Re: Divide: invalid parent - Equal

From: Gili (cowwo..bs.darktech.org)
Date: Mon Sep 12 2005 - 16:33:09 EDT

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            Phew... I can't tell you how relieved I am :) I thought this was going
    to be hard to fix. Thanks a lot Andrus!

    Gili

    Andrus Adamchik wrote:
    > This is a stupid bug in ASTDivide. Just checked in the fix - good catch!
    >
    > Andrus
    >
    >
    > On Sep 12, 2005, at 12:08 PM, Gili wrote:
    >
    >> Hi,
    >>
    >> I've run this by Mike and neither of us understands why this
    >> doesn't work. Is there something non-obvious happening or is this a
    >> bug in the expression parser?
    >>
    >> I get this exception:
    >>
    >> org.objectstyle.cayenne.exp.ExpressionException: [v.1.2-dev September
    >> 9 2005] Divide: invalid parent - Equal
    >> at
    >> org.objectstyle.cayenne.exp.parser.ConditionNode.jjtSetParent
    >> (ConditionNode.java:24)
    >> at org.objectstyle.cayenne.exp.parser.SimpleNode.setOperand
    >> (SimpleNode.java:191)
    >> at org.objectstyle.cayenne.exp.Expression.transform
    >> (Expression.java:601)
    >> at org.objectstyle.cayenne.exp.Expression.transform
    >> (Expression.java:593)
    >> at
    >> org.objectstyle.cayenne.exp.parser.AggregateConditionNode.transform
    >> (AggregateConditionNode.java:80)
    >> at org.objectstyle.cayenne.exp.Expression.expWithParameters
    >> (Expression.java:381)
    >> at
    >> org.objectstyle.cayenne.query.SelectQuery.queryWithParameters
    >> (SelectQuery.java:397)
    >>
    >> when I try using the following expression as a query qualifier.
    >>
    >> 1) Build the expression manually...
    >>
    >> Expression a = Expression.fromString
    >> ("cachedImage.imageSpecification.width /
    >> cachedImage.imageSpecification.height");
    >> Expression b = Expression.fromString("$width / $height");
    >> Expression c = ExpressionFactory.binaryExp(Expression.EQUAL_TO,
    >> a, b);
    >>
    >> 2) Or, enter this qualifier in the modeler query creator...
    >>
    >> (cachedImage.imageSpecification.width /
    >> cachedImage.imageSpecification.height) = ($width / $height)
    >>
    >> in either case when you try using this expression in a query, the
    >> exception is thrown.
    >>
    >> This is also discussed here: http://www.desktopbeautifier.com/
    >> cayenne/posts/list/22.page
    >>
    >> Any ideas?
    >>
    >> Thanks,
    >> Gili
    >> --
    >> http://www.desktopbeautifier.com/
    >>
    >>
    >
    > 

    -- 
http://www.desktopbeautifier.com/

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