arc:enum Can it take a dynamic range?

Data Integration CData Arc
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1

In a Script connector, based on a value I’ve calculated earlier in the script (numberofpallets) , I need to repeat an XML structure multiple times. The only thing that changes is the <PalletID>

I’m trying this

<arc:set attr="output.data">  <arc:enum range="1..[output.header:numberofpallets]">    <OrderStatusUpdate xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">      <EventTime>2024-07-03T13:03:00.0000+01:00</EventTime>      <OrderNo>200766</OrderNo>...      <Longitude>Not Available</Longitude>      <PalletID>[_index]</PalletID>    </OrderStatusUpdate>  </arc:enum></arc:set>

But get the error “Invalid range, e.g of valid ranges are 1..20, a..z, A..z, z..a etc :”

2

Okay, this is crude, but it works up to 99 pallets…

<arc:set attr="data.pallets" value=""/><arc:enum range="0..99">  <arc:if attr="output.header:numberofpallets" value="[_value]" operator="greaterthan">    <arc:set attr="data.pallets">      [data.pallets]            <OrderStatusUpdate xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">        <EventTime>[data.EventTime]</EventTime>        <OrderNo>[data.OrderNo]</OrderNo>        <CustomerOrderReference>[data.CustomerOrderReference]</CustomerOrderReference>        <StatusCode>[data.StatusCode]</StatusCode>        <StatusName>[data.StatusName]</StatusName>        <WaybillNo>[data.WaybillNo]</WaybillNo>        <Notes>[data.Notes]</Notes>        <SignedBy>[data.SignedBy]</SignedBy>        <Signature>[data.Signature]</Signature>        <Latitude>[data.Latitude]</Latitude>        <Longitude>[data.Longitude]</Longitude>        <PalletID>[_value|add(1)]</PalletID>      </OrderStatusUpdate>'   </arc:set>  </arc:if></arc:enum><arc:set attr="output.data" value="<PalletsStatuses>[data.pallets]</PalletsStatuses>"/><arc:push item="output"/>

3

You should be able to evaluate an expression just about anywhere including the range in an enum - this works for me:

<arc:set attr="output.header:numberofpallets" value="10" /><arc:enum range="1..[output.header:numberofpallets]">  <arc:set attr="output.filename" value="[_value].txt" />  <arc:push item="output" /></arc:enum>

Are you sure that output.header:numberofpallets was set to an integer value earlier in the script?

4

Thanks James

numberofpallets was calculated using | add()  so I presume it is an integer

5

Hi Russell,

Would you be able to provide the whole code here? I could not see where the value was initialized. You can always use arc:throw as a makeshift mechanism for stepping through the script:

<arc:throw code="x" desc="NumberOfPallets is [output.header:numberofpallets | def('undefined')]" /><arc:set attr="data.pallets" value=""/><arc:enum range="0..99">  <arc:if attr="output.header:numberofpallets" value="[_value]" operator="greaterthan">

If you do this, you’ll see an exception with the value that output.header:numberofpallets currently has - is that an integer?