Re: find unique codes

Hi,

  I am still struggling with this problem.  I was
thinking, is there a way to use declare one xsl:key
across two different types of elements,
ExtendedAttributeDefinition/@ExtendedAttributeDefinitionCode
and ExtendedAttribute/@ExtendedAttributeCode?

Thanks,
Xiaocun

--- Xiaocun Xu <xiaocunxu@xxxxxxxxx> wrote:
> Hi,
> 
>   I have the need to find unique attribute codes
> across two different types of elements:
> ExtendedAttributeDefinition and ExtendedAttribute. 
> Following is an example, the input has two
> ExtendedAttributeDefinition elements with code Color
> and Size, as well as two ExtendedAttribute elements
> with code Color and New.  What I need in output is
> the
> two ExtendedAttributeDefinition elements with code
> Color and Size, as well as the ExtendedAttribute
> element with code New.  The duplicated
> ExtendedAttribute element with code Color is
> eliminated.
>   Attached are the input XML and desired output XML,
> with work in progress XSL.  I can get all unique
> ExtendedAttribute codes across all lineitems via
> key,
> how can I compare this list with the
> ExtendedAttributeDefinition codes and take only the
> unique ExtendedAttribute codes?
> 
> Much thanks for any suggestions,
> Xiaocun
> 
> Input XML:
> <RFQDomainAttributeDefinition Domain="line_item">
> 	<ExtendedAttributeDefinition
> ExtendedAttributeDefinitionCode="Color"/>	
> <ExtendedAttributeDefinition
> ExtendedAttributeDefinitionCode="Size"/>
> </RFQDomainAttributeDefinition>
> <Requisition>
> <LineItem LineItemName="item1">
> <ExtendedAttribute ExtendedAttributeCode="Color"/>
> <ExtendedAttribute ExtendedAttributeCode="New"/>
> </LineItem>
> 
> Desired Output XML:
> <ExtendedAttributeDefinition
> ExtendedAttributeDefinitionCode="Color"/>
> <ExtendedAttributeDefinition
> ExtendedAttributeDefinitionCode="Size"/>
> <ExtendedAttribute ExtendedAttributeCode="New"/>
> 
> work in progress XSL:
> <xsl:key name="extended-attrs-lineitem-index"
> match="LineItem/ExtendedAttribute"
> use="@ExtendedAttributeCode"/>
> 
> <xsl:variable name="extended-attrs-def-lineitem"
> select="RFQDomainAttributeDefinition[@Domain =
> 'line_item']/ExtendedAttributeDefinition"/>
> 
> <xsl:variable name="extended-attrs-lineitem"
>
select="Requisition/LineItem/ExtendedAttribute[generate-id()
> = generate-id(key('extended-attrs-lineitem-index',
> @ExtendedAttributeCode))]"/>
> 
> 
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