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Birt Exception in Computed Column [message #259274]

Wed, 24 October 2007 08:42

Eclipse User

Hi,

I'm trying to create a Computed Column to show a formula depending on it's
tipe:

if( row["TIPO_REGRESION"] == "POL" ) {
row["A"] + " + " row["B"] + "x" + " + " row["C"] + "x^2"
} else if( row["TIPO_REGRESION"] == "LIN" ) {
row["A"] + " + " row["B"] + "x"
} else if( row["TIPO_REGRESION"] == "EXP" ) {
row["A"] + " + " row["C"] + "x^2"
} else if( row["TIPO_REGRESION"] == "POT" ) {
row["M"] + "x^" + row["N"]
}

but get an exception making a preview:

A BIRT exception occurred.
Plug-in Provider:Eclipse.org
Plug-in Name:BIRT Data Engine
Plug-in ID:org.eclipse.birt.data
Version:2.2.0.v200706221
Error Code:data.engine.BirtException
Error Message:A BIRT exception occurred: org.eclipse.birt.core. See next
exception for more information.
org.eclipse.birt.core

Is there anything wrong with the JS code?

Regads,
Eduardo.

Re: Birt Exception in Computed Column [message #259308 is a reply to message #259274]

Wed, 24 October 2007 11:39

Eclipse User

Eduardo,

I don't really know what you want your expression to look like, but it appears
you are missing an addition sign (+) between your literal " + " value in
the string.

You don't need to create the variable, but it removes a bunch of double quotes
and makes it a bit easier to read:

var add = " + ";

if( row["TIPO_REGRESION"] == "POL" ) {
row["A"] + add + row["B"] + "x" + add + row["C"] + "x^2"
} else if( row["TIPO_REGRESION"] == "LIN" ) {
row["A"] + add + row["B"] + "x"
} else if( row["TIPO_REGRESION"] == "EXP" ) {
row["A"] + add + row["C"] + "x^2"
} else if( row["TIPO_REGRESION"] == "POT" ) {
row["M"] + "x^" + row["N"]
}

Scott Rosenbaum

> Hi,
>
> I'm trying to create a Computed Column to show a formula depending on
> it's tipe:
>
> if( row["TIPO_REGRESION"] == "POL" ) {
> row["A"] + " + " row["B"] + "x" + " + " row["C"] + "x^2"
> } else if( row["TIPO_REGRESION"] == "LIN" ) {
> row["A"] + " + " row["B"] + "x"
> } else if( row["TIPO_REGRESION"] == "EXP" ) {
> row["A"] + " + " row["C"] + "x^2"
> } else if( row["TIPO_REGRESION"] == "POT" ) {
> row["M"] + "x^" + row["N"]
> }
> but get an exception making a preview:
>
> A BIRT exception occurred.
> Plug-in Provider:Eclipse.org
> Plug-in Name:BIRT Data Engine
> Plug-in ID:org.eclipse.birt.data
> Version:2.2.0.v200706221
> Error Code:data.engine.BirtException
> Error Message:A BIRT exception occurred: org.eclipse.birt.core. See
> next
> exception for more information.
> org.eclipse.birt.core
> Is there anything wrong with the JS code?
>
> Regads,
> Eduardo.

Re: Birt Exception in Computed Column [message #259339 is a reply to message #259308]

Wed, 24 October 2007 13:56

Eclipse User

Scott,

You're totally right, it worked like a charm.

Lots of thanks.

"Scott Rosenbaum" <scottr@innoventsolutions.com> escribi

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