hi z3c.form gurus,
i've successfully implemented some z3c.forms for custom AT types into
plone. They work fine, but i noticed that entering a non-ascii character
like 'Ö' for Österreich the default BaseDataConverter raises a
UnicodeDecodeError in z3c.form.converter.
...
Module z3c.form.form, line 196, in __call__
Module z3c.form.form, line 191, in update
Module z3c.form.form, line 141, in update
Module z3c.form.form, line 133, in updateWidgets
Module z3c.form.field, line 259, in update
Module z3c.form.browser.text, line 35, in update
Module z3c.form.browser.widget, line 61, in update
Module z3c.form.widget, line 119, in update
Module z3c.form.converter, line 49, in toWidgetValue
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 1:
ordinal not in range(128)
It tries to return unicode(value).
When i changed this statement into return unicode(value.decode('utf-8'))
it worked - could there be an issue with the charset/encoding when
ATFieldProperty is used? maybe there's a encoding difference between
accessor and atfieldproperty?
After changing this, i'm able to view the form, but not able to save it,
because in z3c.form.form in applyChanges again a UnicodeDecodeError is
raised. I've played around with the debugger:
(Pdb) l
46
47
48 import pdb; pdb.set_trace()
49
50 # Only update the data, if it is different
51 -> if dm.get() != data[name]:
52 dm.set(data[name])
53 # Record the change using information required later
54 changes.setdefault(dm.field.interface, []).append(name)
55 return changes
56
(Pdb)
-> if dm.get() != data[name]:
(Pdb) dm.get()
'B\xc3\xbcndtlittenstrasse 3a'
(Pdb) data[name]
u'B\xfcndtlittenstrasse 3a'
(Pdb) isinstance(dm.get(), unicode)
False
(Pdb) isinstance(data[name], unicode)
True
(Pdb) unicode(dm.get())
*** UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position
1: ordinal not in range(128)
(Pdb) unicode(dm.get().decode('utf-8'))
u'B\xfcndtlittenstrasse 3a'
(Pdb) data[name] == unicode(dm.get().decode('utf-8'))
True
(Pdb)
i had a look into z3c.form 2.0 but could not see any fix in there. So -
i think i'm doing something wrong here, could anybody point me into the
right direction?
thanks
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