Skip to main content
Solved

arc:enum Can it take a dynamic range?

  • July 3, 2024
  • 4 replies
  • 82 views
R
Forum|alt.badge.img+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 :”

Best answer by James B

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? 

    This topic has been closed for replies.

    4 replies

    R
    Forum|alt.badge.img+1

    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"/>

     

      James B
      Forum|alt.badge.img
      • James B
      • Employee
      • Answer
      • July 3, 2024

      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? 

        R
        Forum|alt.badge.img+1

        Thanks James

         

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

          James B
          Forum|alt.badge.img
          • James B
          • Employee
          • July 5, 2024

          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?

            State of AI Data Connectivity Report: 2026 Outlook
            Terms and ConditionsCookie settingsAccessibility statement