[Wonder-disc] D2W rule system + userPreferences

[Ramsey L. G. <rg...@ma...>]

Hi all,

I'm trying to build rules based on current userPreferences but so far  
nothing works.  It seems no matter what I do, my preference gets  
cached and the rules always evaluate the same way once the preference  
is in the rule system.  So far, I have the following in an  
ERDDelayedAssignment subclass

	/**
	 * The rhsKey is the preference key. Default values are defined using a
	 * similarly named default key in the D2WContext. The preference key
	 * and the default key should be named using a xxx, defaultXxx naming
	 * convention. Examples are batchSize, defaultBatchSize and  
sortOrdering,
	 * defaultSortOrdering.
	 * @return the user preference value for the preference key or the  
default
	 * value if no user preference value is found.
	 */
	@Override
	public Object fireNow(D2WContext c) {
		String rhsKey = keyPath();
		
		// Get the default value
		StringBuffer sb = new StringBuffer(rhsKey);
		sb.setCharAt(0, Character.toUpperCase(sb.charAt(0)));
		sb.insert(0, default_key);
		Object result = c.valueForKey(sb.toString());

		// Get the preference for the RHS key
		String prefKey = ERXExtensions.userPreferencesKeyFromContext(rhsKey,  
c);
		NSKeyValueCoding userPreferences = (NSKeyValueCoding)  
c.valueForKey(UserPreferencesKey);
		if (userPreferences != null) {
			Object pref = userPreferences.valueForKey(prefKey);
			if(pref != null) { result = pref; }
		}

		// Return the preference
		return result;
	}

This works, but it seems the lhs side of the rule is being cached.  I  
have four rules defined to give me a componentName based on the  
preference value that look something like:

pageView = 'VIEW1' => viewComponentName = "view1ComponentName"  
ERDDelayedKeyValueAssignment

pageView comes out of the above assignment method.  When I set a  
breakpoint in fireNow, it gets called four times initially and then it  
is never called again no matter how many times I change the pageView.   
I've tried making this assignment an ERDAssignment with dependentKeys  
of ("userPrefenences") but that didn't work.  In desperation, I also  
tried creating an ERDAssignment to use in place of  
ERDDelayedKeyValueAssignment with a dependentKeys of ("pageView").   
Still no luck.  It seems no matter what I try, the rule's lhs value  
has been cached and I cannot get the rule system to re-evaluate it.

Any insight/advice would be appreciated...

Thanks everyone,

Ramsey