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From Matthias We├čendorf (JIRA) <>
Subject [jira] Commented: (TRINIDAD-1360) error in doubleconverter
Date Tue, 06 Jan 2009 13:54:44 GMT


Matthias We├čendorf commented on TRINIDAD-1360:

I think the same is true for FloatConverter as well

> error in doubleconverter
> ------------------------
>                 Key: TRINIDAD-1360
>                 URL:
>             Project: MyFaces Trinidad
>          Issue Type: Bug
>          Components: Components
>    Affects Versions: 1.2.10-core, 1.0.10-core
>            Reporter: Gabrielle Crawford
> Doubleconverter ignores locale, so it just does this on the server
> * getAsString() --> return Double.toString(((Number)value).doubleValue());
> * getAsObject() --> return Double.valueOf(stringValue);
> On the client it does something similar to the server for getAsString. 
> However on the client for getAsObject it's calling _decimalParse, which uses localeSymbols
to parse, which means it's using locale specific formatting on the client to interpret the
string to an object. The doubleconverter must be consistent, either it's using the locale
to parse/format to/from a string on both the server and client, or it's not, but the hybrid
approach it's using right now causes bugs.
> If I change my language to German [de] and run this
>      <af:inputText label="value"
>                value="#{demoInputNumberSlider.numberValue}"/>
> and then type in "4.5" and tab out, it's turning this into 45 in _decimalParse. 
> If I type in "4,5" it's interpreting this as 4.5 on the client and not showing an error.
However the string '4,5' will cause an error on the server, and should therefore cause an
error on the client.
> So, if I have this, and I enter 4.5 it tells me I have an error, because it thinks the
value is 45 and not 4.5!
>  <tr:inputText value="#{clientValidation.double}" label="double converter">
>                 <tr:validateDoubleRange maximum="10.5" minimum="1.5"/>
>               </tr:inputText>

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