ERDSmartRelationshipAssignment Class Reference

Inherits er::directtoweb::assignments::ERDAssignment.

Collaboration diagram for ERDSmartRelationshipAssignment:

[legend]

List of all members.

Public Member Functions
NSArray	dependentKeys (String keyPath)
	ERDSmartRelationshipAssignment (String key, Object value)
	ERDSmartRelationshipAssignment (EOKeyValueUnarchiver u)
Object	smartRelationship (D2WContext c)
Static Public Member Functions
static Object	decodeWithKeyValueUnarchiver (EOKeyValueUnarchiver eokeyvalueunarchiver)
Static Public Attributes
static final NSArray	_DEPENDENT_KEYS = new NSArray(new String[] { "object.entityName", "propertyKey" })

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Detailed Description

This class works around the following problem:
An entity A has a relationship b to an entity B, which has a subentity B1. B1 has a relationship k, which B does not have. If in an inspect page for entity A, you use b.k as a display key, then the D2W rules which are based on d2wContext.relationship will not fire properly. This is because relationship is null, instead of containing <EORelationship entity="B1" name="k">. The reason D2W does not find it is that it uses the Model to find out the EORelationship and starts from A. Following the relationship b, gives a B, and asking B for a relationship named k returns null and you lose.

Deprecated:

use ERDDefaultModelAssignment

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Constructor & Destructor Documentation

ERDSmartRelationshipAssignment

(

EOKeyValueUnarchiver

u

)

Public constructor

Parameters:

u

key-value unarchiver used when unarchiving from rule files.

ERDSmartRelationshipAssignment	(	String	key,
		Object	value
	)

Public constructor

Parameters:

	key	context key
	value	of the assignment

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Member Function Documentation

static Object decodeWithKeyValueUnarchiver

(

EOKeyValueUnarchiver

eokeyvalueunarchiver

)

[static]

Static constructor required by the EOKeyValueUnarchiver interface. If this isn't implemented then the default behavior is to construct the first super class that does implement this method. Very lame.

Parameters:

eokeyvalueunarchiver

to be unarchived

Returns:

decoded assignment of this class

NSArray dependentKeys

(

String

keyPath

)

Implementation of the ERDComputingAssignmentInterface. This assignment depends upon the context keys: "propertyKey" and "object.entityName". This array of keys is used when constructing the significant keys for the passed in keyPath.

Parameters:

keyPath

to compute significant keys for.

Returns:

array of context keys this assignment depends upon.

Implements ERDComputingAssignmentInterface.

Object smartRelationship

(

D2WContext

c

)

Resolves the EORelationship in a smarter manner using the current object from the context as well as the propertyKey to determine the current relationship. Works even with inheirtance.

Parameters:

c

current D2W context

Returns:

relationship for the current propertyKey object combination.

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Member Data Documentation

final NSArray _DEPENDENT_KEYS = new NSArray(new String[] { "object.entityName", "propertyKey" }) [static]

holds the array of dependent keys

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The documentation for this class was generated from the following file:

• /opt/source/Wonder/Frameworks/Core/ERDirectToWeb/Sources/er/directtoweb/assignments/ERDSmartRelationshipAssignment.java