er.directtoweb
Class ERDDelayedExtraQualifierAssignment

java.lang.Object
  com.webobjects.directtoweb.Assignment
      er.directtoweb.ERDDelayedAssignment
          er.directtoweb.ERDDelayedExtraQualifierAssignment

All Implemented Interfaces:

EOKeyValueArchiving, Serializable

public class ERDDelayedExtraQualifierAssignment

extends ERDDelayedAssignment

Very useful when you want to restrict the things a user can see during searches or in list pages.
set it up via a rule like: entity.name = "Movie" and session.user.role <> "admin" => extraRestrictingQualifier = { "studio" = "session.user.studios"; } [er.directtoweb.ERDDelayedExtraQualifierAssignment] then in your query page use sth like: public EODataSource queryDataSource() { EODataSource ds = super.queryDataSource(); if (ds != null && (ds instanceof EODatabaseDataSource)) { EOFetchSpecification fs = ((EODatabaseDataSource)ds).fetchSpecification(); EOQualifier q = fs.qualifier(); EOQualifier extraQualifier = (EOQualifier)d2wContext().valueForKey("extraRestrictingQualifier"); if(q != null && extraQualifier != null) { q = new EOAndQualifier(new NSArray(new Object[] {q, extraQualifier})); } else if(extraQualifier != null) { q = extraQualifier; } fs.setQualifier(q); } return ds; } This should guarantee that the user can only see the Movies that are made by studios contained in his studio relationship.

See Also:

Serialized Form

Nested Class Summary

Nested classes inherited from class com.webobjects.eocontrol.EOKeyValueArchiving

EOKeyValueArchiving._NullValueSupport, EOKeyValueArchiving._NumberSupport, EOKeyValueArchiving._TimestampSupport, EOKeyValueArchiving.Awaking, EOKeyValueArchiving.FinishInitialization, EOKeyValueArchiving.Support

Field Summary

static ERXLogger

log logging support

Fields inherited from class com.webobjects.directtoweb.Assignment

KeyPathKey, ValueKey

Fields inherited from interface com.webobjects.eocontrol.EOKeyValueArchiving

_CLASS

Constructor Summary

ERDDelayedExtraQualifierAssignment(EOKeyValueUnarchiver u)
Public constructor

ERDDelayedExtraQualifierAssignment(String key, Object value)
Public constructor

Method Summary

static Object	decodeWithKeyValueUnarchiver(EOKeyValueUnarchiver eokeyvalueunarchiver) Static constructor required by the EOKeyValueUnarchiver interface.
protected EOQualifier	extraQualifier(D2WContext c, NSDictionary dict)
Object	fireNow(D2WContext c) Implemented by subclasses.
protected EOQualifier	qualifierForArray(String key, NSArray objects)
protected EOQualifier	qualifierForObject(String key, Object object)

Methods inherited from class er.directtoweb.ERDDelayedAssignment

fire

Methods inherited from class com.webobjects.directtoweb.Assignment

encodeWithKeyValueArchiver, keyPath, toString, value, value

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

log

public static final ERXLogger log

logging support

Constructor Detail

ERDDelayedExtraQualifierAssignment

public ERDDelayedExtraQualifierAssignment(EOKeyValueUnarchiver u)

Public constructor

Parameters:

u - key-value unarchiver used when unarchiving from rule files.

ERDDelayedExtraQualifierAssignment

public ERDDelayedExtraQualifierAssignment(String key,
                                          Object value)

Public constructor

Parameters:

key - context key

value - of the assignment

Method Detail

decodeWithKeyValueUnarchiver

public static Object decodeWithKeyValueUnarchiver(EOKeyValueUnarchiver eokeyvalueunarchiver)

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

qualifierForArray

protected EOQualifier qualifierForArray(String key,
                                        NSArray objects)

qualifierForObject

protected EOQualifier qualifierForObject(String key,
                                         Object object)

extraQualifier

protected EOQualifier extraQualifier(D2WContext c,
                                     NSDictionary dict)

fireNow

public Object fireNow(D2WContext c)

Description copied from class: ERDDelayedAssignment

Implemented by subclasses.

Specified by:

fireNow in class ERDDelayedAssignment