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Value From Item Attribute node

Description​

The Value from item attribute node represents the value of a specific attribute on one or more items from any design/interface you choose.

It's similar to an Attribute node but has a wider scope.

See comparison
Attribute NodeValue From Item Attribute Node
What items can be referenced?All qualifying items fetched by the queryAny items from a specific design/interface
Can you reference specific items?NoYes
Can you reference non-qualifying items?NoYes

Usage​

This node is an input. It can be added to the segments of comparison nodes and functions.

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It can be added to these comparison nodes:

Options​

Select the node to access its options:

  • Delete - remove the node from the segment.
  • Parameter - select a compatible parameter to use as a placeholder value (if any have been defined in the query).

  • Design or interface - this defaults to the design/interface being queried. To change it, select it, and then choose one from the list.

  • Items - select this to show items from the design/interface chosen above. Select the items you wish to reference.

  • Attribute - this defaults to the first attribute on the design/interface being queried. Select this to show attributes from the design/interface chosen above. Select the attribute you wish to reference (on the items selected above).

Example​

Fetch all assets within a town's boundary

In full detail:

Fetch items of the Assets interface where their Geometry attribute intersects with the Geometry attribute of a specific item from the Town boundaries design

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See JSON code

This code may reference designs, interfaces, attributes or items that don't exist in your company project.

{
  "type": "Query",
  "properties": {
    "collectionCode": "Live",
    "dodiCode": "designInterfaces_assets"
  },
  "children": [
    {
      "type": "GeomIntersects",
      "children": [
        {
          "type": "Attribute",
          "properties": {
            "attributeCode": "attributes_itemsGeometry"
          }
        },
        {
          "type": "ValueFromItemAttribute",
          "properties": {
            "attributeCode": "attributes_itemsGeometry",
            "dodiCode": "designs_townBoundaries_624449418b3eaf015886aeea",
            "value": ["62444aed8b3eaf015886b3ca"]
          }
        }
      ]
    }
  ]
}