Calling a Rule from Workflow

Question

How can I call / invoke a Rule from a workflow?
I am trying to Configure a Deferred Task.
The *"Date"* Argument in this Task is actually a "Parsed Date", which needs to be derived from the date which I input into my User Form.
The problem is : when I do the actual Parsing in the User Form, it causes problems for me. That is why I decided to create a Rule, which will calculate/parse the date. And then, I will call/reference this Rule in the Update-User Workflow.
Here is the Rule which I created for Parsing the Date :
*<Rule name='Parsed Date Rule'*
*<invoke name='dateToString' class='com.waveset.util.Util'>*
*<invoke name='stringToDate' class='com.waveset.util.Util'>*
*<concat>*
*<ref>global.day</ref>*
*<s>/</s>*
*<ref>global.month</ref>*
*<s>/</s>*
*<ref>global.year</ref>*
*</concat>*
*<s>dd/mm/yyyy</s>*
*</invoke>*
*<s>mm/dd/yyyy</s>*
*</invoke>*
*<MemberObjectGroups>*
*<ObjectRef type='ObjectGroup' id='#ID#Top' name='Top'/>*
*</MemberObjectGroups>*
*</Rule>*
And here is Here is my Deferred Task code :
*<Action>*
*<Argument name='op' value='addDeferredTask'/>*
*<Argument name='type' value='User'/>*
*<Argument name='name' value='$(accountId)'/>*
*<Argument name='task' value='My Task'/>*
*<Argument name='date'/>*
*<Argument name='accountId' value='$(accountId)'/>*
*<Argument name='executeOnce' value='true'/>*
*</Action>*
How can I reference/call/invoke that Rule in my Deferred Task??
I tried to do the following, but it did not work :
*<Argument name='date'>*
*<rule name='Parsed Date Rule'/>*
*</Argument>*
Any tips, please?
Thanks

Answer 1

My code is still give me an error : "Unparseable Date"
The values are being entered, except for the MONTH VALUE.
In my User Form, I am using drop-down menus to select the values for DAY, MONTH, YEAR.
The value for MONTH is string : JAN, FEB, MAR.
I created a separate Rule, for converting this String value into a Numerical Value (for example : JAN = O1, FEB = 02)
Here is the Rule I use to do the conversion :
<Rule name='Convert Month Rule'>
*<switch>*
*<ref>global.month</ref>*
*<case>*
*<s>Jan</s>*
*<setvar name='global.monthtwo'>*
*<s>01</s>*
*</setvar>*
*</case>*
*<case>*
*<s>Feb</s>*
*<setvar name='global.monthtwo'>*
*<s>02</s>*
*</setvar>*
*</case>*
*<case>*
*<s>Mar</s>*
*<setvar name='global.monthtwo'>*
*<s>03</s>*
*</setvar>*
*</case>*
*<case>*
*<s>Apr</s>*
*<setvar name='global.monthtwo'>*
*<s>04</s>*
*</setvar>*
*</case>*
*<case>*
*<s>May</s>*
*<setvar name='global.monthtwo'>*
*<s>05</s>*
*</setvar>*
*</case>*
*<case>*
*<s>Jun</s>*
*<setvar name='global.monthtwo'>*
*<s>06</s>*
*</setvar>*
*</case>*
*<case>*
*<s>Jul</s>*
*<setvar name='global.monthtwo'>*
*<s>07</s>*
*</setvar>*
*</case>*
*<case>*
*<s>Aug</s>*
*<setvar name='global.monthtwo'>*
*<s>08</s>*
*</setvar>*
*</case>*
*<case>*
*<s>Sep</s>*
*<setvar name='global.monthtwo'>*
*<s>09</s>*
*</setvar>*
*</case>*
*<case>*
*<s>Oct</s>*
*<setvar name='global.monthtwo'>*
*<s>10</s>*
*</setvar>*
*</case>*
*<case>*
*<s>Nov</s>*
*<setvar name='global.monthtwo'>*
*<s>11</s>*
*</setvar>*
*</case>*
*<case>*
*<s>Dec</s>*
*<setvar name='global.monthtwo'>*
*<s>12</s>*
*</setvar>*
*</case>*
*</switch>*
Somewhere in this Rule there is an error, because it is not converting the MONTH.
(The funny thing is : when I do the conversion directly from my User Form, it works perfectly! But, when I try to call that Rule in my Update Workflow, it gives the error)