#2269: Unicode error when a TextField with UnicodeString validator gets a non-
ascii value
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Reporter: chrisz | Owner:
Type: defect | Status: closed
Priority: high | Milestone: 2.0rc1
Component: TurboGears | Version: 2.0b7
Severity: major | Resolution: fixed
Keywords: tw.forms formencode UnicodeDecodeError |
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Changes (by chrisz):
* status: new => closed
* resolution: => fixed
Comment:
When I brought this up on the [http://groups.google.com/group
/toscawidgets-discuss/browse_thread/thread/117ef0b3e8b8283d TW mailing
list], it turned out that it is a known problem - you cannot use
`formencode.validators.UnicodeString` with `tw.forms`, but you have to use
`tw.forms.validators.UnicodeString` instead, which is a slightly modified
version of the same validator that avoids this error.
Unfortunately, this important detail was nowhere mentioned in our TG2
documentation; but I have added this now in r6499.
For the curious: The issue with the `UnicodeString` validator is that it
assumes the "outside world" to use UTF-8 encoding, while the templating
engines used by `tw.forms` expect unencoded Unicode objects. That's why
`tw.forms` provides a modified `UnicodeString` validator that you must use
to avoid this error.
Btw, I have also improved the `UnicodeString` validator of !FormEncode so
that it interprets an `outputEncoding` of None as "do not encode." So
`tw.forms.UnicodeString()` is now actually the same as
`formencode.validators.UnicodeString(outputEncoding=None)`. (This feature
will be available in !FormeEcode > 1.2.2.)
--
Ticket URL: <http://trac.turbogears.org/ticket/2269#comment:2>
TurboGears <http://www.turbogears.org/>
TurboGears front-to-back web development
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