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Relationship Class properties

Resumen

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".

Propiedades

Propiedad Explicación Tipo de datos

backwardPathLabel

(Solo lectura)

The backward path label for the relationship class.

String

cardinality

(Solo lectura)

The cardinality for the relationship class.

  • OneToOne

  • OneToMany

  • ManyToMany

String

classKey

(Solo lectura)

Class key used for the relationship class.

  • Undefined

  • ClassID

  • ClassCode

String

destinationClassKeys

(Solo lectura)

A list of tuples, with the object key name, and key role (DestinationPrimary, DestinationForeign).

tuple

destinationClassNames

(Solo lectura)

A list containing the names of the destination classes.

String

forwardPathLabel

(Solo lectura)

The forward path label for the relationship class.

String

isAttachmentRelationship

(Solo lectura)

Indicates whether the relationship class represents a table attachment.

Boolean

isAttributed

(Solo lectura)

Indicates whether the relationships in this relationship class have attributes.

Boolean

isComposite

(Solo lectura)

Indicates whether the relationship class represents a composite relationship in which the origin object class represents the composite object.

Boolean

isReflexive

(Solo lectura)

Indicates whether the origin and destination sets intersect.

Boolean

keyType

(Solo lectura)

Key type for the relationship class.

  • Single

  • Dual

String

notification

(Solo lectura)

The notification direction for the relationship class.

  • None

  • Forward

  • Backward

  • Both

String

originClassNames

(Solo lectura)

A list containing the names of the origin classes.

String

originClassKeys

(Solo lectura)

A list of tuples, with the object key name, and key role (OriginPrimary, OriginForeign).

tuple

relationshipRules

(Solo lectura)

A list of relationship rule objects that list the properties of the relationship rules that apply to this relationship class.

Object

splitPolicy

(Solo lectura)

The split policy that is set for the relationship class.

  • DuplicateRelatedObjects

  • UseDefault

String

Muestra de código

Relationship class properties example

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))