Summary
The Describe function returns the following properties for relationship classes. The Geodatabase Table, Table, and Dataset property groups are also supported.
For a relationship class, the Describe dataType property returns a value of "RelationshipClass".
Properties
Property | Explanation | Data Type |
backwardPathLabel (Read Only) | The backward path label for the relationship class. | String |
cardinality (Read Only) | The cardinality for the relationship class.
| String |
classKey (Read Only) | Class key used for the relationship class.
| String |
destinationClassKeys (Read Only) | A list of tuples, with the object key name, and key role (DestinationPrimary, DestinationForeign). | tuple |
destinationClassNames (Read Only) | A list containing the names of the destination classes. | String |
forwardPathLabel (Read Only) | The forward path label for the relationship class. | String |
isAttachmentRelationship (Read Only) | Indicates whether the relationship class represents a table attachment. | Boolean |
isAttributed (Read Only) | Indicates whether the relationships in this relationship class have attributes. | Boolean |
isComposite (Read Only) | Indicates whether the relationship class represents a composite relationship in which the origin object class represents the composite object. | Boolean |
isReflexive (Read Only) | Indicates whether the origin and destination sets intersect. | Boolean |
keyType (Read Only) | Key type for the relationship class.
| String |
notification (Read Only) | The notification direction for the relationship class.
| String |
originClassNames (Read Only) | A list containing the names of the origin classes. | String |
originClassKeys (Read Only) | A list of tuples, with the object key name, and key role (OriginPrimary, OriginForeign). | tuple |
relationshipRules (Read Only) | A list of relationship rule objects that list the properties of the relationship rules that apply to this relationship class. | Object |
splitPolicy (Read Only) | The split policy that is set for the relationship class.
| String |
Code sample
The following stand-alone script displays properties for a relationship class:
import arcpy
# Create a Describe object
#
desc = arcpy.Describe("C:/data/moad.gdb/West/bapCompAttRel")
# Print relationship class properties
#
print ("Backward Path Label: {}".format(desc.backwardPathLabel))
print ("Cardinality: {}".format(desc.cardinality))
print ("Class key: {}".format(desc.classKey))
print ("Destination Class Names: {}".format(desc.destinationClassNames))
print ("Forward Path Label: {}".format(desc.forwardPathLabel))
print ("Is Attributed: {}".format(desc.isAttributed))
print ("Is Composite: {}".format(desc.isComposite))
print ("Is Reflexive: {}".format(desc.isReflexive))
print ("Key Type: {}".format(desc.keyType))
print ("Notification Direction: {}".format(desc.notification))
print ("Origin Class Names: {}".format(desc.originClassNames))