xmlItem);
}
private void InflateKeywords(ItemFields fields, XmlElement element)
{
XmlNamespaceManager ns = new XmlNamespaceManager(element.OwnerDocument.NameTable);
ns.AddNamespace("ns", element.NamespaceURI);
Logger.Debug("NS: " + element.NamespaceURI);
foreach (ItemField field in fields)
{
if (field is KeywordField)
{
KeywordField keywordField = (KeywordField)field;
XmlNodeList nodes = element.SelectNodes(String.Format("./ns:{0}", keywordField.Name), ns);
foreach (XmlNode node in nodes)
{
XmlElement kwelement = (XmlElement)node;
Logger.Debug(String.Format("Keyword titel: {0}", keywordField.Value.Title));
Logger.Debug(String.Format("Keyword Element Value: {0}", kwelement.InnerText));
kwelement.SetAttribute("href", "http://www.w3.org/1999/xlink", keywordField.Values.First(v => v.Title.Equals(kwelement.InnerText)).Id);
kwelement.SetAttribute("type", "http://www.w3.org/1999/xlink", "simple");
kwelement.SetAttribute("title", "http://www.w3.org/1999/xlink", kwelement.InnerText);
}
}
else if (field is EmbeddedSchemaField)
{
EmbeddedSchemaField embedField = (EmbeddedSchemaField)field;
XmlNodeList nodes = element.SelectNodes(String.Format("./ns:{0}", embedField.Name), ns);
int i = 0;
foreach (XmlNode node in nodes)
{
XmlElement embedElement = (XmlElement)node;
InflateKeywords(embedField.Values[i], embedElement);
i++;
}
}
}
}
}
}
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