Value From Item Attribute node

Read an attribute value from other items

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. It represents an actual value, not a reference - it stays fixed to whichever item(s) you choose, regardless of which item is being evaluated.

See comparison

	Attribute Node	Value From Item Attribute Node
What items can be accessed?	Each item fetched by the query	Any items from a specific design/interface
Can you access specific items?	No	Yes
Can you access items outside the query's results?	No	Yes
Does the value change per queried item?	Yes - it's a live reference	No - it's a fixed value

Usage

This node is an input, so you can add it to the segments of:

• these comparison nodes:

  • Equals / Not equals

  • Greater than / Less than

  • Starts with / Contains word

  • Within / Intersects / Disjoint

• Length

• all Arithmetic nodes

Compatibility

This node fills one segment. The other must produce a matching value from the queried items.

Node	Accepted Value Type	Notes
Attribute	Any except Geometry	Use the Pathfinder to choose an attribute, on the queried item or a linked item
Attribute (Geometry)	Geometry	Only compatible with Within / Intersects / Disjoint
Property (Item Id)	Item Id	Only compatible with Equals / Not equals. Use the Pathfinder to choose the property, on the queried item or a linked item
Property (Last edit date)	Date Time	Only compatible with Less than / Greater than
Count	Number
Length	Number
Arithmetic nodes	Number

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. The value is provided when the query runs.

Alternatively, set the value directly:

• Design or interface - target items of a design, or items of designs implementing an interface. Defaults to the one being queried.

• Items - select one or more items of the chosen design/interface. Multiple values only apply to Equals / Not equals.

• Attribute - choose the attribute you want to read on each selected item. Defaults to the first.

Example

Fetch all assets within a particular depot's grounds.

In AQS terms:

Fetch items of the Assets interface where their Geometry attribute intersects with the Geometry attribute of a specific Locations of Interest item.

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_locationsOfInterest",
            "value": ["62444aed8b3eaf015886b3ca"]
          }
        }
      ]
    }
  ]
}