Summary
The Describe function returns the following properties for datasets that have attribute rules added to them.
Attribute rules can be added to a geodatabase feature class or table. The dataType returned is the dataType of the feature class or table.
Properties
| Property | Explanation | Data Type |
| batch (Read Only) | Indicates whether the rule is executed in batch mode.
Calculation rules may return either true or false, but constraint rules will always return false, and validation rules will always be true. | Boolean |
| checkParameters (Read Only) | A key-value pair of check parameters applicable only to Reviewer rules to store parameters. This is set by Data Reviewer when creating a new rule. | Integer |
| creationTime (Read Only) | The date and time the attribute rule was created. | DateTime |
| description (Read Only) | The description of the attribute rule. | String |
| errorMessage (Read Only) | If the attribute rule has a custom error message (that is, constraint rules), this property will return the error message that was assigned for this rule. | String |
| errorNumber (Read Only) | If the attribute rule has a custom error number (that is, constraint rules), this property will return the error number that was assigned for this rule. | Long |
| evaluationOrder (Read Only) | If the rule type is calculation, this value gives the order that the rule is executed. The evaluation order is based on the order that the rule was added to the dataset. For example, if Rule A is added before Rule B, the evaluation number will be lower for Rule A. | Long |
| excludeFromClientEvaluation (Read Only) | Returns a Boolean describing whether the rule is excluded from client evaluation.
| Boolean |
| fieldName (Read Only) | If the attribute rule is assigned to a field (ie. a calculation rule type), this property returns the field name. | String |
| id (Read Only) | Returns the rule ID as an integer value. | Integer |
| isEnabled (Read Only) | Returns a Boolean describing whether the rule is enabled or not.
| Boolean |
| name (Read Only) | The name of the attribute rule. | String |
| referencesExternalService (Read Only) | Indicates whether the rule references any external service. | Boolean |
| requiredGeodatabaseClientVersion (Read Only) | The required geodatabase client version is set per rule, depending on what Arcade functions are used in the script expression. For example, if the script includes the Sequence operation, a 10.6.1 geodatabase is required. | String |
| scriptExpression (Read Only) | The Arcade expression that defines the rule. | String |
| severity (Read Only) | Defines the severity of the error. This property is applicable to validation rule types. | Integer |
| subtypeCode (Read Only) | If the attribute rule is assigned to a subtype, this property returns the subtype code for which it is assigned. | Long |
| tags (Read Only) | A set of tags that are used to identify the rule. | String |
| triggeringEvents (Read Only) | The triggering events defined in the attribute rule. For example, the rule may be triggered by Insert, Update, or Delete events during editing. | String |
| type (Read Only) | The type of the attribute rule. For example, a rule may be a calculation or constraint rule type. | String |
| userEditable (Read Only) | Returns a Boolean describing whether the rule allows editing of the attribute field that is being modified by the rule.
| Boolean |
Code sample
The following stand-alone Python script prints a report of the attribute rule properties for a feature class.
# Import the required modules
import arcpy
# Path to the input feature class or table
fc = "C:\\MyProject\\MyDatabase.sde\\myGDB.USER1.Building"
# Print a report of the attribute rule properties
attRules = arcpy.Describe(fc).attributeRules
print("- Attribute Rule Properties -")
for ar in attRules:
if "Calculation" in ar.type:
print("- Calculation Rule:")
print(" Name: {0}".format(ar.name))
print(" Creation time: {0}".format(ar.creationTime))
print(" Field: {0}".format(ar.fieldName))
print(" Subtype code: {0}".format(ar.subtypeCode))
print(" Description: {0}".format(ar.description))
print(" Is editable: {0}".format(ar.userEditable))
print(" Is enabled: {0}".format(ar.isEnabled))
print(" Evaluation order: {0}".format(ar.evaluationOrder))
print(" Exclude from client evaluation: {0}".format(ar.excludeFromClientEvaluation))
print(" Triggering events: {0}".format(ar.triggeringEvents))
print(" Script expression: {0} \n".format(ar.scriptExpression))
print(" Is flagged as a batch rule: {0} \n".format(ar.batch))
print(" Severity: {0} \n".format(ar.severity))
print(" Tags: {0} \n".format(ar.tags))
elif "Constraint" in ar.type:
print("- Constraint Rule:")
print(" Name: {0}".format(ar.name))
print(" Creation time: {0}".format(ar.creationTime))
print(" Subtype code: {0}".format(ar.subtypeCode))
print(" Description: {0}".format(ar.description))
print(" Is editable: {0}".format(ar.userEditable))
print(" Is enabled: {0}".format(ar.isEnabled))
print(" Error number: {0}".format(ar.errorNumber))
print(" Error message: {0}".format(ar.errorMessage))
print(" Exclude from client evaluation: {0}".format(ar.excludeFromClientEvaluation))
print(" Triggering events: {0}".format(ar.triggeringEvents))
print(" Script expression: {0} \n".format(ar.scriptExpression))
print(" Tags: {0} \n".format(ar.tags))
elif "Validation" in ar.type:
print("- Validation Rule:")
print(" Name: {0}".format(ar.name))
print(" Creation time: {0}".format(ar.creationTime))
print(" Subtype code: {0}".format(ar.subtypeCode))
print(" Description: {0}".format(ar.description))
print(" Is enabled: {0}".format(ar.isEnabled))
print(" Error number: {0}".format(ar.errorNumber))
print(" Error message: {0}".format(ar.errorMessage))
print(" Script expression: {0} \n".format(ar.scriptExpression))
print(" Is flagged as a batch rule: {0} \n".format(ar.batch))
print(" Severity: {0} \n".format(ar.severity))
print(" Tags: {0} \n".format(ar.tags))