I'm trying to get a CustomActionPlugin run every time something is updated in the product selector. I've set the condtions to be that a calculated value of 1 is equal to 1 .
The action is then my custom action. It doesn't get called 
(nothing in the debug logs or rule logs)
BUT - if i also add a 2nd action to put up a validation method then it does work - i.e. both the message is displayed AND my plugin is called and can take actions. This feels like a bug?
Sorry - I got utterly confused with my plugins here! I was intitially talking about a plugin for a Rule in the rules engine and not the Javascript. We're still having the same issue with the CustomActionPlugin. The code for that was as below:
global with sharing class NigelCustomActionPlugin implements zqu.CustomActionPlugin {
global void perform(zqu.DataObject masterObject,
Map<String, Object> attributes, String[] logs) {
// Read values from child objects.
List<zqu.DataObject> plans = masterObject.getChildren('zqu__QuoteRatePlan__c');
//Validate quantities match for same UOM on each Rate Plan
logs.add('Hello');
for (zqu.DataObject plan : plans) {
List<zqu.DataObject> charges = plan.getChildren('zqu__QuoteRatePlanCharge__c');
Decimal quantity = null;
for (zqu.DataObject charge : charges) {
Decimal chargeQuantity = (Decimal) charge.get('zqu__Quantity__c');
if( quantity == null ) {
quantity = chargeQuantity;
} else if( chargeQuantity != quantity ) {
throw new zqu.CustomValidationException('All charges must have the same quantity');
}
}
}
}
global Boolean isUpdateAction() { return true; }
global Boolean isAddRemoveAction() { return false; }
global Boolean isValidateAction() { return true; }
}With the rule set to always run if the username contains Nigel (i.e. when I run it) with just the above action then it doesn't. If I add an additional action of an Info message then it DOES run.
The rule is:
Condition Json
{"criteriaType":"CONJUNCTION_CRITERIA","operationType":"OR_TYPE","parameters":[{"operationType":"CONTAINS","dataType":"STRING_TYPE","criteriaType":"COMPARISON_CRITERIA","leftTerm":{"valueType":"GLOBALVAR_VAL","dataType":"STRING_TYPE","globalVar":"USER_GVAR","fieldName":"Username"},"rightTerm":{"valueType":"CONSTANT_VAL","dataType":"STRING_TYPE","value":"nigel"}}]}
Action Json
[{"actionType":"CUSTOM_ACTION","className":"NigelCustomActionPlugin","attributes":{"fff":"bbb"}}]However, I've now found that if I change
global Boolean isAddRemoveAction() { return false; }into
global Boolean isAddRemoveAction() { return true; }Then it does run again - so maybe I have a workaround 
