cubicweb #689182 Improve the error message for StaticVocabularyConstraint [resolved]
Currently when we set a value for an attribute (for which a static vocabulary is defined) which is not in the possible values, we have an error like this:
value in (u'abc', u'def', u'ghi') constraint failed for value u'truc'
which is not very clear.
A message like this one is more appropriate:
invalid value for u'truc', value must be one of these (u'abc', u'def', u'ghi')
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