How to do IF THEN ELSE logic in Workflow?

Question

I need to do "if then else" logic in Workflow. The key part of the probem is that there are several "else" (elsif) possibilities, so I can't use a Boolean or Yes/No as a return result code. When I use a function, I can't see a way to "check" the value before it passes to a next process. HELP!

Answer 1

Whether you are using a function as your comparator or the Standard WF Compare Operators, this can be done. I will explain two scenarios, one with your own written functions as the comparator and the other using the standard Compare Text function.
Create a PL/SQL procedure that returns a boolean. In this procedure you would pull two attributes from the workflow, the test case and the value you want to compare to. You would check to see if they are equal and return true, otherwise false. I do not know what you are trying to compare in your if statement, but whatever it is, if its true, return true, otherwise false.
Now in the workflow, you would put a couple of these in your process diagram representing each if statement. Set the two (or more) attributes in the Node Attributes tab of each function node to the values you want to compare. For the first node, have the <true> transition go to whatever you want done and then to an END node. Have the <default> or <false> transition point to the next function node you have. Do the same for each one except at the last one, its only transition would be <default> and that would go to END. This way if the first function resolves true, it will do whatever should be done and then skip the rest of the conditions. If its false, it will go to the next conditional. The last one will be gotten to only if every other conditional was false that would be your final else statement.
To do this with the Compare Text option, have the same set up in your workflow diagram exception have the <EQUALS> be your true path and the <DEFAULT> transition go to the next compare text node.
-->O-{default}->O-{default}->O->default
     |                 |                 |             |
    true           true            true           |
     |                 |                 |             |
  doWork     doWork     doWork      else
     |                 |                 |             |
      ---------------->---------------->------------|
                                                      |
                                                  end