[jboss-jira] [JBoss JIRA] (DROOLS-5044) Allow to set default value for columns other than 'literal equals to ...'

[Werner Van Herrewegen (Jira)]

Werner Van Herrewegen created DROOLS-5044:
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             Summary: Allow to set default value for columns other than 'literal equals to ...'
                 Key: DROOLS-5044
                 URL: https://issues.redhat.com/browse/DROOLS-5044
             Project: Drools
          Issue Type: Feature Request
          Components: Guided Decision Table Editor
            Reporter: Werner Van Herrewegen
            Assignee: Michael Anstis
         Attachments: image-2020-02-11-14-10-05-686.png, image-2020-02-11-14-28-02-448.png

Hi,
Sometimes I need to be able to put a +default 'TRUE'+ value for conditional columns that don't make any sense to have a 'FALSE' value.

I give you the following case:

When I want to update a fact A in the action part based on the value of a fact B on the condition part, it obviously makes sense to have an additional condition that fact A exists.

But this results (as seen in the example screenshot below) in the option to flag the column that fact A exists TRUE/FALSE with a 'default' on FALSE.

When you leave it FALSE, you get a compile error because the resulting rule code excludes the line, when you flag it TRUE, the line is shown ok and you don't get any errors.
So the only real value that is possible is TRUE and it must be flagged TRUE for each row in the decision table.

It is really hard for me to explain this to business users, when I give them the option to uncheck the column.

Workaround/solution would be to allow a default value 'TRUE' and actually hide the column.
Because for the business person, he doesn't care. 
And the pity is that there actually is an option to add default values but only for literal equals...

More generally this is a need to add some rule text that is always in the generated resulting rule code in the LHS or RHS rule part for all rows in the decision table.

kr,
Werner




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