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Diffstat (limited to 'docs')
| -rw-r--r-- | docs/newforms.txt | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/docs/newforms.txt b/docs/newforms.txt index 26dde439ef..533ff75185 100644 --- a/docs/newforms.txt +++ b/docs/newforms.txt @@ -1549,15 +1549,23 @@ additional required argument: ``ModelChoiceField`` ~~~~~~~~~~~~~~~~~~~~ -Allows the selection of a single model object, suitable for -representing a foreign key. +Allows the selection of a single model object, suitable for representing a +foreign key. The method receives an object as an argument and must return a +string to represent it. + +The labels for the choice field call the ``__unicode__`` method of the model to +generate string representations. To provide custom labels, subclass ``ModelChoiceField`` and override ``label_for_model``:: + + class MyModelChoiceField(ModelChoiceField): + def label_from_instance(self, obj): + return "My Object #%i" % obj.id ``ModelMultipleChoiceField`` ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -Allows the selection of one or more model objects, suitable for -representing a many-to-many relation. - +Allows the selection of one or more model objects, suitable for representing a +many-to-many relation. As with ``ModelChoiceField``, you can use +``label_from_instance`` to customize the object labels. Creating custom fields ---------------------- |