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Made exception message more verbose

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This exception helps you to upgrade from 2 -> 3 and since a lot of fields may be in 2 using serializers.Field as parent class, this message should contain at least name of upgraded field to help user to grep and fix the codebase faster.
This commit is contained in:
Anton Chaporgin 2015-06-24 11:59:49 +03:00
parent a17270589c
commit 47acec0f9d
1 changed files with 3 additions and 2 deletions
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5
rest_framework/fields.py
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@ -417,10 +417,11 @@ class Field(object):
Transform the *outgoing* native value into primitive data.
"""
raise NotImplementedError(
'{cls}.to_representation() must be implemented.\n'
'{cls}.to_representation() must be implemented for field {field_name}.\n'
'If you are upgrading from REST framework version 2 '
'you might want `ReadOnlyField`.'.format(
cls=self.__class__.__name__
cls=self.__class__.__name__,
field_name=self.field_name,
)
)