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Prefer `load_from` in nested errors about required fields #414

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commented Mar 10, 2016

Given this schema

class UserSchema(Schema):
    time_registered = fields.DateTime(load_from='timeRegistered', required=True)

class BlogSchema(Schema):
    user = fields.Nested(UserSchema, required=True)

loading {} and {"user": {}} raises errors with different field names:

>>> schema = BlogSchema()

>>> schema.load({}).errors
{'user': {'time_registered': [u'Missing data for required field.']}}  # Invalid

>>> schema.load({"user": {}}).errors
{'user': {'timeRegistered': [u'Missing data for required field.']}}  # Valid

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commented Mar 11, 2016

Cherry-picked 528c36d into 2.6-line then forward-ported to dev. Thanks for the fix!

@sloria sloria closed this Mar 11, 2016

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