[jboss-jira] [JBoss JIRA] Commented: (JBRULES-554) False "Duplicate declaration for variable" error when doing "Match( homeTeam == $team) || Match( awayTeam == $team)"

[John Cocktolstoy (JIRA)]

    [ http://jira.jboss.com/jira/browse/JBRULES-554?page=comments#action_12347662 ] 
            
John Cocktolstoy commented on JBRULES-554:
------------------------------------------

Hi,
I am writing application, where user in GUI creates rule that is later translated into Drools rules. I tould be very helpful to have this issue fixed. Also for the guys creating rules using DRL files I think using the same variable in two parts of 'or' statement would greatly simplify rules. Looking forward to have this issue fixed.

regards
John C.

> False "Duplicate declaration for variable" error when doing "Match( homeTeam == $team) || Match( awayTeam == $team)"
> --------------------------------------------------------------------------------------------------------------------
>
>                 Key: JBRULES-554
>                 URL: http://jira.jboss.com/jira/browse/JBRULES-554
>             Project: JBoss Rules
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: Drl Parser/Builder
>    Affects Versions: 3.0.4
>            Reporter: Geoffrey De Smet
>         Assigned To: Mark Proctor
>            Priority: Minor
>         Attachments: JBRULES-554-testcase-branch-3.0.x.patch
>
>
> [Maybe assign to Edson, he asked me to open in mailing list thread "Yet another or question"]
> On the 3.0.x branch (update from this time) when declaring this rule:
> query "multipleMatchesPerTeamPerDay"
>     $team : Team();
>     Match( $id : id, homeTeam == $team, $day : day )
>         || Match( $id : id, awayTeam == $team, $day : day );
>     exists Match( id > $id, homeTeam == $team, day == $day )
>         || exists Match(id > $id, awayTeam == $team, day == $day );
> end
> It reports an error:
>   org.drools.rule.InvalidRulePackage: Duplicate declaration for variable '$day' in the rule 'multipleMatchesPerTeamPerDay'
> Testcase patch coming up.

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