Since version: 1.6
With the Form Constraint profile, expressions can be written to evaluate whether or not a feature meets the criteria defined in the expression. This profile is used for advanced attribute editing in Forms. The script should return a Boolean with true indicating the feature meets the constraint criteria or false indicating it does not meet the criteria.
Context
The following products implement this profile:
- ArcGIS Maps SDK for JavaScript
- ArcGIS Online
- ArcGIS Enterprise
- ArcGIS Field Maps
Spatial reference
The spatial reference of the map in which $feature is rendered determines the spatial reference of the expression's execution context.
Profile variables
| Variable Name | Type | Description | Since version |
|---|---|---|---|
| $feature | Feature | The feature being evaluated for the constraint. | 1.6 |
| $originalFeature | Feature | The previous state of the feature. | 1.22 |
| $editcontext.editType | Text | Indicates whether the edit event is INSERT, UPDATE, DELETE, or NA (not applicable). | 1.22 |
| $layer | FeatureSet | A collection of features in the same layer as $feature. | 1.22 |
| $datastore | FeatureSetCollection | A collection of layers in the same feature service or database as $feature. | 1.22 |
| $featureSet | FeatureSet | A collection of features in the same table as $feature. | 1.22 |
| $map | FeatureSetCollection | A collection of feature service layers in the same map as $feature. | 1.22 |
Function bundles
Core | Geometry | Data Access | Portal Access
Return types
Example
Returns a Boolean value indicating if the feature has a "Completed" status and if the value of resolution is not null.
$feature.status == 'Completed' && !IsEmpty($feature.resolution)