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[1.8.x] Update converters to take a consistent set of parameters.

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As suggested by Anssi. This has the slightly strange side effect of
passing the expression to Expression.convert_value has the expression
passed back to it, but it allows more complex patterns of expressions.

Backport of 32d4db66b9 from master
This commit is contained in:
Marc Tamlyn 2015-02-20 10:53:59 +00:00
parent c54d73ae01
commit 3886338c1d
19 changed files with 44 additions and 46 deletions
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2
docs/ref/models/expressions.txt
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@ -416,7 +416,7 @@ calling the appropriate methods on the wrapped expression.
clone.expression = self.expression.relabeled_clone(change_map)
return clone
.. method:: convert_value(self, value, connection, context)
.. method:: convert_value(self, value, expression, connection, context)
A hook allowing the expression to coerce ``value`` into a more
appropriate type.

2
docs/ref/models/fields.txt
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@ -1679,7 +1679,7 @@ Field API reference
When loading data, :meth:`from_db_value` is used:
.. method:: from_db_value(value, connection, context)
.. method:: from_db_value(value, expression, connection, context)
.. versionadded:: 1.8